diff options
Diffstat (limited to 'googlemock/test/gmock-matchers_test.cc')
| -rw-r--r-- | googlemock/test/gmock-matchers_test.cc | 8562 |
1 files changed, 0 insertions, 8562 deletions
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc deleted file mode 100644 index 1f48a76c..00000000 --- a/googlemock/test/gmock-matchers_test.cc +++ /dev/null @@ -1,8562 +0,0 @@ -// Copyright 2007, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - -// Google Mock - a framework for writing C++ mock classes. -// -// This file tests some commonly used argument matchers. - -// Silence warning C4244: 'initializing': conversion from 'int' to 'short', -// possible loss of data and C4100, unreferenced local parameter -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable:4244) -# pragma warning(disable:4100) -#endif - -#include "gmock/gmock-matchers.h" - -#include <string.h> -#include <time.h> - -#include <array> -#include <cstdint> -#include <deque> -#include <forward_list> -#include <functional> -#include <iostream> -#include <iterator> -#include <limits> -#include <list> -#include <map> -#include <memory> -#include <set> -#include <sstream> -#include <string> -#include <type_traits> -#include <unordered_map> -#include <unordered_set> -#include <utility> -#include <vector> - -#include "gmock/gmock-more-matchers.h" -#include "gmock/gmock.h" -#include "gtest/gtest-spi.h" -#include "gtest/gtest.h" - -namespace testing { -namespace gmock_matchers_test { -namespace { - -using std::greater; -using std::less; -using std::list; -using std::make_pair; -using std::map; -using std::multimap; -using std::multiset; -using std::ostream; -using std::pair; -using std::set; -using std::stringstream; -using std::vector; -using testing::internal::DummyMatchResultListener; -using testing::internal::ElementMatcherPair; -using testing::internal::ElementMatcherPairs; -using testing::internal::ElementsAreArrayMatcher; -using testing::internal::ExplainMatchFailureTupleTo; -using testing::internal::FloatingEqMatcher; -using testing::internal::FormatMatcherDescription; -using testing::internal::IsReadableTypeName; -using testing::internal::MatchMatrix; -using testing::internal::PredicateFormatterFromMatcher; -using testing::internal::RE; -using testing::internal::StreamMatchResultListener; -using testing::internal::Strings; - -// Helper for testing container-valued matchers in mock method context. It is -// important to test matchers in this context, since it requires additional type -// deduction beyond what EXPECT_THAT does, thus making it more restrictive. -struct ContainerHelper { - MOCK_METHOD1(Call, void(std::vector<std::unique_ptr<int>>)); -}; - -std::vector<std::unique_ptr<int>> MakeUniquePtrs(const std::vector<int>& ints) { - std::vector<std::unique_ptr<int>> pointers; - for (int i : ints) pointers.emplace_back(new int(i)); - return pointers; -} - -// For testing ExplainMatchResultTo(). -class GreaterThanMatcher : public MatcherInterface<int> { - public: - explicit GreaterThanMatcher(int rhs) : rhs_(rhs) {} - - void DescribeTo(ostream* os) const override { *os << "is > " << rhs_; } - - bool MatchAndExplain(int lhs, MatchResultListener* listener) const override { - const int diff = lhs - rhs_; - if (diff > 0) { - *listener << "which is " << diff << " more than " << rhs_; - } else if (diff == 0) { - *listener << "which is the same as " << rhs_; - } else { - *listener << "which is " << -diff << " less than " << rhs_; - } - - return lhs > rhs_; - } - - private: - int rhs_; -}; - -Matcher<int> GreaterThan(int n) { - return MakeMatcher(new GreaterThanMatcher(n)); -} - -std::string OfType(const std::string& type_name) { -#if GTEST_HAS_RTTI - return IsReadableTypeName(type_name) ? " (of type " + type_name + ")" : ""; -#else - return ""; -#endif -} - -// Returns the description of the given matcher. -template <typename T> -std::string Describe(const Matcher<T>& m) { - return DescribeMatcher<T>(m); -} - -// Returns the description of the negation of the given matcher. -template <typename T> -std::string DescribeNegation(const Matcher<T>& m) { - return DescribeMatcher<T>(m, true); -} - -// Returns the reason why x matches, or doesn't match, m. -template <typename MatcherType, typename Value> -std::string Explain(const MatcherType& m, const Value& x) { - StringMatchResultListener listener; - ExplainMatchResult(m, x, &listener); - return listener.str(); -} - -TEST(MonotonicMatcherTest, IsPrintable) { - stringstream ss; - ss << GreaterThan(5); - EXPECT_EQ("is > 5", ss.str()); -} - -TEST(MatchResultListenerTest, StreamingWorks) { - StringMatchResultListener listener; - listener << "hi" << 5; - EXPECT_EQ("hi5", listener.str()); - - listener.Clear(); - EXPECT_EQ("", listener.str()); - - listener << 42; - EXPECT_EQ("42", listener.str()); - - // Streaming shouldn't crash when the underlying ostream is NULL. - DummyMatchResultListener dummy; - dummy << "hi" << 5; -} - -TEST(MatchResultListenerTest, CanAccessUnderlyingStream) { - EXPECT_TRUE(DummyMatchResultListener().stream() == nullptr); - EXPECT_TRUE(StreamMatchResultListener(nullptr).stream() == nullptr); - - EXPECT_EQ(&std::cout, StreamMatchResultListener(&std::cout).stream()); -} - -TEST(MatchResultListenerTest, IsInterestedWorks) { - EXPECT_TRUE(StringMatchResultListener().IsInterested()); - EXPECT_TRUE(StreamMatchResultListener(&std::cout).IsInterested()); - - EXPECT_FALSE(DummyMatchResultListener().IsInterested()); - EXPECT_FALSE(StreamMatchResultListener(nullptr).IsInterested()); -} - -// Makes sure that the MatcherInterface<T> interface doesn't -// change. -class EvenMatcherImpl : public MatcherInterface<int> { - public: - bool MatchAndExplain(int x, - MatchResultListener* /* listener */) const override { - return x % 2 == 0; - } - - void DescribeTo(ostream* os) const override { *os << "is an even number"; } - - // We deliberately don't define DescribeNegationTo() and - // ExplainMatchResultTo() here, to make sure the definition of these - // two methods is optional. -}; - -// Makes sure that the MatcherInterface API doesn't change. -TEST(MatcherInterfaceTest, CanBeImplementedUsingPublishedAPI) { - EvenMatcherImpl m; -} - -// Tests implementing a monomorphic matcher using MatchAndExplain(). - -class NewEvenMatcherImpl : public MatcherInterface<int> { - public: - bool MatchAndExplain(int x, MatchResultListener* listener) const override { - const bool match = x % 2 == 0; - // Verifies that we can stream to a listener directly. - *listener << "value % " << 2; - if (listener->stream() != nullptr) { - // Verifies that we can stream to a listener's underlying stream - // too. - *listener->stream() << " == " << (x % 2); - } - return match; - } - - void DescribeTo(ostream* os) const override { *os << "is an even number"; } -}; - -TEST(MatcherInterfaceTest, CanBeImplementedUsingNewAPI) { - Matcher<int> m = MakeMatcher(new NewEvenMatcherImpl); - EXPECT_TRUE(m.Matches(2)); - EXPECT_FALSE(m.Matches(3)); - EXPECT_EQ("value % 2 == 0", Explain(m, 2)); - EXPECT_EQ("value % 2 == 1", Explain(m, 3)); -} - -// Tests default-constructing a matcher. -TEST(MatcherTest, CanBeDefaultConstructed) { - Matcher<double> m; -} - -// Tests that Matcher<T> can be constructed from a MatcherInterface<T>*. -TEST(MatcherTest, CanBeConstructedFromMatcherInterface) { - const MatcherInterface<int>* impl = new EvenMatcherImpl; - Matcher<int> m(impl); - EXPECT_TRUE(m.Matches(4)); - EXPECT_FALSE(m.Matches(5)); -} - -// Tests that value can be used in place of Eq(value). -TEST(MatcherTest, CanBeImplicitlyConstructedFromValue) { - Matcher<int> m1 = 5; - EXPECT_TRUE(m1.Matches(5)); - EXPECT_FALSE(m1.Matches(6)); -} - -// Tests that NULL can be used in place of Eq(NULL). -TEST(MatcherTest, CanBeImplicitlyConstructedFromNULL) { - Matcher<int*> m1 = nullptr; - EXPECT_TRUE(m1.Matches(nullptr)); - int n = 0; - EXPECT_FALSE(m1.Matches(&n)); -} - -// Tests that matchers can be constructed from a variable that is not properly -// defined. This should be illegal, but many users rely on this accidentally. -struct Undefined { - virtual ~Undefined() = 0; - static const int kInt = 1; -}; - -TEST(MatcherTest, CanBeConstructedFromUndefinedVariable) { - Matcher<int> m1 = Undefined::kInt; - EXPECT_TRUE(m1.Matches(1)); - EXPECT_FALSE(m1.Matches(2)); -} - -// Test that a matcher parameterized with an abstract class compiles. -TEST(MatcherTest, CanAcceptAbstractClass) { Matcher<const Undefined&> m = _; } - -// Tests that matchers are copyable. -TEST(MatcherTest, IsCopyable) { - // Tests the copy constructor. - Matcher<bool> m1 = Eq(false); - EXPECT_TRUE(m1.Matches(false)); - EXPECT_FALSE(m1.Matches(true)); - - // Tests the assignment operator. - m1 = Eq(true); - EXPECT_TRUE(m1.Matches(true)); - EXPECT_FALSE(m1.Matches(false)); -} - -// Tests that Matcher<T>::DescribeTo() calls -// MatcherInterface<T>::DescribeTo(). -TEST(MatcherTest, CanDescribeItself) { - EXPECT_EQ("is an even number", - Describe(Matcher<int>(new EvenMatcherImpl))); -} - -// Tests Matcher<T>::MatchAndExplain(). -TEST(MatcherTest, MatchAndExplain) { - Matcher<int> m = GreaterThan(0); - StringMatchResultListener listener1; - EXPECT_TRUE(m.MatchAndExplain(42, &listener1)); - EXPECT_EQ("which is 42 more than 0", listener1.str()); - - StringMatchResultListener listener2; - EXPECT_FALSE(m.MatchAndExplain(-9, &listener2)); - EXPECT_EQ("which is 9 less than 0", listener2.str()); -} - -// Tests that a C-string literal can be implicitly converted to a -// Matcher<std::string> or Matcher<const std::string&>. -TEST(StringMatcherTest, CanBeImplicitlyConstructedFromCStringLiteral) { - Matcher<std::string> m1 = "hi"; - EXPECT_TRUE(m1.Matches("hi")); - EXPECT_FALSE(m1.Matches("hello")); - - Matcher<const std::string&> m2 = "hi"; - EXPECT_TRUE(m2.Matches("hi")); - EXPECT_FALSE(m2.Matches("hello")); -} - -// Tests that a string object can be implicitly converted to a -// Matcher<std::string> or Matcher<const std::string&>. -TEST(StringMatcherTest, CanBeImplicitlyConstructedFromString) { - Matcher<std::string> m1 = std::string("hi"); - EXPECT_TRUE(m1.Matches("hi")); - EXPECT_FALSE(m1.Matches("hello")); - - Matcher<const std::string&> m2 = std::string("hi"); - EXPECT_TRUE(m2.Matches("hi")); - EXPECT_FALSE(m2.Matches("hello")); -} - -#if GTEST_INTERNAL_HAS_STRING_VIEW -// Tests that a C-string literal can be implicitly converted to a -// Matcher<StringView> or Matcher<const StringView&>. -TEST(StringViewMatcherTest, CanBeImplicitlyConstructedFromCStringLiteral) { - Matcher<internal::StringView> m1 = "cats"; - EXPECT_TRUE(m1.Matches("cats")); - EXPECT_FALSE(m1.Matches("dogs")); - - Matcher<const internal::StringView&> m2 = "cats"; - EXPECT_TRUE(m2.Matches("cats")); - EXPECT_FALSE(m2.Matches("dogs")); -} - -// Tests that a std::string object can be implicitly converted to a -// Matcher<StringView> or Matcher<const StringView&>. -TEST(StringViewMatcherTest, CanBeImplicitlyConstructedFromString) { - Matcher<internal::StringView> m1 = std::string("cats"); - EXPECT_TRUE(m1.Matches("cats")); - EXPECT_FALSE(m1.Matches("dogs")); - - Matcher<const internal::StringView&> m2 = std::string("cats"); - EXPECT_TRUE(m2.Matches("cats")); - EXPECT_FALSE(m2.Matches("dogs")); -} - -// Tests that a StringView object can be implicitly converted to a -// Matcher<StringView> or Matcher<const StringView&>. -TEST(StringViewMatcherTest, CanBeImplicitlyConstructedFromStringView) { - Matcher<internal::StringView> m1 = internal::StringView("cats"); - EXPECT_TRUE(m1.Matches("cats")); - EXPECT_FALSE(m1.Matches("dogs")); - - Matcher<const internal::StringView&> m2 = internal::StringView("cats"); - EXPECT_TRUE(m2.Matches("cats")); - EXPECT_FALSE(m2.Matches("dogs")); -} -#endif // GTEST_INTERNAL_HAS_STRING_VIEW - -// Tests that a std::reference_wrapper<std::string> object can be implicitly -// converted to a Matcher<std::string> or Matcher<const std::string&> via Eq(). -TEST(StringMatcherTest, - CanBeImplicitlyConstructedFromEqReferenceWrapperString) { - std::string value = "cats"; - Matcher<std::string> m1 = Eq(std::ref(value)); - EXPECT_TRUE(m1.Matches("cats")); - EXPECT_FALSE(m1.Matches("dogs")); - - Matcher<const std::string&> m2 = Eq(std::ref(value)); - EXPECT_TRUE(m2.Matches("cats")); - EXPECT_FALSE(m2.Matches("dogs")); -} - -// Tests that MakeMatcher() constructs a Matcher<T> from a -// MatcherInterface* without requiring the user to explicitly -// write the type. -TEST(MakeMatcherTest, ConstructsMatcherFromMatcherInterface) { - const MatcherInterface<int>* dummy_impl = new EvenMatcherImpl; - Matcher<int> m = MakeMatcher(dummy_impl); -} - -// Tests that MakePolymorphicMatcher() can construct a polymorphic -// matcher from its implementation using the old API. -const int g_bar = 1; -class ReferencesBarOrIsZeroImpl { - public: - template <typename T> - bool MatchAndExplain(const T& x, - MatchResultListener* /* listener */) const { - const void* p = &x; - return p == &g_bar || x == 0; - } - - void DescribeTo(ostream* os) const { *os << "g_bar or zero"; } - - void DescribeNegationTo(ostream* os) const { - *os << "doesn't reference g_bar and is not zero"; - } -}; - -// This function verifies that MakePolymorphicMatcher() returns a -// PolymorphicMatcher<T> where T is the argument's type. -PolymorphicMatcher<ReferencesBarOrIsZeroImpl> ReferencesBarOrIsZero() { - return MakePolymorphicMatcher(ReferencesBarOrIsZeroImpl()); -} - -TEST(MakePolymorphicMatcherTest, ConstructsMatcherUsingOldAPI) { - // Using a polymorphic matcher to match a reference type. - Matcher<const int&> m1 = ReferencesBarOrIsZero(); - EXPECT_TRUE(m1.Matches(0)); - // Verifies that the identity of a by-reference argument is preserved. - EXPECT_TRUE(m1.Matches(g_bar)); - EXPECT_FALSE(m1.Matches(1)); - EXPECT_EQ("g_bar or zero", Describe(m1)); - - // Using a polymorphic matcher to match a value type. - Matcher<double> m2 = ReferencesBarOrIsZero(); - EXPECT_TRUE(m2.Matches(0.0)); - EXPECT_FALSE(m2.Matches(0.1)); - EXPECT_EQ("g_bar or zero", Describe(m2)); -} - -// Tests implementing a polymorphic matcher using MatchAndExplain(). - -class PolymorphicIsEvenImpl { - public: - void DescribeTo(ostream* os) const { *os << "is even"; } - - void DescribeNegationTo(ostream* os) const { - *os << "is odd"; - } - - template <typename T> - bool MatchAndExplain(const T& x, MatchResultListener* listener) const { - // Verifies that we can stream to the listener directly. - *listener << "% " << 2; - if (listener->stream() != nullptr) { - // Verifies that we can stream to the listener's underlying stream - // too. - *listener->stream() << " == " << (x % 2); - } - return (x % 2) == 0; - } -}; - -PolymorphicMatcher<PolymorphicIsEvenImpl> PolymorphicIsEven() { - return MakePolymorphicMatcher(PolymorphicIsEvenImpl()); -} - -TEST(MakePolymorphicMatcherTest, ConstructsMatcherUsingNewAPI) { - // Using PolymorphicIsEven() as a Matcher<int>. - const Matcher<int> m1 = PolymorphicIsEven(); - EXPECT_TRUE(m1.Matches(42)); - EXPECT_FALSE(m1.Matches(43)); - EXPECT_EQ("is even", Describe(m1)); - - const Matcher<int> not_m1 = Not(m1); - EXPECT_EQ("is odd", Describe(not_m1)); - - EXPECT_EQ("% 2 == 0", Explain(m1, 42)); - - // Using PolymorphicIsEven() as a Matcher<char>. - const Matcher<char> m2 = PolymorphicIsEven(); - EXPECT_TRUE(m2.Matches('\x42')); - EXPECT_FALSE(m2.Matches('\x43')); - EXPECT_EQ("is even", Describe(m2)); - - const Matcher<char> not_m2 = Not(m2); - EXPECT_EQ("is odd", Describe(not_m2)); - - EXPECT_EQ("% 2 == 0", Explain(m2, '\x42')); -} - -// Tests that MatcherCast<T>(m) works when m is a polymorphic matcher. -TEST(MatcherCastTest, FromPolymorphicMatcher) { - Matcher<int> m = MatcherCast<int>(Eq(5)); - EXPECT_TRUE(m.Matches(5)); - EXPECT_FALSE(m.Matches(6)); -} - -// For testing casting matchers between compatible types. -class IntValue { - public: - // An int can be statically (although not implicitly) cast to a - // IntValue. - explicit IntValue(int a_value) : value_(a_value) {} - - int value() const { return value_; } - private: - int value_; -}; - -// For testing casting matchers between compatible types. -bool IsPositiveIntValue(const IntValue& foo) { - return foo.value() > 0; -} - -// Tests that MatcherCast<T>(m) works when m is a Matcher<U> where T -// can be statically converted to U. -TEST(MatcherCastTest, FromCompatibleType) { - Matcher<double> m1 = Eq(2.0); - Matcher<int> m2 = MatcherCast<int>(m1); - EXPECT_TRUE(m2.Matches(2)); - EXPECT_FALSE(m2.Matches(3)); - - Matcher<IntValue> m3 = Truly(IsPositiveIntValue); - Matcher<int> m4 = MatcherCast<int>(m3); - // In the following, the arguments 1 and 0 are statically converted - // to IntValue objects, and then tested by the IsPositiveIntValue() - // predicate. - EXPECT_TRUE(m4.Matches(1)); - EXPECT_FALSE(m4.Matches(0)); -} - -// Tests that MatcherCast<T>(m) works when m is a Matcher<const T&>. -TEST(MatcherCastTest, FromConstReferenceToNonReference) { - Matcher<const int&> m1 = Eq(0); - Matcher<int> m2 = MatcherCast<int>(m1); - EXPECT_TRUE(m2.Matches(0)); - EXPECT_FALSE(m2.Matches(1)); -} - -// Tests that MatcherCast<T>(m) works when m is a Matcher<T&>. -TEST(MatcherCastTest, FromReferenceToNonReference) { - Matcher<int&> m1 = Eq(0); - Matcher<int> m2 = MatcherCast<int>(m1); - EXPECT_TRUE(m2.Matches(0)); - EXPECT_FALSE(m2.Matches(1)); -} - -// Tests that MatcherCast<const T&>(m) works when m is a Matcher<T>. -TEST(MatcherCastTest, FromNonReferenceToConstReference) { - Matcher<int> m1 = Eq(0); - Matcher<const int&> m2 = MatcherCast<const int&>(m1); - EXPECT_TRUE(m2.Matches(0)); - EXPECT_FALSE(m2.Matches(1)); -} - -// Tests that MatcherCast<T&>(m) works when m is a Matcher<T>. -TEST(MatcherCastTest, FromNonReferenceToReference) { - Matcher<int> m1 = Eq(0); - Matcher<int&> m2 = MatcherCast<int&>(m1); - int n = 0; - EXPECT_TRUE(m2.Matches(n)); - n = 1; - EXPECT_FALSE(m2.Matches(n)); -} - -// Tests that MatcherCast<T>(m) works when m is a Matcher<T>. -TEST(MatcherCastTest, FromSameType) { - Matcher<int> m1 = Eq(0); - Matcher<int> m2 = MatcherCast<int>(m1); - EXPECT_TRUE(m2.Matches(0)); - EXPECT_FALSE(m2.Matches(1)); -} - -// Tests that MatcherCast<T>(m) works when m is a value of the same type as the -// value type of the Matcher. -TEST(MatcherCastTest, FromAValue) { - Matcher<int> m = MatcherCast<int>(42); - EXPECT_TRUE(m.Matches(42)); - EXPECT_FALSE(m.Matches(239)); -} - -// Tests that MatcherCast<T>(m) works when m is a value of the type implicitly -// convertible to the value type of the Matcher. -TEST(MatcherCastTest, FromAnImplicitlyConvertibleValue) { - const int kExpected = 'c'; - Matcher<int> m = MatcherCast<int>('c'); - EXPECT_TRUE(m.Matches(kExpected)); - EXPECT_FALSE(m.Matches(kExpected + 1)); -} - -struct NonImplicitlyConstructibleTypeWithOperatorEq { - friend bool operator==( - const NonImplicitlyConstructibleTypeWithOperatorEq& /* ignored */, - int rhs) { - return 42 == rhs; - } - friend bool operator==( - int lhs, - const NonImplicitlyConstructibleTypeWithOperatorEq& /* ignored */) { - return lhs == 42; - } -}; - -// Tests that MatcherCast<T>(m) works when m is a neither a matcher nor -// implicitly convertible to the value type of the Matcher, but the value type -// of the matcher has operator==() overload accepting m. -TEST(MatcherCastTest, NonImplicitlyConstructibleTypeWithOperatorEq) { - Matcher<NonImplicitlyConstructibleTypeWithOperatorEq> m1 = - MatcherCast<NonImplicitlyConstructibleTypeWithOperatorEq>(42); - EXPECT_TRUE(m1.Matches(NonImplicitlyConstructibleTypeWithOperatorEq())); - - Matcher<NonImplicitlyConstructibleTypeWithOperatorEq> m2 = - MatcherCast<NonImplicitlyConstructibleTypeWithOperatorEq>(239); - EXPECT_FALSE(m2.Matches(NonImplicitlyConstructibleTypeWithOperatorEq())); - - // When updating the following lines please also change the comment to - // namespace convertible_from_any. - Matcher<int> m3 = - MatcherCast<int>(NonImplicitlyConstructibleTypeWithOperatorEq()); - EXPECT_TRUE(m3.Matches(42)); - EXPECT_FALSE(m3.Matches(239)); -} - -// ConvertibleFromAny does not work with MSVC. resulting in -// error C2440: 'initializing': cannot convert from 'Eq' to 'M' -// No constructor could take the source type, or constructor overload -// resolution was ambiguous - -#if !defined _MSC_VER - -// The below ConvertibleFromAny struct is implicitly constructible from anything -// and when in the same namespace can interact with other tests. In particular, -// if it is in the same namespace as other tests and one removes -// NonImplicitlyConstructibleTypeWithOperatorEq::operator==(int lhs, ...); -// then the corresponding test still compiles (and it should not!) by implicitly -// converting NonImplicitlyConstructibleTypeWithOperatorEq to ConvertibleFromAny -// in m3.Matcher(). -namespace convertible_from_any { -// Implicitly convertible from any type. -struct ConvertibleFromAny { - ConvertibleFromAny(int a_value) : value(a_value) {} - template <typename T> - ConvertibleFromAny(const T& /*a_value*/) : value(-1) { - ADD_FAILURE() << "Conversion constructor called"; - } - int value; -}; - -bool operator==(const ConvertibleFromAny& a, const ConvertibleFromAny& b) { - return a.value == b.value; -} - -ostream& operator<<(ostream& os, const ConvertibleFromAny& a) { - return os << a.value; -} - -TEST(MatcherCastTest, ConversionConstructorIsUsed) { - Matcher<ConvertibleFromAny> m = MatcherCast<ConvertibleFromAny>(1); - EXPECT_TRUE(m.Matches(ConvertibleFromAny(1))); - EXPECT_FALSE(m.Matches(ConvertibleFromAny(2))); -} - -TEST(MatcherCastTest, FromConvertibleFromAny) { - Matcher<ConvertibleFromAny> m = - MatcherCast<ConvertibleFromAny>(Eq(ConvertibleFromAny(1))); - EXPECT_TRUE(m.Matches(ConvertibleFromAny(1))); - EXPECT_FALSE(m.Matches(ConvertibleFromAny(2))); -} -} // namespace convertible_from_any - -#endif // !defined _MSC_VER - -struct IntReferenceWrapper { - IntReferenceWrapper(const int& a_value) : value(&a_value) {} - const int* value; -}; - -bool operator==(const IntReferenceWrapper& a, const IntReferenceWrapper& b) { - return a.value == b.value; -} - -TEST(MatcherCastTest, ValueIsNotCopied) { - int n = 42; - Matcher<IntReferenceWrapper> m = MatcherCast<IntReferenceWrapper>(n); - // Verify that the matcher holds a reference to n, not to its temporary copy. - EXPECT_TRUE(m.Matches(n)); -} - -class Base { - public: - virtual ~Base() {} - Base() {} - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(Base); -}; - -class Derived : public Base { - public: - Derived() : Base() {} - int i; -}; - -class OtherDerived : public Base {}; - -// Tests that SafeMatcherCast<T>(m) works when m is a polymorphic matcher. -TEST(SafeMatcherCastTest, FromPolymorphicMatcher) { - Matcher<char> m2 = SafeMatcherCast<char>(Eq(32)); - EXPECT_TRUE(m2.Matches(' ')); - EXPECT_FALSE(m2.Matches('\n')); -} - -// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<U> where -// T and U are arithmetic types and T can be losslessly converted to -// U. -TEST(SafeMatcherCastTest, FromLosslesslyConvertibleArithmeticType) { - Matcher<double> m1 = DoubleEq(1.0); - Matcher<float> m2 = SafeMatcherCast<float>(m1); - EXPECT_TRUE(m2.Matches(1.0f)); - EXPECT_FALSE(m2.Matches(2.0f)); - - Matcher<char> m3 = SafeMatcherCast<char>(TypedEq<int>('a')); - EXPECT_TRUE(m3.Matches('a')); - EXPECT_FALSE(m3.Matches('b')); -} - -// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<U> where T and U -// are pointers or references to a derived and a base class, correspondingly. -TEST(SafeMatcherCastTest, FromBaseClass) { - Derived d, d2; - Matcher<Base*> m1 = Eq(&d); - Matcher<Derived*> m2 = SafeMatcherCast<Derived*>(m1); - EXPECT_TRUE(m2.Matches(&d)); - EXPECT_FALSE(m2.Matches(&d2)); - - Matcher<Base&> m3 = Ref(d); - Matcher<Derived&> m4 = SafeMatcherCast<Derived&>(m3); - EXPECT_TRUE(m4.Matches(d)); - EXPECT_FALSE(m4.Matches(d2)); -} - -// Tests that SafeMatcherCast<T&>(m) works when m is a Matcher<const T&>. -TEST(SafeMatcherCastTest, FromConstReferenceToReference) { - int n = 0; - Matcher<const int&> m1 = Ref(n); - Matcher<int&> m2 = SafeMatcherCast<int&>(m1); - int n1 = 0; - EXPECT_TRUE(m2.Matches(n)); - EXPECT_FALSE(m2.Matches(n1)); -} - -// Tests that MatcherCast<const T&>(m) works when m is a Matcher<T>. -TEST(SafeMatcherCastTest, FromNonReferenceToConstReference) { - Matcher<std::unique_ptr<int>> m1 = IsNull(); - Matcher<const std::unique_ptr<int>&> m2 = - SafeMatcherCast<const std::unique_ptr<int>&>(m1); - EXPECT_TRUE(m2.Matches(std::unique_ptr<int>())); - EXPECT_FALSE(m2.Matches(std::unique_ptr<int>(new int))); -} - -// Tests that SafeMatcherCast<T&>(m) works when m is a Matcher<T>. -TEST(SafeMatcherCastTest, FromNonReferenceToReference) { - Matcher<int> m1 = Eq(0); - Matcher<int&> m2 = SafeMatcherCast<int&>(m1); - int n = 0; - EXPECT_TRUE(m2.Matches(n)); - n = 1; - EXPECT_FALSE(m2.Matches(n)); -} - -// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<T>. -TEST(SafeMatcherCastTest, FromSameType) { - Matcher<int> m1 = Eq(0); - Matcher<int> m2 = SafeMatcherCast<int>(m1); - EXPECT_TRUE(m2.Matches(0)); - EXPECT_FALSE(m2.Matches(1)); -} - -#if !defined _MSC_VER - -namespace convertible_from_any { -TEST(SafeMatcherCastTest, ConversionConstructorIsUsed) { - Matcher<ConvertibleFromAny> m = SafeMatcherCast<ConvertibleFromAny>(1); - EXPECT_TRUE(m.Matches(ConvertibleFromAny(1))); - EXPECT_FALSE(m.Matches(ConvertibleFromAny(2))); -} - -TEST(SafeMatcherCastTest, FromConvertibleFromAny) { - Matcher<ConvertibleFromAny> m = - SafeMatcherCast<ConvertibleFromAny>(Eq(ConvertibleFromAny(1))); - EXPECT_TRUE(m.Matches(ConvertibleFromAny(1))); - EXPECT_FALSE(m.Matches(ConvertibleFromAny(2))); -} -} // namespace convertible_from_any - -#endif // !defined _MSC_VER - -TEST(SafeMatcherCastTest, ValueIsNotCopied) { - int n = 42; - Matcher<IntReferenceWrapper> m = SafeMatcherCast<IntReferenceWrapper>(n); - // Verify that the matcher holds a reference to n, not to its temporary copy. - EXPECT_TRUE(m.Matches(n)); -} - -TEST(ExpectThat, TakesLiterals) { - EXPECT_THAT(1, 1); - EXPECT_THAT(1.0, 1.0); - EXPECT_THAT(std::string(), ""); -} - -TEST(ExpectThat, TakesFunctions) { - struct Helper { - static void Func() {} - }; - void (*func)() = Helper::Func; - EXPECT_THAT(func, Helper::Func); - EXPECT_THAT(func, &Helper::Func); -} - -// Tests that A<T>() matches any value of type T. -TEST(ATest, MatchesAnyValue) { - // Tests a matcher for a value type. - Matcher<double> m1 = A<double>(); - EXPECT_TRUE(m1.Matches(91.43)); - EXPECT_TRUE(m1.Matches(-15.32)); - - // Tests a matcher for a reference type. - int a = 2; - int b = -6; - Matcher<int&> m2 = A<int&>(); - EXPECT_TRUE(m2.Matches(a)); - EXPECT_TRUE(m2.Matches(b)); -} - -TEST(ATest, WorksForDerivedClass) { - Base base; - Derived derived; - EXPECT_THAT(&base, A<Base*>()); - // This shouldn't compile: EXPECT_THAT(&base, A<Derived*>()); - EXPECT_THAT(&derived, A<Base*>()); - EXPECT_THAT(&derived, A<Derived*>()); -} - -// Tests that A<T>() describes itself properly. -TEST(ATest, CanDescribeSelf) { - EXPECT_EQ("is anything", Describe(A<bool>())); -} - -// Tests that An<T>() matches any value of type T. -TEST(AnTest, MatchesAnyValue) { - // Tests a matcher for a value type. - Matcher<int> m1 = An<int>(); - EXPECT_TRUE(m1.Matches(9143)); - EXPECT_TRUE(m1.Matches(-1532)); - - // Tests a matcher for a reference type. - int a = 2; - int b = -6; - Matcher<int&> m2 = An<int&>(); - EXPECT_TRUE(m2.Matches(a)); - EXPECT_TRUE(m2.Matches(b)); -} - -// Tests that An<T>() describes itself properly. -TEST(AnTest, CanDescribeSelf) { - EXPECT_EQ("is anything", Describe(An<int>())); -} - -// Tests that _ can be used as a matcher for any type and matches any -// value of that type. -TEST(UnderscoreTest, MatchesAnyValue) { - // Uses _ as a matcher for a value type. - Matcher<int> m1 = _; - EXPECT_TRUE(m1.Matches(123)); - EXPECT_TRUE(m1.Matches(-242)); - - // Uses _ as a matcher for a reference type. - bool a = false; - const bool b = true; - Matcher<const bool&> m2 = _; - EXPECT_TRUE(m2.Matches(a)); - EXPECT_TRUE(m2.Matches(b)); -} - -// Tests that _ describes itself properly. -TEST(UnderscoreTest, CanDescribeSelf) { - Matcher<int> m = _; - EXPECT_EQ("is anything", Describe(m)); -} - -// Tests that Eq(x) matches any value equal to x. -TEST(EqTest, MatchesEqualValue) { - // 2 C-strings with same content but different addresses. - const char a1[] = "hi"; - const char a2[] = "hi"; - - Matcher<const char*> m1 = Eq(a1); - EXPECT_TRUE(m1.Matches(a1)); - EXPECT_FALSE(m1.Matches(a2)); -} - -// Tests that Eq(v) describes itself properly. - -class Unprintable { - public: - Unprintable() : c_('a') {} - - bool operator==(const Unprintable& /* rhs */) const { return true; } - // -Wunused-private-field: dummy accessor for `c_`. - char dummy_c() { return c_; } - private: - char c_; -}; - -TEST(EqTest, CanDescribeSelf) { - Matcher<Unprintable> m = Eq(Unprintable()); - EXPECT_EQ("is equal to 1-byte object <61>", Describe(m)); -} - -// Tests that Eq(v) can be used to match any type that supports -// comparing with type T, where T is v's type. -TEST(EqTest, IsPolymorphic) { - Matcher<int> m1 = Eq(1); - EXPECT_TRUE(m1.Matches(1)); - EXPECT_FALSE(m1.Matches(2)); - - Matcher<char> m2 = Eq(1); - EXPECT_TRUE(m2.Matches('\1')); - EXPECT_FALSE(m2.Matches('a')); -} - -// Tests that TypedEq<T>(v) matches values of type T that's equal to v. -TEST(TypedEqTest, ChecksEqualityForGivenType) { - Matcher<char> m1 = TypedEq<char>('a'); - EXPECT_TRUE(m1.Matches('a')); - EXPECT_FALSE(m1.Matches('b')); - - Matcher<int> m2 = TypedEq<int>(6); - EXPECT_TRUE(m2.Matches(6)); - EXPECT_FALSE(m2.Matches(7)); -} - -// Tests that TypedEq(v) describes itself properly. -TEST(TypedEqTest, CanDescribeSelf) { - EXPECT_EQ("is equal to 2", Describe(TypedEq<int>(2))); -} - -// Tests that TypedEq<T>(v) has type Matcher<T>. - -// Type<T>::IsTypeOf(v) compiles if and only if the type of value v is T, where -// T is a "bare" type (i.e. not in the form of const U or U&). If v's type is -// not T, the compiler will generate a message about "undefined reference". -template <typename T> -struct Type { - static bool IsTypeOf(const T& /* v */) { return true; } - - template <typename T2> - static void IsTypeOf(T2 v); -}; - -TEST(TypedEqTest, HasSpecifiedType) { - // Verfies that the type of TypedEq<T>(v) is Matcher<T>. - Type<Matcher<int> >::IsTypeOf(TypedEq<int>(5)); - Type<Matcher<double> >::IsTypeOf(TypedEq<double>(5)); -} - -// Tests that Ge(v) matches anything >= v. -TEST(GeTest, ImplementsGreaterThanOrEqual) { - Matcher<int> m1 = Ge(0); - EXPECT_TRUE(m1.Matches(1)); - EXPECT_TRUE(m1.Matches(0)); - EXPECT_FALSE(m1.Matches(-1)); -} - -// Tests that Ge(v) describes itself properly. -TEST(GeTest, CanDescribeSelf) { - Matcher<int> m = Ge(5); - EXPECT_EQ("is >= 5", Describe(m)); -} - -// Tests that Gt(v) matches anything > v. -TEST(GtTest, ImplementsGreaterThan) { - Matcher<double> m1 = Gt(0); - EXPECT_TRUE(m1.Matches(1.0)); - EXPECT_FALSE(m1.Matches(0.0)); - EXPECT_FALSE(m1.Matches(-1.0)); -} - -// Tests that Gt(v) describes itself properly. -TEST(GtTest, CanDescribeSelf) { - Matcher<int> m = Gt(5); - EXPECT_EQ("is > 5", Describe(m)); -} - -// Tests that Le(v) matches anything <= v. -TEST(LeTest, ImplementsLessThanOrEqual) { - Matcher<char> m1 = Le('b'); - EXPECT_TRUE(m1.Matches('a')); - EXPECT_TRUE(m1.Matches('b')); - EXPECT_FALSE(m1.Matches('c')); -} - -// Tests that Le(v) describes itself properly. -TEST(LeTest, CanDescribeSelf) { - Matcher<int> m = Le(5); - EXPECT_EQ("is <= 5", Describe(m)); -} - -// Tests that Lt(v) matches anything < v. -TEST(LtTest, ImplementsLessThan) { - Matcher<const std::string&> m1 = Lt("Hello"); - EXPECT_TRUE(m1.Matches("Abc")); - EXPECT_FALSE(m1.Matches("Hello")); - EXPECT_FALSE(m1.Matches("Hello, world!")); -} - -// Tests that Lt(v) describes itself properly. -TEST(LtTest, CanDescribeSelf) { - Matcher<int> m = Lt(5); - EXPECT_EQ("is < 5", Describe(m)); -} - -// Tests that Ne(v) matches anything != v. -TEST(NeTest, ImplementsNotEqual) { - Matcher<int> m1 = Ne(0); - EXPECT_TRUE(m1.Matches(1)); - EXPECT_TRUE(m1.Matches(-1)); - EXPECT_FALSE(m1.Matches(0)); -} - -// Tests that Ne(v) describes itself properly. -TEST(NeTest, CanDescribeSelf) { - Matcher<int> m = Ne(5); - EXPECT_EQ("isn't equal to 5", Describe(m)); -} - -class MoveOnly { - public: - explicit MoveOnly(int i) : i_(i) {} - MoveOnly(const MoveOnly&) = delete; - MoveOnly(MoveOnly&&) = default; - MoveOnly& operator=(const MoveOnly&) = delete; - MoveOnly& operator=(MoveOnly&&) = default; - - bool operator==(const MoveOnly& other) const { return i_ == other.i_; } - bool operator!=(const MoveOnly& other) const { return i_ != other.i_; } - bool operator<(const MoveOnly& other) const { return i_ < other.i_; } - bool operator<=(const MoveOnly& other) const { return i_ <= other.i_; } - bool operator>(const MoveOnly& other) const { return i_ > other.i_; } - bool operator>=(const MoveOnly& other) const { return i_ >= other.i_; } - - private: - int i_; -}; - -struct MoveHelper { - MOCK_METHOD1(Call, void(MoveOnly)); -}; - -// Disable this test in VS 2015 (version 14), where it fails when SEH is enabled -#if defined(_MSC_VER) && (_MSC_VER < 1910) -TEST(ComparisonBaseTest, DISABLED_WorksWithMoveOnly) { -#else -TEST(ComparisonBaseTest, WorksWithMoveOnly) { -#endif - MoveOnly m{0}; - MoveHelper helper; - - EXPECT_CALL(helper, Call(Eq(ByRef(m)))); - helper.Call(MoveOnly(0)); - EXPECT_CALL(helper, Call(Ne(ByRef(m)))); - helper.Call(MoveOnly(1)); - EXPECT_CALL(helper, Call(Le(ByRef(m)))); - helper.Call(MoveOnly(0)); - EXPECT_CALL(helper, Call(Lt(ByRef(m)))); - helper.Call(MoveOnly(-1)); - EXPECT_CALL(helper, Call(Ge(ByRef(m)))); - helper.Call(MoveOnly(0)); - EXPECT_CALL(helper, Call(Gt(ByRef(m)))); - helper.Call(MoveOnly(1)); -} - -// Tests that IsNull() matches any NULL pointer of any type. -TEST(IsNullTest, MatchesNullPointer) { - Matcher<int*> m1 = IsNull(); - int* p1 = nullptr; - int n = 0; - EXPECT_TRUE(m1.Matches(p1)); - EXPECT_FALSE(m1.Matches(&n)); - - Matcher<const char*> m2 = IsNull(); - const char* p2 = nullptr; - EXPECT_TRUE(m2.Matches(p2)); - EXPECT_FALSE(m2.Matches("hi")); - - Matcher<void*> m3 = IsNull(); - void* p3 = nullptr; - EXPECT_TRUE(m3.Matches(p3)); - EXPECT_FALSE(m3.Matches(reinterpret_cast<void*>(0xbeef))); -} - -TEST(IsNullTest, StdFunction) { - const Matcher<std::function<void()>> m = IsNull(); - - EXPECT_TRUE(m.Matches(std::function<void()>())); - EXPECT_FALSE(m.Matches([]{})); -} - -// Tests that IsNull() describes itself properly. -TEST(IsNullTest, CanDescribeSelf) { - Matcher<int*> m = IsNull(); - EXPECT_EQ("is NULL", Describe(m)); - EXPECT_EQ("isn't NULL", DescribeNegation(m)); -} - -// Tests that NotNull() matches any non-NULL pointer of any type. -TEST(NotNullTest, MatchesNonNullPointer) { - Matcher<int*> m1 = NotNull(); - int* p1 = nullptr; - int n = 0; - EXPECT_FALSE(m1.Matches(p1)); - EXPECT_TRUE(m1.Matches(&n)); - - Matcher<const char*> m2 = NotNull(); - const char* p2 = nullptr; - EXPECT_FALSE(m2.Matches(p2)); - EXPECT_TRUE(m2.Matches("hi")); -} - -TEST(NotNullTest, LinkedPtr) { - const Matcher<std::shared_ptr<int>> m = NotNull(); - const std::shared_ptr<int> null_p; - const std::shared_ptr<int> non_null_p(new int); - - EXPECT_FALSE(m.Matches(null_p)); - EXPECT_TRUE(m.Matches(non_null_p)); -} - -TEST(NotNullTest, ReferenceToConstLinkedPtr) { - const Matcher<const std::shared_ptr<double>&> m = NotNull(); - const std::shared_ptr<double> null_p; - const std::shared_ptr<double> non_null_p(new double); - - EXPECT_FALSE(m.Matches(null_p)); - EXPECT_TRUE(m.Matches(non_null_p)); -} - -TEST(NotNullTest, StdFunction) { - const Matcher<std::function<void()>> m = NotNull(); - - EXPECT_TRUE(m.Matches([]{})); - EXPECT_FALSE(m.Matches(std::function<void()>())); -} - -// Tests that NotNull() describes itself properly. -TEST(NotNullTest, CanDescribeSelf) { - Matcher<int*> m = NotNull(); - EXPECT_EQ("isn't NULL", Describe(m)); -} - -// Tests that Ref(variable) matches an argument that references -// 'variable'. -TEST(RefTest, MatchesSameVariable) { - int a = 0; - int b = 0; - Matcher<int&> m = Ref(a); - EXPECT_TRUE(m.Matches(a)); - EXPECT_FALSE(m.Matches(b)); -} - -// Tests that Ref(variable) describes itself properly. -TEST(RefTest, CanDescribeSelf) { - int n = 5; - Matcher<int&> m = Ref(n); - stringstream ss; - ss << "references the variable @" << &n << " 5"; - EXPECT_EQ(ss.str(), Describe(m)); -} - -// Test that Ref(non_const_varialbe) can be used as a matcher for a -// const reference. -TEST(RefTest, CanBeUsedAsMatcherForConstReference) { - int a = 0; - int b = 0; - Matcher<const int&> m = Ref(a); - EXPECT_TRUE(m.Matches(a)); - EXPECT_FALSE(m.Matches(b)); -} - -// Tests that Ref(variable) is covariant, i.e. Ref(derived) can be -// used wherever Ref(base) can be used (Ref(derived) is a sub-type -// of Ref(base), but not vice versa. - -TEST(RefTest, IsCovariant) { - Base base, base2; - Derived derived; - Matcher<const Base&> m1 = Ref(base); - EXPECT_TRUE(m1.Matches(base)); - EXPECT_FALSE(m1.Matches(base2)); - EXPECT_FALSE(m1.Matches(derived)); - - m1 = Ref(derived); - EXPECT_TRUE(m1.Matches(derived)); - EXPECT_FALSE(m1.Matches(base)); - EXPECT_FALSE(m1.Matches(base2)); -} - -TEST(RefTest, ExplainsResult) { - int n = 0; - EXPECT_THAT(Explain(Matcher<const int&>(Ref(n)), n), - StartsWith("which is located @")); - - int m = 0; - EXPECT_THAT(Explain(Matcher<const int&>(Ref(n)), m), - StartsWith("which is located @")); -} - -// Tests string comparison matchers. - -template <typename T = std::string> -std::string FromStringLike(internal::StringLike<T> str) { - return std::string(str); -} - -TEST(StringLike, TestConversions) { - EXPECT_EQ("foo", FromStringLike("foo")); - EXPECT_EQ("foo", FromStringLike(std::string("foo"))); -#if GTEST_INTERNAL_HAS_STRING_VIEW - EXPECT_EQ("foo", FromStringLike(internal::StringView("foo"))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW - - // Non deducible types. - EXPECT_EQ("", FromStringLike({})); - EXPECT_EQ("foo", FromStringLike({'f', 'o', 'o'})); - const char buf[] = "foo"; - EXPECT_EQ("foo", FromStringLike({buf, buf + 3})); -} - -TEST(StrEqTest, MatchesEqualString) { - Matcher<const char*> m = StrEq(std::string("Hello")); - EXPECT_TRUE(m.Matches("Hello")); - EXPECT_FALSE(m.Matches("hello")); - EXPECT_FALSE(m.Matches(nullptr)); - - Matcher<const std::string&> m2 = StrEq("Hello"); - EXPECT_TRUE(m2.Matches("Hello")); - EXPECT_FALSE(m2.Matches("Hi")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView&> m3 = - StrEq(internal::StringView("Hello")); - EXPECT_TRUE(m3.Matches(internal::StringView("Hello"))); - EXPECT_FALSE(m3.Matches(internal::StringView("hello"))); - EXPECT_FALSE(m3.Matches(internal::StringView())); - - Matcher<const internal::StringView&> m_empty = StrEq(""); - EXPECT_TRUE(m_empty.Matches(internal::StringView(""))); - EXPECT_TRUE(m_empty.Matches(internal::StringView())); - EXPECT_FALSE(m_empty.Matches(internal::StringView("hello"))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(StrEqTest, CanDescribeSelf) { - Matcher<std::string> m = StrEq("Hi-\'\"?\\\a\b\f\n\r\t\v\xD3"); - EXPECT_EQ("is equal to \"Hi-\'\\\"?\\\\\\a\\b\\f\\n\\r\\t\\v\\xD3\"", - Describe(m)); - - std::string str("01204500800"); - str[3] = '\0'; - Matcher<std::string> m2 = StrEq(str); - EXPECT_EQ("is equal to \"012\\04500800\"", Describe(m2)); - str[0] = str[6] = str[7] = str[9] = str[10] = '\0'; - Matcher<std::string> m3 = StrEq(str); - EXPECT_EQ("is equal to \"\\012\\045\\0\\08\\0\\0\"", Describe(m3)); -} - -TEST(StrNeTest, MatchesUnequalString) { - Matcher<const char*> m = StrNe("Hello"); - EXPECT_TRUE(m.Matches("")); - EXPECT_TRUE(m.Matches(nullptr)); - EXPECT_FALSE(m.Matches("Hello")); - - Matcher<std::string> m2 = StrNe(std::string("Hello")); - EXPECT_TRUE(m2.Matches("hello")); - EXPECT_FALSE(m2.Matches("Hello")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView> m3 = StrNe(internal::StringView("Hello")); - EXPECT_TRUE(m3.Matches(internal::StringView(""))); - EXPECT_TRUE(m3.Matches(internal::StringView())); - EXPECT_FALSE(m3.Matches(internal::StringView("Hello"))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(StrNeTest, CanDescribeSelf) { - Matcher<const char*> m = StrNe("Hi"); - EXPECT_EQ("isn't equal to \"Hi\"", Describe(m)); -} - -TEST(StrCaseEqTest, MatchesEqualStringIgnoringCase) { - Matcher<const char*> m = StrCaseEq(std::string("Hello")); - EXPECT_TRUE(m.Matches("Hello")); - EXPECT_TRUE(m.Matches("hello")); - EXPECT_FALSE(m.Matches("Hi")); - EXPECT_FALSE(m.Matches(nullptr)); - - Matcher<const std::string&> m2 = StrCaseEq("Hello"); - EXPECT_TRUE(m2.Matches("hello")); - EXPECT_FALSE(m2.Matches("Hi")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView&> m3 = - StrCaseEq(internal::StringView("Hello")); - EXPECT_TRUE(m3.Matches(internal::StringView("Hello"))); - EXPECT_TRUE(m3.Matches(internal::StringView("hello"))); - EXPECT_FALSE(m3.Matches(internal::StringView("Hi"))); - EXPECT_FALSE(m3.Matches(internal::StringView())); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(StrCaseEqTest, MatchesEqualStringWith0IgnoringCase) { - std::string str1("oabocdooeoo"); - std::string str2("OABOCDOOEOO"); - Matcher<const std::string&> m0 = StrCaseEq(str1); - EXPECT_FALSE(m0.Matches(str2 + std::string(1, '\0'))); - - str1[3] = str2[3] = '\0'; - Matcher<const std::string&> m1 = StrCaseEq(str1); - EXPECT_TRUE(m1.Matches(str2)); - - str1[0] = str1[6] = str1[7] = str1[10] = '\0'; - str2[0] = str2[6] = str2[7] = str2[10] = '\0'; - Matcher<const std::string&> m2 = StrCaseEq(str1); - str1[9] = str2[9] = '\0'; - EXPECT_FALSE(m2.Matches(str2)); - - Matcher<const std::string&> m3 = StrCaseEq(str1); - EXPECT_TRUE(m3.Matches(str2)); - - EXPECT_FALSE(m3.Matches(str2 + "x")); - str2.append(1, '\0'); - EXPECT_FALSE(m3.Matches(str2)); - EXPECT_FALSE(m3.Matches(std::string(str2, 0, 9))); -} - -TEST(StrCaseEqTest, CanDescribeSelf) { - Matcher<std::string> m = StrCaseEq("Hi"); - EXPECT_EQ("is equal to (ignoring case) \"Hi\"", Describe(m)); -} - -TEST(StrCaseNeTest, MatchesUnequalStringIgnoringCase) { - Matcher<const char*> m = StrCaseNe("Hello"); - EXPECT_TRUE(m.Matches("Hi")); - EXPECT_TRUE(m.Matches(nullptr)); - EXPECT_FALSE(m.Matches("Hello")); - EXPECT_FALSE(m.Matches("hello")); - - Matcher<std::string> m2 = StrCaseNe(std::string("Hello")); - EXPECT_TRUE(m2.Matches("")); - EXPECT_FALSE(m2.Matches("Hello")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView> m3 = - StrCaseNe(internal::StringView("Hello")); - EXPECT_TRUE(m3.Matches(internal::StringView("Hi"))); - EXPECT_TRUE(m3.Matches(internal::StringView())); - EXPECT_FALSE(m3.Matches(internal::StringView("Hello"))); - EXPECT_FALSE(m3.Matches(internal::StringView("hello"))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(StrCaseNeTest, CanDescribeSelf) { - Matcher<const char*> m = StrCaseNe("Hi"); - EXPECT_EQ("isn't equal to (ignoring case) \"Hi\"", Describe(m)); -} - -// Tests that HasSubstr() works for matching string-typed values. -TEST(HasSubstrTest, WorksForStringClasses) { - const Matcher<std::string> m1 = HasSubstr("foo"); - EXPECT_TRUE(m1.Matches(std::string("I love food."))); - EXPECT_FALSE(m1.Matches(std::string("tofo"))); - - const Matcher<const std::string&> m2 = HasSubstr("foo"); - EXPECT_TRUE(m2.Matches(std::string("I love food."))); - EXPECT_FALSE(m2.Matches(std::string("tofo"))); - - const Matcher<std::string> m_empty = HasSubstr(""); - EXPECT_TRUE(m_empty.Matches(std::string())); - EXPECT_TRUE(m_empty.Matches(std::string("not empty"))); -} - -// Tests that HasSubstr() works for matching C-string-typed values. -TEST(HasSubstrTest, WorksForCStrings) { - const Matcher<char*> m1 = HasSubstr("foo"); - EXPECT_TRUE(m1.Matches(const_cast<char*>("I love food."))); - EXPECT_FALSE(m1.Matches(const_cast<char*>("tofo"))); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const char*> m2 = HasSubstr("foo"); - EXPECT_TRUE(m2.Matches("I love food.")); - EXPECT_FALSE(m2.Matches("tofo")); - EXPECT_FALSE(m2.Matches(nullptr)); - - const Matcher<const char*> m_empty = HasSubstr(""); - EXPECT_TRUE(m_empty.Matches("not empty")); - EXPECT_TRUE(m_empty.Matches("")); - EXPECT_FALSE(m_empty.Matches(nullptr)); -} - -#if GTEST_INTERNAL_HAS_STRING_VIEW -// Tests that HasSubstr() works for matching StringView-typed values. -TEST(HasSubstrTest, WorksForStringViewClasses) { - const Matcher<internal::StringView> m1 = - HasSubstr(internal::StringView("foo")); - EXPECT_TRUE(m1.Matches(internal::StringView("I love food."))); - EXPECT_FALSE(m1.Matches(internal::StringView("tofo"))); - EXPECT_FALSE(m1.Matches(internal::StringView())); - - const Matcher<const internal::StringView&> m2 = HasSubstr("foo"); - EXPECT_TRUE(m2.Matches(internal::StringView("I love food."))); - EXPECT_FALSE(m2.Matches(internal::StringView("tofo"))); - EXPECT_FALSE(m2.Matches(internal::StringView())); - - const Matcher<const internal::StringView&> m3 = HasSubstr(""); - EXPECT_TRUE(m3.Matches(internal::StringView("foo"))); - EXPECT_TRUE(m3.Matches(internal::StringView(""))); - EXPECT_TRUE(m3.Matches(internal::StringView())); -} -#endif // GTEST_INTERNAL_HAS_STRING_VIEW - -// Tests that HasSubstr(s) describes itself properly. -TEST(HasSubstrTest, CanDescribeSelf) { - Matcher<std::string> m = HasSubstr("foo\n\""); - EXPECT_EQ("has substring \"foo\\n\\\"\"", Describe(m)); -} - -TEST(KeyTest, CanDescribeSelf) { - Matcher<const pair<std::string, int>&> m = Key("foo"); - EXPECT_EQ("has a key that is equal to \"foo\"", Describe(m)); - EXPECT_EQ("doesn't have a key that is equal to \"foo\"", DescribeNegation(m)); -} - -TEST(KeyTest, ExplainsResult) { - Matcher<pair<int, bool> > m = Key(GreaterThan(10)); - EXPECT_EQ("whose first field is a value which is 5 less than 10", - Explain(m, make_pair(5, true))); - EXPECT_EQ("whose first field is a value which is 5 more than 10", - Explain(m, make_pair(15, true))); -} - -TEST(KeyTest, MatchesCorrectly) { - pair<int, std::string> p(25, "foo"); - EXPECT_THAT(p, Key(25)); - EXPECT_THAT(p, Not(Key(42))); - EXPECT_THAT(p, Key(Ge(20))); - EXPECT_THAT(p, Not(Key(Lt(25)))); -} - -TEST(KeyTest, WorksWithMoveOnly) { - pair<std::unique_ptr<int>, std::unique_ptr<int>> p; - EXPECT_THAT(p, Key(Eq(nullptr))); -} - -template <size_t I> -struct Tag {}; - -struct PairWithGet { - int member_1; - std::string member_2; - using first_type = int; - using second_type = std::string; - - const int& GetImpl(Tag<0>) const { return member_1; } - const std::string& GetImpl(Tag<1>) const { return member_2; } -}; -template <size_t I> -auto get(const PairWithGet& value) -> decltype(value.GetImpl(Tag<I>())) { - return value.GetImpl(Tag<I>()); -} -TEST(PairTest, MatchesPairWithGetCorrectly) { - PairWithGet p{25, "foo"}; - EXPECT_THAT(p, Key(25)); - EXPECT_THAT(p, Not(Key(42))); - EXPECT_THAT(p, Key(Ge(20))); - EXPECT_THAT(p, Not(Key(Lt(25)))); - - std::vector<PairWithGet> v = {{11, "Foo"}, {29, "gMockIsBestMock"}}; - EXPECT_THAT(v, Contains(Key(29))); -} - -TEST(KeyTest, SafelyCastsInnerMatcher) { - Matcher<int> is_positive = Gt(0); - Matcher<int> is_negative = Lt(0); - pair<char, bool> p('a', true); - EXPECT_THAT(p, Key(is_positive)); - EXPECT_THAT(p, Not(Key(is_negative))); -} - -TEST(KeyTest, InsideContainsUsingMap) { - map<int, char> container; - container.insert(make_pair(1, 'a')); - container.insert(make_pair(2, 'b')); - container.insert(make_pair(4, 'c')); - EXPECT_THAT(container, Contains(Key(1))); - EXPECT_THAT(container, Not(Contains(Key(3)))); -} - -TEST(KeyTest, InsideContainsUsingMultimap) { - multimap<int, char> container; - container.insert(make_pair(1, 'a')); - container.insert(make_pair(2, 'b')); - container.insert(make_pair(4, 'c')); - - EXPECT_THAT(container, Not(Contains(Key(25)))); - container.insert(make_pair(25, 'd')); - EXPECT_THAT(container, Contains(Key(25))); - container.insert(make_pair(25, 'e')); - EXPECT_THAT(container, Contains(Key(25))); - - EXPECT_THAT(container, Contains(Key(1))); - EXPECT_THAT(container, Not(Contains(Key(3)))); -} - -TEST(PairTest, Typing) { - // Test verifies the following type conversions can be compiled. - Matcher<const pair<const char*, int>&> m1 = Pair("foo", 42); - Matcher<const pair<const char*, int> > m2 = Pair("foo", 42); - Matcher<pair<const char*, int> > m3 = Pair("foo", 42); - - Matcher<pair<int, const std::string> > m4 = Pair(25, "42"); - Matcher<pair<const std::string, int> > m5 = Pair("25", 42); -} - -TEST(PairTest, CanDescribeSelf) { - Matcher<const pair<std::string, int>&> m1 = Pair("foo", 42); - EXPECT_EQ("has a first field that is equal to \"foo\"" - ", and has a second field that is equal to 42", - Describe(m1)); - EXPECT_EQ("has a first field that isn't equal to \"foo\"" - ", or has a second field that isn't equal to 42", - DescribeNegation(m1)); - // Double and triple negation (1 or 2 times not and description of negation). - Matcher<const pair<int, int>&> m2 = Not(Pair(Not(13), 42)); - EXPECT_EQ("has a first field that isn't equal to 13" - ", and has a second field that is equal to 42", - DescribeNegation(m2)); -} - -TEST(PairTest, CanExplainMatchResultTo) { - // If neither field matches, Pair() should explain about the first - // field. - const Matcher<pair<int, int> > m = Pair(GreaterThan(0), GreaterThan(0)); - EXPECT_EQ("whose first field does not match, which is 1 less than 0", - Explain(m, make_pair(-1, -2))); - - // If the first field matches but the second doesn't, Pair() should - // explain about the second field. - EXPECT_EQ("whose second field does not match, which is 2 less than 0", - Explain(m, make_pair(1, -2))); - - // If the first field doesn't match but the second does, Pair() - // should explain about the first field. - EXPECT_EQ("whose first field does not match, which is 1 less than 0", - Explain(m, make_pair(-1, 2))); - - // If both fields match, Pair() should explain about them both. - EXPECT_EQ("whose both fields match, where the first field is a value " - "which is 1 more than 0, and the second field is a value " - "which is 2 more than 0", - Explain(m, make_pair(1, 2))); - - // If only the first match has an explanation, only this explanation should - // be printed. - const Matcher<pair<int, int> > explain_first = Pair(GreaterThan(0), 0); - EXPECT_EQ("whose both fields match, where the first field is a value " - "which is 1 more than 0", - Explain(explain_first, make_pair(1, 0))); - - // If only the second match has an explanation, only this explanation should - // be printed. - const Matcher<pair<int, int> > explain_second = Pair(0, GreaterThan(0)); - EXPECT_EQ("whose both fields match, where the second field is a value " - "which is 1 more than 0", - Explain(explain_second, make_pair(0, 1))); -} - -TEST(PairTest, MatchesCorrectly) { - pair<int, std::string> p(25, "foo"); - - // Both fields match. - EXPECT_THAT(p, Pair(25, "foo")); - EXPECT_THAT(p, Pair(Ge(20), HasSubstr("o"))); - - // 'first' doesnt' match, but 'second' matches. - EXPECT_THAT(p, Not(Pair(42, "foo"))); - EXPECT_THAT(p, Not(Pair(Lt(25), "foo"))); - - // 'first' matches, but 'second' doesn't match. - EXPECT_THAT(p, Not(Pair(25, "bar"))); - EXPECT_THAT(p, Not(Pair(25, Not("foo")))); - - // Neither field matches. - EXPECT_THAT(p, Not(Pair(13, "bar"))); - EXPECT_THAT(p, Not(Pair(Lt(13), HasSubstr("a")))); -} - -TEST(PairTest, WorksWithMoveOnly) { - pair<std::unique_ptr<int>, std::unique_ptr<int>> p; - p.second.reset(new int(7)); - EXPECT_THAT(p, Pair(Eq(nullptr), Ne(nullptr))); -} - -TEST(PairTest, SafelyCastsInnerMatchers) { - Matcher<int> is_positive = Gt(0); - Matcher<int> is_negative = Lt(0); - pair<char, bool> p('a', true); - EXPECT_THAT(p, Pair(is_positive, _)); - EXPECT_THAT(p, Not(Pair(is_negative, _))); - EXPECT_THAT(p, Pair(_, is_positive)); - EXPECT_THAT(p, Not(Pair(_, is_negative))); -} - -TEST(PairTest, InsideContainsUsingMap) { - map<int, char> container; - container.insert(make_pair(1, 'a')); - container.insert(make_pair(2, 'b')); - container.insert(make_pair(4, 'c')); - EXPECT_THAT(container, Contains(Pair(1, 'a'))); - EXPECT_THAT(container, Contains(Pair(1, _))); - EXPECT_THAT(container, Contains(Pair(_, 'a'))); - EXPECT_THAT(container, Not(Contains(Pair(3, _)))); -} - -TEST(FieldsAreTest, MatchesCorrectly) { - std::tuple<int, std::string, double> p(25, "foo", .5); - - // All fields match. - EXPECT_THAT(p, FieldsAre(25, "foo", .5)); - EXPECT_THAT(p, FieldsAre(Ge(20), HasSubstr("o"), DoubleEq(.5))); - - // Some don't match. - EXPECT_THAT(p, Not(FieldsAre(26, "foo", .5))); - EXPECT_THAT(p, Not(FieldsAre(25, "fo", .5))); - EXPECT_THAT(p, Not(FieldsAre(25, "foo", .6))); -} - -TEST(FieldsAreTest, CanDescribeSelf) { - Matcher<const pair<std::string, int>&> m1 = FieldsAre("foo", 42); - EXPECT_EQ( - "has field #0 that is equal to \"foo\"" - ", and has field #1 that is equal to 42", - Describe(m1)); - EXPECT_EQ( - "has field #0 that isn't equal to \"foo\"" - ", or has field #1 that isn't equal to 42", - DescribeNegation(m1)); -} - -TEST(FieldsAreTest, CanExplainMatchResultTo) { - // The first one that fails is the one that gives the error. - Matcher<std::tuple<int, int, int>> m = - FieldsAre(GreaterThan(0), GreaterThan(0), GreaterThan(0)); - - EXPECT_EQ("whose field #0 does not match, which is 1 less than 0", - Explain(m, std::make_tuple(-1, -2, -3))); - EXPECT_EQ("whose field #1 does not match, which is 2 less than 0", - Explain(m, std::make_tuple(1, -2, -3))); - EXPECT_EQ("whose field #2 does not match, which is 3 less than 0", - Explain(m, std::make_tuple(1, 2, -3))); - - // If they all match, we get a long explanation of success. - EXPECT_EQ( - "whose all elements match, " - "where field #0 is a value which is 1 more than 0" - ", and field #1 is a value which is 2 more than 0" - ", and field #2 is a value which is 3 more than 0", - Explain(m, std::make_tuple(1, 2, 3))); - - // Only print those that have an explanation. - m = FieldsAre(GreaterThan(0), 0, GreaterThan(0)); - EXPECT_EQ( - "whose all elements match, " - "where field #0 is a value which is 1 more than 0" - ", and field #2 is a value which is 3 more than 0", - Explain(m, std::make_tuple(1, 0, 3))); - - // If only one has an explanation, then print that one. - m = FieldsAre(0, GreaterThan(0), 0); - EXPECT_EQ( - "whose all elements match, " - "where field #1 is a value which is 1 more than 0", - Explain(m, std::make_tuple(0, 1, 0))); -} - -#if defined(__cpp_structured_bindings) && __cpp_structured_bindings >= 201606 -TEST(FieldsAreTest, StructuredBindings) { - // testing::FieldsAre can also match aggregates and such with C++17 and up. - struct MyType { - int i; - std::string str; - }; - EXPECT_THAT((MyType{17, "foo"}), FieldsAre(Eq(17), HasSubstr("oo"))); - - // Test all the supported arities. - struct MyVarType1 { - int a; - }; - EXPECT_THAT(MyVarType1{}, FieldsAre(0)); - struct MyVarType2 { - int a, b; - }; - EXPECT_THAT(MyVarType2{}, FieldsAre(0, 0)); - struct MyVarType3 { - int a, b, c; - }; - EXPECT_THAT(MyVarType3{}, FieldsAre(0, 0, 0)); - struct MyVarType4 { - int a, b, c, d; - }; - EXPECT_THAT(MyVarType4{}, FieldsAre(0, 0, 0, 0)); - struct MyVarType5 { - int a, b, c, d, e; - }; - EXPECT_THAT(MyVarType5{}, FieldsAre(0, 0, 0, 0, 0)); - struct MyVarType6 { - int a, b, c, d, e, f; - }; - EXPECT_THAT(MyVarType6{}, FieldsAre(0, 0, 0, 0, 0, 0)); - struct MyVarType7 { - int a, b, c, d, e, f, g; - }; - EXPECT_THAT(MyVarType7{}, FieldsAre(0, 0, 0, 0, 0, 0, 0)); - struct MyVarType8 { - int a, b, c, d, e, f, g, h; - }; - EXPECT_THAT(MyVarType8{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType9 { - int a, b, c, d, e, f, g, h, i; - }; - EXPECT_THAT(MyVarType9{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType10 { - int a, b, c, d, e, f, g, h, i, j; - }; - EXPECT_THAT(MyVarType10{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType11 { - int a, b, c, d, e, f, g, h, i, j, k; - }; - EXPECT_THAT(MyVarType11{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType12 { - int a, b, c, d, e, f, g, h, i, j, k, l; - }; - EXPECT_THAT(MyVarType12{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType13 { - int a, b, c, d, e, f, g, h, i, j, k, l, m; - }; - EXPECT_THAT(MyVarType13{}, FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType14 { - int a, b, c, d, e, f, g, h, i, j, k, l, m, n; - }; - EXPECT_THAT(MyVarType14{}, - FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType15 { - int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o; - }; - EXPECT_THAT(MyVarType15{}, - FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); - struct MyVarType16 { - int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p; - }; - EXPECT_THAT(MyVarType16{}, - FieldsAre(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)); -} -#endif - -TEST(ContainsTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(Contains(Pointee(2)))); - helper.Call(MakeUniquePtrs({1, 2})); -} - -TEST(PairTest, UseGetInsteadOfMembers) { - PairWithGet pair{7, "ABC"}; - EXPECT_THAT(pair, Pair(7, "ABC")); - EXPECT_THAT(pair, Pair(Ge(7), HasSubstr("AB"))); - EXPECT_THAT(pair, Not(Pair(Lt(7), "ABC"))); - - std::vector<PairWithGet> v = {{11, "Foo"}, {29, "gMockIsBestMock"}}; - EXPECT_THAT(v, - ElementsAre(Pair(11, std::string("Foo")), Pair(Ge(10), Not("")))); -} - -// Tests StartsWith(s). - -TEST(StartsWithTest, MatchesStringWithGivenPrefix) { - const Matcher<const char*> m1 = StartsWith(std::string("")); - EXPECT_TRUE(m1.Matches("Hi")); - EXPECT_TRUE(m1.Matches("")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const std::string&> m2 = StartsWith("Hi"); - EXPECT_TRUE(m2.Matches("Hi")); - EXPECT_TRUE(m2.Matches("Hi Hi!")); - EXPECT_TRUE(m2.Matches("High")); - EXPECT_FALSE(m2.Matches("H")); - EXPECT_FALSE(m2.Matches(" Hi")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - const Matcher<internal::StringView> m_empty = - StartsWith(internal::StringView("")); - EXPECT_TRUE(m_empty.Matches(internal::StringView())); - EXPECT_TRUE(m_empty.Matches(internal::StringView(""))); - EXPECT_TRUE(m_empty.Matches(internal::StringView("not empty"))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(StartsWithTest, CanDescribeSelf) { - Matcher<const std::string> m = StartsWith("Hi"); - EXPECT_EQ("starts with \"Hi\"", Describe(m)); -} - -// Tests EndsWith(s). - -TEST(EndsWithTest, MatchesStringWithGivenSuffix) { - const Matcher<const char*> m1 = EndsWith(""); - EXPECT_TRUE(m1.Matches("Hi")); - EXPECT_TRUE(m1.Matches("")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const std::string&> m2 = EndsWith(std::string("Hi")); - EXPECT_TRUE(m2.Matches("Hi")); - EXPECT_TRUE(m2.Matches("Wow Hi Hi")); - EXPECT_TRUE(m2.Matches("Super Hi")); - EXPECT_FALSE(m2.Matches("i")); - EXPECT_FALSE(m2.Matches("Hi ")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - const Matcher<const internal::StringView&> m4 = - EndsWith(internal::StringView("")); - EXPECT_TRUE(m4.Matches("Hi")); - EXPECT_TRUE(m4.Matches("")); - EXPECT_TRUE(m4.Matches(internal::StringView())); - EXPECT_TRUE(m4.Matches(internal::StringView(""))); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(EndsWithTest, CanDescribeSelf) { - Matcher<const std::string> m = EndsWith("Hi"); - EXPECT_EQ("ends with \"Hi\"", Describe(m)); -} - -// Tests MatchesRegex(). - -TEST(MatchesRegexTest, MatchesStringMatchingGivenRegex) { - const Matcher<const char*> m1 = MatchesRegex("a.*z"); - EXPECT_TRUE(m1.Matches("az")); - EXPECT_TRUE(m1.Matches("abcz")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const std::string&> m2 = MatchesRegex(new RE("a.*z")); - EXPECT_TRUE(m2.Matches("azbz")); - EXPECT_FALSE(m2.Matches("az1")); - EXPECT_FALSE(m2.Matches("1az")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - const Matcher<const internal::StringView&> m3 = MatchesRegex("a.*z"); - EXPECT_TRUE(m3.Matches(internal::StringView("az"))); - EXPECT_TRUE(m3.Matches(internal::StringView("abcz"))); - EXPECT_FALSE(m3.Matches(internal::StringView("1az"))); - EXPECT_FALSE(m3.Matches(internal::StringView())); - const Matcher<const internal::StringView&> m4 = - MatchesRegex(internal::StringView("")); - EXPECT_TRUE(m4.Matches(internal::StringView(""))); - EXPECT_TRUE(m4.Matches(internal::StringView())); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(MatchesRegexTest, CanDescribeSelf) { - Matcher<const std::string> m1 = MatchesRegex(std::string("Hi.*")); - EXPECT_EQ("matches regular expression \"Hi.*\"", Describe(m1)); - - Matcher<const char*> m2 = MatchesRegex(new RE("a.*")); - EXPECT_EQ("matches regular expression \"a.*\"", Describe(m2)); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView> m3 = MatchesRegex(new RE("0.*")); - EXPECT_EQ("matches regular expression \"0.*\"", Describe(m3)); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -// Tests ContainsRegex(). - -TEST(ContainsRegexTest, MatchesStringContainingGivenRegex) { - const Matcher<const char*> m1 = ContainsRegex(std::string("a.*z")); - EXPECT_TRUE(m1.Matches("az")); - EXPECT_TRUE(m1.Matches("0abcz1")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const std::string&> m2 = ContainsRegex(new RE("a.*z")); - EXPECT_TRUE(m2.Matches("azbz")); - EXPECT_TRUE(m2.Matches("az1")); - EXPECT_FALSE(m2.Matches("1a")); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - const Matcher<const internal::StringView&> m3 = - ContainsRegex(new RE("a.*z")); - EXPECT_TRUE(m3.Matches(internal::StringView("azbz"))); - EXPECT_TRUE(m3.Matches(internal::StringView("az1"))); - EXPECT_FALSE(m3.Matches(internal::StringView("1a"))); - EXPECT_FALSE(m3.Matches(internal::StringView())); - const Matcher<const internal::StringView&> m4 = - ContainsRegex(internal::StringView("")); - EXPECT_TRUE(m4.Matches(internal::StringView(""))); - EXPECT_TRUE(m4.Matches(internal::StringView())); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -TEST(ContainsRegexTest, CanDescribeSelf) { - Matcher<const std::string> m1 = ContainsRegex("Hi.*"); - EXPECT_EQ("contains regular expression \"Hi.*\"", Describe(m1)); - - Matcher<const char*> m2 = ContainsRegex(new RE("a.*")); - EXPECT_EQ("contains regular expression \"a.*\"", Describe(m2)); - -#if GTEST_INTERNAL_HAS_STRING_VIEW - Matcher<const internal::StringView> m3 = ContainsRegex(new RE("0.*")); - EXPECT_EQ("contains regular expression \"0.*\"", Describe(m3)); -#endif // GTEST_INTERNAL_HAS_STRING_VIEW -} - -// Tests for wide strings. -#if GTEST_HAS_STD_WSTRING -TEST(StdWideStrEqTest, MatchesEqual) { - Matcher<const wchar_t*> m = StrEq(::std::wstring(L"Hello")); - EXPECT_TRUE(m.Matches(L"Hello")); - EXPECT_FALSE(m.Matches(L"hello")); - EXPECT_FALSE(m.Matches(nullptr)); - - Matcher<const ::std::wstring&> m2 = StrEq(L"Hello"); - EXPECT_TRUE(m2.Matches(L"Hello")); - EXPECT_FALSE(m2.Matches(L"Hi")); - - Matcher<const ::std::wstring&> m3 = StrEq(L"\xD3\x576\x8D3\xC74D"); - EXPECT_TRUE(m3.Matches(L"\xD3\x576\x8D3\xC74D")); - EXPECT_FALSE(m3.Matches(L"\xD3\x576\x8D3\xC74E")); - - ::std::wstring str(L"01204500800"); - str[3] = L'\0'; - Matcher<const ::std::wstring&> m4 = StrEq(str); - EXPECT_TRUE(m4.Matches(str)); - str[0] = str[6] = str[7] = str[9] = str[10] = L'\0'; - Matcher<const ::std::wstring&> m5 = StrEq(str); - EXPECT_TRUE(m5.Matches(str)); -} - -TEST(StdWideStrEqTest, CanDescribeSelf) { - Matcher< ::std::wstring> m = StrEq(L"Hi-\'\"?\\\a\b\f\n\r\t\v"); - EXPECT_EQ("is equal to L\"Hi-\'\\\"?\\\\\\a\\b\\f\\n\\r\\t\\v\"", - Describe(m)); - - Matcher< ::std::wstring> m2 = StrEq(L"\xD3\x576\x8D3\xC74D"); - EXPECT_EQ("is equal to L\"\\xD3\\x576\\x8D3\\xC74D\"", - Describe(m2)); - - ::std::wstring str(L"01204500800"); - str[3] = L'\0'; - Matcher<const ::std::wstring&> m4 = StrEq(str); - EXPECT_EQ("is equal to L\"012\\04500800\"", Describe(m4)); - str[0] = str[6] = str[7] = str[9] = str[10] = L'\0'; - Matcher<const ::std::wstring&> m5 = StrEq(str); - EXPECT_EQ("is equal to L\"\\012\\045\\0\\08\\0\\0\"", Describe(m5)); -} - -TEST(StdWideStrNeTest, MatchesUnequalString) { - Matcher<const wchar_t*> m = StrNe(L"Hello"); - EXPECT_TRUE(m.Matches(L"")); - EXPECT_TRUE(m.Matches(nullptr)); - EXPECT_FALSE(m.Matches(L"Hello")); - - Matcher< ::std::wstring> m2 = StrNe(::std::wstring(L"Hello")); - EXPECT_TRUE(m2.Matches(L"hello")); - EXPECT_FALSE(m2.Matches(L"Hello")); -} - -TEST(StdWideStrNeTest, CanDescribeSelf) { - Matcher<const wchar_t*> m = StrNe(L"Hi"); - EXPECT_EQ("isn't equal to L\"Hi\"", Describe(m)); -} - -TEST(StdWideStrCaseEqTest, MatchesEqualStringIgnoringCase) { - Matcher<const wchar_t*> m = StrCaseEq(::std::wstring(L"Hello")); - EXPECT_TRUE(m.Matches(L"Hello")); - EXPECT_TRUE(m.Matches(L"hello")); - EXPECT_FALSE(m.Matches(L"Hi")); - EXPECT_FALSE(m.Matches(nullptr)); - - Matcher<const ::std::wstring&> m2 = StrCaseEq(L"Hello"); - EXPECT_TRUE(m2.Matches(L"hello")); - EXPECT_FALSE(m2.Matches(L"Hi")); -} - -TEST(StdWideStrCaseEqTest, MatchesEqualStringWith0IgnoringCase) { - ::std::wstring str1(L"oabocdooeoo"); - ::std::wstring str2(L"OABOCDOOEOO"); - Matcher<const ::std::wstring&> m0 = StrCaseEq(str1); - EXPECT_FALSE(m0.Matches(str2 + ::std::wstring(1, L'\0'))); - - str1[3] = str2[3] = L'\0'; - Matcher<const ::std::wstring&> m1 = StrCaseEq(str1); - EXPECT_TRUE(m1.Matches(str2)); - - str1[0] = str1[6] = str1[7] = str1[10] = L'\0'; - str2[0] = str2[6] = str2[7] = str2[10] = L'\0'; - Matcher<const ::std::wstring&> m2 = StrCaseEq(str1); - str1[9] = str2[9] = L'\0'; - EXPECT_FALSE(m2.Matches(str2)); - - Matcher<const ::std::wstring&> m3 = StrCaseEq(str1); - EXPECT_TRUE(m3.Matches(str2)); - - EXPECT_FALSE(m3.Matches(str2 + L"x")); - str2.append(1, L'\0'); - EXPECT_FALSE(m3.Matches(str2)); - EXPECT_FALSE(m3.Matches(::std::wstring(str2, 0, 9))); -} - -TEST(StdWideStrCaseEqTest, CanDescribeSelf) { - Matcher< ::std::wstring> m = StrCaseEq(L"Hi"); - EXPECT_EQ("is equal to (ignoring case) L\"Hi\"", Describe(m)); -} - -TEST(StdWideStrCaseNeTest, MatchesUnequalStringIgnoringCase) { - Matcher<const wchar_t*> m = StrCaseNe(L"Hello"); - EXPECT_TRUE(m.Matches(L"Hi")); - EXPECT_TRUE(m.Matches(nullptr)); - EXPECT_FALSE(m.Matches(L"Hello")); - EXPECT_FALSE(m.Matches(L"hello")); - - Matcher< ::std::wstring> m2 = StrCaseNe(::std::wstring(L"Hello")); - EXPECT_TRUE(m2.Matches(L"")); - EXPECT_FALSE(m2.Matches(L"Hello")); -} - -TEST(StdWideStrCaseNeTest, CanDescribeSelf) { - Matcher<const wchar_t*> m = StrCaseNe(L"Hi"); - EXPECT_EQ("isn't equal to (ignoring case) L\"Hi\"", Describe(m)); -} - -// Tests that HasSubstr() works for matching wstring-typed values. -TEST(StdWideHasSubstrTest, WorksForStringClasses) { - const Matcher< ::std::wstring> m1 = HasSubstr(L"foo"); - EXPECT_TRUE(m1.Matches(::std::wstring(L"I love food."))); - EXPECT_FALSE(m1.Matches(::std::wstring(L"tofo"))); - - const Matcher<const ::std::wstring&> m2 = HasSubstr(L"foo"); - EXPECT_TRUE(m2.Matches(::std::wstring(L"I love food."))); - EXPECT_FALSE(m2.Matches(::std::wstring(L"tofo"))); -} - -// Tests that HasSubstr() works for matching C-wide-string-typed values. -TEST(StdWideHasSubstrTest, WorksForCStrings) { - const Matcher<wchar_t*> m1 = HasSubstr(L"foo"); - EXPECT_TRUE(m1.Matches(const_cast<wchar_t*>(L"I love food."))); - EXPECT_FALSE(m1.Matches(const_cast<wchar_t*>(L"tofo"))); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const wchar_t*> m2 = HasSubstr(L"foo"); - EXPECT_TRUE(m2.Matches(L"I love food.")); - EXPECT_FALSE(m2.Matches(L"tofo")); - EXPECT_FALSE(m2.Matches(nullptr)); -} - -// Tests that HasSubstr(s) describes itself properly. -TEST(StdWideHasSubstrTest, CanDescribeSelf) { - Matcher< ::std::wstring> m = HasSubstr(L"foo\n\""); - EXPECT_EQ("has substring L\"foo\\n\\\"\"", Describe(m)); -} - -// Tests StartsWith(s). - -TEST(StdWideStartsWithTest, MatchesStringWithGivenPrefix) { - const Matcher<const wchar_t*> m1 = StartsWith(::std::wstring(L"")); - EXPECT_TRUE(m1.Matches(L"Hi")); - EXPECT_TRUE(m1.Matches(L"")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const ::std::wstring&> m2 = StartsWith(L"Hi"); - EXPECT_TRUE(m2.Matches(L"Hi")); - EXPECT_TRUE(m2.Matches(L"Hi Hi!")); - EXPECT_TRUE(m2.Matches(L"High")); - EXPECT_FALSE(m2.Matches(L"H")); - EXPECT_FALSE(m2.Matches(L" Hi")); -} - -TEST(StdWideStartsWithTest, CanDescribeSelf) { - Matcher<const ::std::wstring> m = StartsWith(L"Hi"); - EXPECT_EQ("starts with L\"Hi\"", Describe(m)); -} - -// Tests EndsWith(s). - -TEST(StdWideEndsWithTest, MatchesStringWithGivenSuffix) { - const Matcher<const wchar_t*> m1 = EndsWith(L""); - EXPECT_TRUE(m1.Matches(L"Hi")); - EXPECT_TRUE(m1.Matches(L"")); - EXPECT_FALSE(m1.Matches(nullptr)); - - const Matcher<const ::std::wstring&> m2 = EndsWith(::std::wstring(L"Hi")); - EXPECT_TRUE(m2.Matches(L"Hi")); - EXPECT_TRUE(m2.Matches(L"Wow Hi Hi")); - EXPECT_TRUE(m2.Matches(L"Super Hi")); - EXPECT_FALSE(m2.Matches(L"i")); - EXPECT_FALSE(m2.Matches(L"Hi ")); -} - -TEST(StdWideEndsWithTest, CanDescribeSelf) { - Matcher<const ::std::wstring> m = EndsWith(L"Hi"); - EXPECT_EQ("ends with L\"Hi\"", Describe(m)); -} - -#endif // GTEST_HAS_STD_WSTRING - -typedef ::std::tuple<long, int> Tuple2; // NOLINT - -// Tests that Eq() matches a 2-tuple where the first field == the -// second field. -TEST(Eq2Test, MatchesEqualArguments) { - Matcher<const Tuple2&> m = Eq(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 5))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 6))); -} - -// Tests that Eq() describes itself properly. -TEST(Eq2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Eq(); - EXPECT_EQ("are an equal pair", Describe(m)); -} - -// Tests that Ge() matches a 2-tuple where the first field >= the -// second field. -TEST(Ge2Test, MatchesGreaterThanOrEqualArguments) { - Matcher<const Tuple2&> m = Ge(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 4))); - EXPECT_TRUE(m.Matches(Tuple2(5L, 5))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 6))); -} - -// Tests that Ge() describes itself properly. -TEST(Ge2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Ge(); - EXPECT_EQ("are a pair where the first >= the second", Describe(m)); -} - -// Tests that Gt() matches a 2-tuple where the first field > the -// second field. -TEST(Gt2Test, MatchesGreaterThanArguments) { - Matcher<const Tuple2&> m = Gt(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 4))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 5))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 6))); -} - -// Tests that Gt() describes itself properly. -TEST(Gt2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Gt(); - EXPECT_EQ("are a pair where the first > the second", Describe(m)); -} - -// Tests that Le() matches a 2-tuple where the first field <= the -// second field. -TEST(Le2Test, MatchesLessThanOrEqualArguments) { - Matcher<const Tuple2&> m = Le(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 6))); - EXPECT_TRUE(m.Matches(Tuple2(5L, 5))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 4))); -} - -// Tests that Le() describes itself properly. -TEST(Le2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Le(); - EXPECT_EQ("are a pair where the first <= the second", Describe(m)); -} - -// Tests that Lt() matches a 2-tuple where the first field < the -// second field. -TEST(Lt2Test, MatchesLessThanArguments) { - Matcher<const Tuple2&> m = Lt(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 6))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 5))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 4))); -} - -// Tests that Lt() describes itself properly. -TEST(Lt2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Lt(); - EXPECT_EQ("are a pair where the first < the second", Describe(m)); -} - -// Tests that Ne() matches a 2-tuple where the first field != the -// second field. -TEST(Ne2Test, MatchesUnequalArguments) { - Matcher<const Tuple2&> m = Ne(); - EXPECT_TRUE(m.Matches(Tuple2(5L, 6))); - EXPECT_TRUE(m.Matches(Tuple2(5L, 4))); - EXPECT_FALSE(m.Matches(Tuple2(5L, 5))); -} - -// Tests that Ne() describes itself properly. -TEST(Ne2Test, CanDescribeSelf) { - Matcher<const Tuple2&> m = Ne(); - EXPECT_EQ("are an unequal pair", Describe(m)); -} - -TEST(PairMatchBaseTest, WorksWithMoveOnly) { - using Pointers = std::tuple<std::unique_ptr<int>, std::unique_ptr<int>>; - Matcher<Pointers> matcher = Eq(); - Pointers pointers; - // Tested values don't matter; the point is that matcher does not copy the - // matched values. - EXPECT_TRUE(matcher.Matches(pointers)); -} - -// Tests that IsNan() matches a NaN, with float. -TEST(IsNan, FloatMatchesNan) { - float quiet_nan = std::numeric_limits<float>::quiet_NaN(); - float other_nan = std::nanf("1"); - float real_value = 1.0f; - - Matcher<float> m = IsNan(); - EXPECT_TRUE(m.Matches(quiet_nan)); - EXPECT_TRUE(m.Matches(other_nan)); - EXPECT_FALSE(m.Matches(real_value)); - - Matcher<float&> m_ref = IsNan(); - EXPECT_TRUE(m_ref.Matches(quiet_nan)); - EXPECT_TRUE(m_ref.Matches(other_nan)); - EXPECT_FALSE(m_ref.Matches(real_value)); - - Matcher<const float&> m_cref = IsNan(); - EXPECT_TRUE(m_cref.Matches(quiet_nan)); - EXPECT_TRUE(m_cref.Matches(other_nan)); - EXPECT_FALSE(m_cref.Matches(real_value)); -} - -// Tests that IsNan() matches a NaN, with double. -TEST(IsNan, DoubleMatchesNan) { - double quiet_nan = std::numeric_limits<double>::quiet_NaN(); - double other_nan = std::nan("1"); - double real_value = 1.0; - - Matcher<double> m = IsNan(); - EXPECT_TRUE(m.Matches(quiet_nan)); - EXPECT_TRUE(m.Matches(other_nan)); - EXPECT_FALSE(m.Matches(real_value)); - - Matcher<double&> m_ref = IsNan(); - EXPECT_TRUE(m_ref.Matches(quiet_nan)); - EXPECT_TRUE(m_ref.Matches(other_nan)); - EXPECT_FALSE(m_ref.Matches(real_value)); - - Matcher<const double&> m_cref = IsNan(); - EXPECT_TRUE(m_cref.Matches(quiet_nan)); - EXPECT_TRUE(m_cref.Matches(other_nan)); - EXPECT_FALSE(m_cref.Matches(real_value)); -} - -// Tests that IsNan() matches a NaN, with long double. -TEST(IsNan, LongDoubleMatchesNan) { - long double quiet_nan = std::numeric_limits<long double>::quiet_NaN(); - long double other_nan = std::nan("1"); - long double real_value = 1.0; - - Matcher<long double> m = IsNan(); - EXPECT_TRUE(m.Matches(quiet_nan)); - EXPECT_TRUE(m.Matches(other_nan)); - EXPECT_FALSE(m.Matches(real_value)); - - Matcher<long double&> m_ref = IsNan(); - EXPECT_TRUE(m_ref.Matches(quiet_nan)); - EXPECT_TRUE(m_ref.Matches(other_nan)); - EXPECT_FALSE(m_ref.Matches(real_value)); - - Matcher<const long double&> m_cref = IsNan(); - EXPECT_TRUE(m_cref.Matches(quiet_nan)); - EXPECT_TRUE(m_cref.Matches(other_nan)); - EXPECT_FALSE(m_cref.Matches(real_value)); -} - -// Tests that IsNan() works with Not. -TEST(IsNan, NotMatchesNan) { - Matcher<float> mf = Not(IsNan()); - EXPECT_FALSE(mf.Matches(std::numeric_limits<float>::quiet_NaN())); - EXPECT_FALSE(mf.Matches(std::nanf("1"))); - EXPECT_TRUE(mf.Matches(1.0)); - - Matcher<double> md = Not(IsNan()); - EXPECT_FALSE(md.Matches(std::numeric_limits<double>::quiet_NaN())); - EXPECT_FALSE(md.Matches(std::nan("1"))); - EXPECT_TRUE(md.Matches(1.0)); - - Matcher<long double> mld = Not(IsNan()); - EXPECT_FALSE(mld.Matches(std::numeric_limits<long double>::quiet_NaN())); - EXPECT_FALSE(mld.Matches(std::nanl("1"))); - EXPECT_TRUE(mld.Matches(1.0)); -} - -// Tests that IsNan() can describe itself. -TEST(IsNan, CanDescribeSelf) { - Matcher<float> mf = IsNan(); - EXPECT_EQ("is NaN", Describe(mf)); - - Matcher<double> md = IsNan(); - EXPECT_EQ("is NaN", Describe(md)); - - Matcher<long double> mld = IsNan(); - EXPECT_EQ("is NaN", Describe(mld)); -} - -// Tests that IsNan() can describe itself with Not. -TEST(IsNan, CanDescribeSelfWithNot) { - Matcher<float> mf = Not(IsNan()); - EXPECT_EQ("isn't NaN", Describe(mf)); - - Matcher<double> md = Not(IsNan()); - EXPECT_EQ("isn't NaN", Describe(md)); - - Matcher<long double> mld = Not(IsNan()); - EXPECT_EQ("isn't NaN", Describe(mld)); -} - -// Tests that FloatEq() matches a 2-tuple where -// FloatEq(first field) matches the second field. -TEST(FloatEq2Test, MatchesEqualArguments) { - typedef ::std::tuple<float, float> Tpl; - Matcher<const Tpl&> m = FloatEq(); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(0.3f, 0.1f + 0.1f + 0.1f))); - EXPECT_FALSE(m.Matches(Tpl(1.1f, 1.0f))); -} - -// Tests that FloatEq() describes itself properly. -TEST(FloatEq2Test, CanDescribeSelf) { - Matcher<const ::std::tuple<float, float>&> m = FloatEq(); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that NanSensitiveFloatEq() matches a 2-tuple where -// NanSensitiveFloatEq(first field) matches the second field. -TEST(NanSensitiveFloatEqTest, MatchesEqualArgumentsWithNaN) { - typedef ::std::tuple<float, float> Tpl; - Matcher<const Tpl&> m = NanSensitiveFloatEq(); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(std::numeric_limits<float>::quiet_NaN(), - std::numeric_limits<float>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(1.1f, 1.0f))); - EXPECT_FALSE(m.Matches(Tpl(1.0f, std::numeric_limits<float>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(std::numeric_limits<float>::quiet_NaN(), 1.0f))); -} - -// Tests that NanSensitiveFloatEq() describes itself properly. -TEST(NanSensitiveFloatEqTest, CanDescribeSelfWithNaNs) { - Matcher<const ::std::tuple<float, float>&> m = NanSensitiveFloatEq(); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that DoubleEq() matches a 2-tuple where -// DoubleEq(first field) matches the second field. -TEST(DoubleEq2Test, MatchesEqualArguments) { - typedef ::std::tuple<double, double> Tpl; - Matcher<const Tpl&> m = DoubleEq(); - EXPECT_TRUE(m.Matches(Tpl(1.0, 1.0))); - EXPECT_TRUE(m.Matches(Tpl(0.3, 0.1 + 0.1 + 0.1))); - EXPECT_FALSE(m.Matches(Tpl(1.1, 1.0))); -} - -// Tests that DoubleEq() describes itself properly. -TEST(DoubleEq2Test, CanDescribeSelf) { - Matcher<const ::std::tuple<double, double>&> m = DoubleEq(); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that NanSensitiveDoubleEq() matches a 2-tuple where -// NanSensitiveDoubleEq(first field) matches the second field. -TEST(NanSensitiveDoubleEqTest, MatchesEqualArgumentsWithNaN) { - typedef ::std::tuple<double, double> Tpl; - Matcher<const Tpl&> m = NanSensitiveDoubleEq(); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(std::numeric_limits<double>::quiet_NaN(), - std::numeric_limits<double>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(1.1f, 1.0f))); - EXPECT_FALSE(m.Matches(Tpl(1.0f, std::numeric_limits<double>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(std::numeric_limits<double>::quiet_NaN(), 1.0f))); -} - -// Tests that DoubleEq() describes itself properly. -TEST(NanSensitiveDoubleEqTest, CanDescribeSelfWithNaNs) { - Matcher<const ::std::tuple<double, double>&> m = NanSensitiveDoubleEq(); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that FloatEq() matches a 2-tuple where -// FloatNear(first field, max_abs_error) matches the second field. -TEST(FloatNear2Test, MatchesEqualArguments) { - typedef ::std::tuple<float, float> Tpl; - Matcher<const Tpl&> m = FloatNear(0.5f); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(1.3f, 1.0f))); - EXPECT_FALSE(m.Matches(Tpl(1.8f, 1.0f))); -} - -// Tests that FloatNear() describes itself properly. -TEST(FloatNear2Test, CanDescribeSelf) { - Matcher<const ::std::tuple<float, float>&> m = FloatNear(0.5f); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that NanSensitiveFloatNear() matches a 2-tuple where -// NanSensitiveFloatNear(first field) matches the second field. -TEST(NanSensitiveFloatNearTest, MatchesNearbyArgumentsWithNaN) { - typedef ::std::tuple<float, float> Tpl; - Matcher<const Tpl&> m = NanSensitiveFloatNear(0.5f); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(1.1f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(std::numeric_limits<float>::quiet_NaN(), - std::numeric_limits<float>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(1.6f, 1.0f))); - EXPECT_FALSE(m.Matches(Tpl(1.0f, std::numeric_limits<float>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(std::numeric_limits<float>::quiet_NaN(), 1.0f))); -} - -// Tests that NanSensitiveFloatNear() describes itself properly. -TEST(NanSensitiveFloatNearTest, CanDescribeSelfWithNaNs) { - Matcher<const ::std::tuple<float, float>&> m = NanSensitiveFloatNear(0.5f); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that FloatEq() matches a 2-tuple where -// DoubleNear(first field, max_abs_error) matches the second field. -TEST(DoubleNear2Test, MatchesEqualArguments) { - typedef ::std::tuple<double, double> Tpl; - Matcher<const Tpl&> m = DoubleNear(0.5); - EXPECT_TRUE(m.Matches(Tpl(1.0, 1.0))); - EXPECT_TRUE(m.Matches(Tpl(1.3, 1.0))); - EXPECT_FALSE(m.Matches(Tpl(1.8, 1.0))); -} - -// Tests that DoubleNear() describes itself properly. -TEST(DoubleNear2Test, CanDescribeSelf) { - Matcher<const ::std::tuple<double, double>&> m = DoubleNear(0.5); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that NanSensitiveDoubleNear() matches a 2-tuple where -// NanSensitiveDoubleNear(first field) matches the second field. -TEST(NanSensitiveDoubleNearTest, MatchesNearbyArgumentsWithNaN) { - typedef ::std::tuple<double, double> Tpl; - Matcher<const Tpl&> m = NanSensitiveDoubleNear(0.5f); - EXPECT_TRUE(m.Matches(Tpl(1.0f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(1.1f, 1.0f))); - EXPECT_TRUE(m.Matches(Tpl(std::numeric_limits<double>::quiet_NaN(), - std::numeric_limits<double>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(1.6f, 1.0f))); - EXPECT_FALSE(m.Matches(Tpl(1.0f, std::numeric_limits<double>::quiet_NaN()))); - EXPECT_FALSE(m.Matches(Tpl(std::numeric_limits<double>::quiet_NaN(), 1.0f))); -} - -// Tests that NanSensitiveDoubleNear() describes itself properly. -TEST(NanSensitiveDoubleNearTest, CanDescribeSelfWithNaNs) { - Matcher<const ::std::tuple<double, double>&> m = NanSensitiveDoubleNear(0.5f); - EXPECT_EQ("are an almost-equal pair", Describe(m)); -} - -// Tests that Not(m) matches any value that doesn't match m. -TEST(NotTest, NegatesMatcher) { - Matcher<int> m; - m = Not(Eq(2)); - EXPECT_TRUE(m.Matches(3)); - EXPECT_FALSE(m.Matches(2)); -} - -// Tests that Not(m) describes itself properly. -TEST(NotTest, CanDescribeSelf) { - Matcher<int> m = Not(Eq(5)); - EXPECT_EQ("isn't equal to 5", Describe(m)); -} - -// Tests that monomorphic matchers are safely cast by the Not matcher. -TEST(NotTest, NotMatcherSafelyCastsMonomorphicMatchers) { - // greater_than_5 is a monomorphic matcher. - Matcher<int> greater_than_5 = Gt(5); - - Matcher<const int&> m = Not(greater_than_5); - Matcher<int&> m2 = Not(greater_than_5); - Matcher<int&> m3 = Not(m); -} - -// Helper to allow easy testing of AllOf matchers with num parameters. -void AllOfMatches(int num, const Matcher<int>& m) { - SCOPED_TRACE(Describe(m)); - EXPECT_TRUE(m.Matches(0)); - for (int i = 1; i <= num; ++i) { - EXPECT_FALSE(m.Matches(i)); - } - EXPECT_TRUE(m.Matches(num + 1)); -} - -// Tests that AllOf(m1, ..., mn) matches any value that matches all of -// the given matchers. -TEST(AllOfTest, MatchesWhenAllMatch) { - Matcher<int> m; - m = AllOf(Le(2), Ge(1)); - EXPECT_TRUE(m.Matches(1)); - EXPECT_TRUE(m.Matches(2)); - EXPECT_FALSE(m.Matches(0)); - EXPECT_FALSE(m.Matches(3)); - - m = AllOf(Gt(0), Ne(1), Ne(2)); - EXPECT_TRUE(m.Matches(3)); - EXPECT_FALSE(m.Matches(2)); - EXPECT_FALSE(m.Matches(1)); - EXPECT_FALSE(m.Matches(0)); - - m = AllOf(Gt(0), Ne(1), Ne(2), Ne(3)); - EXPECT_TRUE(m.Matches(4)); - EXPECT_FALSE(m.Matches(3)); - EXPECT_FALSE(m.Matches(2)); - EXPECT_FALSE(m.Matches(1)); - EXPECT_FALSE(m.Matches(0)); - - m = AllOf(Ge(0), Lt(10), Ne(3), Ne(5), Ne(7)); - EXPECT_TRUE(m.Matches(0)); - EXPECT_TRUE(m.Matches(1)); - EXPECT_FALSE(m.Matches(3)); - - // The following tests for varying number of sub-matchers. Due to the way - // the sub-matchers are handled it is enough to test every sub-matcher once - // with sub-matchers using the same matcher type. Varying matcher types are - // checked for above. - AllOfMatches(2, AllOf(Ne(1), Ne(2))); - AllOfMatches(3, AllOf(Ne(1), Ne(2), Ne(3))); - AllOfMatches(4, AllOf(Ne(1), Ne(2), Ne(3), Ne(4))); - AllOfMatches(5, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5))); - AllOfMatches(6, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6))); - AllOfMatches(7, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7))); - AllOfMatches(8, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), - Ne(8))); - AllOfMatches(9, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), - Ne(8), Ne(9))); - AllOfMatches(10, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), Ne(8), - Ne(9), Ne(10))); - AllOfMatches( - 50, AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), Ne(8), Ne(9), - Ne(10), Ne(11), Ne(12), Ne(13), Ne(14), Ne(15), Ne(16), Ne(17), - Ne(18), Ne(19), Ne(20), Ne(21), Ne(22), Ne(23), Ne(24), Ne(25), - Ne(26), Ne(27), Ne(28), Ne(29), Ne(30), Ne(31), Ne(32), Ne(33), - Ne(34), Ne(35), Ne(36), Ne(37), Ne(38), Ne(39), Ne(40), Ne(41), - Ne(42), Ne(43), Ne(44), Ne(45), Ne(46), Ne(47), Ne(48), Ne(49), - Ne(50))); -} - - -// Tests that AllOf(m1, ..., mn) describes itself properly. -TEST(AllOfTest, CanDescribeSelf) { - Matcher<int> m; - m = AllOf(Le(2), Ge(1)); - EXPECT_EQ("(is <= 2) and (is >= 1)", Describe(m)); - - m = AllOf(Gt(0), Ne(1), Ne(2)); - std::string expected_descr1 = - "(is > 0) and (isn't equal to 1) and (isn't equal to 2)"; - EXPECT_EQ(expected_descr1, Describe(m)); - - m = AllOf(Gt(0), Ne(1), Ne(2), Ne(3)); - std::string expected_descr2 = - "(is > 0) and (isn't equal to 1) and (isn't equal to 2) and (isn't equal " - "to 3)"; - EXPECT_EQ(expected_descr2, Describe(m)); - - m = AllOf(Ge(0), Lt(10), Ne(3), Ne(5), Ne(7)); - std::string expected_descr3 = - "(is >= 0) and (is < 10) and (isn't equal to 3) and (isn't equal to 5) " - "and (isn't equal to 7)"; - EXPECT_EQ(expected_descr3, Describe(m)); -} - -// Tests that AllOf(m1, ..., mn) describes its negation properly. -TEST(AllOfTest, CanDescribeNegation) { - Matcher<int> m; - m = AllOf(Le(2), Ge(1)); - std::string expected_descr4 = "(isn't <= 2) or (isn't >= 1)"; - EXPECT_EQ(expected_descr4, DescribeNegation(m)); - - m = AllOf(Gt(0), Ne(1), Ne(2)); - std::string expected_descr5 = - "(isn't > 0) or (is equal to 1) or (is equal to 2)"; - EXPECT_EQ(expected_descr5, DescribeNegation(m)); - - m = AllOf(Gt(0), Ne(1), Ne(2), Ne(3)); - std::string expected_descr6 = - "(isn't > 0) or (is equal to 1) or (is equal to 2) or (is equal to 3)"; - EXPECT_EQ(expected_descr6, DescribeNegation(m)); - - m = AllOf(Ge(0), Lt(10), Ne(3), Ne(5), Ne(7)); - std::string expected_desr7 = - "(isn't >= 0) or (isn't < 10) or (is equal to 3) or (is equal to 5) or " - "(is equal to 7)"; - EXPECT_EQ(expected_desr7, DescribeNegation(m)); - - m = AllOf(Ne(1), Ne(2), Ne(3), Ne(4), Ne(5), Ne(6), Ne(7), Ne(8), Ne(9), - Ne(10), Ne(11)); - AllOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11); - EXPECT_THAT(Describe(m), EndsWith("and (isn't equal to 11)")); - AllOfMatches(11, m); -} - -// Tests that monomorphic matchers are safely cast by the AllOf matcher. -TEST(AllOfTest, AllOfMatcherSafelyCastsMonomorphicMatchers) { - // greater_than_5 and less_than_10 are monomorphic matchers. - Matcher<int> greater_than_5 = Gt(5); - Matcher<int> less_than_10 = Lt(10); - - Matcher<const int&> m = AllOf(greater_than_5, less_than_10); - Matcher<int&> m2 = AllOf(greater_than_5, less_than_10); - Matcher<int&> m3 = AllOf(greater_than_5, m2); - - // Tests that BothOf works when composing itself. - Matcher<const int&> m4 = AllOf(greater_than_5, less_than_10, less_than_10); - Matcher<int&> m5 = AllOf(greater_than_5, less_than_10, less_than_10); -} - -TEST(AllOfTest, ExplainsResult) { - Matcher<int> m; - - // Successful match. Both matchers need to explain. The second - // matcher doesn't give an explanation, so only the first matcher's - // explanation is printed. - m = AllOf(GreaterThan(10), Lt(30)); - EXPECT_EQ("which is 15 more than 10", Explain(m, 25)); - - // Successful match. Both matchers need to explain. - m = AllOf(GreaterThan(10), GreaterThan(20)); - EXPECT_EQ("which is 20 more than 10, and which is 10 more than 20", - Explain(m, 30)); - - // Successful match. All matchers need to explain. The second - // matcher doesn't given an explanation. - m = AllOf(GreaterThan(10), Lt(30), GreaterThan(20)); - EXPECT_EQ("which is 15 more than 10, and which is 5 more than 20", - Explain(m, 25)); - - // Successful match. All matchers need to explain. - m = AllOf(GreaterThan(10), GreaterThan(20), GreaterThan(30)); - EXPECT_EQ("which is 30 more than 10, and which is 20 more than 20, " - "and which is 10 more than 30", - Explain(m, 40)); - - // Failed match. The first matcher, which failed, needs to - // explain. - m = AllOf(GreaterThan(10), GreaterThan(20)); - EXPECT_EQ("which is 5 less than 10", Explain(m, 5)); - - // Failed match. The second matcher, which failed, needs to - // explain. Since it doesn't given an explanation, nothing is - // printed. - m = AllOf(GreaterThan(10), Lt(30)); - EXPECT_EQ("", Explain(m, 40)); - - // Failed match. The second matcher, which failed, needs to - // explain. - m = AllOf(GreaterThan(10), GreaterThan(20)); - EXPECT_EQ("which is 5 less than 20", Explain(m, 15)); -} - -// Helper to allow easy testing of AnyOf matchers with num parameters. -static void AnyOfMatches(int num, const Matcher<int>& m) { - SCOPED_TRACE(Describe(m)); - EXPECT_FALSE(m.Matches(0)); - for (int i = 1; i <= num; ++i) { - EXPECT_TRUE(m.Matches(i)); - } - EXPECT_FALSE(m.Matches(num + 1)); -} - -static void AnyOfStringMatches(int num, const Matcher<std::string>& m) { - SCOPED_TRACE(Describe(m)); - EXPECT_FALSE(m.Matches(std::to_string(0))); - - for (int i = 1; i <= num; ++i) { - EXPECT_TRUE(m.Matches(std::to_string(i))); - } - EXPECT_FALSE(m.Matches(std::to_string(num + 1))); -} - -// Tests that AnyOf(m1, ..., mn) matches any value that matches at -// least one of the given matchers. -TEST(AnyOfTest, MatchesWhenAnyMatches) { - Matcher<int> m; - m = AnyOf(Le(1), Ge(3)); - EXPECT_TRUE(m.Matches(1)); - EXPECT_TRUE(m.Matches(4)); - EXPECT_FALSE(m.Matches(2)); - - m = AnyOf(Lt(0), Eq(1), Eq(2)); - EXPECT_TRUE(m.Matches(-1)); - EXPECT_TRUE(m.Matches(1)); - EXPECT_TRUE(m.Matches(2)); - EXPECT_FALSE(m.Matches(0)); - - m = AnyOf(Lt(0), Eq(1), Eq(2), Eq(3)); - EXPECT_TRUE(m.Matches(-1)); - EXPECT_TRUE(m.Matches(1)); - EXPECT_TRUE(m.Matches(2)); - EXPECT_TRUE(m.Matches(3)); - EXPECT_FALSE(m.Matches(0)); - - m = AnyOf(Le(0), Gt(10), 3, 5, 7); - EXPECT_TRUE(m.Matches(0)); - EXPECT_TRUE(m.Matches(11)); - EXPECT_TRUE(m.Matches(3)); - EXPECT_FALSE(m.Matches(2)); - - // The following tests for varying number of sub-matchers. Due to the way - // the sub-matchers are handled it is enough to test every sub-matcher once - // with sub-matchers using the same matcher type. Varying matcher types are - // checked for above. - AnyOfMatches(2, AnyOf(1, 2)); - AnyOfMatches(3, AnyOf(1, 2, 3)); - AnyOfMatches(4, AnyOf(1, 2, 3, 4)); - AnyOfMatches(5, AnyOf(1, 2, 3, 4, 5)); - AnyOfMatches(6, AnyOf(1, 2, 3, 4, 5, 6)); - AnyOfMatches(7, AnyOf(1, 2, 3, 4, 5, 6, 7)); - AnyOfMatches(8, AnyOf(1, 2, 3, 4, 5, 6, 7, 8)); - AnyOfMatches(9, AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9)); - AnyOfMatches(10, AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)); -} - -// Tests the variadic version of the AnyOfMatcher. -TEST(AnyOfTest, VariadicMatchesWhenAnyMatches) { - // Also make sure AnyOf is defined in the right namespace and does not depend - // on ADL. - Matcher<int> m = ::testing::AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11); - - EXPECT_THAT(Describe(m), EndsWith("or (is equal to 11)")); - AnyOfMatches(11, m); - AnyOfMatches(50, AnyOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, - 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, - 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)); - AnyOfStringMatches( - 50, AnyOf("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", - "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", - "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", - "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", - "43", "44", "45", "46", "47", "48", "49", "50")); -} - -// Tests the variadic version of the ElementsAreMatcher -TEST(ElementsAreTest, HugeMatcher) { - vector<int> test_vector{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; - - EXPECT_THAT(test_vector, - ElementsAre(Eq(1), Eq(2), Lt(13), Eq(4), Eq(5), Eq(6), Eq(7), - Eq(8), Eq(9), Eq(10), Gt(1), Eq(12))); -} - -// Tests the variadic version of the UnorderedElementsAreMatcher -TEST(ElementsAreTest, HugeMatcherStr) { - vector<std::string> test_vector{ - "literal_string", "", "", "", "", "", "", "", "", "", "", ""}; - - EXPECT_THAT(test_vector, UnorderedElementsAre("literal_string", _, _, _, _, _, - _, _, _, _, _, _)); -} - -// Tests the variadic version of the UnorderedElementsAreMatcher -TEST(ElementsAreTest, HugeMatcherUnordered) { - vector<int> test_vector{2, 1, 8, 5, 4, 6, 7, 3, 9, 12, 11, 10}; - - EXPECT_THAT(test_vector, UnorderedElementsAre( - Eq(2), Eq(1), Gt(7), Eq(5), Eq(4), Eq(6), Eq(7), - Eq(3), Eq(9), Eq(12), Eq(11), Ne(122))); -} - - -// Tests that AnyOf(m1, ..., mn) describes itself properly. -TEST(AnyOfTest, CanDescribeSelf) { - Matcher<int> m; - m = AnyOf(Le(1), Ge(3)); - - EXPECT_EQ("(is <= 1) or (is >= 3)", - Describe(m)); - - m = AnyOf(Lt(0), Eq(1), Eq(2)); - EXPECT_EQ("(is < 0) or (is equal to 1) or (is equal to 2)", Describe(m)); - - m = AnyOf(Lt(0), Eq(1), Eq(2), Eq(3)); - EXPECT_EQ("(is < 0) or (is equal to 1) or (is equal to 2) or (is equal to 3)", - Describe(m)); - - m = AnyOf(Le(0), Gt(10), 3, 5, 7); - EXPECT_EQ( - "(is <= 0) or (is > 10) or (is equal to 3) or (is equal to 5) or (is " - "equal to 7)", - Describe(m)); -} - -// Tests that AnyOf(m1, ..., mn) describes its negation properly. -TEST(AnyOfTest, CanDescribeNegation) { - Matcher<int> m; - m = AnyOf(Le(1), Ge(3)); - EXPECT_EQ("(isn't <= 1) and (isn't >= 3)", - DescribeNegation(m)); - - m = AnyOf(Lt(0), Eq(1), Eq(2)); - EXPECT_EQ("(isn't < 0) and (isn't equal to 1) and (isn't equal to 2)", - DescribeNegation(m)); - - m = AnyOf(Lt(0), Eq(1), Eq(2), Eq(3)); - EXPECT_EQ( - "(isn't < 0) and (isn't equal to 1) and (isn't equal to 2) and (isn't " - "equal to 3)", - DescribeNegation(m)); - - m = AnyOf(Le(0), Gt(10), 3, 5, 7); - EXPECT_EQ( - "(isn't <= 0) and (isn't > 10) and (isn't equal to 3) and (isn't equal " - "to 5) and (isn't equal to 7)", - DescribeNegation(m)); -} - -// Tests that monomorphic matchers are safely cast by the AnyOf matcher. -TEST(AnyOfTest, AnyOfMatcherSafelyCastsMonomorphicMatchers) { - // greater_than_5 and less_than_10 are monomorphic matchers. - Matcher<int> greater_than_5 = Gt(5); - Matcher<int> less_than_10 = Lt(10); - - Matcher<const int&> m = AnyOf(greater_than_5, less_than_10); - Matcher<int&> m2 = AnyOf(greater_than_5, less_than_10); - Matcher<int&> m3 = AnyOf(greater_than_5, m2); - - // Tests that EitherOf works when composing itself. - Matcher<const int&> m4 = AnyOf(greater_than_5, less_than_10, less_than_10); - Matcher<int&> m5 = AnyOf(greater_than_5, less_than_10, less_than_10); -} - -TEST(AnyOfTest, ExplainsResult) { - Matcher<int> m; - - // Failed match. Both matchers need to explain. The second - // matcher doesn't give an explanation, so only the first matcher's - // explanation is printed. - m = AnyOf(GreaterThan(10), Lt(0)); - EXPECT_EQ("which is 5 less than 10", Explain(m, 5)); - - // Failed match. Both matchers need to explain. - m = AnyOf(GreaterThan(10), GreaterThan(20)); - EXPECT_EQ("which is 5 less than 10, and which is 15 less than 20", - Explain(m, 5)); - - // Failed match. All matchers need to explain. The second - // matcher doesn't given an explanation. - m = AnyOf(GreaterThan(10), Gt(20), GreaterThan(30)); - EXPECT_EQ("which is 5 less than 10, and which is 25 less than 30", - Explain(m, 5)); - - // Failed match. All matchers need to explain. - m = AnyOf(GreaterThan(10), GreaterThan(20), GreaterThan(30)); - EXPECT_EQ("which is 5 less than 10, and which is 15 less than 20, " - "and which is 25 less than 30", - Explain(m, 5)); - - // Successful match. The first matcher, which succeeded, needs to - // explain. - m = AnyOf(GreaterThan(10), GreaterThan(20)); - EXPECT_EQ("which is 5 more than 10", Explain(m, 15)); - - // Successful match. The second matcher, which succeeded, needs to - // explain. Since it doesn't given an explanation, nothing is - // printed. - m = AnyOf(GreaterThan(10), Lt(30)); - EXPECT_EQ("", Explain(m, 0)); - - // Successful match. The second matcher, which succeeded, needs to - // explain. - m = AnyOf(GreaterThan(30), GreaterThan(20)); - EXPECT_EQ("which is 5 more than 20", Explain(m, 25)); -} - -// The following predicate function and predicate functor are for -// testing the Truly(predicate) matcher. - -// Returns non-zero if the input is positive. Note that the return -// type of this function is not bool. It's OK as Truly() accepts any -// unary function or functor whose return type can be implicitly -// converted to bool. -int IsPositive(double x) { - return x > 0 ? 1 : 0; -} - -// This functor returns true if the input is greater than the given -// number. -class IsGreaterThan { - public: - explicit IsGreaterThan(int threshold) : threshold_(threshold) {} - - bool operator()(int n) const { return n > threshold_; } - - private: - int threshold_; -}; - -// For testing Truly(). -const int foo = 0; - -// This predicate returns true if and only if the argument references foo and -// has a zero value. -bool ReferencesFooAndIsZero(const int& n) { - return (&n == &foo) && (n == 0); -} - -// Tests that Truly(predicate) matches what satisfies the given -// predicate. -TEST(TrulyTest, MatchesWhatSatisfiesThePredicate) { - Matcher<double> m = Truly(IsPositive); - EXPECT_TRUE(m.Matches(2.0)); - EXPECT_FALSE(m.Matches(-1.5)); -} - -// Tests that Truly(predicate_functor) works too. -TEST(TrulyTest, CanBeUsedWithFunctor) { - Matcher<int> m = Truly(IsGreaterThan(5)); - EXPECT_TRUE(m.Matches(6)); - EXPECT_FALSE(m.Matches(4)); -} - -// A class that can be implicitly converted to bool. -class ConvertibleToBool { - public: - explicit ConvertibleToBool(int number) : number_(number) {} - operator bool() const { return number_ != 0; } - - private: - int number_; -}; - -ConvertibleToBool IsNotZero(int number) { - return ConvertibleToBool(number); -} - -// Tests that the predicate used in Truly() may return a class that's -// implicitly convertible to bool, even when the class has no -// operator!(). -TEST(TrulyTest, PredicateCanReturnAClassConvertibleToBool) { - Matcher<int> m = Truly(IsNotZero); - EXPECT_TRUE(m.Matches(1)); - EXPECT_FALSE(m.Matches(0)); -} - -// Tests that Truly(predicate) can describe itself properly. -TEST(TrulyTest, CanDescribeSelf) { - Matcher<double> m = Truly(IsPositive); - EXPECT_EQ("satisfies the given predicate", - Describe(m)); -} - -// Tests that Truly(predicate) works when the matcher takes its -// argument by reference. -TEST(TrulyTest, WorksForByRefArguments) { - Matcher<const int&> m = Truly(ReferencesFooAndIsZero); - EXPECT_TRUE(m.Matches(foo)); - int n = 0; - EXPECT_FALSE(m.Matches(n)); -} - -// Tests that Truly(predicate) provides a helpful reason when it fails. -TEST(TrulyTest, ExplainsFailures) { - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(Truly(IsPositive), -1, &listener)); - EXPECT_EQ(listener.str(), "didn't satisfy the given predicate"); -} - -// Tests that Matches(m) is a predicate satisfied by whatever that -// matches matcher m. -TEST(MatchesTest, IsSatisfiedByWhatMatchesTheMatcher) { - EXPECT_TRUE(Matches(Ge(0))(1)); - EXPECT_FALSE(Matches(Eq('a'))('b')); -} - -// Tests that Matches(m) works when the matcher takes its argument by -// reference. -TEST(MatchesTest, WorksOnByRefArguments) { - int m = 0, n = 0; - EXPECT_TRUE(Matches(AllOf(Ref(n), Eq(0)))(n)); - EXPECT_FALSE(Matches(Ref(m))(n)); -} - -// Tests that a Matcher on non-reference type can be used in -// Matches(). -TEST(MatchesTest, WorksWithMatcherOnNonRefType) { - Matcher<int> eq5 = Eq(5); - EXPECT_TRUE(Matches(eq5)(5)); - EXPECT_FALSE(Matches(eq5)(2)); -} - -// Tests Value(value, matcher). Since Value() is a simple wrapper for -// Matches(), which has been tested already, we don't spend a lot of -// effort on testing Value(). -TEST(ValueTest, WorksWithPolymorphicMatcher) { - EXPECT_TRUE(Value("hi", StartsWith("h"))); - EXPECT_FALSE(Value(5, Gt(10))); -} - -TEST(ValueTest, WorksWithMonomorphicMatcher) { - const Matcher<int> is_zero = Eq(0); - EXPECT_TRUE(Value(0, is_zero)); - EXPECT_FALSE(Value('a', is_zero)); - - int n = 0; - const Matcher<const int&> ref_n = Ref(n); - EXPECT_TRUE(Value(n, ref_n)); - EXPECT_FALSE(Value(1, ref_n)); -} - -TEST(ExplainMatchResultTest, WorksWithPolymorphicMatcher) { - StringMatchResultListener listener1; - EXPECT_TRUE(ExplainMatchResult(PolymorphicIsEven(), 42, &listener1)); - EXPECT_EQ("% 2 == 0", listener1.str()); - - StringMatchResultListener listener2; - EXPECT_FALSE(ExplainMatchResult(Ge(42), 1.5, &listener2)); - EXPECT_EQ("", listener2.str()); -} - -TEST(ExplainMatchResultTest, WorksWithMonomorphicMatcher) { - const Matcher<int> is_even = PolymorphicIsEven(); - StringMatchResultListener listener1; - EXPECT_TRUE(ExplainMatchResult(is_even, 42, &listener1)); - EXPECT_EQ("% 2 == 0", listener1.str()); - - const Matcher<const double&> is_zero = Eq(0); - StringMatchResultListener listener2; - EXPECT_FALSE(ExplainMatchResult(is_zero, 1.5, &listener2)); - EXPECT_EQ("", listener2.str()); -} - -MATCHER(ConstructNoArg, "") { return true; } -MATCHER_P(Construct1Arg, arg1, "") { return true; } -MATCHER_P2(Construct2Args, arg1, arg2, "") { return true; } - -TEST(MatcherConstruct, ExplicitVsImplicit) { - { - // No arg constructor can be constructed with empty brace. - ConstructNoArgMatcher m = {}; - (void)m; - // And with no args - ConstructNoArgMatcher m2; - (void)m2; - } - { - // The one arg constructor has an explicit constructor. - // This is to prevent the implicit conversion. - using M = Construct1ArgMatcherP<int>; - EXPECT_TRUE((std::is_constructible<M, int>::value)); - EXPECT_FALSE((std::is_convertible<int, M>::value)); - } - { - // Multiple arg matchers can be constructed with an implicit construction. - Construct2ArgsMatcherP2<int, double> m = {1, 2.2}; - (void)m; - } -} - -MATCHER_P(Really, inner_matcher, "") { - return ExplainMatchResult(inner_matcher, arg, result_listener); -} - -TEST(ExplainMatchResultTest, WorksInsideMATCHER) { - EXPECT_THAT(0, Really(Eq(0))); -} - -TEST(DescribeMatcherTest, WorksWithValue) { - EXPECT_EQ("is equal to 42", DescribeMatcher<int>(42)); - EXPECT_EQ("isn't equal to 42", DescribeMatcher<int>(42, true)); -} - -TEST(DescribeMatcherTest, WorksWithMonomorphicMatcher) { - const Matcher<int> monomorphic = Le(0); - EXPECT_EQ("is <= 0", DescribeMatcher<int>(monomorphic)); - EXPECT_EQ("isn't <= 0", DescribeMatcher<int>(monomorphic, true)); -} - -TEST(DescribeMatcherTest, WorksWithPolymorphicMatcher) { - EXPECT_EQ("is even", DescribeMatcher<int>(PolymorphicIsEven())); - EXPECT_EQ("is odd", DescribeMatcher<int>(PolymorphicIsEven(), true)); -} - -TEST(AllArgsTest, WorksForTuple) { - EXPECT_THAT(std::make_tuple(1, 2L), AllArgs(Lt())); - EXPECT_THAT(std::make_tuple(2L, 1), Not(AllArgs(Lt()))); -} - -TEST(AllArgsTest, WorksForNonTuple) { - EXPECT_THAT(42, AllArgs(Gt(0))); - EXPECT_THAT('a', Not(AllArgs(Eq('b')))); -} - -class AllArgsHelper { - public: - AllArgsHelper() {} - - MOCK_METHOD2(Helper, int(char x, int y)); - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(AllArgsHelper); -}; - -TEST(AllArgsTest, WorksInWithClause) { - AllArgsHelper helper; - ON_CALL(helper, Helper(_, _)) - .With(AllArgs(Lt())) - .WillByDefault(Return(1)); - EXPECT_CALL(helper, Helper(_, _)); - EXPECT_CALL(helper, Helper(_, _)) - .With(AllArgs(Gt())) - .WillOnce(Return(2)); - - EXPECT_EQ(1, helper.Helper('\1', 2)); - EXPECT_EQ(2, helper.Helper('a', 1)); -} - -class OptionalMatchersHelper { - public: - OptionalMatchersHelper() {} - - MOCK_METHOD0(NoArgs, int()); - - MOCK_METHOD1(OneArg, int(int y)); - - MOCK_METHOD2(TwoArgs, int(char x, int y)); - - MOCK_METHOD1(Overloaded, int(char x)); - MOCK_METHOD2(Overloaded, int(char x, int y)); - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(OptionalMatchersHelper); -}; - -TEST(AllArgsTest, WorksWithoutMatchers) { - OptionalMatchersHelper helper; - - ON_CALL(helper, NoArgs).WillByDefault(Return(10)); - ON_CALL(helper, OneArg).WillByDefault(Return(20)); - ON_CALL(helper, TwoArgs).WillByDefault(Return(30)); - - EXPECT_EQ(10, helper.NoArgs()); - EXPECT_EQ(20, helper.OneArg(1)); - EXPECT_EQ(30, helper.TwoArgs('\1', 2)); - - EXPECT_CALL(helper, NoArgs).Times(1); - EXPECT_CALL(helper, OneArg).WillOnce(Return(100)); - EXPECT_CALL(helper, OneArg(17)).WillOnce(Return(200)); - EXPECT_CALL(helper, TwoArgs).Times(0); - - EXPECT_EQ(10, helper.NoArgs()); - EXPECT_EQ(100, helper.OneArg(1)); - EXPECT_EQ(200, helper.OneArg(17)); -} - -// Tests that ASSERT_THAT() and EXPECT_THAT() work when the value -// matches the matcher. -TEST(MatcherAssertionTest, WorksWhenMatcherIsSatisfied) { - ASSERT_THAT(5, Ge(2)) << "This should succeed."; - ASSERT_THAT("Foo", EndsWith("oo")); - EXPECT_THAT(2, AllOf(Le(7), Ge(0))) << "This should succeed too."; - EXPECT_THAT("Hello", StartsWith("Hell")); -} - -// Tests that ASSERT_THAT() and EXPECT_THAT() work when the value -// doesn't match the matcher. -TEST(MatcherAssertionTest, WorksWhenMatcherIsNotSatisfied) { - // 'n' must be static as it is used in an EXPECT_FATAL_FAILURE(), - // which cannot reference auto variables. - static unsigned short n; // NOLINT - n = 5; - - EXPECT_FATAL_FAILURE(ASSERT_THAT(n, Gt(10)), - "Value of: n\n" - "Expected: is > 10\n" - " Actual: 5" + OfType("unsigned short")); - n = 0; - EXPECT_NONFATAL_FAILURE( - EXPECT_THAT(n, AllOf(Le(7), Ge(5))), - "Value of: n\n" - "Expected: (is <= 7) and (is >= 5)\n" - " Actual: 0" + OfType("unsigned short")); -} - -// Tests that ASSERT_THAT() and EXPECT_THAT() work when the argument -// has a reference type. -TEST(MatcherAssertionTest, WorksForByRefArguments) { - // We use a static variable here as EXPECT_FATAL_FAILURE() cannot - // reference auto variables. - static int n; - n = 0; - EXPECT_THAT(n, AllOf(Le(7), Ref(n))); - EXPECT_FATAL_FAILURE(ASSERT_THAT(n, Not(Ref(n))), - "Value of: n\n" - "Expected: does not reference the variable @"); - // Tests the "Actual" part. - EXPECT_FATAL_FAILURE(ASSERT_THAT(n, Not(Ref(n))), - "Actual: 0" + OfType("int") + ", which is located @"); -} - -// Tests that ASSERT_THAT() and EXPECT_THAT() work when the matcher is -// monomorphic. -TEST(MatcherAssertionTest, WorksForMonomorphicMatcher) { - Matcher<const char*> starts_with_he = StartsWith("he"); - ASSERT_THAT("hello", starts_with_he); - - Matcher<const std::string&> ends_with_ok = EndsWith("ok"); - ASSERT_THAT("book", ends_with_ok); - const std::string bad = "bad"; - EXPECT_NONFATAL_FAILURE(EXPECT_THAT(bad, ends_with_ok), - "Value of: bad\n" - "Expected: ends with \"ok\"\n" - " Actual: \"bad\""); - Matcher<int> is_greater_than_5 = Gt(5); - EXPECT_NONFATAL_FAILURE(EXPECT_THAT(5, is_greater_than_5), - "Value of: 5\n" - "Expected: is > 5\n" - " Actual: 5" + OfType("int")); -} - -// Tests floating-point matchers. -template <typename RawType> -class FloatingPointTest : public testing::Test { - protected: - typedef testing::internal::FloatingPoint<RawType> Floating; - typedef typename Floating::Bits Bits; - - FloatingPointTest() - : max_ulps_(Floating::kMaxUlps), - zero_bits_(Floating(0).bits()), - one_bits_(Floating(1).bits()), - infinity_bits_(Floating(Floating::Infinity()).bits()), - close_to_positive_zero_( - Floating::ReinterpretBits(zero_bits_ + max_ulps_/2)), - close_to_negative_zero_( - -Floating::ReinterpretBits(zero_bits_ + max_ulps_ - max_ulps_/2)), - further_from_negative_zero_(-Floating::ReinterpretBits( - zero_bits_ + max_ulps_ + 1 - max_ulps_/2)), - close_to_one_(Floating::ReinterpretBits(one_bits_ + max_ulps_)), - further_from_one_(Floating::ReinterpretBits(one_bits_ + max_ulps_ + 1)), - infinity_(Floating::Infinity()), - close_to_infinity_( - Floating::ReinterpretBits(infinity_bits_ - max_ulps_)), - further_from_infinity_( - Floating::ReinterpretBits(infinity_bits_ - max_ulps_ - 1)), - max_(Floating::Max()), - nan1_(Floating::ReinterpretBits(Floating::kExponentBitMask | 1)), - nan2_(Floating::ReinterpretBits(Floating::kExponentBitMask | 200)) { - } - - void TestSize() { - EXPECT_EQ(sizeof(RawType), sizeof(Bits)); - } - - // A battery of tests for FloatingEqMatcher::Matches. - // matcher_maker is a pointer to a function which creates a FloatingEqMatcher. - void TestMatches( - testing::internal::FloatingEqMatcher<RawType> (*matcher_maker)(RawType)) { - Matcher<RawType> m1 = matcher_maker(0.0); - EXPECT_TRUE(m1.Matches(-0.0)); - EXPECT_TRUE(m1.Matches(close_to_positive_zero_)); - EXPECT_TRUE(m1.Matches(close_to_negative_zero_)); - EXPECT_FALSE(m1.Matches(1.0)); - - Matcher<RawType> m2 = matcher_maker(close_to_positive_zero_); - EXPECT_FALSE(m2.Matches(further_from_negative_zero_)); - - Matcher<RawType> m3 = matcher_maker(1.0); - EXPECT_TRUE(m3.Matches(close_to_one_)); - EXPECT_FALSE(m3.Matches(further_from_one_)); - - // Test commutativity: matcher_maker(0.0).Matches(1.0) was tested above. - EXPECT_FALSE(m3.Matches(0.0)); - - Matcher<RawType> m4 = matcher_maker(-infinity_); - EXPECT_TRUE(m4.Matches(-close_to_infinity_)); - - Matcher<RawType> m5 = matcher_maker(infinity_); - EXPECT_TRUE(m5.Matches(close_to_infinity_)); - - // This is interesting as the representations of infinity_ and nan1_ - // are only 1 DLP apart. - EXPECT_FALSE(m5.Matches(nan1_)); - - // matcher_maker can produce a Matcher<const RawType&>, which is needed in - // some cases. - Matcher<const RawType&> m6 = matcher_maker(0.0); - EXPECT_TRUE(m6.Matches(-0.0)); - EXPECT_TRUE(m6.Matches(close_to_positive_zero_)); - EXPECT_FALSE(m6.Matches(1.0)); - - // matcher_maker can produce a Matcher<RawType&>, which is needed in some - // cases. - Matcher<RawType&> m7 = matcher_maker(0.0); - RawType x = 0.0; - EXPECT_TRUE(m7.Matches(x)); - x = 0.01f; - EXPECT_FALSE(m7.Matches(x)); - } - - // Pre-calculated numbers to be used by the tests. - - const Bits max_ulps_; - - const Bits zero_bits_; // The bits that represent 0.0. - const Bits one_bits_; // The bits that represent 1.0. - const Bits infinity_bits_; // The bits that represent +infinity. - - // Some numbers close to 0.0. - const RawType close_to_positive_zero_; - const RawType close_to_negative_zero_; - const RawType further_from_negative_zero_; - - // Some numbers close to 1.0. - const RawType close_to_one_; - const RawType further_from_one_; - - // Some numbers close to +infinity. - const RawType infinity_; - const RawType close_to_infinity_; - const RawType further_from_infinity_; - - // Maximum representable value that's not infinity. - const RawType max_; - - // Some NaNs. - const RawType nan1_; - const RawType nan2_; -}; - -// Tests floating-point matchers with fixed epsilons. -template <typename RawType> -class FloatingPointNearTest : public FloatingPointTest<RawType> { - protected: - typedef FloatingPointTest<RawType> ParentType; - - // A battery of tests for FloatingEqMatcher::Matches with a fixed epsilon. - // matcher_maker is a pointer to a function which creates a FloatingEqMatcher. - void TestNearMatches( - testing::internal::FloatingEqMatcher<RawType> - (*matcher_maker)(RawType, RawType)) { - Matcher<RawType> m1 = matcher_maker(0.0, 0.0); - EXPECT_TRUE(m1.Matches(0.0)); - EXPECT_TRUE(m1.Matches(-0.0)); - EXPECT_FALSE(m1.Matches(ParentType::close_to_positive_zero_)); - EXPECT_FALSE(m1.Matches(ParentType::close_to_negative_zero_)); - EXPECT_FALSE(m1.Matches(1.0)); - - Matcher<RawType> m2 = matcher_maker(0.0, 1.0); - EXPECT_TRUE(m2.Matches(0.0)); - EXPECT_TRUE(m2.Matches(-0.0)); - EXPECT_TRUE(m2.Matches(1.0)); - EXPECT_TRUE(m2.Matches(-1.0)); - EXPECT_FALSE(m2.Matches(ParentType::close_to_one_)); - EXPECT_FALSE(m2.Matches(-ParentType::close_to_one_)); - - // Check that inf matches inf, regardless of the of the specified max - // absolute error. - Matcher<RawType> m3 = matcher_maker(ParentType::infinity_, 0.0); - EXPECT_TRUE(m3.Matches(ParentType::infinity_)); - EXPECT_FALSE(m3.Matches(ParentType::close_to_infinity_)); - EXPECT_FALSE(m3.Matches(-ParentType::infinity_)); - - Matcher<RawType> m4 = matcher_maker(-ParentType::infinity_, 0.0); - EXPECT_TRUE(m4.Matches(-ParentType::infinity_)); - EXPECT_FALSE(m4.Matches(-ParentType::close_to_infinity_)); - EXPECT_FALSE(m4.Matches(ParentType::infinity_)); - - // Test various overflow scenarios. - Matcher<RawType> m5 = matcher_maker(ParentType::max_, ParentType::max_); - EXPECT_TRUE(m5.Matches(ParentType::max_)); - EXPECT_FALSE(m5.Matches(-ParentType::max_)); - - Matcher<RawType> m6 = matcher_maker(-ParentType::max_, ParentType::max_); - EXPECT_FALSE(m6.Matches(ParentType::max_)); - EXPECT_TRUE(m6.Matches(-ParentType::max_)); - - Matcher<RawType> m7 = matcher_maker(ParentType::max_, 0); - EXPECT_TRUE(m7.Matches(ParentType::max_)); - EXPECT_FALSE(m7.Matches(-ParentType::max_)); - - Matcher<RawType> m8 = matcher_maker(-ParentType::max_, 0); - EXPECT_FALSE(m8.Matches(ParentType::max_)); - EXPECT_TRUE(m8.Matches(-ParentType::max_)); - - // The difference between max() and -max() normally overflows to infinity, - // but it should still match if the max_abs_error is also infinity. - Matcher<RawType> m9 = matcher_maker( - ParentType::max_, ParentType::infinity_); - EXPECT_TRUE(m8.Matches(-ParentType::max_)); - - // matcher_maker can produce a Matcher<const RawType&>, which is needed in - // some cases. - Matcher<const RawType&> m10 = matcher_maker(0.0, 1.0); - EXPECT_TRUE(m10.Matches(-0.0)); - EXPECT_TRUE(m10.Matches(ParentType::close_to_positive_zero_)); - EXPECT_FALSE(m10.Matches(ParentType::close_to_one_)); - - // matcher_maker can produce a Matcher<RawType&>, which is needed in some - // cases. - Matcher<RawType&> m11 = matcher_maker(0.0, 1.0); - RawType x = 0.0; - EXPECT_TRUE(m11.Matches(x)); - x = 1.0f; - EXPECT_TRUE(m11.Matches(x)); - x = -1.0f; - EXPECT_TRUE(m11.Matches(x)); - x = 1.1f; - EXPECT_FALSE(m11.Matches(x)); - x = -1.1f; - EXPECT_FALSE(m11.Matches(x)); - } -}; - -// Instantiate FloatingPointTest for testing floats. -typedef FloatingPointTest<float> FloatTest; - -TEST_F(FloatTest, FloatEqApproximatelyMatchesFloats) { - TestMatches(&FloatEq); -} - -TEST_F(FloatTest, NanSensitiveFloatEqApproximatelyMatchesFloats) { - TestMatches(&NanSensitiveFloatEq); -} - -TEST_F(FloatTest, FloatEqCannotMatchNaN) { - // FloatEq never matches NaN. - Matcher<float> m = FloatEq(nan1_); - EXPECT_FALSE(m.Matches(nan1_)); - EXPECT_FALSE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(FloatTest, NanSensitiveFloatEqCanMatchNaN) { - // NanSensitiveFloatEq will match NaN. - Matcher<float> m = NanSensitiveFloatEq(nan1_); - EXPECT_TRUE(m.Matches(nan1_)); - EXPECT_TRUE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(FloatTest, FloatEqCanDescribeSelf) { - Matcher<float> m1 = FloatEq(2.0f); - EXPECT_EQ("is approximately 2", Describe(m1)); - EXPECT_EQ("isn't approximately 2", DescribeNegation(m1)); - - Matcher<float> m2 = FloatEq(0.5f); - EXPECT_EQ("is approximately 0.5", Describe(m2)); - EXPECT_EQ("isn't approximately 0.5", DescribeNegation(m2)); - - Matcher<float> m3 = FloatEq(nan1_); - EXPECT_EQ("never matches", Describe(m3)); - EXPECT_EQ("is anything", DescribeNegation(m3)); -} - -TEST_F(FloatTest, NanSensitiveFloatEqCanDescribeSelf) { - Matcher<float> m1 = NanSensitiveFloatEq(2.0f); - EXPECT_EQ("is approximately 2", Describe(m1)); - EXPECT_EQ("isn't approximately 2", DescribeNegation(m1)); - - Matcher<float> m2 = NanSensitiveFloatEq(0.5f); - EXPECT_EQ("is approximately 0.5", Describe(m2)); - EXPECT_EQ("isn't approximately 0.5", DescribeNegation(m2)); - - Matcher<float> m3 = NanSensitiveFloatEq(nan1_); - EXPECT_EQ("is NaN", Describe(m3)); - EXPECT_EQ("isn't NaN", DescribeNegation(m3)); -} - -// Instantiate FloatingPointTest for testing floats with a user-specified -// max absolute error. -typedef FloatingPointNearTest<float> FloatNearTest; - -TEST_F(FloatNearTest, FloatNearMatches) { - TestNearMatches(&FloatNear); -} - -TEST_F(FloatNearTest, NanSensitiveFloatNearApproximatelyMatchesFloats) { - TestNearMatches(&NanSensitiveFloatNear); -} - -TEST_F(FloatNearTest, FloatNearCanDescribeSelf) { - Matcher<float> m1 = FloatNear(2.0f, 0.5f); - EXPECT_EQ("is approximately 2 (absolute error <= 0.5)", Describe(m1)); - EXPECT_EQ( - "isn't approximately 2 (absolute error > 0.5)", DescribeNegation(m1)); - - Matcher<float> m2 = FloatNear(0.5f, 0.5f); - EXPECT_EQ("is approximately 0.5 (absolute error <= 0.5)", Describe(m2)); - EXPECT_EQ( - "isn't approximately 0.5 (absolute error > 0.5)", DescribeNegation(m2)); - - Matcher<float> m3 = FloatNear(nan1_, 0.0); - EXPECT_EQ("never matches", Describe(m3)); - EXPECT_EQ("is anything", DescribeNegation(m3)); -} - -TEST_F(FloatNearTest, NanSensitiveFloatNearCanDescribeSelf) { - Matcher<float> m1 = NanSensitiveFloatNear(2.0f, 0.5f); - EXPECT_EQ("is approximately 2 (absolute error <= 0.5)", Describe(m1)); - EXPECT_EQ( - "isn't approximately 2 (absolute error > 0.5)", DescribeNegation(m1)); - - Matcher<float> m2 = NanSensitiveFloatNear(0.5f, 0.5f); - EXPECT_EQ("is approximately 0.5 (absolute error <= 0.5)", Describe(m2)); - EXPECT_EQ( - "isn't approximately 0.5 (absolute error > 0.5)", DescribeNegation(m2)); - - Matcher<float> m3 = NanSensitiveFloatNear(nan1_, 0.1f); - EXPECT_EQ("is NaN", Describe(m3)); - EXPECT_EQ("isn't NaN", DescribeNegation(m3)); -} - -TEST_F(FloatNearTest, FloatNearCannotMatchNaN) { - // FloatNear never matches NaN. - Matcher<float> m = FloatNear(ParentType::nan1_, 0.1f); - EXPECT_FALSE(m.Matches(nan1_)); - EXPECT_FALSE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(FloatNearTest, NanSensitiveFloatNearCanMatchNaN) { - // NanSensitiveFloatNear will match NaN. - Matcher<float> m = NanSensitiveFloatNear(nan1_, 0.1f); - EXPECT_TRUE(m.Matches(nan1_)); - EXPECT_TRUE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -// Instantiate FloatingPointTest for testing doubles. -typedef FloatingPointTest<double> DoubleTest; - -TEST_F(DoubleTest, DoubleEqApproximatelyMatchesDoubles) { - TestMatches(&DoubleEq); -} - -TEST_F(DoubleTest, NanSensitiveDoubleEqApproximatelyMatchesDoubles) { - TestMatches(&NanSensitiveDoubleEq); -} - -TEST_F(DoubleTest, DoubleEqCannotMatchNaN) { - // DoubleEq never matches NaN. - Matcher<double> m = DoubleEq(nan1_); - EXPECT_FALSE(m.Matches(nan1_)); - EXPECT_FALSE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(DoubleTest, NanSensitiveDoubleEqCanMatchNaN) { - // NanSensitiveDoubleEq will match NaN. - Matcher<double> m = NanSensitiveDoubleEq(nan1_); - EXPECT_TRUE(m.Matches(nan1_)); - EXPECT_TRUE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(DoubleTest, DoubleEqCanDescribeSelf) { - Matcher<double> m1 = DoubleEq(2.0); - EXPECT_EQ("is approximately 2", Describe(m1)); - EXPECT_EQ("isn't approximately 2", DescribeNegation(m1)); - - Matcher<double> m2 = DoubleEq(0.5); - EXPECT_EQ("is approximately 0.5", Describe(m2)); - EXPECT_EQ("isn't approximately 0.5", DescribeNegation(m2)); - - Matcher<double> m3 = DoubleEq(nan1_); - EXPECT_EQ("never matches", Describe(m3)); - EXPECT_EQ("is anything", DescribeNegation(m3)); -} - -TEST_F(DoubleTest, NanSensitiveDoubleEqCanDescribeSelf) { - Matcher<double> m1 = NanSensitiveDoubleEq(2.0); - EXPECT_EQ("is approximately 2", Describe(m1)); - EXPECT_EQ("isn't approximately 2", DescribeNegation(m1)); - - Matcher<double> m2 = NanSensitiveDoubleEq(0.5); - EXPECT_EQ("is approximately 0.5", Describe(m2)); - EXPECT_EQ("isn't approximately 0.5", DescribeNegation(m2)); - - Matcher<double> m3 = NanSensitiveDoubleEq(nan1_); - EXPECT_EQ("is NaN", Describe(m3)); - EXPECT_EQ("isn't NaN", DescribeNegation(m3)); -} - -// Instantiate FloatingPointTest for testing floats with a user-specified -// max absolute error. -typedef FloatingPointNearTest<double> DoubleNearTest; - -TEST_F(DoubleNearTest, DoubleNearMatches) { - TestNearMatches(&DoubleNear); -} - -TEST_F(DoubleNearTest, NanSensitiveDoubleNearApproximatelyMatchesDoubles) { - TestNearMatches(&NanSensitiveDoubleNear); -} - -TEST_F(DoubleNearTest, DoubleNearCanDescribeSelf) { - Matcher<double> m1 = DoubleNear(2.0, 0.5); - EXPECT_EQ("is approximately 2 (absolute error <= 0.5)", Describe(m1)); - EXPECT_EQ( - "isn't approximately 2 (absolute error > 0.5)", DescribeNegation(m1)); - - Matcher<double> m2 = DoubleNear(0.5, 0.5); - EXPECT_EQ("is approximately 0.5 (absolute error <= 0.5)", Describe(m2)); - EXPECT_EQ( - "isn't approximately 0.5 (absolute error > 0.5)", DescribeNegation(m2)); - - Matcher<double> m3 = DoubleNear(nan1_, 0.0); - EXPECT_EQ("never matches", Describe(m3)); - EXPECT_EQ("is anything", DescribeNegation(m3)); -} - -TEST_F(DoubleNearTest, ExplainsResultWhenMatchFails) { - EXPECT_EQ("", Explain(DoubleNear(2.0, 0.1), 2.05)); - EXPECT_EQ("which is 0.2 from 2", Explain(DoubleNear(2.0, 0.1), 2.2)); - EXPECT_EQ("which is -0.3 from 2", Explain(DoubleNear(2.0, 0.1), 1.7)); - - const std::string explanation = - Explain(DoubleNear(2.1, 1e-10), 2.1 + 1.2e-10); - // Different C++ implementations may print floating-point numbers - // slightly differently. - EXPECT_TRUE(explanation == "which is 1.2e-10 from 2.1" || // GCC - explanation == "which is 1.2e-010 from 2.1") // MSVC - << " where explanation is \"" << explanation << "\"."; -} - -TEST_F(DoubleNearTest, NanSensitiveDoubleNearCanDescribeSelf) { - Matcher<double> m1 = NanSensitiveDoubleNear(2.0, 0.5); - EXPECT_EQ("is approximately 2 (absolute error <= 0.5)", Describe(m1)); - EXPECT_EQ( - "isn't approximately 2 (absolute error > 0.5)", DescribeNegation(m1)); - - Matcher<double> m2 = NanSensitiveDoubleNear(0.5, 0.5); - EXPECT_EQ("is approximately 0.5 (absolute error <= 0.5)", Describe(m2)); - EXPECT_EQ( - "isn't approximately 0.5 (absolute error > 0.5)", DescribeNegation(m2)); - - Matcher<double> m3 = NanSensitiveDoubleNear(nan1_, 0.1); - EXPECT_EQ("is NaN", Describe(m3)); - EXPECT_EQ("isn't NaN", DescribeNegation(m3)); -} - -TEST_F(DoubleNearTest, DoubleNearCannotMatchNaN) { - // DoubleNear never matches NaN. - Matcher<double> m = DoubleNear(ParentType::nan1_, 0.1); - EXPECT_FALSE(m.Matches(nan1_)); - EXPECT_FALSE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST_F(DoubleNearTest, NanSensitiveDoubleNearCanMatchNaN) { - // NanSensitiveDoubleNear will match NaN. - Matcher<double> m = NanSensitiveDoubleNear(nan1_, 0.1); - EXPECT_TRUE(m.Matches(nan1_)); - EXPECT_TRUE(m.Matches(nan2_)); - EXPECT_FALSE(m.Matches(1.0)); -} - -TEST(PointeeTest, RawPointer) { - const Matcher<int*> m = Pointee(Ge(0)); - - int n = 1; - EXPECT_TRUE(m.Matches(&n)); - n = -1; - EXPECT_FALSE(m.Matches(&n)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointeeTest, RawPointerToConst) { - const Matcher<const double*> m = Pointee(Ge(0)); - - double x = 1; - EXPECT_TRUE(m.Matches(&x)); - x = -1; - EXPECT_FALSE(m.Matches(&x)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointeeTest, ReferenceToConstRawPointer) { - const Matcher<int* const &> m = Pointee(Ge(0)); - - int n = 1; - EXPECT_TRUE(m.Matches(&n)); - n = -1; - EXPECT_FALSE(m.Matches(&n)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointeeTest, ReferenceToNonConstRawPointer) { - const Matcher<double* &> m = Pointee(Ge(0)); - - double x = 1.0; - double* p = &x; - EXPECT_TRUE(m.Matches(p)); - x = -1; - EXPECT_FALSE(m.Matches(p)); - p = nullptr; - EXPECT_FALSE(m.Matches(p)); -} - -TEST(PointeeTest, SmartPointer) { - const Matcher<std::unique_ptr<int>> m = Pointee(Ge(0)); - - std::unique_ptr<int> n(new int(1)); - EXPECT_TRUE(m.Matches(n)); -} - -TEST(PointeeTest, SmartPointerToConst) { - const Matcher<std::unique_ptr<const int>> m = Pointee(Ge(0)); - - // There's no implicit conversion from unique_ptr<int> to const - // unique_ptr<const int>, so we must pass a unique_ptr<const int> into the - // matcher. - std::unique_ptr<const int> n(new int(1)); - EXPECT_TRUE(m.Matches(n)); -} - -TEST(PointerTest, RawPointer) { - int n = 1; - const Matcher<int*> m = Pointer(Eq(&n)); - - EXPECT_TRUE(m.Matches(&n)); - - int* p = nullptr; - EXPECT_FALSE(m.Matches(p)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointerTest, RawPointerToConst) { - int n = 1; - const Matcher<const int*> m = Pointer(Eq(&n)); - - EXPECT_TRUE(m.Matches(&n)); - - int* p = nullptr; - EXPECT_FALSE(m.Matches(p)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointerTest, SmartPointer) { - std::unique_ptr<int> n(new int(10)); - int* raw_n = n.get(); - const Matcher<std::unique_ptr<int>> m = Pointer(Eq(raw_n)); - - EXPECT_TRUE(m.Matches(n)); -} - -TEST(PointerTest, SmartPointerToConst) { - std::unique_ptr<const int> n(new int(10)); - const int* raw_n = n.get(); - const Matcher<std::unique_ptr<const int>> m = Pointer(Eq(raw_n)); - - // There's no implicit conversion from unique_ptr<int> to const - // unique_ptr<const int>, so we must pass a unique_ptr<const int> into the - // matcher. - std::unique_ptr<const int> p(new int(10)); - EXPECT_FALSE(m.Matches(p)); -} - -TEST(AddressTest, NonConst) { - int n = 1; - const Matcher<int> m = Address(Eq(&n)); - - EXPECT_TRUE(m.Matches(n)); - - int other = 5; - - EXPECT_FALSE(m.Matches(other)); - - int& n_ref = n; - - EXPECT_TRUE(m.Matches(n_ref)); -} - -TEST(AddressTest, Const) { - const int n = 1; - const Matcher<int> m = Address(Eq(&n)); - - EXPECT_TRUE(m.Matches(n)); - - int other = 5; - - EXPECT_FALSE(m.Matches(other)); -} - -TEST(AddressTest, MatcherDoesntCopy) { - std::unique_ptr<int> n(new int(1)); - const Matcher<std::unique_ptr<int>> m = Address(Eq(&n)); - - EXPECT_TRUE(m.Matches(n)); -} - -TEST(AddressTest, Describe) { - Matcher<int> matcher = Address(_); - EXPECT_EQ("has address that is anything", Describe(matcher)); - EXPECT_EQ("does not have address that is anything", - DescribeNegation(matcher)); -} - -MATCHER_P(FieldIIs, inner_matcher, "") { - return ExplainMatchResult(inner_matcher, arg.i, result_listener); -} - -#if GTEST_HAS_RTTI -TEST(WhenDynamicCastToTest, SameType) { - Derived derived; - derived.i = 4; - - // Right type. A pointer is passed down. - Base* as_base_ptr = &derived; - EXPECT_THAT(as_base_ptr, WhenDynamicCastTo<Derived*>(Not(IsNull()))); - EXPECT_THAT(as_base_ptr, WhenDynamicCastTo<Derived*>(Pointee(FieldIIs(4)))); - EXPECT_THAT(as_base_ptr, - Not(WhenDynamicCastTo<Derived*>(Pointee(FieldIIs(5))))); -} - -TEST(WhenDynamicCastToTest, WrongTypes) { - Base base; - Derived derived; - OtherDerived other_derived; - - // Wrong types. NULL is passed. - EXPECT_THAT(&base, Not(WhenDynamicCastTo<Derived*>(Pointee(_)))); - EXPECT_THAT(&base, WhenDynamicCastTo<Derived*>(IsNull())); - Base* as_base_ptr = &derived; - EXPECT_THAT(as_base_ptr, Not(WhenDynamicCastTo<OtherDerived*>(Pointee(_)))); - EXPECT_THAT(as_base_ptr, WhenDynamicCastTo<OtherDerived*>(IsNull())); - as_base_ptr = &other_derived; - EXPECT_THAT(as_base_ptr, Not(WhenDynamicCastTo<Derived*>(Pointee(_)))); - EXPECT_THAT(as_base_ptr, WhenDynamicCastTo<Derived*>(IsNull())); -} - -TEST(WhenDynamicCastToTest, AlreadyNull) { - // Already NULL. - Base* as_base_ptr = nullptr; - EXPECT_THAT(as_base_ptr, WhenDynamicCastTo<Derived*>(IsNull())); -} - -struct AmbiguousCastTypes { - class VirtualDerived : public virtual Base {}; - class DerivedSub1 : public VirtualDerived {}; - class DerivedSub2 : public VirtualDerived {}; - class ManyDerivedInHierarchy : public DerivedSub1, public DerivedSub2 {}; -}; - -TEST(WhenDynamicCastToTest, AmbiguousCast) { - AmbiguousCastTypes::DerivedSub1 sub1; - AmbiguousCastTypes::ManyDerivedInHierarchy many_derived; - // Multiply derived from Base. dynamic_cast<> returns NULL. - Base* as_base_ptr = - static_cast<AmbiguousCastTypes::DerivedSub1*>(&many_derived); - EXPECT_THAT(as_base_ptr, - WhenDynamicCastTo<AmbiguousCastTypes::VirtualDerived*>(IsNull())); - as_base_ptr = &sub1; - EXPECT_THAT( - as_base_ptr, - WhenDynamicCastTo<AmbiguousCastTypes::VirtualDerived*>(Not(IsNull()))); -} - -TEST(WhenDynamicCastToTest, Describe) { - Matcher<Base*> matcher = WhenDynamicCastTo<Derived*>(Pointee(_)); - const std::string prefix = - "when dynamic_cast to " + internal::GetTypeName<Derived*>() + ", "; - EXPECT_EQ(prefix + "points to a value that is anything", Describe(matcher)); - EXPECT_EQ(prefix + "does not point to a value that is anything", - DescribeNegation(matcher)); -} - -TEST(WhenDynamicCastToTest, Explain) { - Matcher<Base*> matcher = WhenDynamicCastTo<Derived*>(Pointee(_)); - Base* null = nullptr; - EXPECT_THAT(Explain(matcher, null), HasSubstr("NULL")); - Derived derived; - EXPECT_TRUE(matcher.Matches(&derived)); - EXPECT_THAT(Explain(matcher, &derived), HasSubstr("which points to ")); - - // With references, the matcher itself can fail. Test for that one. - Matcher<const Base&> ref_matcher = WhenDynamicCastTo<const OtherDerived&>(_); - EXPECT_THAT(Explain(ref_matcher, derived), - HasSubstr("which cannot be dynamic_cast")); -} - -TEST(WhenDynamicCastToTest, GoodReference) { - Derived derived; - derived.i = 4; - Base& as_base_ref = derived; - EXPECT_THAT(as_base_ref, WhenDynamicCastTo<const Derived&>(FieldIIs(4))); - EXPECT_THAT(as_base_ref, WhenDynamicCastTo<const Derived&>(Not(FieldIIs(5)))); -} - -TEST(WhenDynamicCastToTest, BadReference) { - Derived derived; - Base& as_base_ref = derived; - EXPECT_THAT(as_base_ref, Not(WhenDynamicCastTo<const OtherDerived&>(_))); -} -#endif // GTEST_HAS_RTTI - -// Minimal const-propagating pointer. -template <typename T> -class ConstPropagatingPtr { - public: - typedef T element_type; - - ConstPropagatingPtr() : val_() {} - explicit ConstPropagatingPtr(T* t) : val_(t) {} - ConstPropagatingPtr(const ConstPropagatingPtr& other) : val_(other.val_) {} - - T* get() { return val_; } - T& operator*() { return *val_; } - // Most smart pointers return non-const T* and T& from the next methods. - const T* get() const { return val_; } - const T& operator*() const { return *val_; } - - private: - T* val_; -}; - -TEST(PointeeTest, WorksWithConstPropagatingPointers) { - const Matcher< ConstPropagatingPtr<int> > m = Pointee(Lt(5)); - int three = 3; - const ConstPropagatingPtr<int> co(&three); - ConstPropagatingPtr<int> o(&three); - EXPECT_TRUE(m.Matches(o)); - EXPECT_TRUE(m.Matches(co)); - *o = 6; - EXPECT_FALSE(m.Matches(o)); - EXPECT_FALSE(m.Matches(ConstPropagatingPtr<int>())); -} - -TEST(PointeeTest, NeverMatchesNull) { - const Matcher<const char*> m = Pointee(_); - EXPECT_FALSE(m.Matches(nullptr)); -} - -// Tests that we can write Pointee(value) instead of Pointee(Eq(value)). -TEST(PointeeTest, MatchesAgainstAValue) { - const Matcher<int*> m = Pointee(5); - - int n = 5; - EXPECT_TRUE(m.Matches(&n)); - n = -1; - EXPECT_FALSE(m.Matches(&n)); - EXPECT_FALSE(m.Matches(nullptr)); -} - -TEST(PointeeTest, CanDescribeSelf) { - const Matcher<int*> m = Pointee(Gt(3)); - EXPECT_EQ("points to a value that is > 3", Describe(m)); - EXPECT_EQ("does not point to a value that is > 3", - DescribeNegation(m)); -} - -TEST(PointeeTest, CanExplainMatchResult) { - const Matcher<const std::string*> m = Pointee(StartsWith("Hi")); - - EXPECT_EQ("", Explain(m, static_cast<const std::string*>(nullptr))); - - const Matcher<long*> m2 = Pointee(GreaterThan(1)); // NOLINT - long n = 3; // NOLINT - EXPECT_EQ("which points to 3" + OfType("long") + ", which is 2 more than 1", - Explain(m2, &n)); -} - -TEST(PointeeTest, AlwaysExplainsPointee) { - const Matcher<int*> m = Pointee(0); - int n = 42; - EXPECT_EQ("which points to 42" + OfType("int"), Explain(m, &n)); -} - -// An uncopyable class. -class Uncopyable { - public: - Uncopyable() : value_(-1) {} - explicit Uncopyable(int a_value) : value_(a_value) {} - - int value() const { return value_; } - void set_value(int i) { value_ = i; } - - private: - int value_; - GTEST_DISALLOW_COPY_AND_ASSIGN_(Uncopyable); -}; - -// Returns true if and only if x.value() is positive. -bool ValueIsPositive(const Uncopyable& x) { return x.value() > 0; } - -MATCHER_P(UncopyableIs, inner_matcher, "") { - return ExplainMatchResult(inner_matcher, arg.value(), result_listener); -} - -// A user-defined struct for testing Field(). -struct AStruct { - AStruct() : x(0), y(1.0), z(5), p(nullptr) {} - AStruct(const AStruct& rhs) - : x(rhs.x), y(rhs.y), z(rhs.z.value()), p(rhs.p) {} - - int x; // A non-const field. - const double y; // A const field. - Uncopyable z; // An uncopyable field. - const char* p; // A pointer field. -}; - -// A derived struct for testing Field(). -struct DerivedStruct : public AStruct { - char ch; -}; - -// Tests that Field(&Foo::field, ...) works when field is non-const. -TEST(FieldTest, WorksForNonConstField) { - Matcher<AStruct> m = Field(&AStruct::x, Ge(0)); - Matcher<AStruct> m_with_name = Field("x", &AStruct::x, Ge(0)); - - AStruct a; - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - a.x = -1; - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Field(&Foo::field, ...) works when field is const. -TEST(FieldTest, WorksForConstField) { - AStruct a; - - Matcher<AStruct> m = Field(&AStruct::y, Ge(0.0)); - Matcher<AStruct> m_with_name = Field("y", &AStruct::y, Ge(0.0)); - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - m = Field(&AStruct::y, Le(0.0)); - m_with_name = Field("y", &AStruct::y, Le(0.0)); - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Field(&Foo::field, ...) works when field is not copyable. -TEST(FieldTest, WorksForUncopyableField) { - AStruct a; - - Matcher<AStruct> m = Field(&AStruct::z, Truly(ValueIsPositive)); - EXPECT_TRUE(m.Matches(a)); - m = Field(&AStruct::z, Not(Truly(ValueIsPositive))); - EXPECT_FALSE(m.Matches(a)); -} - -// Tests that Field(&Foo::field, ...) works when field is a pointer. -TEST(FieldTest, WorksForPointerField) { - // Matching against NULL. - Matcher<AStruct> m = Field(&AStruct::p, static_cast<const char*>(nullptr)); - AStruct a; - EXPECT_TRUE(m.Matches(a)); - a.p = "hi"; - EXPECT_FALSE(m.Matches(a)); - - // Matching a pointer that is not NULL. - m = Field(&AStruct::p, StartsWith("hi")); - a.p = "hill"; - EXPECT_TRUE(m.Matches(a)); - a.p = "hole"; - EXPECT_FALSE(m.Matches(a)); -} - -// Tests that Field() works when the object is passed by reference. -TEST(FieldTest, WorksForByRefArgument) { - Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - EXPECT_TRUE(m.Matches(a)); - a.x = -1; - EXPECT_FALSE(m.Matches(a)); -} - -// Tests that Field(&Foo::field, ...) works when the argument's type -// is a sub-type of Foo. -TEST(FieldTest, WorksForArgumentOfSubType) { - // Note that the matcher expects DerivedStruct but we say AStruct - // inside Field(). - Matcher<const DerivedStruct&> m = Field(&AStruct::x, Ge(0)); - - DerivedStruct d; - EXPECT_TRUE(m.Matches(d)); - d.x = -1; - EXPECT_FALSE(m.Matches(d)); -} - -// Tests that Field(&Foo::field, m) works when field's type and m's -// argument type are compatible but not the same. -TEST(FieldTest, WorksForCompatibleMatcherType) { - // The field is an int, but the inner matcher expects a signed char. - Matcher<const AStruct&> m = Field(&AStruct::x, - Matcher<signed char>(Ge(0))); - - AStruct a; - EXPECT_TRUE(m.Matches(a)); - a.x = -1; - EXPECT_FALSE(m.Matches(a)); -} - -// Tests that Field() can describe itself. -TEST(FieldTest, CanDescribeSelf) { - Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0)); - - EXPECT_EQ("is an object whose given field is >= 0", Describe(m)); - EXPECT_EQ("is an object whose given field isn't >= 0", DescribeNegation(m)); -} - -TEST(FieldTest, CanDescribeSelfWithFieldName) { - Matcher<const AStruct&> m = Field("field_name", &AStruct::x, Ge(0)); - - EXPECT_EQ("is an object whose field `field_name` is >= 0", Describe(m)); - EXPECT_EQ("is an object whose field `field_name` isn't >= 0", - DescribeNegation(m)); -} - -// Tests that Field() can explain the match result. -TEST(FieldTest, CanExplainMatchResult) { - Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - a.x = 1; - EXPECT_EQ("whose given field is 1" + OfType("int"), Explain(m, a)); - - m = Field(&AStruct::x, GreaterThan(0)); - EXPECT_EQ( - "whose given field is 1" + OfType("int") + ", which is 1 more than 0", - Explain(m, a)); -} - -TEST(FieldTest, CanExplainMatchResultWithFieldName) { - Matcher<const AStruct&> m = Field("field_name", &AStruct::x, Ge(0)); - - AStruct a; - a.x = 1; - EXPECT_EQ("whose field `field_name` is 1" + OfType("int"), Explain(m, a)); - - m = Field("field_name", &AStruct::x, GreaterThan(0)); - EXPECT_EQ("whose field `field_name` is 1" + OfType("int") + - ", which is 1 more than 0", - Explain(m, a)); -} - -// Tests that Field() works when the argument is a pointer to const. -TEST(FieldForPointerTest, WorksForPointerToConst) { - Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - EXPECT_TRUE(m.Matches(&a)); - a.x = -1; - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Field() works when the argument is a pointer to non-const. -TEST(FieldForPointerTest, WorksForPointerToNonConst) { - Matcher<AStruct*> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - EXPECT_TRUE(m.Matches(&a)); - a.x = -1; - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Field() works when the argument is a reference to a const pointer. -TEST(FieldForPointerTest, WorksForReferenceToConstPointer) { - Matcher<AStruct* const&> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - EXPECT_TRUE(m.Matches(&a)); - a.x = -1; - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Field() does not match the NULL pointer. -TEST(FieldForPointerTest, DoesNotMatchNull) { - Matcher<const AStruct*> m = Field(&AStruct::x, _); - EXPECT_FALSE(m.Matches(nullptr)); -} - -// Tests that Field(&Foo::field, ...) works when the argument's type -// is a sub-type of const Foo*. -TEST(FieldForPointerTest, WorksForArgumentOfSubType) { - // Note that the matcher expects DerivedStruct but we say AStruct - // inside Field(). - Matcher<DerivedStruct*> m = Field(&AStruct::x, Ge(0)); - - DerivedStruct d; - EXPECT_TRUE(m.Matches(&d)); - d.x = -1; - EXPECT_FALSE(m.Matches(&d)); -} - -// Tests that Field() can describe itself when used to match a pointer. -TEST(FieldForPointerTest, CanDescribeSelf) { - Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0)); - - EXPECT_EQ("is an object whose given field is >= 0", Describe(m)); - EXPECT_EQ("is an object whose given field isn't >= 0", DescribeNegation(m)); -} - -TEST(FieldForPointerTest, CanDescribeSelfWithFieldName) { - Matcher<const AStruct*> m = Field("field_name", &AStruct::x, Ge(0)); - - EXPECT_EQ("is an object whose field `field_name` is >= 0", Describe(m)); - EXPECT_EQ("is an object whose field `field_name` isn't >= 0", - DescribeNegation(m)); -} - -// Tests that Field() can explain the result of matching a pointer. -TEST(FieldForPointerTest, CanExplainMatchResult) { - Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0)); - - AStruct a; - a.x = 1; - EXPECT_EQ("", Explain(m, static_cast<const AStruct*>(nullptr))); - EXPECT_EQ("which points to an object whose given field is 1" + OfType("int"), - Explain(m, &a)); - - m = Field(&AStruct::x, GreaterThan(0)); - EXPECT_EQ("which points to an object whose given field is 1" + OfType("int") + - ", which is 1 more than 0", Explain(m, &a)); -} - -TEST(FieldForPointerTest, CanExplainMatchResultWithFieldName) { - Matcher<const AStruct*> m = Field("field_name", &AStruct::x, Ge(0)); - - AStruct a; - a.x = 1; - EXPECT_EQ("", Explain(m, static_cast<const AStruct*>(nullptr))); - EXPECT_EQ( - "which points to an object whose field `field_name` is 1" + OfType("int"), - Explain(m, &a)); - - m = Field("field_name", &AStruct::x, GreaterThan(0)); - EXPECT_EQ("which points to an object whose field `field_name` is 1" + - OfType("int") + ", which is 1 more than 0", - Explain(m, &a)); -} - -// A user-defined class for testing Property(). -class AClass { - public: - AClass() : n_(0) {} - - // A getter that returns a non-reference. - int n() const { return n_; } - - void set_n(int new_n) { n_ = new_n; } - - // A getter that returns a reference to const. - const std::string& s() const { return s_; } - - const std::string& s_ref() const & { return s_; } - - void set_s(const std::string& new_s) { s_ = new_s; } - - // A getter that returns a reference to non-const. - double& x() const { return x_; } - - private: - int n_; - std::string s_; - - static double x_; -}; - -double AClass::x_ = 0.0; - -// A derived class for testing Property(). -class DerivedClass : public AClass { - public: - int k() const { return k_; } - private: - int k_; -}; - -// Tests that Property(&Foo::property, ...) works when property() -// returns a non-reference. -TEST(PropertyTest, WorksForNonReferenceProperty) { - Matcher<const AClass&> m = Property(&AClass::n, Ge(0)); - Matcher<const AClass&> m_with_name = Property("n", &AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - - a.set_n(-1); - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Property(&Foo::property, ...) works when property() -// returns a reference to const. -TEST(PropertyTest, WorksForReferenceToConstProperty) { - Matcher<const AClass&> m = Property(&AClass::s, StartsWith("hi")); - Matcher<const AClass&> m_with_name = - Property("s", &AClass::s, StartsWith("hi")); - - AClass a; - a.set_s("hill"); - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - - a.set_s("hole"); - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Property(&Foo::property, ...) works when property() is -// ref-qualified. -TEST(PropertyTest, WorksForRefQualifiedProperty) { - Matcher<const AClass&> m = Property(&AClass::s_ref, StartsWith("hi")); - Matcher<const AClass&> m_with_name = - Property("s", &AClass::s_ref, StartsWith("hi")); - - AClass a; - a.set_s("hill"); - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - - a.set_s("hole"); - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Property(&Foo::property, ...) works when property() -// returns a reference to non-const. -TEST(PropertyTest, WorksForReferenceToNonConstProperty) { - double x = 0.0; - AClass a; - - Matcher<const AClass&> m = Property(&AClass::x, Ref(x)); - EXPECT_FALSE(m.Matches(a)); - - m = Property(&AClass::x, Not(Ref(x))); - EXPECT_TRUE(m.Matches(a)); -} - -// Tests that Property(&Foo::property, ...) works when the argument is -// passed by value. -TEST(PropertyTest, WorksForByValueArgument) { - Matcher<AClass> m = Property(&AClass::s, StartsWith("hi")); - - AClass a; - a.set_s("hill"); - EXPECT_TRUE(m.Matches(a)); - - a.set_s("hole"); - EXPECT_FALSE(m.Matches(a)); -} - -// Tests that Property(&Foo::property, ...) works when the argument's -// type is a sub-type of Foo. -TEST(PropertyTest, WorksForArgumentOfSubType) { - // The matcher expects a DerivedClass, but inside the Property() we - // say AClass. - Matcher<const DerivedClass&> m = Property(&AClass::n, Ge(0)); - - DerivedClass d; - d.set_n(1); - EXPECT_TRUE(m.Matches(d)); - - d.set_n(-1); - EXPECT_FALSE(m.Matches(d)); -} - -// Tests that Property(&Foo::property, m) works when property()'s type -// and m's argument type are compatible but different. -TEST(PropertyTest, WorksForCompatibleMatcherType) { - // n() returns an int but the inner matcher expects a signed char. - Matcher<const AClass&> m = Property(&AClass::n, - Matcher<signed char>(Ge(0))); - - Matcher<const AClass&> m_with_name = - Property("n", &AClass::n, Matcher<signed char>(Ge(0))); - - AClass a; - EXPECT_TRUE(m.Matches(a)); - EXPECT_TRUE(m_with_name.Matches(a)); - a.set_n(-1); - EXPECT_FALSE(m.Matches(a)); - EXPECT_FALSE(m_with_name.Matches(a)); -} - -// Tests that Property() can describe itself. -TEST(PropertyTest, CanDescribeSelf) { - Matcher<const AClass&> m = Property(&AClass::n, Ge(0)); - - EXPECT_EQ("is an object whose given property is >= 0", Describe(m)); - EXPECT_EQ("is an object whose given property isn't >= 0", - DescribeNegation(m)); -} - -TEST(PropertyTest, CanDescribeSelfWithPropertyName) { - Matcher<const AClass&> m = Property("fancy_name", &AClass::n, Ge(0)); - - EXPECT_EQ("is an object whose property `fancy_name` is >= 0", Describe(m)); - EXPECT_EQ("is an object whose property `fancy_name` isn't >= 0", - DescribeNegation(m)); -} - -// Tests that Property() can explain the match result. -TEST(PropertyTest, CanExplainMatchResult) { - Matcher<const AClass&> m = Property(&AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_EQ("whose given property is 1" + OfType("int"), Explain(m, a)); - - m = Property(&AClass::n, GreaterThan(0)); - EXPECT_EQ( - "whose given property is 1" + OfType("int") + ", which is 1 more than 0", - Explain(m, a)); -} - -TEST(PropertyTest, CanExplainMatchResultWithPropertyName) { - Matcher<const AClass&> m = Property("fancy_name", &AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_EQ("whose property `fancy_name` is 1" + OfType("int"), Explain(m, a)); - - m = Property("fancy_name", &AClass::n, GreaterThan(0)); - EXPECT_EQ("whose property `fancy_name` is 1" + OfType("int") + - ", which is 1 more than 0", - Explain(m, a)); -} - -// Tests that Property() works when the argument is a pointer to const. -TEST(PropertyForPointerTest, WorksForPointerToConst) { - Matcher<const AClass*> m = Property(&AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_TRUE(m.Matches(&a)); - - a.set_n(-1); - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Property() works when the argument is a pointer to non-const. -TEST(PropertyForPointerTest, WorksForPointerToNonConst) { - Matcher<AClass*> m = Property(&AClass::s, StartsWith("hi")); - - AClass a; - a.set_s("hill"); - EXPECT_TRUE(m.Matches(&a)); - - a.set_s("hole"); - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Property() works when the argument is a reference to a -// const pointer. -TEST(PropertyForPointerTest, WorksForReferenceToConstPointer) { - Matcher<AClass* const&> m = Property(&AClass::s, StartsWith("hi")); - - AClass a; - a.set_s("hill"); - EXPECT_TRUE(m.Matches(&a)); - - a.set_s("hole"); - EXPECT_FALSE(m.Matches(&a)); -} - -// Tests that Property() does not match the NULL pointer. -TEST(PropertyForPointerTest, WorksForReferenceToNonConstProperty) { - Matcher<const AClass*> m = Property(&AClass::x, _); - EXPECT_FALSE(m.Matches(nullptr)); -} - -// Tests that Property(&Foo::property, ...) works when the argument's -// type is a sub-type of const Foo*. -TEST(PropertyForPointerTest, WorksForArgumentOfSubType) { - // The matcher expects a DerivedClass, but inside the Property() we - // say AClass. - Matcher<const DerivedClass*> m = Property(&AClass::n, Ge(0)); - - DerivedClass d; - d.set_n(1); - EXPECT_TRUE(m.Matches(&d)); - - d.set_n(-1); - EXPECT_FALSE(m.Matches(&d)); -} - -// Tests that Property() can describe itself when used to match a pointer. -TEST(PropertyForPointerTest, CanDescribeSelf) { - Matcher<const AClass*> m = Property(&AClass::n, Ge(0)); - - EXPECT_EQ("is an object whose given property is >= 0", Describe(m)); - EXPECT_EQ("is an object whose given property isn't >= 0", - DescribeNegation(m)); -} - -TEST(PropertyForPointerTest, CanDescribeSelfWithPropertyDescription) { - Matcher<const AClass*> m = Property("fancy_name", &AClass::n, Ge(0)); - - EXPECT_EQ("is an object whose property `fancy_name` is >= 0", Describe(m)); - EXPECT_EQ("is an object whose property `fancy_name` isn't >= 0", - DescribeNegation(m)); -} - -// Tests that Property() can explain the result of matching a pointer. -TEST(PropertyForPointerTest, CanExplainMatchResult) { - Matcher<const AClass*> m = Property(&AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_EQ("", Explain(m, static_cast<const AClass*>(nullptr))); - EXPECT_EQ( - "which points to an object whose given property is 1" + OfType("int"), - Explain(m, &a)); - - m = Property(&AClass::n, GreaterThan(0)); - EXPECT_EQ("which points to an object whose given property is 1" + - OfType("int") + ", which is 1 more than 0", - Explain(m, &a)); -} - -TEST(PropertyForPointerTest, CanExplainMatchResultWithPropertyName) { - Matcher<const AClass*> m = Property("fancy_name", &AClass::n, Ge(0)); - - AClass a; - a.set_n(1); - EXPECT_EQ("", Explain(m, static_cast<const AClass*>(nullptr))); - EXPECT_EQ("which points to an object whose property `fancy_name` is 1" + - OfType("int"), - Explain(m, &a)); - - m = Property("fancy_name", &AClass::n, GreaterThan(0)); - EXPECT_EQ("which points to an object whose property `fancy_name` is 1" + - OfType("int") + ", which is 1 more than 0", - Explain(m, &a)); -} - -// Tests ResultOf. - -// Tests that ResultOf(f, ...) compiles and works as expected when f is a -// function pointer. -std::string IntToStringFunction(int input) { - return input == 1 ? "foo" : "bar"; -} - -TEST(ResultOfTest, WorksForFunctionPointers) { - Matcher<int> matcher = ResultOf(&IntToStringFunction, Eq(std::string("foo"))); - - EXPECT_TRUE(matcher.Matches(1)); - EXPECT_FALSE(matcher.Matches(2)); -} - -// Tests that ResultOf() can describe itself. -TEST(ResultOfTest, CanDescribeItself) { - Matcher<int> matcher = ResultOf(&IntToStringFunction, StrEq("foo")); - - EXPECT_EQ("is mapped by the given callable to a value that " - "is equal to \"foo\"", Describe(matcher)); - EXPECT_EQ("is mapped by the given callable to a value that " - "isn't equal to \"foo\"", DescribeNegation(matcher)); -} - -// Tests that ResultOf() can explain the match result. -int IntFunction(int input) { return input == 42 ? 80 : 90; } - -TEST(ResultOfTest, CanExplainMatchResult) { - Matcher<int> matcher = ResultOf(&IntFunction, Ge(85)); - EXPECT_EQ("which is mapped by the given callable to 90" + OfType("int"), - Explain(matcher, 36)); - - matcher = ResultOf(&IntFunction, GreaterThan(85)); - EXPECT_EQ("which is mapped by the given callable to 90" + OfType("int") + - ", which is 5 more than 85", Explain(matcher, 36)); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f(x) -// returns a non-reference. -TEST(ResultOfTest, WorksForNonReferenceResults) { - Matcher<int> matcher = ResultOf(&IntFunction, Eq(80)); - - EXPECT_TRUE(matcher.Matches(42)); - EXPECT_FALSE(matcher.Matches(36)); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f(x) -// returns a reference to non-const. -double& DoubleFunction(double& input) { return input; } // NOLINT - -Uncopyable& RefUncopyableFunction(Uncopyable& obj) { // NOLINT - return obj; -} - -TEST(ResultOfTest, WorksForReferenceToNonConstResults) { - double x = 3.14; - double x2 = x; - Matcher<double&> matcher = ResultOf(&DoubleFunction, Ref(x)); - - EXPECT_TRUE(matcher.Matches(x)); - EXPECT_FALSE(matcher.Matches(x2)); - - // Test that ResultOf works with uncopyable objects - Uncopyable obj(0); - Uncopyable obj2(0); - Matcher<Uncopyable&> matcher2 = - ResultOf(&RefUncopyableFunction, Ref(obj)); - - EXPECT_TRUE(matcher2.Matches(obj)); - EXPECT_FALSE(matcher2.Matches(obj2)); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f(x) -// returns a reference to const. -const std::string& StringFunction(const std::string& input) { return input; } - -TEST(ResultOfTest, WorksForReferenceToConstResults) { - std::string s = "foo"; - std::string s2 = s; - Matcher<const std::string&> matcher = ResultOf(&StringFunction, Ref(s)); - - EXPECT_TRUE(matcher.Matches(s)); - EXPECT_FALSE(matcher.Matches(s2)); -} - -// Tests that ResultOf(f, m) works when f(x) and m's -// argument types are compatible but different. -TEST(ResultOfTest, WorksForCompatibleMatcherTypes) { - // IntFunction() returns int but the inner matcher expects a signed char. - Matcher<int> matcher = ResultOf(IntFunction, Matcher<signed char>(Ge(85))); - - EXPECT_TRUE(matcher.Matches(36)); - EXPECT_FALSE(matcher.Matches(42)); -} - -// Tests that the program aborts when ResultOf is passed -// a NULL function pointer. -TEST(ResultOfDeathTest, DiesOnNullFunctionPointers) { - EXPECT_DEATH_IF_SUPPORTED( - ResultOf(static_cast<std::string (*)(int dummy)>(nullptr), - Eq(std::string("foo"))), - "NULL function pointer is passed into ResultOf\\(\\)\\."); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f is a -// function reference. -TEST(ResultOfTest, WorksForFunctionReferences) { - Matcher<int> matcher = ResultOf(IntToStringFunction, StrEq("foo")); - EXPECT_TRUE(matcher.Matches(1)); - EXPECT_FALSE(matcher.Matches(2)); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f is a -// function object. -struct Functor { - std::string operator()(int input) const { - return IntToStringFunction(input); - } -}; - -TEST(ResultOfTest, WorksForFunctors) { - Matcher<int> matcher = ResultOf(Functor(), Eq(std::string("foo"))); - - EXPECT_TRUE(matcher.Matches(1)); - EXPECT_FALSE(matcher.Matches(2)); -} - -// Tests that ResultOf(f, ...) compiles and works as expected when f is a -// functor with more than one operator() defined. ResultOf() must work -// for each defined operator(). -struct PolymorphicFunctor { - typedef int result_type; - int operator()(int n) { return n; } - int operator()(const char* s) { return static_cast<int>(strlen(s)); } - std::string operator()(int *p) { return p ? "good ptr" : "null"; } -}; - -TEST(ResultOfTest, WorksForPolymorphicFunctors) { - Matcher<int> matcher_int = ResultOf(PolymorphicFunctor(), Ge(5)); - - EXPECT_TRUE(matcher_int.Matches(10)); - EXPECT_FALSE(matcher_int.Matches(2)); - - Matcher<const char*> matcher_string = ResultOf(PolymorphicFunctor(), Ge(5)); - - EXPECT_TRUE(matcher_string.Matches("long string")); - EXPECT_FALSE(matcher_string.Matches("shrt")); -} - -TEST(ResultOfTest, WorksForPolymorphicFunctorsIgnoringResultType) { - Matcher<int*> matcher = ResultOf(PolymorphicFunctor(), "good ptr"); - - int n = 0; - EXPECT_TRUE(matcher.Matches(&n)); - EXPECT_FALSE(matcher.Matches(nullptr)); -} - -TEST(ResultOfTest, WorksForLambdas) { - Matcher<int> matcher = ResultOf( - [](int str_len) { - return std::string(static_cast<size_t>(str_len), 'x'); - }, - "xxx"); - EXPECT_TRUE(matcher.Matches(3)); - EXPECT_FALSE(matcher.Matches(1)); -} - -TEST(ResultOfTest, WorksForNonCopyableArguments) { - Matcher<std::unique_ptr<int>> matcher = ResultOf( - [](const std::unique_ptr<int>& str_len) { - return std::string(static_cast<size_t>(*str_len), 'x'); - }, - "xxx"); - EXPECT_TRUE(matcher.Matches(std::unique_ptr<int>(new int(3)))); - EXPECT_FALSE(matcher.Matches(std::unique_ptr<int>(new int(1)))); -} - -const int* ReferencingFunction(const int& n) { return &n; } - -struct ReferencingFunctor { - typedef const int* result_type; - result_type operator()(const int& n) { return &n; } -}; - -TEST(ResultOfTest, WorksForReferencingCallables) { - const int n = 1; - const int n2 = 1; - Matcher<const int&> matcher2 = ResultOf(ReferencingFunction, Eq(&n)); - EXPECT_TRUE(matcher2.Matches(n)); - EXPECT_FALSE(matcher2.Matches(n2)); - - Matcher<const int&> matcher3 = ResultOf(ReferencingFunctor(), Eq(&n)); - EXPECT_TRUE(matcher3.Matches(n)); - EXPECT_FALSE(matcher3.Matches(n2)); -} - -class DivisibleByImpl { - public: - explicit DivisibleByImpl(int a_divider) : divider_(a_divider) {} - - // For testing using ExplainMatchResultTo() with polymorphic matchers. - template <typename T> - bool MatchAndExplain(const T& n, MatchResultListener* listener) const { - *listener << "which is " << (n % divider_) << " modulo " - << divider_; - return (n % divider_) == 0; - } - - void DescribeTo(ostream* os) const { - *os << "is divisible by " << divider_; - } - - void DescribeNegationTo(ostream* os) const { - *os << "is not divisible by " << divider_; - } - - void set_divider(int a_divider) { divider_ = a_divider; } - int divider() const { return divider_; } - - private: - int divider_; -}; - -PolymorphicMatcher<DivisibleByImpl> DivisibleBy(int n) { - return MakePolymorphicMatcher(DivisibleByImpl(n)); -} - -// Tests that when AllOf() fails, only the first failing matcher is -// asked to explain why. -TEST(ExplainMatchResultTest, AllOf_False_False) { - const Matcher<int> m = AllOf(DivisibleBy(4), DivisibleBy(3)); - EXPECT_EQ("which is 1 modulo 4", Explain(m, 5)); -} - -// Tests that when AllOf() fails, only the first failing matcher is -// asked to explain why. -TEST(ExplainMatchResultTest, AllOf_False_True) { - const Matcher<int> m = AllOf(DivisibleBy(4), DivisibleBy(3)); - EXPECT_EQ("which is 2 modulo 4", Explain(m, 6)); -} - -// Tests that when AllOf() fails, only the first failing matcher is -// asked to explain why. -TEST(ExplainMatchResultTest, AllOf_True_False) { - const Matcher<int> m = AllOf(Ge(1), DivisibleBy(3)); - EXPECT_EQ("which is 2 modulo 3", Explain(m, 5)); -} - -// Tests that when AllOf() succeeds, all matchers are asked to explain -// why. -TEST(ExplainMatchResultTest, AllOf_True_True) { - const Matcher<int> m = AllOf(DivisibleBy(2), DivisibleBy(3)); - EXPECT_EQ("which is 0 modulo 2, and which is 0 modulo 3", Explain(m, 6)); -} - -TEST(ExplainMatchResultTest, AllOf_True_True_2) { - const Matcher<int> m = AllOf(Ge(2), Le(3)); - EXPECT_EQ("", Explain(m, 2)); -} - -TEST(ExplainmatcherResultTest, MonomorphicMatcher) { - const Matcher<int> m = GreaterThan(5); - EXPECT_EQ("which is 1 more than 5", Explain(m, 6)); -} - -// The following two tests verify that values without a public copy -// ctor can be used as arguments to matchers like Eq(), Ge(), and etc -// with the help of ByRef(). - -class NotCopyable { - public: - explicit NotCopyable(int a_value) : value_(a_value) {} - - int value() const { return value_; } - - bool operator==(const NotCopyable& rhs) const { - return value() == rhs.value(); - } - - bool operator>=(const NotCopyable& rhs) const { - return value() >= rhs.value(); - } - private: - int value_; - - GTEST_DISALLOW_COPY_AND_ASSIGN_(NotCopyable); -}; - -TEST(ByRefTest, AllowsNotCopyableConstValueInMatchers) { - const NotCopyable const_value1(1); - const Matcher<const NotCopyable&> m = Eq(ByRef(const_value1)); - - const NotCopyable n1(1), n2(2); - EXPECT_TRUE(m.Matches(n1)); - EXPECT_FALSE(m.Matches(n2)); -} - -TEST(ByRefTest, AllowsNotCopyableValueInMatchers) { - NotCopyable value2(2); - const Matcher<NotCopyable&> m = Ge(ByRef(value2)); - - NotCopyable n1(1), n2(2); - EXPECT_FALSE(m.Matches(n1)); - EXPECT_TRUE(m.Matches(n2)); -} - -TEST(IsEmptyTest, ImplementsIsEmpty) { - vector<int> container; - EXPECT_THAT(container, IsEmpty()); - container.push_back(0); - EXPECT_THAT(container, Not(IsEmpty())); - container.push_back(1); - EXPECT_THAT(container, Not(IsEmpty())); -} - -TEST(IsEmptyTest, WorksWithString) { - std::string text; - EXPECT_THAT(text, IsEmpty()); - text = "foo"; - EXPECT_THAT(text, Not(IsEmpty())); - text = std::string("\0", 1); - EXPECT_THAT(text, Not(IsEmpty())); -} - -TEST(IsEmptyTest, CanDescribeSelf) { - Matcher<vector<int> > m = IsEmpty(); - EXPECT_EQ("is empty", Describe(m)); - EXPECT_EQ("isn't empty", DescribeNegation(m)); -} - -TEST(IsEmptyTest, ExplainsResult) { - Matcher<vector<int> > m = IsEmpty(); - vector<int> container; - EXPECT_EQ("", Explain(m, container)); - container.push_back(0); - EXPECT_EQ("whose size is 1", Explain(m, container)); -} - -TEST(IsEmptyTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(IsEmpty())); - helper.Call({}); -} - -TEST(IsTrueTest, IsTrueIsFalse) { - EXPECT_THAT(true, IsTrue()); - EXPECT_THAT(false, IsFalse()); - EXPECT_THAT(true, Not(IsFalse())); - EXPECT_THAT(false, Not(IsTrue())); - EXPECT_THAT(0, Not(IsTrue())); - EXPECT_THAT(0, IsFalse()); - EXPECT_THAT(nullptr, Not(IsTrue())); - EXPECT_THAT(nullptr, IsFalse()); - EXPECT_THAT(-1, IsTrue()); - EXPECT_THAT(-1, Not(IsFalse())); - EXPECT_THAT(1, IsTrue()); - EXPECT_THAT(1, Not(IsFalse())); - EXPECT_THAT(2, IsTrue()); - EXPECT_THAT(2, Not(IsFalse())); - int a = 42; - EXPECT_THAT(a, IsTrue()); - EXPECT_THAT(a, Not(IsFalse())); - EXPECT_THAT(&a, IsTrue()); - EXPECT_THAT(&a, Not(IsFalse())); - EXPECT_THAT(false, Not(IsTrue())); - EXPECT_THAT(true, Not(IsFalse())); - EXPECT_THAT(std::true_type(), IsTrue()); - EXPECT_THAT(std::true_type(), Not(IsFalse())); - EXPECT_THAT(std::false_type(), IsFalse()); - EXPECT_THAT(std::false_type(), Not(IsTrue())); - EXPECT_THAT(nullptr, Not(IsTrue())); - EXPECT_THAT(nullptr, IsFalse()); - std::unique_ptr<int> null_unique; - std::unique_ptr<int> nonnull_unique(new int(0)); - EXPECT_THAT(null_unique, Not(IsTrue())); - EXPECT_THAT(null_unique, IsFalse()); - EXPECT_THAT(nonnull_unique, IsTrue()); - EXPECT_THAT(nonnull_unique, Not(IsFalse())); -} - -TEST(SizeIsTest, ImplementsSizeIs) { - vector<int> container; - EXPECT_THAT(container, SizeIs(0)); - EXPECT_THAT(container, Not(SizeIs(1))); - container.push_back(0); - EXPECT_THAT(container, Not(SizeIs(0))); - EXPECT_THAT(container, SizeIs(1)); - container.push_back(0); - EXPECT_THAT(container, Not(SizeIs(0))); - EXPECT_THAT(container, SizeIs(2)); -} - -TEST(SizeIsTest, WorksWithMap) { - map<std::string, int> container; - EXPECT_THAT(container, SizeIs(0)); - EXPECT_THAT(container, Not(SizeIs(1))); - container.insert(make_pair("foo", 1)); - EXPECT_THAT(container, Not(SizeIs(0))); - EXPECT_THAT(container, SizeIs(1)); - container.insert(make_pair("bar", 2)); - EXPECT_THAT(container, Not(SizeIs(0))); - EXPECT_THAT(container, SizeIs(2)); -} - -TEST(SizeIsTest, WorksWithReferences) { - vector<int> container; - Matcher<const vector<int>&> m = SizeIs(1); - EXPECT_THAT(container, Not(m)); - container.push_back(0); - EXPECT_THAT(container, m); -} - -TEST(SizeIsTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(SizeIs(3))); - helper.Call(MakeUniquePtrs({1, 2, 3})); -} - -// SizeIs should work for any type that provides a size() member function. -// For example, a size_type member type should not need to be provided. -struct MinimalistCustomType { - int size() const { return 1; } -}; -TEST(SizeIsTest, WorksWithMinimalistCustomType) { - MinimalistCustomType container; - EXPECT_THAT(container, SizeIs(1)); - EXPECT_THAT(container, Not(SizeIs(0))); -} - -TEST(SizeIsTest, CanDescribeSelf) { - Matcher<vector<int> > m = SizeIs(2); - EXPECT_EQ("size is equal to 2", Describe(m)); - EXPECT_EQ("size isn't equal to 2", DescribeNegation(m)); -} - -TEST(SizeIsTest, ExplainsResult) { - Matcher<vector<int> > m1 = SizeIs(2); - Matcher<vector<int> > m2 = SizeIs(Lt(2u)); - Matcher<vector<int> > m3 = SizeIs(AnyOf(0, 3)); - Matcher<vector<int> > m4 = SizeIs(Gt(1u)); - vector<int> container; - EXPECT_EQ("whose size 0 doesn't match", Explain(m1, container)); - EXPECT_EQ("whose size 0 matches", Explain(m2, container)); - EXPECT_EQ("whose size 0 matches", Explain(m3, container)); - EXPECT_EQ("whose size 0 doesn't match", Explain(m4, container)); - container.push_back(0); - container.push_back(0); - EXPECT_EQ("whose size 2 matches", Explain(m1, container)); - EXPECT_EQ("whose size 2 doesn't match", Explain(m2, container)); - EXPECT_EQ("whose size 2 doesn't match", Explain(m3, container)); - EXPECT_EQ("whose size 2 matches", Explain(m4, container)); -} - -#if GTEST_HAS_TYPED_TEST -// Tests ContainerEq with different container types, and -// different element types. - -template <typename T> -class ContainerEqTest : public testing::Test {}; - -typedef testing::Types< - set<int>, - vector<size_t>, - multiset<size_t>, - list<int> > - ContainerEqTestTypes; - -TYPED_TEST_SUITE(ContainerEqTest, ContainerEqTestTypes); - -// Tests that the filled container is equal to itself. -TYPED_TEST(ContainerEqTest, EqualsSelf) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - TypeParam my_set(vals, vals + 6); - const Matcher<TypeParam> m = ContainerEq(my_set); - EXPECT_TRUE(m.Matches(my_set)); - EXPECT_EQ("", Explain(m, my_set)); -} - -// Tests that missing values are reported. -TYPED_TEST(ContainerEqTest, ValueMissing) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {2, 1, 8, 5}; - TypeParam my_set(vals, vals + 6); - TypeParam test_set(test_vals, test_vals + 4); - const Matcher<TypeParam> m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which doesn't have these expected elements: 3", - Explain(m, test_set)); -} - -// Tests that added values are reported. -TYPED_TEST(ContainerEqTest, ValueAdded) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 3, 5, 8, 46}; - TypeParam my_set(vals, vals + 6); - TypeParam test_set(test_vals, test_vals + 6); - const Matcher<const TypeParam&> m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which has these unexpected elements: 46", Explain(m, test_set)); -} - -// Tests that added and missing values are reported together. -TYPED_TEST(ContainerEqTest, ValueAddedAndRemoved) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 3, 8, 46}; - TypeParam my_set(vals, vals + 6); - TypeParam test_set(test_vals, test_vals + 5); - const Matcher<TypeParam> m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which has these unexpected elements: 46,\n" - "and doesn't have these expected elements: 5", - Explain(m, test_set)); -} - -// Tests duplicated value -- expect no explanation. -TYPED_TEST(ContainerEqTest, DuplicateDifference) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 3, 5, 8}; - TypeParam my_set(vals, vals + 6); - TypeParam test_set(test_vals, test_vals + 5); - const Matcher<const TypeParam&> m = ContainerEq(my_set); - // Depending on the container, match may be true or false - // But in any case there should be no explanation. - EXPECT_EQ("", Explain(m, test_set)); -} -#endif // GTEST_HAS_TYPED_TEST - -// Tests that multiple missing values are reported. -// Using just vector here, so order is predictable. -TEST(ContainerEqExtraTest, MultipleValuesMissing) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {2, 1, 5}; - vector<int> my_set(vals, vals + 6); - vector<int> test_set(test_vals, test_vals + 3); - const Matcher<vector<int> > m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which doesn't have these expected elements: 3, 8", - Explain(m, test_set)); -} - -// Tests that added values are reported. -// Using just vector here, so order is predictable. -TEST(ContainerEqExtraTest, MultipleValuesAdded) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 92, 3, 5, 8, 46}; - list<size_t> my_set(vals, vals + 6); - list<size_t> test_set(test_vals, test_vals + 7); - const Matcher<const list<size_t>&> m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which has these unexpected elements: 92, 46", - Explain(m, test_set)); -} - -// Tests that added and missing values are reported together. -TEST(ContainerEqExtraTest, MultipleValuesAddedAndRemoved) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 3, 92, 46}; - list<size_t> my_set(vals, vals + 6); - list<size_t> test_set(test_vals, test_vals + 5); - const Matcher<const list<size_t> > m = ContainerEq(my_set); - EXPECT_FALSE(m.Matches(test_set)); - EXPECT_EQ("which has these unexpected elements: 92, 46,\n" - "and doesn't have these expected elements: 5, 8", - Explain(m, test_set)); -} - -// Tests to see that duplicate elements are detected, -// but (as above) not reported in the explanation. -TEST(ContainerEqExtraTest, MultiSetOfIntDuplicateDifference) { - static const int vals[] = {1, 1, 2, 3, 5, 8}; - static const int test_vals[] = {1, 2, 3, 5, 8}; - vector<int> my_set(vals, vals + 6); - vector<int> test_set(test_vals, test_vals + 5); - const Matcher<vector<int> > m = ContainerEq(my_set); - EXPECT_TRUE(m.Matches(my_set)); - EXPECT_FALSE(m.Matches(test_set)); - // There is nothing to report when both sets contain all the same values. - EXPECT_EQ("", Explain(m, test_set)); -} - -// Tests that ContainerEq works for non-trivial associative containers, -// like maps. -TEST(ContainerEqExtraTest, WorksForMaps) { - map<int, std::string> my_map; - my_map[0] = "a"; - my_map[1] = "b"; - - map<int, std::string> test_map; - test_map[0] = "aa"; - test_map[1] = "b"; - - const Matcher<const map<int, std::string>&> m = ContainerEq(my_map); - EXPECT_TRUE(m.Matches(my_map)); - EXPECT_FALSE(m.Matches(test_map)); - - EXPECT_EQ("which has these unexpected elements: (0, \"aa\"),\n" - "and doesn't have these expected elements: (0, \"a\")", - Explain(m, test_map)); -} - -TEST(ContainerEqExtraTest, WorksForNativeArray) { - int a1[] = {1, 2, 3}; - int a2[] = {1, 2, 3}; - int b[] = {1, 2, 4}; - - EXPECT_THAT(a1, ContainerEq(a2)); - EXPECT_THAT(a1, Not(ContainerEq(b))); -} - -TEST(ContainerEqExtraTest, WorksForTwoDimensionalNativeArray) { - const char a1[][3] = {"hi", "lo"}; - const char a2[][3] = {"hi", "lo"}; - const char b[][3] = {"lo", "hi"}; - - // Tests using ContainerEq() in the first dimension. - EXPECT_THAT(a1, ContainerEq(a2)); - EXPECT_THAT(a1, Not(ContainerEq(b))); - - // Tests using ContainerEq() in the second dimension. - EXPECT_THAT(a1, ElementsAre(ContainerEq(a2[0]), ContainerEq(a2[1]))); - EXPECT_THAT(a1, ElementsAre(Not(ContainerEq(b[0])), ContainerEq(a2[1]))); -} - -TEST(ContainerEqExtraTest, WorksForNativeArrayAsTuple) { - const int a1[] = {1, 2, 3}; - const int a2[] = {1, 2, 3}; - const int b[] = {1, 2, 3, 4}; - - const int* const p1 = a1; - EXPECT_THAT(std::make_tuple(p1, 3), ContainerEq(a2)); - EXPECT_THAT(std::make_tuple(p1, 3), Not(ContainerEq(b))); - - const int c[] = {1, 3, 2}; - EXPECT_THAT(std::make_tuple(p1, 3), Not(ContainerEq(c))); -} - -TEST(ContainerEqExtraTest, CopiesNativeArrayParameter) { - std::string a1[][3] = { - {"hi", "hello", "ciao"}, - {"bye", "see you", "ciao"} - }; - - std::string a2[][3] = { - {"hi", "hello", "ciao"}, - {"bye", "see you", "ciao"} - }; - - const Matcher<const std::string(&)[2][3]> m = ContainerEq(a2); - EXPECT_THAT(a1, m); - - a2[0][0] = "ha"; - EXPECT_THAT(a1, m); -} - -TEST(WhenSortedByTest, WorksForEmptyContainer) { - const vector<int> numbers; - EXPECT_THAT(numbers, WhenSortedBy(less<int>(), ElementsAre())); - EXPECT_THAT(numbers, Not(WhenSortedBy(less<int>(), ElementsAre(1)))); -} - -TEST(WhenSortedByTest, WorksForNonEmptyContainer) { - vector<unsigned> numbers; - numbers.push_back(3); - numbers.push_back(1); - numbers.push_back(2); - numbers.push_back(2); - EXPECT_THAT(numbers, WhenSortedBy(greater<unsigned>(), - ElementsAre(3, 2, 2, 1))); - EXPECT_THAT(numbers, Not(WhenSortedBy(greater<unsigned>(), - ElementsAre(1, 2, 2, 3)))); -} - -TEST(WhenSortedByTest, WorksForNonVectorContainer) { - list<std::string> words; - words.push_back("say"); - words.push_back("hello"); - words.push_back("world"); - EXPECT_THAT(words, WhenSortedBy(less<std::string>(), - ElementsAre("hello", "say", "world"))); - EXPECT_THAT(words, Not(WhenSortedBy(less<std::string>(), - ElementsAre("say", "hello", "world")))); -} - -TEST(WhenSortedByTest, WorksForNativeArray) { - const int numbers[] = {1, 3, 2, 4}; - const int sorted_numbers[] = {1, 2, 3, 4}; - EXPECT_THAT(numbers, WhenSortedBy(less<int>(), ElementsAre(1, 2, 3, 4))); - EXPECT_THAT(numbers, WhenSortedBy(less<int>(), - ElementsAreArray(sorted_numbers))); - EXPECT_THAT(numbers, Not(WhenSortedBy(less<int>(), ElementsAre(1, 3, 2, 4)))); -} - -TEST(WhenSortedByTest, CanDescribeSelf) { - const Matcher<vector<int> > m = WhenSortedBy(less<int>(), ElementsAre(1, 2)); - EXPECT_EQ("(when sorted) has 2 elements where\n" - "element #0 is equal to 1,\n" - "element #1 is equal to 2", - Describe(m)); - EXPECT_EQ("(when sorted) doesn't have 2 elements, or\n" - "element #0 isn't equal to 1, or\n" - "element #1 isn't equal to 2", - DescribeNegation(m)); -} - -TEST(WhenSortedByTest, ExplainsMatchResult) { - const int a[] = {2, 1}; - EXPECT_EQ("which is { 1, 2 } when sorted, whose element #0 doesn't match", - Explain(WhenSortedBy(less<int>(), ElementsAre(2, 3)), a)); - EXPECT_EQ("which is { 1, 2 } when sorted", - Explain(WhenSortedBy(less<int>(), ElementsAre(1, 2)), a)); -} - -// WhenSorted() is a simple wrapper on WhenSortedBy(). Hence we don't -// need to test it as exhaustively as we test the latter. - -TEST(WhenSortedTest, WorksForEmptyContainer) { - const vector<int> numbers; - EXPECT_THAT(numbers, WhenSorted(ElementsAre())); - EXPECT_THAT(numbers, Not(WhenSorted(ElementsAre(1)))); -} - -TEST(WhenSortedTest, WorksForNonEmptyContainer) { - list<std::string> words; - words.push_back("3"); - words.push_back("1"); - words.push_back("2"); - words.push_back("2"); - EXPECT_THAT(words, WhenSorted(ElementsAre("1", "2", "2", "3"))); - EXPECT_THAT(words, Not(WhenSorted(ElementsAre("3", "1", "2", "2")))); -} - -TEST(WhenSortedTest, WorksForMapTypes) { - map<std::string, int> word_counts; - word_counts["and"] = 1; - word_counts["the"] = 1; - word_counts["buffalo"] = 2; - EXPECT_THAT(word_counts, - WhenSorted(ElementsAre(Pair("and", 1), Pair("buffalo", 2), - Pair("the", 1)))); - EXPECT_THAT(word_counts, - Not(WhenSorted(ElementsAre(Pair("and", 1), Pair("the", 1), - Pair("buffalo", 2))))); -} - -TEST(WhenSortedTest, WorksForMultiMapTypes) { - multimap<int, int> ifib; - ifib.insert(make_pair(8, 6)); - ifib.insert(make_pair(2, 3)); - ifib.insert(make_pair(1, 1)); - ifib.insert(make_pair(3, 4)); - ifib.insert(make_pair(1, 2)); - ifib.insert(make_pair(5, 5)); - EXPECT_THAT(ifib, WhenSorted(ElementsAre(Pair(1, 1), - Pair(1, 2), - Pair(2, 3), - Pair(3, 4), - Pair(5, 5), - Pair(8, 6)))); - EXPECT_THAT(ifib, Not(WhenSorted(ElementsAre(Pair(8, 6), - Pair(2, 3), - Pair(1, 1), - Pair(3, 4), - Pair(1, 2), - Pair(5, 5))))); -} - -TEST(WhenSortedTest, WorksForPolymorphicMatcher) { - std::deque<int> d; - d.push_back(2); - d.push_back(1); - EXPECT_THAT(d, WhenSorted(ElementsAre(1, 2))); - EXPECT_THAT(d, Not(WhenSorted(ElementsAre(2, 1)))); -} - -TEST(WhenSortedTest, WorksForVectorConstRefMatcher) { - std::deque<int> d; - d.push_back(2); - d.push_back(1); - Matcher<const std::vector<int>&> vector_match = ElementsAre(1, 2); - EXPECT_THAT(d, WhenSorted(vector_match)); - Matcher<const std::vector<int>&> not_vector_match = ElementsAre(2, 1); - EXPECT_THAT(d, Not(WhenSorted(not_vector_match))); -} - -// Deliberately bare pseudo-container. -// Offers only begin() and end() accessors, yielding InputIterator. -template <typename T> -class Streamlike { - private: - class ConstIter; - public: - typedef ConstIter const_iterator; - typedef T value_type; - - template <typename InIter> - Streamlike(InIter first, InIter last) : remainder_(first, last) {} - - const_iterator begin() const { - return const_iterator(this, remainder_.begin()); - } - const_iterator end() const { - return const_iterator(this, remainder_.end()); - } - - private: - class ConstIter : public std::iterator<std::input_iterator_tag, - value_type, - ptrdiff_t, - const value_type*, - const value_type&> { - public: - ConstIter(const Streamlike* s, - typename std::list<value_type>::iterator pos) - : s_(s), pos_(pos) {} - - const value_type& operator*() const { return *pos_; } - const value_type* operator->() const { return &*pos_; } - ConstIter& operator++() { - s_->remainder_.erase(pos_++); - return *this; - } - - // *iter++ is required to work (see std::istreambuf_iterator). - // (void)iter++ is also required to work. - class PostIncrProxy { - public: - explicit PostIncrProxy(const value_type& value) : value_(value) {} - value_type operator*() const { return value_; } - private: - value_type value_; - }; - PostIncrProxy operator++(int) { - PostIncrProxy proxy(**this); - ++(*this); - return proxy; - } - - friend bool operator==(const ConstIter& a, const ConstIter& b) { - return a.s_ == b.s_ && a.pos_ == b.pos_; - } - friend bool operator!=(const ConstIter& a, const ConstIter& b) { - return !(a == b); - } - - private: - const Streamlike* s_; - typename std::list<value_type>::iterator pos_; - }; - - friend std::ostream& operator<<(std::ostream& os, const Streamlike& s) { - os << "["; - typedef typename std::list<value_type>::const_iterator Iter; - const char* sep = ""; - for (Iter it = s.remainder_.begin(); it != s.remainder_.end(); ++it) { - os << sep << *it; - sep = ","; - } - os << "]"; - return os; - } - - mutable std::list<value_type> remainder_; // modified by iteration -}; - -TEST(StreamlikeTest, Iteration) { - const int a[5] = {2, 1, 4, 5, 3}; - Streamlike<int> s(a, a + 5); - Streamlike<int>::const_iterator it = s.begin(); - const int* ip = a; - while (it != s.end()) { - SCOPED_TRACE(ip - a); - EXPECT_EQ(*ip++, *it++); - } -} - -TEST(BeginEndDistanceIsTest, WorksWithForwardList) { - std::forward_list<int> container; - EXPECT_THAT(container, BeginEndDistanceIs(0)); - EXPECT_THAT(container, Not(BeginEndDistanceIs(1))); - container.push_front(0); - EXPECT_THAT(container, Not(BeginEndDistanceIs(0))); - EXPECT_THAT(container, BeginEndDistanceIs(1)); - container.push_front(0); - EXPECT_THAT(container, Not(BeginEndDistanceIs(0))); - EXPECT_THAT(container, BeginEndDistanceIs(2)); -} - -TEST(BeginEndDistanceIsTest, WorksWithNonStdList) { - const int a[5] = {1, 2, 3, 4, 5}; - Streamlike<int> s(a, a + 5); - EXPECT_THAT(s, BeginEndDistanceIs(5)); -} - -TEST(BeginEndDistanceIsTest, CanDescribeSelf) { - Matcher<vector<int> > m = BeginEndDistanceIs(2); - EXPECT_EQ("distance between begin() and end() is equal to 2", Describe(m)); - EXPECT_EQ("distance between begin() and end() isn't equal to 2", - DescribeNegation(m)); -} - -TEST(BeginEndDistanceIsTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(BeginEndDistanceIs(2))); - helper.Call(MakeUniquePtrs({1, 2})); -} - -TEST(BeginEndDistanceIsTest, ExplainsResult) { - Matcher<vector<int> > m1 = BeginEndDistanceIs(2); - Matcher<vector<int> > m2 = BeginEndDistanceIs(Lt(2)); - Matcher<vector<int> > m3 = BeginEndDistanceIs(AnyOf(0, 3)); - Matcher<vector<int> > m4 = BeginEndDistanceIs(GreaterThan(1)); - vector<int> container; - EXPECT_EQ("whose distance between begin() and end() 0 doesn't match", - Explain(m1, container)); - EXPECT_EQ("whose distance between begin() and end() 0 matches", - Explain(m2, container)); - EXPECT_EQ("whose distance between begin() and end() 0 matches", - Explain(m3, container)); - EXPECT_EQ( - "whose distance between begin() and end() 0 doesn't match, which is 1 " - "less than 1", - Explain(m4, container)); - container.push_back(0); - container.push_back(0); - EXPECT_EQ("whose distance between begin() and end() 2 matches", - Explain(m1, container)); - EXPECT_EQ("whose distance between begin() and end() 2 doesn't match", - Explain(m2, container)); - EXPECT_EQ("whose distance between begin() and end() 2 doesn't match", - Explain(m3, container)); - EXPECT_EQ( - "whose distance between begin() and end() 2 matches, which is 1 more " - "than 1", - Explain(m4, container)); -} - -TEST(WhenSortedTest, WorksForStreamlike) { - // Streamlike 'container' provides only minimal iterator support. - // Its iterators are tagged with input_iterator_tag. - const int a[5] = {2, 1, 4, 5, 3}; - Streamlike<int> s(std::begin(a), std::end(a)); - EXPECT_THAT(s, WhenSorted(ElementsAre(1, 2, 3, 4, 5))); - EXPECT_THAT(s, Not(WhenSorted(ElementsAre(2, 1, 4, 5, 3)))); -} - -TEST(WhenSortedTest, WorksForVectorConstRefMatcherOnStreamlike) { - const int a[] = {2, 1, 4, 5, 3}; - Streamlike<int> s(std::begin(a), std::end(a)); - Matcher<const std::vector<int>&> vector_match = ElementsAre(1, 2, 3, 4, 5); - EXPECT_THAT(s, WhenSorted(vector_match)); - EXPECT_THAT(s, Not(WhenSorted(ElementsAre(2, 1, 4, 5, 3)))); -} - -TEST(IsSupersetOfTest, WorksForNativeArray) { - const int subset[] = {1, 4}; - const int superset[] = {1, 2, 4}; - const int disjoint[] = {1, 0, 3}; - EXPECT_THAT(subset, IsSupersetOf(subset)); - EXPECT_THAT(subset, Not(IsSupersetOf(superset))); - EXPECT_THAT(superset, IsSupersetOf(subset)); - EXPECT_THAT(subset, Not(IsSupersetOf(disjoint))); - EXPECT_THAT(disjoint, Not(IsSupersetOf(subset))); -} - -TEST(IsSupersetOfTest, WorksWithDuplicates) { - const int not_enough[] = {1, 2}; - const int enough[] = {1, 1, 2}; - const int expected[] = {1, 1}; - EXPECT_THAT(not_enough, Not(IsSupersetOf(expected))); - EXPECT_THAT(enough, IsSupersetOf(expected)); -} - -TEST(IsSupersetOfTest, WorksForEmpty) { - vector<int> numbers; - vector<int> expected; - EXPECT_THAT(numbers, IsSupersetOf(expected)); - expected.push_back(1); - EXPECT_THAT(numbers, Not(IsSupersetOf(expected))); - expected.clear(); - numbers.push_back(1); - numbers.push_back(2); - EXPECT_THAT(numbers, IsSupersetOf(expected)); - expected.push_back(1); - EXPECT_THAT(numbers, IsSupersetOf(expected)); - expected.push_back(2); - EXPECT_THAT(numbers, IsSupersetOf(expected)); - expected.push_back(3); - EXPECT_THAT(numbers, Not(IsSupersetOf(expected))); -} - -TEST(IsSupersetOfTest, WorksForStreamlike) { - const int a[5] = {1, 2, 3, 4, 5}; - Streamlike<int> s(std::begin(a), std::end(a)); - - vector<int> expected; - expected.push_back(1); - expected.push_back(2); - expected.push_back(5); - EXPECT_THAT(s, IsSupersetOf(expected)); - - expected.push_back(0); - EXPECT_THAT(s, Not(IsSupersetOf(expected))); -} - -TEST(IsSupersetOfTest, TakesStlContainer) { - const int actual[] = {3, 1, 2}; - - ::std::list<int> expected; - expected.push_back(1); - expected.push_back(3); - EXPECT_THAT(actual, IsSupersetOf(expected)); - - expected.push_back(4); - EXPECT_THAT(actual, Not(IsSupersetOf(expected))); -} - -TEST(IsSupersetOfTest, Describe) { - typedef std::vector<int> IntVec; - IntVec expected; - expected.push_back(111); - expected.push_back(222); - expected.push_back(333); - EXPECT_THAT( - Describe<IntVec>(IsSupersetOf(expected)), - Eq("a surjection from elements to requirements exists such that:\n" - " - an element is equal to 111\n" - " - an element is equal to 222\n" - " - an element is equal to 333")); -} - -TEST(IsSupersetOfTest, DescribeNegation) { - typedef std::vector<int> IntVec; - IntVec expected; - expected.push_back(111); - expected.push_back(222); - expected.push_back(333); - EXPECT_THAT( - DescribeNegation<IntVec>(IsSupersetOf(expected)), - Eq("no surjection from elements to requirements exists such that:\n" - " - an element is equal to 111\n" - " - an element is equal to 222\n" - " - an element is equal to 333")); -} - -TEST(IsSupersetOfTest, MatchAndExplain) { - std::vector<int> v; - v.push_back(2); - v.push_back(3); - std::vector<int> expected; - expected.push_back(1); - expected.push_back(2); - StringMatchResultListener listener; - ASSERT_FALSE(ExplainMatchResult(IsSupersetOf(expected), v, &listener)) - << listener.str(); - EXPECT_THAT(listener.str(), - Eq("where the following matchers don't match any elements:\n" - "matcher #0: is equal to 1")); - - v.push_back(1); - listener.Clear(); - ASSERT_TRUE(ExplainMatchResult(IsSupersetOf(expected), v, &listener)) - << listener.str(); - EXPECT_THAT(listener.str(), Eq("where:\n" - " - element #0 is matched by matcher #1,\n" - " - element #2 is matched by matcher #0")); -} - -TEST(IsSupersetOfTest, WorksForRhsInitializerList) { - const int numbers[] = {1, 3, 6, 2, 4, 5}; - EXPECT_THAT(numbers, IsSupersetOf({1, 2})); - EXPECT_THAT(numbers, Not(IsSupersetOf({3, 0}))); -} - -TEST(IsSupersetOfTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(IsSupersetOf({Pointee(1)}))); - helper.Call(MakeUniquePtrs({1, 2})); - EXPECT_CALL(helper, Call(Not(IsSupersetOf({Pointee(1), Pointee(2)})))); - helper.Call(MakeUniquePtrs({2})); -} - -TEST(IsSubsetOfTest, WorksForNativeArray) { - const int subset[] = {1, 4}; - const int superset[] = {1, 2, 4}; - const int disjoint[] = {1, 0, 3}; - EXPECT_THAT(subset, IsSubsetOf(subset)); - EXPECT_THAT(subset, IsSubsetOf(superset)); - EXPECT_THAT(superset, Not(IsSubsetOf(subset))); - EXPECT_THAT(subset, Not(IsSubsetOf(disjoint))); - EXPECT_THAT(disjoint, Not(IsSubsetOf(subset))); -} - -TEST(IsSubsetOfTest, WorksWithDuplicates) { - const int not_enough[] = {1, 2}; - const int enough[] = {1, 1, 2}; - const int actual[] = {1, 1}; - EXPECT_THAT(actual, Not(IsSubsetOf(not_enough))); - EXPECT_THAT(actual, IsSubsetOf(enough)); -} - -TEST(IsSubsetOfTest, WorksForEmpty) { - vector<int> numbers; - vector<int> expected; - EXPECT_THAT(numbers, IsSubsetOf(expected)); - expected.push_back(1); - EXPECT_THAT(numbers, IsSubsetOf(expected)); - expected.clear(); - numbers.push_back(1); - numbers.push_back(2); - EXPECT_THAT(numbers, Not(IsSubsetOf(expected))); - expected.push_back(1); - EXPECT_THAT(numbers, Not(IsSubsetOf(expected))); - expected.push_back(2); - EXPECT_THAT(numbers, IsSubsetOf(expected)); - expected.push_back(3); - EXPECT_THAT(numbers, IsSubsetOf(expected)); -} - -TEST(IsSubsetOfTest, WorksForStreamlike) { - const int a[5] = {1, 2}; - Streamlike<int> s(std::begin(a), std::end(a)); - - vector<int> expected; - expected.push_back(1); - EXPECT_THAT(s, Not(IsSubsetOf(expected))); - expected.push_back(2); - expected.push_back(5); - EXPECT_THAT(s, IsSubsetOf(expected)); -} - -TEST(IsSubsetOfTest, TakesStlContainer) { - const int actual[] = {3, 1, 2}; - - ::std::list<int> expected; - expected.push_back(1); - expected.push_back(3); - EXPECT_THAT(actual, Not(IsSubsetOf(expected))); - - expected.push_back(2); - expected.push_back(4); - EXPECT_THAT(actual, IsSubsetOf(expected)); -} - -TEST(IsSubsetOfTest, Describe) { - typedef std::vector<int> IntVec; - IntVec expected; - expected.push_back(111); - expected.push_back(222); - expected.push_back(333); - - EXPECT_THAT( - Describe<IntVec>(IsSubsetOf(expected)), - Eq("an injection from elements to requirements exists such that:\n" - " - an element is equal to 111\n" - " - an element is equal to 222\n" - " - an element is equal to 333")); -} - -TEST(IsSubsetOfTest, DescribeNegation) { - typedef std::vector<int> IntVec; - IntVec expected; - expected.push_back(111); - expected.push_back(222); - expected.push_back(333); - EXPECT_THAT( - DescribeNegation<IntVec>(IsSubsetOf(expected)), - Eq("no injection from elements to requirements exists such that:\n" - " - an element is equal to 111\n" - " - an element is equal to 222\n" - " - an element is equal to 333")); -} - -TEST(IsSubsetOfTest, MatchAndExplain) { - std::vector<int> v; - v.push_back(2); - v.push_back(3); - std::vector<int> expected; - expected.push_back(1); - expected.push_back(2); - StringMatchResultListener listener; - ASSERT_FALSE(ExplainMatchResult(IsSubsetOf(expected), v, &listener)) - << listener.str(); - EXPECT_THAT(listener.str(), - Eq("where the following elements don't match any matchers:\n" - "element #1: 3")); - - expected.push_back(3); - listener.Clear(); - ASSERT_TRUE(ExplainMatchResult(IsSubsetOf(expected), v, &listener)) - << listener.str(); - EXPECT_THAT(listener.str(), Eq("where:\n" - " - element #0 is matched by matcher #1,\n" - " - element #1 is matched by matcher #2")); -} - -TEST(IsSubsetOfTest, WorksForRhsInitializerList) { - const int numbers[] = {1, 2, 3}; - EXPECT_THAT(numbers, IsSubsetOf({1, 2, 3, 4})); - EXPECT_THAT(numbers, Not(IsSubsetOf({1, 2}))); -} - -TEST(IsSubsetOfTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(IsSubsetOf({Pointee(1), Pointee(2)}))); - helper.Call(MakeUniquePtrs({1})); - EXPECT_CALL(helper, Call(Not(IsSubsetOf({Pointee(1)})))); - helper.Call(MakeUniquePtrs({2})); -} - -// Tests using ElementsAre() and ElementsAreArray() with stream-like -// "containers". - -TEST(ElemensAreStreamTest, WorksForStreamlike) { - const int a[5] = {1, 2, 3, 4, 5}; - Streamlike<int> s(std::begin(a), std::end(a)); - EXPECT_THAT(s, ElementsAre(1, 2, 3, 4, 5)); - EXPECT_THAT(s, Not(ElementsAre(2, 1, 4, 5, 3))); -} - -TEST(ElemensAreArrayStreamTest, WorksForStreamlike) { - const int a[5] = {1, 2, 3, 4, 5}; - Streamlike<int> s(std::begin(a), std::end(a)); - - vector<int> expected; - expected.push_back(1); - expected.push_back(2); - expected.push_back(3); - expected.push_back(4); - expected.push_back(5); - EXPECT_THAT(s, ElementsAreArray(expected)); - - expected[3] = 0; - EXPECT_THAT(s, Not(ElementsAreArray(expected))); -} - -TEST(ElementsAreTest, WorksWithUncopyable) { - Uncopyable objs[2]; - objs[0].set_value(-3); - objs[1].set_value(1); - EXPECT_THAT(objs, ElementsAre(UncopyableIs(-3), Truly(ValueIsPositive))); -} - -TEST(ElementsAreTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(ElementsAre(Pointee(1), Pointee(2)))); - helper.Call(MakeUniquePtrs({1, 2})); - - EXPECT_CALL(helper, Call(ElementsAreArray({Pointee(3), Pointee(4)}))); - helper.Call(MakeUniquePtrs({3, 4})); -} - -TEST(ElementsAreTest, TakesStlContainer) { - const int actual[] = {3, 1, 2}; - - ::std::list<int> expected; - expected.push_back(3); - expected.push_back(1); - expected.push_back(2); - EXPECT_THAT(actual, ElementsAreArray(expected)); - - expected.push_back(4); - EXPECT_THAT(actual, Not(ElementsAreArray(expected))); -} - -// Tests for UnorderedElementsAreArray() - -TEST(UnorderedElementsAreArrayTest, SucceedsWhenExpected) { - const int a[] = {0, 1, 2, 3, 4}; - std::vector<int> s(std::begin(a), std::end(a)); - do { - StringMatchResultListener listener; - EXPECT_TRUE(ExplainMatchResult(UnorderedElementsAreArray(a), - s, &listener)) << listener.str(); - } while (std::next_permutation(s.begin(), s.end())); -} - -TEST(UnorderedElementsAreArrayTest, VectorBool) { - const bool a[] = {0, 1, 0, 1, 1}; - const bool b[] = {1, 0, 1, 1, 0}; - std::vector<bool> expected(std::begin(a), std::end(a)); - std::vector<bool> actual(std::begin(b), std::end(b)); - StringMatchResultListener listener; - EXPECT_TRUE(ExplainMatchResult(UnorderedElementsAreArray(expected), - actual, &listener)) << listener.str(); -} - -TEST(UnorderedElementsAreArrayTest, WorksForStreamlike) { - // Streamlike 'container' provides only minimal iterator support. - // Its iterators are tagged with input_iterator_tag, and it has no - // size() or empty() methods. - const int a[5] = {2, 1, 4, 5, 3}; - Streamlike<int> s(std::begin(a), std::end(a)); - - ::std::vector<int> expected; - expected.push_back(1); - expected.push_back(2); - expected.push_back(3); - expected.push_back(4); - expected.push_back(5); - EXPECT_THAT(s, UnorderedElementsAreArray(expected)); - - expected.push_back(6); - EXPECT_THAT(s, Not(UnorderedElementsAreArray(expected))); -} - -TEST(UnorderedElementsAreArrayTest, TakesStlContainer) { - const int actual[] = {3, 1, 2}; - - ::std::list<int> expected; - expected.push_back(1); - expected.push_back(2); - expected.push_back(3); - EXPECT_THAT(actual, UnorderedElementsAreArray(expected)); - - expected.push_back(4); - EXPECT_THAT(actual, Not(UnorderedElementsAreArray(expected))); -} - - -TEST(UnorderedElementsAreArrayTest, TakesInitializerList) { - const int a[5] = {2, 1, 4, 5, 3}; - EXPECT_THAT(a, UnorderedElementsAreArray({1, 2, 3, 4, 5})); - EXPECT_THAT(a, Not(UnorderedElementsAreArray({1, 2, 3, 4, 6}))); -} - -TEST(UnorderedElementsAreArrayTest, TakesInitializerListOfCStrings) { - const std::string a[5] = {"a", "b", "c", "d", "e"}; - EXPECT_THAT(a, UnorderedElementsAreArray({"a", "b", "c", "d", "e"})); - EXPECT_THAT(a, Not(UnorderedElementsAreArray({"a", "b", "c", "d", "ef"}))); -} - -TEST(UnorderedElementsAreArrayTest, TakesInitializerListOfSameTypedMatchers) { - const int a[5] = {2, 1, 4, 5, 3}; - EXPECT_THAT(a, UnorderedElementsAreArray( - {Eq(1), Eq(2), Eq(3), Eq(4), Eq(5)})); - EXPECT_THAT(a, Not(UnorderedElementsAreArray( - {Eq(1), Eq(2), Eq(3), Eq(4), Eq(6)}))); -} - -TEST(UnorderedElementsAreArrayTest, - TakesInitializerListOfDifferentTypedMatchers) { - const int a[5] = {2, 1, 4, 5, 3}; - // The compiler cannot infer the type of the initializer list if its - // elements have different types. We must explicitly specify the - // unified element type in this case. - EXPECT_THAT(a, UnorderedElementsAreArray<Matcher<int> >( - {Eq(1), Ne(-2), Ge(3), Le(4), Eq(5)})); - EXPECT_THAT(a, Not(UnorderedElementsAreArray<Matcher<int> >( - {Eq(1), Ne(-2), Ge(3), Le(4), Eq(6)}))); -} - - -TEST(UnorderedElementsAreArrayTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, - Call(UnorderedElementsAreArray({Pointee(1), Pointee(2)}))); - helper.Call(MakeUniquePtrs({2, 1})); -} - -class UnorderedElementsAreTest : public testing::Test { - protected: - typedef std::vector<int> IntVec; -}; - -TEST_F(UnorderedElementsAreTest, WorksWithUncopyable) { - Uncopyable objs[2]; - objs[0].set_value(-3); - objs[1].set_value(1); - EXPECT_THAT(objs, - UnorderedElementsAre(Truly(ValueIsPositive), UncopyableIs(-3))); -} - -TEST_F(UnorderedElementsAreTest, SucceedsWhenExpected) { - const int a[] = {1, 2, 3}; - std::vector<int> s(std::begin(a), std::end(a)); - do { - StringMatchResultListener listener; - EXPECT_TRUE(ExplainMatchResult(UnorderedElementsAre(1, 2, 3), - s, &listener)) << listener.str(); - } while (std::next_permutation(s.begin(), s.end())); -} - -TEST_F(UnorderedElementsAreTest, FailsWhenAnElementMatchesNoMatcher) { - const int a[] = {1, 2, 3}; - std::vector<int> s(std::begin(a), std::end(a)); - std::vector<Matcher<int> > mv; - mv.push_back(1); - mv.push_back(2); - mv.push_back(2); - // The element with value '3' matches nothing: fail fast. - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAreArray(mv), - s, &listener)) << listener.str(); -} - -TEST_F(UnorderedElementsAreTest, WorksForStreamlike) { - // Streamlike 'container' provides only minimal iterator support. - // Its iterators are tagged with input_iterator_tag, and it has no - // size() or empty() methods. - const int a[5] = {2, 1, 4, 5, 3}; - Streamlike<int> s(std::begin(a), std::end(a)); - - EXPECT_THAT(s, UnorderedElementsAre(1, 2, 3, 4, 5)); - EXPECT_THAT(s, Not(UnorderedElementsAre(2, 2, 3, 4, 5))); -} - -TEST_F(UnorderedElementsAreTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(UnorderedElementsAre(Pointee(1), Pointee(2)))); - helper.Call(MakeUniquePtrs({2, 1})); -} - -// One naive implementation of the matcher runs in O(N!) time, which is too -// slow for many real-world inputs. This test shows that our matcher can match -// 100 inputs very quickly (a few milliseconds). An O(100!) is 10^158 -// iterations and obviously effectively incomputable. -// [ RUN ] UnorderedElementsAreTest.Performance -// [ OK ] UnorderedElementsAreTest.Performance (4 ms) -TEST_F(UnorderedElementsAreTest, Performance) { - std::vector<int> s; - std::vector<Matcher<int> > mv; - for (int i = 0; i < 100; ++i) { - s.push_back(i); - mv.push_back(_); - } - mv[50] = Eq(0); - StringMatchResultListener listener; - EXPECT_TRUE(ExplainMatchResult(UnorderedElementsAreArray(mv), - s, &listener)) << listener.str(); -} - -// Another variant of 'Performance' with similar expectations. -// [ RUN ] UnorderedElementsAreTest.PerformanceHalfStrict -// [ OK ] UnorderedElementsAreTest.PerformanceHalfStrict (4 ms) -TEST_F(UnorderedElementsAreTest, PerformanceHalfStrict) { - std::vector<int> s; - std::vector<Matcher<int> > mv; - for (int i = 0; i < 100; ++i) { - s.push_back(i); - if (i & 1) { - mv.push_back(_); - } else { - mv.push_back(i); - } - } - StringMatchResultListener listener; - EXPECT_TRUE(ExplainMatchResult(UnorderedElementsAreArray(mv), - s, &listener)) << listener.str(); -} - -TEST_F(UnorderedElementsAreTest, FailMessageCountWrong) { - std::vector<int> v; - v.push_back(4); - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAre(1, 2, 3), - v, &listener)) << listener.str(); - EXPECT_THAT(listener.str(), Eq("which has 1 element")); -} - -TEST_F(UnorderedElementsAreTest, FailMessageCountWrongZero) { - std::vector<int> v; - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAre(1, 2, 3), - v, &listener)) << listener.str(); - EXPECT_THAT(listener.str(), Eq("")); -} - -TEST_F(UnorderedElementsAreTest, FailMessageUnmatchedMatchers) { - std::vector<int> v; - v.push_back(1); - v.push_back(1); - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAre(1, 2), - v, &listener)) << listener.str(); - EXPECT_THAT( - listener.str(), - Eq("where the following matchers don't match any elements:\n" - "matcher #1: is equal to 2")); -} - -TEST_F(UnorderedElementsAreTest, FailMessageUnmatchedElements) { - std::vector<int> v; - v.push_back(1); - v.push_back(2); - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAre(1, 1), - v, &listener)) << listener.str(); - EXPECT_THAT( - listener.str(), - Eq("where the following elements don't match any matchers:\n" - "element #1: 2")); -} - -TEST_F(UnorderedElementsAreTest, FailMessageUnmatchedMatcherAndElement) { - std::vector<int> v; - v.push_back(2); - v.push_back(3); - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult(UnorderedElementsAre(1, 2), - v, &listener)) << listener.str(); - EXPECT_THAT( - listener.str(), - Eq("where" - " the following matchers don't match any elements:\n" - "matcher #0: is equal to 1\n" - "and" - " where" - " the following elements don't match any matchers:\n" - "element #1: 3")); -} - -// Test helper for formatting element, matcher index pairs in expectations. -static std::string EMString(int element, int matcher) { - stringstream ss; - ss << "(element #" << element << ", matcher #" << matcher << ")"; - return ss.str(); -} - -TEST_F(UnorderedElementsAreTest, FailMessageImperfectMatchOnly) { - // A situation where all elements and matchers have a match - // associated with them, but the max matching is not perfect. - std::vector<std::string> v; - v.push_back("a"); - v.push_back("b"); - v.push_back("c"); - StringMatchResultListener listener; - EXPECT_FALSE(ExplainMatchResult( - UnorderedElementsAre("a", "a", AnyOf("b", "c")), v, &listener)) - << listener.str(); - - std::string prefix = - "where no permutation of the elements can satisfy all matchers, " - "and the closest match is 2 of 3 matchers with the " - "pairings:\n"; - - // We have to be a bit loose here, because there are 4 valid max matches. - EXPECT_THAT( - listener.str(), - AnyOf(prefix + "{\n " + EMString(0, 0) + - ",\n " + EMString(1, 2) + "\n}", - prefix + "{\n " + EMString(0, 1) + - ",\n " + EMString(1, 2) + "\n}", - prefix + "{\n " + EMString(0, 0) + - ",\n " + EMString(2, 2) + "\n}", - prefix + "{\n " + EMString(0, 1) + - ",\n " + EMString(2, 2) + "\n}")); -} - -TEST_F(UnorderedElementsAreTest, Describe) { - EXPECT_THAT(Describe<IntVec>(UnorderedElementsAre()), - Eq("is empty")); - EXPECT_THAT( - Describe<IntVec>(UnorderedElementsAre(345)), - Eq("has 1 element and that element is equal to 345")); - EXPECT_THAT( - Describe<IntVec>(UnorderedElementsAre(111, 222, 333)), - Eq("has 3 elements and there exists some permutation " - "of elements such that:\n" - " - element #0 is equal to 111, and\n" - " - element #1 is equal to 222, and\n" - " - element #2 is equal to 333")); -} - -TEST_F(UnorderedElementsAreTest, DescribeNegation) { - EXPECT_THAT(DescribeNegation<IntVec>(UnorderedElementsAre()), - Eq("isn't empty")); - EXPECT_THAT( - DescribeNegation<IntVec>(UnorderedElementsAre(345)), - Eq("doesn't have 1 element, or has 1 element that isn't equal to 345")); - EXPECT_THAT( - DescribeNegation<IntVec>(UnorderedElementsAre(123, 234, 345)), - Eq("doesn't have 3 elements, or there exists no permutation " - "of elements such that:\n" - " - element #0 is equal to 123, and\n" - " - element #1 is equal to 234, and\n" - " - element #2 is equal to 345")); -} - -namespace { - -// Used as a check on the more complex max flow method used in the -// real testing::internal::FindMaxBipartiteMatching. This method is -// compatible but runs in worst-case factorial time, so we only -// use it in testing for small problem sizes. -template <typename Graph> -class BacktrackingMaxBPMState { - public: - // Does not take ownership of 'g'. - explicit BacktrackingMaxBPMState(const Graph* g) : graph_(g) { } - - ElementMatcherPairs Compute() { - if (graph_->LhsSize() == 0 || graph_->RhsSize() == 0) { - return best_so_far_; - } - lhs_used_.assign(graph_->LhsSize(), kUnused); - rhs_used_.assign(graph_->RhsSize(), kUnused); - for (size_t irhs = 0; irhs < graph_->RhsSize(); ++irhs) { - matches_.clear(); - RecurseInto(irhs); - if (best_so_far_.size() == graph_->RhsSize()) - break; - } - return best_so_far_; - } - - private: - static const size_t kUnused = static_cast<size_t>(-1); - - void PushMatch(size_t lhs, size_t rhs) { - matches_.push_back(ElementMatcherPair(lhs, rhs)); - lhs_used_[lhs] = rhs; - rhs_used_[rhs] = lhs; - if (matches_.size() > best_so_far_.size()) { - best_so_far_ = matches_; - } - } - - void PopMatch() { - const ElementMatcherPair& back = matches_.back(); - lhs_used_[back.first] = kUnused; - rhs_used_[back.second] = kUnused; - matches_.pop_back(); - } - - bool RecurseInto(size_t irhs) { - if (rhs_used_[irhs] != kUnused) { - return true; - } - for (size_t ilhs = 0; ilhs < graph_->LhsSize(); ++ilhs) { - if (lhs_used_[ilhs] != kUnused) { - continue; - } - if (!graph_->HasEdge(ilhs, irhs)) { - continue; - } - PushMatch(ilhs, irhs); - if (best_so_far_.size() == graph_->RhsSize()) { - return false; - } - for (size_t mi = irhs + 1; mi < graph_->RhsSize(); ++mi) { - if (!RecurseInto(mi)) return false; - } - PopMatch(); - } - return true; - } - - const Graph* graph_; // not owned - std::vector<size_t> lhs_used_; - std::vector<size_t> rhs_used_; - ElementMatcherPairs matches_; - ElementMatcherPairs best_so_far_; -}; - -template <typename Graph> -const size_t BacktrackingMaxBPMState<Graph>::kUnused; - -} // namespace - -// Implement a simple backtracking algorithm to determine if it is possible -// to find one element per matcher, without reusing elements. -template <typename Graph> -ElementMatcherPairs -FindBacktrackingMaxBPM(const Graph& g) { - return BacktrackingMaxBPMState<Graph>(&g).Compute(); -} - -class BacktrackingBPMTest : public ::testing::Test { }; - -// Tests the MaxBipartiteMatching algorithm with square matrices. -// The single int param is the # of nodes on each of the left and right sides. -class BipartiteTest : public ::testing::TestWithParam<size_t> {}; - -// Verify all match graphs up to some moderate number of edges. -TEST_P(BipartiteTest, Exhaustive) { - size_t nodes = GetParam(); - MatchMatrix graph(nodes, nodes); - do { - ElementMatcherPairs matches = - internal::FindMaxBipartiteMatching(graph); - EXPECT_EQ(FindBacktrackingMaxBPM(graph).size(), matches.size()) - << "graph: " << graph.DebugString(); - // Check that all elements of matches are in the graph. - // Check that elements of first and second are unique. - std::vector<bool> seen_element(graph.LhsSize()); - std::vector<bool> seen_matcher(graph.RhsSize()); - SCOPED_TRACE(PrintToString(matches)); - for (size_t i = 0; i < matches.size(); ++i) { - size_t ilhs = matches[i].first; - size_t irhs = matches[i].second; - EXPECT_TRUE(graph.HasEdge(ilhs, irhs)); - EXPECT_FALSE(seen_element[ilhs]); - EXPECT_FALSE(seen_matcher[irhs]); - seen_element[ilhs] = true; - seen_matcher[irhs] = true; - } - } while (graph.NextGraph()); -} - -INSTANTIATE_TEST_SUITE_P(AllGraphs, BipartiteTest, - ::testing::Range(size_t{0}, size_t{5})); - -// Parameterized by a pair interpreted as (LhsSize, RhsSize). -class BipartiteNonSquareTest - : public ::testing::TestWithParam<std::pair<size_t, size_t> > { -}; - -TEST_F(BipartiteNonSquareTest, SimpleBacktracking) { - // ....... - // 0:-----\ : - // 1:---\ | : - // 2:---\ | : - // 3:-\ | | : - // :.......: - // 0 1 2 - MatchMatrix g(4, 3); - constexpr std::array<std::array<size_t, 2>, 4> kEdges = { - {{{0, 2}}, {{1, 1}}, {{2, 1}}, {{3, 0}}}}; - for (size_t i = 0; i < kEdges.size(); ++i) { - g.SetEdge(kEdges[i][0], kEdges[i][1], true); - } - EXPECT_THAT(FindBacktrackingMaxBPM(g), - ElementsAre(Pair(3, 0), - Pair(AnyOf(1, 2), 1), - Pair(0, 2))) << g.DebugString(); -} - -// Verify a few nonsquare matrices. -TEST_P(BipartiteNonSquareTest, Exhaustive) { - size_t nlhs = GetParam().first; - size_t nrhs = GetParam().second; - MatchMatrix graph(nlhs, nrhs); - do { - EXPECT_EQ(FindBacktrackingMaxBPM(graph).size(), - internal::FindMaxBipartiteMatching(graph).size()) - << "graph: " << graph.DebugString() - << "\nbacktracking: " - << PrintToString(FindBacktrackingMaxBPM(graph)) - << "\nmax flow: " - << PrintToString(internal::FindMaxBipartiteMatching(graph)); - } while (graph.NextGraph()); -} - -INSTANTIATE_TEST_SUITE_P(AllGraphs, BipartiteNonSquareTest, - testing::Values( - std::make_pair(1, 2), - std::make_pair(2, 1), - std::make_pair(3, 2), - std::make_pair(2, 3), - std::make_pair(4, 1), - std::make_pair(1, 4), - std::make_pair(4, 3), - std::make_pair(3, 4))); - -class BipartiteRandomTest - : public ::testing::TestWithParam<std::pair<int, int> > { -}; - -// Verifies a large sample of larger graphs. -TEST_P(BipartiteRandomTest, LargerNets) { - int nodes = GetParam().first; - int iters = GetParam().second; - MatchMatrix graph(static_cast<size_t>(nodes), static_cast<size_t>(nodes)); - - auto seed = static_cast<uint32_t>(GTEST_FLAG(random_seed)); - if (seed == 0) { - seed = static_cast<uint32_t>(time(nullptr)); - } - - for (; iters > 0; --iters, ++seed) { - srand(static_cast<unsigned int>(seed)); - graph.Randomize(); - EXPECT_EQ(FindBacktrackingMaxBPM(graph).size(), - internal::FindMaxBipartiteMatching(graph).size()) - << " graph: " << graph.DebugString() - << "\nTo reproduce the failure, rerun the test with the flag" - " --" << GTEST_FLAG_PREFIX_ << "random_seed=" << seed; - } -} - -// Test argument is a std::pair<int, int> representing (nodes, iters). -INSTANTIATE_TEST_SUITE_P(Samples, BipartiteRandomTest, - testing::Values( - std::make_pair(5, 10000), - std::make_pair(6, 5000), - std::make_pair(7, 2000), - std::make_pair(8, 500), - std::make_pair(9, 100))); - -// Tests IsReadableTypeName(). - -TEST(IsReadableTypeNameTest, ReturnsTrueForShortNames) { - EXPECT_TRUE(IsReadableTypeName("int")); - EXPECT_TRUE(IsReadableTypeName("const unsigned char*")); - EXPECT_TRUE(IsReadableTypeName("MyMap<int, void*>")); - EXPECT_TRUE(IsReadableTypeName("void (*)(int, bool)")); -} - -TEST(IsReadableTypeNameTest, ReturnsTrueForLongNonTemplateNonFunctionNames) { - EXPECT_TRUE(IsReadableTypeName("my_long_namespace::MyClassName")); - EXPECT_TRUE(IsReadableTypeName("int [5][6][7][8][9][10][11]")); - EXPECT_TRUE(IsReadableTypeName("my_namespace::MyOuterClass::MyInnerClass")); -} - -TEST(IsReadableTypeNameTest, ReturnsFalseForLongTemplateNames) { - EXPECT_FALSE( - IsReadableTypeName("basic_string<char, std::char_traits<char> >")); - EXPECT_FALSE(IsReadableTypeName("std::vector<int, std::alloc_traits<int> >")); -} - -TEST(IsReadableTypeNameTest, ReturnsFalseForLongFunctionTypeNames) { - EXPECT_FALSE(IsReadableTypeName("void (&)(int, bool, char, float)")); -} - -// Tests FormatMatcherDescription(). - -TEST(FormatMatcherDescriptionTest, WorksForEmptyDescription) { - EXPECT_EQ("is even", - FormatMatcherDescription(false, "IsEven", Strings())); - EXPECT_EQ("not (is even)", - FormatMatcherDescription(true, "IsEven", Strings())); - - const char* params[] = {"5"}; - EXPECT_EQ("equals 5", - FormatMatcherDescription(false, "Equals", - Strings(params, params + 1))); - - const char* params2[] = {"5", "8"}; - EXPECT_EQ("is in range (5, 8)", - FormatMatcherDescription(false, "IsInRange", - Strings(params2, params2 + 2))); -} - -// Tests PolymorphicMatcher::mutable_impl(). -TEST(PolymorphicMatcherTest, CanAccessMutableImpl) { - PolymorphicMatcher<DivisibleByImpl> m(DivisibleByImpl(42)); - DivisibleByImpl& impl = m.mutable_impl(); - EXPECT_EQ(42, impl.divider()); - - impl.set_divider(0); - EXPECT_EQ(0, m.mutable_impl().divider()); -} - -// Tests PolymorphicMatcher::impl(). -TEST(PolymorphicMatcherTest, CanAccessImpl) { - const PolymorphicMatcher<DivisibleByImpl> m(DivisibleByImpl(42)); - const DivisibleByImpl& impl = m.impl(); - EXPECT_EQ(42, impl.divider()); -} - -TEST(MatcherTupleTest, ExplainsMatchFailure) { - stringstream ss1; - ExplainMatchFailureTupleTo( - std::make_tuple(Matcher<char>(Eq('a')), GreaterThan(5)), - std::make_tuple('a', 10), &ss1); - EXPECT_EQ("", ss1.str()); // Successful match. - - stringstream ss2; - ExplainMatchFailureTupleTo( - std::make_tuple(GreaterThan(5), Matcher<char>(Eq('a'))), - std::make_tuple(2, 'b'), &ss2); - EXPECT_EQ(" Expected arg #0: is > 5\n" - " Actual: 2, which is 3 less than 5\n" - " Expected arg #1: is equal to 'a' (97, 0x61)\n" - " Actual: 'b' (98, 0x62)\n", - ss2.str()); // Failed match where both arguments need explanation. - - stringstream ss3; - ExplainMatchFailureTupleTo( - std::make_tuple(GreaterThan(5), Matcher<char>(Eq('a'))), - std::make_tuple(2, 'a'), &ss3); - EXPECT_EQ(" Expected arg #0: is > 5\n" - " Actual: 2, which is 3 less than 5\n", - ss3.str()); // Failed match where only one argument needs - // explanation. -} - -// Tests Each(). - -TEST(EachTest, ExplainsMatchResultCorrectly) { - set<int> a; // empty - - Matcher<set<int> > m = Each(2); - EXPECT_EQ("", Explain(m, a)); - - Matcher<const int(&)[1]> n = Each(1); // NOLINT - - const int b[1] = {1}; - EXPECT_EQ("", Explain(n, b)); - - n = Each(3); - EXPECT_EQ("whose element #0 doesn't match", Explain(n, b)); - - a.insert(1); - a.insert(2); - a.insert(3); - m = Each(GreaterThan(0)); - EXPECT_EQ("", Explain(m, a)); - - m = Each(GreaterThan(10)); - EXPECT_EQ("whose element #0 doesn't match, which is 9 less than 10", - Explain(m, a)); -} - -TEST(EachTest, DescribesItselfCorrectly) { - Matcher<vector<int> > m = Each(1); - EXPECT_EQ("only contains elements that is equal to 1", Describe(m)); - - Matcher<vector<int> > m2 = Not(m); - EXPECT_EQ("contains some element that isn't equal to 1", Describe(m2)); -} - -TEST(EachTest, MatchesVectorWhenAllElementsMatch) { - vector<int> some_vector; - EXPECT_THAT(some_vector, Each(1)); - some_vector.push_back(3); - EXPECT_THAT(some_vector, Not(Each(1))); - EXPECT_THAT(some_vector, Each(3)); - some_vector.push_back(1); - some_vector.push_back(2); - EXPECT_THAT(some_vector, Not(Each(3))); - EXPECT_THAT(some_vector, Each(Lt(3.5))); - - vector<std::string> another_vector; - another_vector.push_back("fee"); - EXPECT_THAT(another_vector, Each(std::string("fee"))); - another_vector.push_back("fie"); - another_vector.push_back("foe"); - another_vector.push_back("fum"); - EXPECT_THAT(another_vector, Not(Each(std::string("fee")))); -} - -TEST(EachTest, MatchesMapWhenAllElementsMatch) { - map<const char*, int> my_map; - const char* bar = "a string"; - my_map[bar] = 2; - EXPECT_THAT(my_map, Each(make_pair(bar, 2))); - - map<std::string, int> another_map; - EXPECT_THAT(another_map, Each(make_pair(std::string("fee"), 1))); - another_map["fee"] = 1; - EXPECT_THAT(another_map, Each(make_pair(std::string("fee"), 1))); - another_map["fie"] = 2; - another_map["foe"] = 3; - another_map["fum"] = 4; - EXPECT_THAT(another_map, Not(Each(make_pair(std::string("fee"), 1)))); - EXPECT_THAT(another_map, Not(Each(make_pair(std::string("fum"), 1)))); - EXPECT_THAT(another_map, Each(Pair(_, Gt(0)))); -} - -TEST(EachTest, AcceptsMatcher) { - const int a[] = {1, 2, 3}; - EXPECT_THAT(a, Each(Gt(0))); - EXPECT_THAT(a, Not(Each(Gt(1)))); -} - -TEST(EachTest, WorksForNativeArrayAsTuple) { - const int a[] = {1, 2}; - const int* const pointer = a; - EXPECT_THAT(std::make_tuple(pointer, 2), Each(Gt(0))); - EXPECT_THAT(std::make_tuple(pointer, 2), Not(Each(Gt(1)))); -} - -TEST(EachTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(Each(Pointee(Gt(0))))); - helper.Call(MakeUniquePtrs({1, 2})); -} - -// For testing Pointwise(). -class IsHalfOfMatcher { - public: - template <typename T1, typename T2> - bool MatchAndExplain(const std::tuple<T1, T2>& a_pair, - MatchResultListener* listener) const { - if (std::get<0>(a_pair) == std::get<1>(a_pair) / 2) { - *listener << "where the second is " << std::get<1>(a_pair); - return true; - } else { - *listener << "where the second/2 is " << std::get<1>(a_pair) / 2; - return false; - } - } - - void DescribeTo(ostream* os) const { - *os << "are a pair where the first is half of the second"; - } - - void DescribeNegationTo(ostream* os) const { - *os << "are a pair where the first isn't half of the second"; - } -}; - -PolymorphicMatcher<IsHalfOfMatcher> IsHalfOf() { - return MakePolymorphicMatcher(IsHalfOfMatcher()); -} - -TEST(PointwiseTest, DescribesSelf) { - vector<int> rhs; - rhs.push_back(1); - rhs.push_back(2); - rhs.push_back(3); - const Matcher<const vector<int>&> m = Pointwise(IsHalfOf(), rhs); - EXPECT_EQ("contains 3 values, where each value and its corresponding value " - "in { 1, 2, 3 } are a pair where the first is half of the second", - Describe(m)); - EXPECT_EQ("doesn't contain exactly 3 values, or contains a value x at some " - "index i where x and the i-th value of { 1, 2, 3 } are a pair " - "where the first isn't half of the second", - DescribeNegation(m)); -} - -TEST(PointwiseTest, MakesCopyOfRhs) { - list<signed char> rhs; - rhs.push_back(2); - rhs.push_back(4); - - int lhs[] = {1, 2}; - const Matcher<const int (&)[2]> m = Pointwise(IsHalfOf(), rhs); - EXPECT_THAT(lhs, m); - - // Changing rhs now shouldn't affect m, which made a copy of rhs. - rhs.push_back(6); - EXPECT_THAT(lhs, m); -} - -TEST(PointwiseTest, WorksForLhsNativeArray) { - const int lhs[] = {1, 2, 3}; - vector<int> rhs; - rhs.push_back(2); - rhs.push_back(4); - rhs.push_back(6); - EXPECT_THAT(lhs, Pointwise(Lt(), rhs)); - EXPECT_THAT(lhs, Not(Pointwise(Gt(), rhs))); -} - -TEST(PointwiseTest, WorksForRhsNativeArray) { - const int rhs[] = {1, 2, 3}; - vector<int> lhs; - lhs.push_back(2); - lhs.push_back(4); - lhs.push_back(6); - EXPECT_THAT(lhs, Pointwise(Gt(), rhs)); - EXPECT_THAT(lhs, Not(Pointwise(Lt(), rhs))); -} - -// Test is effective only with sanitizers. -TEST(PointwiseTest, WorksForVectorOfBool) { - vector<bool> rhs(3, false); - rhs[1] = true; - vector<bool> lhs = rhs; - EXPECT_THAT(lhs, Pointwise(Eq(), rhs)); - rhs[0] = true; - EXPECT_THAT(lhs, Not(Pointwise(Eq(), rhs))); -} - - -TEST(PointwiseTest, WorksForRhsInitializerList) { - const vector<int> lhs{2, 4, 6}; - EXPECT_THAT(lhs, Pointwise(Gt(), {1, 2, 3})); - EXPECT_THAT(lhs, Not(Pointwise(Lt(), {3, 3, 7}))); -} - - -TEST(PointwiseTest, RejectsWrongSize) { - const double lhs[2] = {1, 2}; - const int rhs[1] = {0}; - EXPECT_THAT(lhs, Not(Pointwise(Gt(), rhs))); - EXPECT_EQ("which contains 2 values", - Explain(Pointwise(Gt(), rhs), lhs)); - - const int rhs2[3] = {0, 1, 2}; - EXPECT_THAT(lhs, Not(Pointwise(Gt(), rhs2))); -} - -TEST(PointwiseTest, RejectsWrongContent) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {2, 6, 4}; - EXPECT_THAT(lhs, Not(Pointwise(IsHalfOf(), rhs))); - EXPECT_EQ("where the value pair (2, 6) at index #1 don't match, " - "where the second/2 is 3", - Explain(Pointwise(IsHalfOf(), rhs), lhs)); -} - -TEST(PointwiseTest, AcceptsCorrectContent) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {2, 4, 6}; - EXPECT_THAT(lhs, Pointwise(IsHalfOf(), rhs)); - EXPECT_EQ("", Explain(Pointwise(IsHalfOf(), rhs), lhs)); -} - -TEST(PointwiseTest, AllowsMonomorphicInnerMatcher) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {2, 4, 6}; - const Matcher<std::tuple<const double&, const int&>> m1 = IsHalfOf(); - EXPECT_THAT(lhs, Pointwise(m1, rhs)); - EXPECT_EQ("", Explain(Pointwise(m1, rhs), lhs)); - - // This type works as a std::tuple<const double&, const int&> can be - // implicitly cast to std::tuple<double, int>. - const Matcher<std::tuple<double, int>> m2 = IsHalfOf(); - EXPECT_THAT(lhs, Pointwise(m2, rhs)); - EXPECT_EQ("", Explain(Pointwise(m2, rhs), lhs)); -} - -MATCHER(PointeeEquals, "Points to an equal value") { - return ExplainMatchResult(::testing::Pointee(::testing::get<1>(arg)), - ::testing::get<0>(arg), result_listener); -} - -TEST(PointwiseTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(Pointwise(PointeeEquals(), std::vector<int>{1, 2}))); - helper.Call(MakeUniquePtrs({1, 2})); -} - -TEST(UnorderedPointwiseTest, DescribesSelf) { - vector<int> rhs; - rhs.push_back(1); - rhs.push_back(2); - rhs.push_back(3); - const Matcher<const vector<int>&> m = UnorderedPointwise(IsHalfOf(), rhs); - EXPECT_EQ( - "has 3 elements and there exists some permutation of elements such " - "that:\n" - " - element #0 and 1 are a pair where the first is half of the second, " - "and\n" - " - element #1 and 2 are a pair where the first is half of the second, " - "and\n" - " - element #2 and 3 are a pair where the first is half of the second", - Describe(m)); - EXPECT_EQ( - "doesn't have 3 elements, or there exists no permutation of elements " - "such that:\n" - " - element #0 and 1 are a pair where the first is half of the second, " - "and\n" - " - element #1 and 2 are a pair where the first is half of the second, " - "and\n" - " - element #2 and 3 are a pair where the first is half of the second", - DescribeNegation(m)); -} - -TEST(UnorderedPointwiseTest, MakesCopyOfRhs) { - list<signed char> rhs; - rhs.push_back(2); - rhs.push_back(4); - - int lhs[] = {2, 1}; - const Matcher<const int (&)[2]> m = UnorderedPointwise(IsHalfOf(), rhs); - EXPECT_THAT(lhs, m); - - // Changing rhs now shouldn't affect m, which made a copy of rhs. - rhs.push_back(6); - EXPECT_THAT(lhs, m); -} - -TEST(UnorderedPointwiseTest, WorksForLhsNativeArray) { - const int lhs[] = {1, 2, 3}; - vector<int> rhs; - rhs.push_back(4); - rhs.push_back(6); - rhs.push_back(2); - EXPECT_THAT(lhs, UnorderedPointwise(Lt(), rhs)); - EXPECT_THAT(lhs, Not(UnorderedPointwise(Gt(), rhs))); -} - -TEST(UnorderedPointwiseTest, WorksForRhsNativeArray) { - const int rhs[] = {1, 2, 3}; - vector<int> lhs; - lhs.push_back(4); - lhs.push_back(2); - lhs.push_back(6); - EXPECT_THAT(lhs, UnorderedPointwise(Gt(), rhs)); - EXPECT_THAT(lhs, Not(UnorderedPointwise(Lt(), rhs))); -} - - -TEST(UnorderedPointwiseTest, WorksForRhsInitializerList) { - const vector<int> lhs{2, 4, 6}; - EXPECT_THAT(lhs, UnorderedPointwise(Gt(), {5, 1, 3})); - EXPECT_THAT(lhs, Not(UnorderedPointwise(Lt(), {1, 1, 7}))); -} - - -TEST(UnorderedPointwiseTest, RejectsWrongSize) { - const double lhs[2] = {1, 2}; - const int rhs[1] = {0}; - EXPECT_THAT(lhs, Not(UnorderedPointwise(Gt(), rhs))); - EXPECT_EQ("which has 2 elements", - Explain(UnorderedPointwise(Gt(), rhs), lhs)); - - const int rhs2[3] = {0, 1, 2}; - EXPECT_THAT(lhs, Not(UnorderedPointwise(Gt(), rhs2))); -} - -TEST(UnorderedPointwiseTest, RejectsWrongContent) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {2, 6, 6}; - EXPECT_THAT(lhs, Not(UnorderedPointwise(IsHalfOf(), rhs))); - EXPECT_EQ("where the following elements don't match any matchers:\n" - "element #1: 2", - Explain(UnorderedPointwise(IsHalfOf(), rhs), lhs)); -} - -TEST(UnorderedPointwiseTest, AcceptsCorrectContentInSameOrder) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {2, 4, 6}; - EXPECT_THAT(lhs, UnorderedPointwise(IsHalfOf(), rhs)); -} - -TEST(UnorderedPointwiseTest, AcceptsCorrectContentInDifferentOrder) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {6, 4, 2}; - EXPECT_THAT(lhs, UnorderedPointwise(IsHalfOf(), rhs)); -} - -TEST(UnorderedPointwiseTest, AllowsMonomorphicInnerMatcher) { - const double lhs[3] = {1, 2, 3}; - const int rhs[3] = {4, 6, 2}; - const Matcher<std::tuple<const double&, const int&>> m1 = IsHalfOf(); - EXPECT_THAT(lhs, UnorderedPointwise(m1, rhs)); - - // This type works as a std::tuple<const double&, const int&> can be - // implicitly cast to std::tuple<double, int>. - const Matcher<std::tuple<double, int>> m2 = IsHalfOf(); - EXPECT_THAT(lhs, UnorderedPointwise(m2, rhs)); -} - -TEST(UnorderedPointwiseTest, WorksWithMoveOnly) { - ContainerHelper helper; - EXPECT_CALL(helper, Call(UnorderedPointwise(PointeeEquals(), - std::vector<int>{1, 2}))); - helper.Call(MakeUniquePtrs({2, 1})); -} - -// Sample optional type implementation with minimal requirements for use with -// Optional matcher. -template <typename T> -class SampleOptional { - public: - using value_type = T; - explicit SampleOptional(T value) - : value_(std::move(value)), has_value_(true) {} - SampleOptional() : value_(), has_value_(false) {} - operator bool() const { return has_value_; } - const T& operator*() const { return value_; } - - private: - T value_; - bool has_value_; -}; - -TEST(OptionalTest, DescribesSelf) { - const Matcher<SampleOptional<int>> m = Optional(Eq(1)); - EXPECT_EQ("value is equal to 1", Describe(m)); -} - -TEST(OptionalTest, ExplainsSelf) { - const Matcher<SampleOptional<int>> m = Optional(Eq(1)); - EXPECT_EQ("whose value 1 matches", Explain(m, SampleOptional<int>(1))); - EXPECT_EQ("whose value 2 doesn't match", Explain(m, SampleOptional<int>(2))); -} - -TEST(OptionalTest, MatchesNonEmptyOptional) { - const Matcher<SampleOptional<int>> m1 = Optional(1); - const Matcher<SampleOptional<int>> m2 = Optional(Eq(2)); - const Matcher<SampleOptional<int>> m3 = Optional(Lt(3)); - SampleOptional<int> opt(1); - EXPECT_TRUE(m1.Matches(opt)); - EXPECT_FALSE(m2.Matches(opt)); - EXPECT_TRUE(m3.Matches(opt)); -} - -TEST(OptionalTest, DoesNotMatchNullopt) { - const Matcher<SampleOptional<int>> m = Optional(1); - SampleOptional<int> empty; - EXPECT_FALSE(m.Matches(empty)); -} - -TEST(OptionalTest, WorksWithMoveOnly) { - Matcher<SampleOptional<std::unique_ptr<int>>> m = Optional(Eq(nullptr)); - EXPECT_TRUE(m.Matches(SampleOptional<std::unique_ptr<int>>(nullptr))); -} - -class SampleVariantIntString { - public: - SampleVariantIntString(int i) : i_(i), has_int_(true) {} - SampleVariantIntString(const std::string& s) : s_(s), has_int_(false) {} - - template <typename T> - friend bool holds_alternative(const SampleVariantIntString& value) { - return value.has_int_ == std::is_same<T, int>::value; - } - - template <typename T> - friend const T& get(const SampleVariantIntString& value) { - return value.get_impl(static_cast<T*>(nullptr)); - } - - private: - const int& get_impl(int*) const { return i_; } - const std::string& get_impl(std::string*) const { return s_; } - - int i_; - std::string s_; - bool has_int_; -}; - -TEST(VariantTest, DescribesSelf) { - const Matcher<SampleVariantIntString> m = VariantWith<int>(Eq(1)); - EXPECT_THAT(Describe(m), ContainsRegex("is a variant<> with value of type " - "'.*' and the value is equal to 1")); -} - -TEST(VariantTest, ExplainsSelf) { - const Matcher<SampleVariantIntString> m = VariantWith<int>(Eq(1)); - EXPECT_THAT(Explain(m, SampleVariantIntString(1)), - ContainsRegex("whose value 1")); - EXPECT_THAT(Explain(m, SampleVariantIntString("A")), - HasSubstr("whose value is not of type '")); - EXPECT_THAT(Explain(m, SampleVariantIntString(2)), - "whose value 2 doesn't match"); -} - -TEST(VariantTest, FullMatch) { - Matcher<SampleVariantIntString> m = VariantWith<int>(Eq(1)); - EXPECT_TRUE(m.Matches(SampleVariantIntString(1))); - - m = VariantWith<std::string>(Eq("1")); - EXPECT_TRUE(m.Matches(SampleVariantIntString("1"))); -} - -TEST(VariantTest, TypeDoesNotMatch) { - Matcher<SampleVariantIntString> m = VariantWith<int>(Eq(1)); - EXPECT_FALSE(m.Matches(SampleVariantIntString("1"))); - - m = VariantWith<std::string>(Eq("1")); - EXPECT_FALSE(m.Matches(SampleVariantIntString(1))); -} - -TEST(VariantTest, InnerDoesNotMatch) { - Matcher<SampleVariantIntString> m = VariantWith<int>(Eq(1)); - EXPECT_FALSE(m.Matches(SampleVariantIntString(2))); - - m = VariantWith<std::string>(Eq("1")); - EXPECT_FALSE(m.Matches(SampleVariantIntString("2"))); -} - -class SampleAnyType { - public: - explicit SampleAnyType(int i) : index_(0), i_(i) {} - explicit SampleAnyType(const std::string& s) : index_(1), s_(s) {} - - template <typename T> - friend const T* any_cast(const SampleAnyType* any) { - return any->get_impl(static_cast<T*>(nullptr)); - } - - private: - int index_; - int i_; - std::string s_; - - const int* get_impl(int*) const { return index_ == 0 ? &i_ : nullptr; } - const std::string* get_impl(std::string*) const { - return index_ == 1 ? &s_ : nullptr; - } -}; - -TEST(AnyWithTest, FullMatch) { - Matcher<SampleAnyType> m = AnyWith<int>(Eq(1)); - EXPECT_TRUE(m.Matches(SampleAnyType(1))); -} - -TEST(AnyWithTest, TestBadCastType) { - Matcher<SampleAnyType> m = AnyWith<std::string>(Eq("fail")); - EXPECT_FALSE(m.Matches(SampleAnyType(1))); -} - -TEST(AnyWithTest, TestUseInContainers) { - std::vector<SampleAnyType> a; - a.emplace_back(1); - a.emplace_back(2); - a.emplace_back(3); - EXPECT_THAT( - a, ElementsAreArray({AnyWith<int>(1), AnyWith<int>(2), AnyWith<int>(3)})); - - std::vector<SampleAnyType> b; - b.emplace_back("hello"); - b.emplace_back("merhaba"); - b.emplace_back("salut"); - EXPECT_THAT(b, ElementsAreArray({AnyWith<std::string>("hello"), - AnyWith<std::string>("merhaba"), - AnyWith<std::string>("salut")})); -} -TEST(AnyWithTest, TestCompare) { - EXPECT_THAT(SampleAnyType(1), AnyWith<int>(Gt(0))); -} - -TEST(AnyWithTest, DescribesSelf) { - const Matcher<const SampleAnyType&> m = AnyWith<int>(Eq(1)); - EXPECT_THAT(Describe(m), ContainsRegex("is an 'any' type with value of type " - "'.*' and the value is equal to 1")); -} - -TEST(AnyWithTest, ExplainsSelf) { - const Matcher<const SampleAnyType&> m = AnyWith<int>(Eq(1)); - - EXPECT_THAT(Explain(m, SampleAnyType(1)), ContainsRegex("whose value 1")); - EXPECT_THAT(Explain(m, SampleAnyType("A")), - HasSubstr("whose value is not of type '")); - EXPECT_THAT(Explain(m, SampleAnyType(2)), "whose value 2 doesn't match"); -} - -TEST(PointeeTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, Pointee(Eq(3))); - EXPECT_THAT(p, Not(Pointee(Eq(2)))); -} - -TEST(NotTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, Pointee(Eq(3))); - EXPECT_THAT(p, Not(Pointee(Eq(2)))); -} - -// Tests Args<k0, ..., kn>(m). - -TEST(ArgsTest, AcceptsZeroTemplateArg) { - const std::tuple<int, bool> t(5, true); - EXPECT_THAT(t, Args<>(Eq(std::tuple<>()))); - EXPECT_THAT(t, Not(Args<>(Ne(std::tuple<>())))); -} - -TEST(ArgsTest, AcceptsOneTemplateArg) { - const std::tuple<int, bool> t(5, true); - EXPECT_THAT(t, Args<0>(Eq(std::make_tuple(5)))); - EXPECT_THAT(t, Args<1>(Eq(std::make_tuple(true)))); - EXPECT_THAT(t, Not(Args<1>(Eq(std::make_tuple(false))))); -} - -TEST(ArgsTest, AcceptsTwoTemplateArgs) { - const std::tuple<short, int, long> t(4, 5, 6L); // NOLINT - - EXPECT_THAT(t, (Args<0, 1>(Lt()))); - EXPECT_THAT(t, (Args<1, 2>(Lt()))); - EXPECT_THAT(t, Not(Args<0, 2>(Gt()))); -} - -TEST(ArgsTest, AcceptsRepeatedTemplateArgs) { - const std::tuple<short, int, long> t(4, 5, 6L); // NOLINT - EXPECT_THAT(t, (Args<0, 0>(Eq()))); - EXPECT_THAT(t, Not(Args<1, 1>(Ne()))); -} - -TEST(ArgsTest, AcceptsDecreasingTemplateArgs) { - const std::tuple<short, int, long> t(4, 5, 6L); // NOLINT - EXPECT_THAT(t, (Args<2, 0>(Gt()))); - EXPECT_THAT(t, Not(Args<2, 1>(Lt()))); -} - -MATCHER(SumIsZero, "") { - return std::get<0>(arg) + std::get<1>(arg) + std::get<2>(arg) == 0; -} - -TEST(ArgsTest, AcceptsMoreTemplateArgsThanArityOfOriginalTuple) { - EXPECT_THAT(std::make_tuple(-1, 2), (Args<0, 0, 1>(SumIsZero()))); - EXPECT_THAT(std::make_tuple(1, 2), Not(Args<0, 0, 1>(SumIsZero()))); -} - -TEST(ArgsTest, CanBeNested) { - const std::tuple<short, int, long, int> t(4, 5, 6L, 6); // NOLINT - EXPECT_THAT(t, (Args<1, 2, 3>(Args<1, 2>(Eq())))); - EXPECT_THAT(t, (Args<0, 1, 3>(Args<0, 2>(Lt())))); -} - -TEST(ArgsTest, CanMatchTupleByValue) { - typedef std::tuple<char, int, int> Tuple3; - const Matcher<Tuple3> m = Args<1, 2>(Lt()); - EXPECT_TRUE(m.Matches(Tuple3('a', 1, 2))); - EXPECT_FALSE(m.Matches(Tuple3('b', 2, 2))); -} - -TEST(ArgsTest, CanMatchTupleByReference) { - typedef std::tuple<char, char, int> Tuple3; - const Matcher<const Tuple3&> m = Args<0, 1>(Lt()); - EXPECT_TRUE(m.Matches(Tuple3('a', 'b', 2))); - EXPECT_FALSE(m.Matches(Tuple3('b', 'b', 2))); -} - -// Validates that arg is printed as str. -MATCHER_P(PrintsAs, str, "") { - return testing::PrintToString(arg) == str; -} - -TEST(ArgsTest, AcceptsTenTemplateArgs) { - EXPECT_THAT(std::make_tuple(0, 1L, 2, 3L, 4, 5, 6, 7, 8, 9), - (Args<9, 8, 7, 6, 5, 4, 3, 2, 1, 0>( - PrintsAs("(9, 8, 7, 6, 5, 4, 3, 2, 1, 0)")))); - EXPECT_THAT(std::make_tuple(0, 1L, 2, 3L, 4, 5, 6, 7, 8, 9), - Not(Args<9, 8, 7, 6, 5, 4, 3, 2, 1, 0>( - PrintsAs("(0, 8, 7, 6, 5, 4, 3, 2, 1, 0)")))); -} - -TEST(ArgsTest, DescirbesSelfCorrectly) { - const Matcher<std::tuple<int, bool, char> > m = Args<2, 0>(Lt()); - EXPECT_EQ("are a tuple whose fields (#2, #0) are a pair where " - "the first < the second", - Describe(m)); -} - -TEST(ArgsTest, DescirbesNestedArgsCorrectly) { - const Matcher<const std::tuple<int, bool, char, int>&> m = - Args<0, 2, 3>(Args<2, 0>(Lt())); - EXPECT_EQ("are a tuple whose fields (#0, #2, #3) are a tuple " - "whose fields (#2, #0) are a pair where the first < the second", - Describe(m)); -} - -TEST(ArgsTest, DescribesNegationCorrectly) { - const Matcher<std::tuple<int, char> > m = Args<1, 0>(Gt()); - EXPECT_EQ("are a tuple whose fields (#1, #0) aren't a pair " - "where the first > the second", - DescribeNegation(m)); -} - -TEST(ArgsTest, ExplainsMatchResultWithoutInnerExplanation) { - const Matcher<std::tuple<bool, int, int> > m = Args<1, 2>(Eq()); - EXPECT_EQ("whose fields (#1, #2) are (42, 42)", - Explain(m, std::make_tuple(false, 42, 42))); - EXPECT_EQ("whose fields (#1, #2) are (42, 43)", - Explain(m, std::make_tuple(false, 42, 43))); -} - -// For testing Args<>'s explanation. -class LessThanMatcher : public MatcherInterface<std::tuple<char, int> > { - public: - void DescribeTo(::std::ostream* /*os*/) const override {} - - bool MatchAndExplain(std::tuple<char, int> value, - MatchResultListener* listener) const override { - const int diff = std::get<0>(value) - std::get<1>(value); - if (diff > 0) { - *listener << "where the first value is " << diff - << " more than the second"; - } - return diff < 0; - } -}; - -Matcher<std::tuple<char, int> > LessThan() { - return MakeMatcher(new LessThanMatcher); -} - -TEST(ArgsTest, ExplainsMatchResultWithInnerExplanation) { - const Matcher<std::tuple<char, int, int> > m = Args<0, 2>(LessThan()); - EXPECT_EQ( - "whose fields (#0, #2) are ('a' (97, 0x61), 42), " - "where the first value is 55 more than the second", - Explain(m, std::make_tuple('a', 42, 42))); - EXPECT_EQ("whose fields (#0, #2) are ('\\0', 43)", - Explain(m, std::make_tuple('\0', 42, 43))); -} - -class PredicateFormatterFromMatcherTest : public ::testing::Test { - protected: - enum Behavior { kInitialSuccess, kAlwaysFail, kFlaky }; - - // A matcher that can return different results when used multiple times on the - // same input. No real matcher should do this; but this lets us test that we - // detect such behavior and fail appropriately. - class MockMatcher : public MatcherInterface<Behavior> { - public: - bool MatchAndExplain(Behavior behavior, - MatchResultListener* listener) const override { - *listener << "[MatchAndExplain]"; - switch (behavior) { - case kInitialSuccess: - // The first call to MatchAndExplain should use a "not interested" - // listener; so this is expected to return |true|. There should be no - // subsequent calls. - return !listener->IsInterested(); - - case kAlwaysFail: - return false; - - case kFlaky: - // The first call to MatchAndExplain should use a "not interested" - // listener; so this will return |false|. Subsequent calls should have - // an "interested" listener; so this will return |true|, thus - // simulating a flaky matcher. - return listener->IsInterested(); - } - - GTEST_LOG_(FATAL) << "This should never be reached"; - return false; - } - - void DescribeTo(ostream* os) const override { *os << "[DescribeTo]"; } - - void DescribeNegationTo(ostream* os) const override { - *os << "[DescribeNegationTo]"; - } - }; - - AssertionResult RunPredicateFormatter(Behavior behavior) { - auto matcher = MakeMatcher(new MockMatcher); - PredicateFormatterFromMatcher<Matcher<Behavior>> predicate_formatter( - matcher); - return predicate_formatter("dummy-name", behavior); - } -}; - -TEST_F(PredicateFormatterFromMatcherTest, ShortCircuitOnSuccess) { - AssertionResult result = RunPredicateFormatter(kInitialSuccess); - EXPECT_TRUE(result); // Implicit cast to bool. - std::string expect; - EXPECT_EQ(expect, result.message()); -} - -TEST_F(PredicateFormatterFromMatcherTest, NoShortCircuitOnFailure) { - AssertionResult result = RunPredicateFormatter(kAlwaysFail); - EXPECT_FALSE(result); // Implicit cast to bool. - std::string expect = - "Value of: dummy-name\nExpected: [DescribeTo]\n" - " Actual: 1" + - OfType(internal::GetTypeName<Behavior>()) + ", [MatchAndExplain]"; - EXPECT_EQ(expect, result.message()); -} - -TEST_F(PredicateFormatterFromMatcherTest, DetectsFlakyShortCircuit) { - AssertionResult result = RunPredicateFormatter(kFlaky); - EXPECT_FALSE(result); // Implicit cast to bool. - std::string expect = - "Value of: dummy-name\nExpected: [DescribeTo]\n" - " The matcher failed on the initial attempt; but passed when rerun to " - "generate the explanation.\n" - " Actual: 2" + - OfType(internal::GetTypeName<Behavior>()) + ", [MatchAndExplain]"; - EXPECT_EQ(expect, result.message()); -} - -// Tests for ElementsAre(). - -TEST(ElementsAreTest, CanDescribeExpectingNoElement) { - Matcher<const vector<int>&> m = ElementsAre(); - EXPECT_EQ("is empty", Describe(m)); -} - -TEST(ElementsAreTest, CanDescribeExpectingOneElement) { - Matcher<vector<int>> m = ElementsAre(Gt(5)); - EXPECT_EQ("has 1 element that is > 5", Describe(m)); -} - -TEST(ElementsAreTest, CanDescribeExpectingManyElements) { - Matcher<list<std::string>> m = ElementsAre(StrEq("one"), "two"); - EXPECT_EQ( - "has 2 elements where\n" - "element #0 is equal to \"one\",\n" - "element #1 is equal to \"two\"", - Describe(m)); -} - -TEST(ElementsAreTest, CanDescribeNegationOfExpectingNoElement) { - Matcher<vector<int>> m = ElementsAre(); - EXPECT_EQ("isn't empty", DescribeNegation(m)); -} - -TEST(ElementsAreTest, CanDescribeNegationOfExpectingOneElment) { - Matcher<const list<int>&> m = ElementsAre(Gt(5)); - EXPECT_EQ( - "doesn't have 1 element, or\n" - "element #0 isn't > 5", - DescribeNegation(m)); -} - -TEST(ElementsAreTest, CanDescribeNegationOfExpectingManyElements) { - Matcher<const list<std::string>&> m = ElementsAre("one", "two"); - EXPECT_EQ( - "doesn't have 2 elements, or\n" - "element #0 isn't equal to \"one\", or\n" - "element #1 isn't equal to \"two\"", - DescribeNegation(m)); -} - -TEST(ElementsAreTest, DoesNotExplainTrivialMatch) { - Matcher<const list<int>&> m = ElementsAre(1, Ne(2)); - - list<int> test_list; - test_list.push_back(1); - test_list.push_back(3); - EXPECT_EQ("", Explain(m, test_list)); // No need to explain anything. -} - -TEST(ElementsAreTest, ExplainsNonTrivialMatch) { - Matcher<const vector<int>&> m = - ElementsAre(GreaterThan(1), 0, GreaterThan(2)); - - const int a[] = {10, 0, 100}; - vector<int> test_vector(std::begin(a), std::end(a)); - EXPECT_EQ( - "whose element #0 matches, which is 9 more than 1,\n" - "and whose element #2 matches, which is 98 more than 2", - Explain(m, test_vector)); -} - -TEST(ElementsAreTest, CanExplainMismatchWrongSize) { - Matcher<const list<int>&> m = ElementsAre(1, 3); - - list<int> test_list; - // No need to explain when the container is empty. - EXPECT_EQ("", Explain(m, test_list)); - - test_list.push_back(1); - EXPECT_EQ("which has 1 element", Explain(m, test_list)); -} - -TEST(ElementsAreTest, CanExplainMismatchRightSize) { - Matcher<const vector<int>&> m = ElementsAre(1, GreaterThan(5)); - - vector<int> v; - v.push_back(2); - v.push_back(1); - EXPECT_EQ("whose element #0 doesn't match", Explain(m, v)); - - v[0] = 1; - EXPECT_EQ("whose element #1 doesn't match, which is 4 less than 5", - Explain(m, v)); -} - -TEST(ElementsAreTest, MatchesOneElementVector) { - vector<std::string> test_vector; - test_vector.push_back("test string"); - - EXPECT_THAT(test_vector, ElementsAre(StrEq("test string"))); -} - -TEST(ElementsAreTest, MatchesOneElementList) { - list<std::string> test_list; - test_list.push_back("test string"); - - EXPECT_THAT(test_list, ElementsAre("test string")); -} - -TEST(ElementsAreTest, MatchesThreeElementVector) { - vector<std::string> test_vector; - test_vector.push_back("one"); - test_vector.push_back("two"); - test_vector.push_back("three"); - - EXPECT_THAT(test_vector, ElementsAre("one", StrEq("two"), _)); -} - -TEST(ElementsAreTest, MatchesOneElementEqMatcher) { - vector<int> test_vector; - test_vector.push_back(4); - - EXPECT_THAT(test_vector, ElementsAre(Eq(4))); -} - -TEST(ElementsAreTest, MatchesOneElementAnyMatcher) { - vector<int> test_vector; - test_vector.push_back(4); - - EXPECT_THAT(test_vector, ElementsAre(_)); -} - -TEST(ElementsAreTest, MatchesOneElementValue) { - vector<int> test_vector; - test_vector.push_back(4); - - EXPECT_THAT(test_vector, ElementsAre(4)); -} - -TEST(ElementsAreTest, MatchesThreeElementsMixedMatchers) { - vector<int> test_vector; - test_vector.push_back(1); - test_vector.push_back(2); - test_vector.push_back(3); - - EXPECT_THAT(test_vector, ElementsAre(1, Eq(2), _)); -} - -TEST(ElementsAreTest, MatchesTenElementVector) { - const int a[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; - vector<int> test_vector(std::begin(a), std::end(a)); - - EXPECT_THAT(test_vector, - // The element list can contain values and/or matchers - // of different types. - ElementsAre(0, Ge(0), _, 3, 4, Ne(2), Eq(6), 7, 8, _)); -} - -TEST(ElementsAreTest, DoesNotMatchWrongSize) { - vector<std::string> test_vector; - test_vector.push_back("test string"); - test_vector.push_back("test string"); - - Matcher<vector<std::string>> m = ElementsAre(StrEq("test string")); - EXPECT_FALSE(m.Matches(test_vector)); -} - -TEST(ElementsAreTest, DoesNotMatchWrongValue) { - vector<std::string> test_vector; - test_vector.push_back("other string"); - - Matcher<vector<std::string>> m = ElementsAre(StrEq("test string")); - EXPECT_FALSE(m.Matches(test_vector)); -} - -TEST(ElementsAreTest, DoesNotMatchWrongOrder) { - vector<std::string> test_vector; - test_vector.push_back("one"); - test_vector.push_back("three"); - test_vector.push_back("two"); - - Matcher<vector<std::string>> m = - ElementsAre(StrEq("one"), StrEq("two"), StrEq("three")); - EXPECT_FALSE(m.Matches(test_vector)); -} - -TEST(ElementsAreTest, WorksForNestedContainer) { - constexpr std::array<const char*, 2> strings = {{"Hi", "world"}}; - - vector<list<char>> nested; - for (const auto& s : strings) { - nested.emplace_back(s, s + strlen(s)); - } - - EXPECT_THAT(nested, ElementsAre(ElementsAre('H', Ne('e')), - ElementsAre('w', 'o', _, _, 'd'))); - EXPECT_THAT(nested, Not(ElementsAre(ElementsAre('H', 'e'), - ElementsAre('w', 'o', _, _, 'd')))); -} - -TEST(ElementsAreTest, WorksWithByRefElementMatchers) { - int a[] = {0, 1, 2}; - vector<int> v(std::begin(a), std::end(a)); - - EXPECT_THAT(v, ElementsAre(Ref(v[0]), Ref(v[1]), Ref(v[2]))); - EXPECT_THAT(v, Not(ElementsAre(Ref(v[0]), Ref(v[1]), Ref(a[2])))); -} - -TEST(ElementsAreTest, WorksWithContainerPointerUsingPointee) { - int a[] = {0, 1, 2}; - vector<int> v(std::begin(a), std::end(a)); - - EXPECT_THAT(&v, Pointee(ElementsAre(0, 1, _))); - EXPECT_THAT(&v, Not(Pointee(ElementsAre(0, _, 3)))); -} - -TEST(ElementsAreTest, WorksWithNativeArrayPassedByReference) { - int array[] = {0, 1, 2}; - EXPECT_THAT(array, ElementsAre(0, 1, _)); - EXPECT_THAT(array, Not(ElementsAre(1, _, _))); - EXPECT_THAT(array, Not(ElementsAre(0, _))); -} - -class NativeArrayPassedAsPointerAndSize { - public: - NativeArrayPassedAsPointerAndSize() {} - - MOCK_METHOD(void, Helper, (int* array, int size)); - - private: - GTEST_DISALLOW_COPY_AND_ASSIGN_(NativeArrayPassedAsPointerAndSize); -}; - -TEST(ElementsAreTest, WorksWithNativeArrayPassedAsPointerAndSize) { - int array[] = {0, 1}; - ::std::tuple<int*, size_t> array_as_tuple(array, 2); - EXPECT_THAT(array_as_tuple, ElementsAre(0, 1)); - EXPECT_THAT(array_as_tuple, Not(ElementsAre(0))); - - NativeArrayPassedAsPointerAndSize helper; - EXPECT_CALL(helper, Helper(_, _)).With(ElementsAre(0, 1)); - helper.Helper(array, 2); -} - -TEST(ElementsAreTest, WorksWithTwoDimensionalNativeArray) { - const char a2[][3] = {"hi", "lo"}; - EXPECT_THAT(a2, ElementsAre(ElementsAre('h', 'i', '\0'), - ElementsAre('l', 'o', '\0'))); - EXPECT_THAT(a2, ElementsAre(StrEq("hi"), StrEq("lo"))); - EXPECT_THAT(a2, ElementsAre(Not(ElementsAre('h', 'o', '\0')), - ElementsAre('l', 'o', '\0'))); -} - -TEST(ElementsAreTest, AcceptsStringLiteral) { - std::string array[] = {"hi", "one", "two"}; - EXPECT_THAT(array, ElementsAre("hi", "one", "two")); - EXPECT_THAT(array, Not(ElementsAre("hi", "one", "too"))); -} - -// Declared here with the size unknown. Defined AFTER the following test. -extern const char kHi[]; - -TEST(ElementsAreTest, AcceptsArrayWithUnknownSize) { - // The size of kHi is not known in this test, but ElementsAre() should - // still accept it. - - std::string array1[] = {"hi"}; - EXPECT_THAT(array1, ElementsAre(kHi)); - - std::string array2[] = {"ho"}; - EXPECT_THAT(array2, Not(ElementsAre(kHi))); -} - -const char kHi[] = "hi"; - -TEST(ElementsAreTest, MakesCopyOfArguments) { - int x = 1; - int y = 2; - // This should make a copy of x and y. - ::testing::internal::ElementsAreMatcher<std::tuple<int, int>> - polymorphic_matcher = ElementsAre(x, y); - // Changing x and y now shouldn't affect the meaning of the above matcher. - x = y = 0; - const int array1[] = {1, 2}; - EXPECT_THAT(array1, polymorphic_matcher); - const int array2[] = {0, 0}; - EXPECT_THAT(array2, Not(polymorphic_matcher)); -} - -// Tests for ElementsAreArray(). Since ElementsAreArray() shares most -// of the implementation with ElementsAre(), we don't test it as -// thoroughly here. - -TEST(ElementsAreArrayTest, CanBeCreatedWithValueArray) { - const int a[] = {1, 2, 3}; - - vector<int> test_vector(std::begin(a), std::end(a)); - EXPECT_THAT(test_vector, ElementsAreArray(a)); - - test_vector[2] = 0; - EXPECT_THAT(test_vector, Not(ElementsAreArray(a))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithArraySize) { - std::array<const char*, 3> a = {{"one", "two", "three"}}; - - vector<std::string> test_vector(std::begin(a), std::end(a)); - EXPECT_THAT(test_vector, ElementsAreArray(a.data(), a.size())); - - const char** p = a.data(); - test_vector[0] = "1"; - EXPECT_THAT(test_vector, Not(ElementsAreArray(p, a.size()))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithoutArraySize) { - const char* a[] = {"one", "two", "three"}; - - vector<std::string> test_vector(std::begin(a), std::end(a)); - EXPECT_THAT(test_vector, ElementsAreArray(a)); - - test_vector[0] = "1"; - EXPECT_THAT(test_vector, Not(ElementsAreArray(a))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithMatcherArray) { - const Matcher<std::string> kMatcherArray[] = {StrEq("one"), StrEq("two"), - StrEq("three")}; - - vector<std::string> test_vector; - test_vector.push_back("one"); - test_vector.push_back("two"); - test_vector.push_back("three"); - EXPECT_THAT(test_vector, ElementsAreArray(kMatcherArray)); - - test_vector.push_back("three"); - EXPECT_THAT(test_vector, Not(ElementsAreArray(kMatcherArray))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithVector) { - const int a[] = {1, 2, 3}; - vector<int> test_vector(std::begin(a), std::end(a)); - const vector<int> expected(std::begin(a), std::end(a)); - EXPECT_THAT(test_vector, ElementsAreArray(expected)); - test_vector.push_back(4); - EXPECT_THAT(test_vector, Not(ElementsAreArray(expected))); -} - -TEST(ElementsAreArrayTest, TakesInitializerList) { - const int a[5] = {1, 2, 3, 4, 5}; - EXPECT_THAT(a, ElementsAreArray({1, 2, 3, 4, 5})); - EXPECT_THAT(a, Not(ElementsAreArray({1, 2, 3, 5, 4}))); - EXPECT_THAT(a, Not(ElementsAreArray({1, 2, 3, 4, 6}))); -} - -TEST(ElementsAreArrayTest, TakesInitializerListOfCStrings) { - const std::string a[5] = {"a", "b", "c", "d", "e"}; - EXPECT_THAT(a, ElementsAreArray({"a", "b", "c", "d", "e"})); - EXPECT_THAT(a, Not(ElementsAreArray({"a", "b", "c", "e", "d"}))); - EXPECT_THAT(a, Not(ElementsAreArray({"a", "b", "c", "d", "ef"}))); -} - -TEST(ElementsAreArrayTest, TakesInitializerListOfSameTypedMatchers) { - const int a[5] = {1, 2, 3, 4, 5}; - EXPECT_THAT(a, ElementsAreArray({Eq(1), Eq(2), Eq(3), Eq(4), Eq(5)})); - EXPECT_THAT(a, Not(ElementsAreArray({Eq(1), Eq(2), Eq(3), Eq(4), Eq(6)}))); -} - -TEST(ElementsAreArrayTest, TakesInitializerListOfDifferentTypedMatchers) { - const int a[5] = {1, 2, 3, 4, 5}; - // The compiler cannot infer the type of the initializer list if its - // elements have different types. We must explicitly specify the - // unified element type in this case. - EXPECT_THAT( - a, ElementsAreArray<Matcher<int>>({Eq(1), Ne(-2), Ge(3), Le(4), Eq(5)})); - EXPECT_THAT(a, Not(ElementsAreArray<Matcher<int>>( - {Eq(1), Ne(-2), Ge(3), Le(4), Eq(6)}))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithMatcherVector) { - const int a[] = {1, 2, 3}; - const Matcher<int> kMatchers[] = {Eq(1), Eq(2), Eq(3)}; - vector<int> test_vector(std::begin(a), std::end(a)); - const vector<Matcher<int>> expected(std::begin(kMatchers), - std::end(kMatchers)); - EXPECT_THAT(test_vector, ElementsAreArray(expected)); - test_vector.push_back(4); - EXPECT_THAT(test_vector, Not(ElementsAreArray(expected))); -} - -TEST(ElementsAreArrayTest, CanBeCreatedWithIteratorRange) { - const int a[] = {1, 2, 3}; - const vector<int> test_vector(std::begin(a), std::end(a)); - const vector<int> expected(std::begin(a), std::end(a)); - EXPECT_THAT(test_vector, ElementsAreArray(expected.begin(), expected.end())); - // Pointers are iterators, too. - EXPECT_THAT(test_vector, ElementsAreArray(std::begin(a), std::end(a))); - // The empty range of NULL pointers should also be okay. - int* const null_int = nullptr; - EXPECT_THAT(test_vector, Not(ElementsAreArray(null_int, null_int))); - EXPECT_THAT((vector<int>()), ElementsAreArray(null_int, null_int)); -} - -// Since ElementsAre() and ElementsAreArray() share much of the -// implementation, we only do a sanity test for native arrays here. -TEST(ElementsAreArrayTest, WorksWithNativeArray) { - ::std::string a[] = {"hi", "ho"}; - ::std::string b[] = {"hi", "ho"}; - - EXPECT_THAT(a, ElementsAreArray(b)); - EXPECT_THAT(a, ElementsAreArray(b, 2)); - EXPECT_THAT(a, Not(ElementsAreArray(b, 1))); -} - -TEST(ElementsAreArrayTest, SourceLifeSpan) { - const int a[] = {1, 2, 3}; - vector<int> test_vector(std::begin(a), std::end(a)); - vector<int> expect(std::begin(a), std::end(a)); - ElementsAreArrayMatcher<int> matcher_maker = - ElementsAreArray(expect.begin(), expect.end()); - EXPECT_THAT(test_vector, matcher_maker); - // Changing in place the values that initialized matcher_maker should not - // affect matcher_maker anymore. It should have made its own copy of them. - for (int& i : expect) { - i += 10; - } - EXPECT_THAT(test_vector, matcher_maker); - test_vector.push_back(3); - EXPECT_THAT(test_vector, Not(matcher_maker)); -} - -// Tests for the MATCHER*() macro family. - -// Tests that a simple MATCHER() definition works. - -MATCHER(IsEven, "") { return (arg % 2) == 0; } - -TEST(MatcherMacroTest, Works) { - const Matcher<int> m = IsEven(); - EXPECT_TRUE(m.Matches(6)); - EXPECT_FALSE(m.Matches(7)); - - EXPECT_EQ("is even", Describe(m)); - EXPECT_EQ("not (is even)", DescribeNegation(m)); - EXPECT_EQ("", Explain(m, 6)); - EXPECT_EQ("", Explain(m, 7)); -} - -// This also tests that the description string can reference 'negation'. -MATCHER(IsEven2, negation ? "is odd" : "is even") { - if ((arg % 2) == 0) { - // Verifies that we can stream to result_listener, a listener - // supplied by the MATCHER macro implicitly. - *result_listener << "OK"; - return true; - } else { - *result_listener << "% 2 == " << (arg % 2); - return false; - } -} - -// This also tests that the description string can reference matcher -// parameters. -MATCHER_P2(EqSumOf, x, y, - std::string(negation ? "doesn't equal" : "equals") + " the sum of " + - PrintToString(x) + " and " + PrintToString(y)) { - if (arg == (x + y)) { - *result_listener << "OK"; - return true; - } else { - // Verifies that we can stream to the underlying stream of - // result_listener. - if (result_listener->stream() != nullptr) { - *result_listener->stream() << "diff == " << (x + y - arg); - } - return false; - } -} - -// Tests that the matcher description can reference 'negation' and the -// matcher parameters. -TEST(MatcherMacroTest, DescriptionCanReferenceNegationAndParameters) { - const Matcher<int> m1 = IsEven2(); - EXPECT_EQ("is even", Describe(m1)); - EXPECT_EQ("is odd", DescribeNegation(m1)); - - const Matcher<int> m2 = EqSumOf(5, 9); - EXPECT_EQ("equals the sum of 5 and 9", Describe(m2)); - EXPECT_EQ("doesn't equal the sum of 5 and 9", DescribeNegation(m2)); -} - -// Tests explaining match result in a MATCHER* macro. -TEST(MatcherMacroTest, CanExplainMatchResult) { - const Matcher<int> m1 = IsEven2(); - EXPECT_EQ("OK", Explain(m1, 4)); - EXPECT_EQ("% 2 == 1", Explain(m1, 5)); - - const Matcher<int> m2 = EqSumOf(1, 2); - EXPECT_EQ("OK", Explain(m2, 3)); - EXPECT_EQ("diff == -1", Explain(m2, 4)); -} - -// Tests that the body of MATCHER() can reference the type of the -// value being matched. - -MATCHER(IsEmptyString, "") { - StaticAssertTypeEq<::std::string, arg_type>(); - return arg.empty(); -} - -MATCHER(IsEmptyStringByRef, "") { - StaticAssertTypeEq<const ::std::string&, arg_type>(); - return arg.empty(); -} - -TEST(MatcherMacroTest, CanReferenceArgType) { - const Matcher<::std::string> m1 = IsEmptyString(); - EXPECT_TRUE(m1.Matches("")); - - const Matcher<const ::std::string&> m2 = IsEmptyStringByRef(); - EXPECT_TRUE(m2.Matches("")); -} - -// Tests that MATCHER() can be used in a namespace. - -namespace matcher_test { -MATCHER(IsOdd, "") { return (arg % 2) != 0; } -} // namespace matcher_test - -TEST(MatcherMacroTest, WorksInNamespace) { - Matcher<int> m = matcher_test::IsOdd(); - EXPECT_FALSE(m.Matches(4)); - EXPECT_TRUE(m.Matches(5)); -} - -// Tests that Value() can be used to compose matchers. -MATCHER(IsPositiveOdd, "") { - return Value(arg, matcher_test::IsOdd()) && arg > 0; -} - -TEST(MatcherMacroTest, CanBeComposedUsingValue) { - EXPECT_THAT(3, IsPositiveOdd()); - EXPECT_THAT(4, Not(IsPositiveOdd())); - EXPECT_THAT(-1, Not(IsPositiveOdd())); -} - -// Tests that a simple MATCHER_P() definition works. - -MATCHER_P(IsGreaterThan32And, n, "") { return arg > 32 && arg > n; } - -TEST(MatcherPMacroTest, Works) { - const Matcher<int> m = IsGreaterThan32And(5); - EXPECT_TRUE(m.Matches(36)); - EXPECT_FALSE(m.Matches(5)); - - EXPECT_EQ("is greater than 32 and 5", Describe(m)); - EXPECT_EQ("not (is greater than 32 and 5)", DescribeNegation(m)); - EXPECT_EQ("", Explain(m, 36)); - EXPECT_EQ("", Explain(m, 5)); -} - -// Tests that the description is calculated correctly from the matcher name. -MATCHER_P(_is_Greater_Than32and_, n, "") { return arg > 32 && arg > n; } - -TEST(MatcherPMacroTest, GeneratesCorrectDescription) { - const Matcher<int> m = _is_Greater_Than32and_(5); - - EXPECT_EQ("is greater than 32 and 5", Describe(m)); - EXPECT_EQ("not (is greater than 32 and 5)", DescribeNegation(m)); - EXPECT_EQ("", Explain(m, 36)); - EXPECT_EQ("", Explain(m, 5)); -} - -// Tests that a MATCHER_P matcher can be explicitly instantiated with -// a reference parameter type. - -class UncopyableFoo { - public: - explicit UncopyableFoo(char value) : value_(value) { (void)value_; } - - UncopyableFoo(const UncopyableFoo&) = delete; - void operator=(const UncopyableFoo&) = delete; - - private: - char value_; -}; - -MATCHER_P(ReferencesUncopyable, variable, "") { return &arg == &variable; } - -TEST(MatcherPMacroTest, WorksWhenExplicitlyInstantiatedWithReference) { - UncopyableFoo foo1('1'), foo2('2'); - const Matcher<const UncopyableFoo&> m = - ReferencesUncopyable<const UncopyableFoo&>(foo1); - - EXPECT_TRUE(m.Matches(foo1)); - EXPECT_FALSE(m.Matches(foo2)); - - // We don't want the address of the parameter printed, as most - // likely it will just annoy the user. If the address is - // interesting, the user should consider passing the parameter by - // pointer instead. - EXPECT_EQ("references uncopyable 1-byte object <31>", Describe(m)); -} - -// Tests that the body of MATCHER_Pn() can reference the parameter -// types. - -MATCHER_P3(ParamTypesAreIntLongAndChar, foo, bar, baz, "") { - StaticAssertTypeEq<int, foo_type>(); - StaticAssertTypeEq<long, bar_type>(); // NOLINT - StaticAssertTypeEq<char, baz_type>(); - return arg == 0; -} - -TEST(MatcherPnMacroTest, CanReferenceParamTypes) { - EXPECT_THAT(0, ParamTypesAreIntLongAndChar(10, 20L, 'a')); -} - -// Tests that a MATCHER_Pn matcher can be explicitly instantiated with -// reference parameter types. - -MATCHER_P2(ReferencesAnyOf, variable1, variable2, "") { - return &arg == &variable1 || &arg == &variable2; -} - -TEST(MatcherPnMacroTest, WorksWhenExplicitlyInstantiatedWithReferences) { - UncopyableFoo foo1('1'), foo2('2'), foo3('3'); - const Matcher<const UncopyableFoo&> const_m = - ReferencesAnyOf<const UncopyableFoo&, const UncopyableFoo&>(foo1, foo2); - - EXPECT_TRUE(const_m.Matches(foo1)); - EXPECT_TRUE(const_m.Matches(foo2)); - EXPECT_FALSE(const_m.Matches(foo3)); - - const Matcher<UncopyableFoo&> m = - ReferencesAnyOf<UncopyableFoo&, UncopyableFoo&>(foo1, foo2); - - EXPECT_TRUE(m.Matches(foo1)); - EXPECT_TRUE(m.Matches(foo2)); - EXPECT_FALSE(m.Matches(foo3)); -} - -TEST(MatcherPnMacroTest, - GeneratesCorretDescriptionWhenExplicitlyInstantiatedWithReferences) { - UncopyableFoo foo1('1'), foo2('2'); - const Matcher<const UncopyableFoo&> m = - ReferencesAnyOf<const UncopyableFoo&, const UncopyableFoo&>(foo1, foo2); - - // We don't want the addresses of the parameters printed, as most - // likely they will just annoy the user. If the addresses are - // interesting, the user should consider passing the parameters by - // pointers instead. - EXPECT_EQ("references any of (1-byte object <31>, 1-byte object <32>)", - Describe(m)); -} - -// Tests that a simple MATCHER_P2() definition works. - -MATCHER_P2(IsNotInClosedRange, low, hi, "") { return arg < low || arg > hi; } - -TEST(MatcherPnMacroTest, Works) { - const Matcher<const long&> m = IsNotInClosedRange(10, 20); // NOLINT - EXPECT_TRUE(m.Matches(36L)); - EXPECT_FALSE(m.Matches(15L)); - - EXPECT_EQ("is not in closed range (10, 20)", Describe(m)); - EXPECT_EQ("not (is not in closed range (10, 20))", DescribeNegation(m)); - EXPECT_EQ("", Explain(m, 36L)); - EXPECT_EQ("", Explain(m, 15L)); -} - -// Tests that MATCHER*() definitions can be overloaded on the number -// of parameters; also tests MATCHER_Pn() where n >= 3. - -MATCHER(EqualsSumOf, "") { return arg == 0; } -MATCHER_P(EqualsSumOf, a, "") { return arg == a; } -MATCHER_P2(EqualsSumOf, a, b, "") { return arg == a + b; } -MATCHER_P3(EqualsSumOf, a, b, c, "") { return arg == a + b + c; } -MATCHER_P4(EqualsSumOf, a, b, c, d, "") { return arg == a + b + c + d; } -MATCHER_P5(EqualsSumOf, a, b, c, d, e, "") { return arg == a + b + c + d + e; } -MATCHER_P6(EqualsSumOf, a, b, c, d, e, f, "") { - return arg == a + b + c + d + e + f; -} -MATCHER_P7(EqualsSumOf, a, b, c, d, e, f, g, "") { - return arg == a + b + c + d + e + f + g; -} -MATCHER_P8(EqualsSumOf, a, b, c, d, e, f, g, h, "") { - return arg == a + b + c + d + e + f + g + h; -} -MATCHER_P9(EqualsSumOf, a, b, c, d, e, f, g, h, i, "") { - return arg == a + b + c + d + e + f + g + h + i; -} -MATCHER_P10(EqualsSumOf, a, b, c, d, e, f, g, h, i, j, "") { - return arg == a + b + c + d + e + f + g + h + i + j; -} - -TEST(MatcherPnMacroTest, CanBeOverloadedOnNumberOfParameters) { - EXPECT_THAT(0, EqualsSumOf()); - EXPECT_THAT(1, EqualsSumOf(1)); - EXPECT_THAT(12, EqualsSumOf(10, 2)); - EXPECT_THAT(123, EqualsSumOf(100, 20, 3)); - EXPECT_THAT(1234, EqualsSumOf(1000, 200, 30, 4)); - EXPECT_THAT(12345, EqualsSumOf(10000, 2000, 300, 40, 5)); - EXPECT_THAT("abcdef", - EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f')); - EXPECT_THAT("abcdefg", - EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g')); - EXPECT_THAT("abcdefgh", EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", - 'f', 'g', "h")); - EXPECT_THAT("abcdefghi", EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", - 'f', 'g', "h", 'i')); - EXPECT_THAT("abcdefghij", - EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g', "h", - 'i', ::std::string("j"))); - - EXPECT_THAT(1, Not(EqualsSumOf())); - EXPECT_THAT(-1, Not(EqualsSumOf(1))); - EXPECT_THAT(-12, Not(EqualsSumOf(10, 2))); - EXPECT_THAT(-123, Not(EqualsSumOf(100, 20, 3))); - EXPECT_THAT(-1234, Not(EqualsSumOf(1000, 200, 30, 4))); - EXPECT_THAT(-12345, Not(EqualsSumOf(10000, 2000, 300, 40, 5))); - EXPECT_THAT("abcdef ", - Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f'))); - EXPECT_THAT("abcdefg ", Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", - "e", 'f', 'g'))); - EXPECT_THAT("abcdefgh ", Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", - "e", 'f', 'g', "h"))); - EXPECT_THAT("abcdefghi ", Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", - "e", 'f', 'g', "h", 'i'))); - EXPECT_THAT("abcdefghij ", - Not(EqualsSumOf(::std::string("a"), 'b', 'c', "d", "e", 'f', 'g', - "h", 'i', ::std::string("j")))); -} - -// Tests that a MATCHER_Pn() definition can be instantiated with any -// compatible parameter types. -TEST(MatcherPnMacroTest, WorksForDifferentParameterTypes) { - EXPECT_THAT(123, EqualsSumOf(100L, 20, static_cast<char>(3))); - EXPECT_THAT("abcd", EqualsSumOf(::std::string("a"), "b", 'c', "d")); - - EXPECT_THAT(124, Not(EqualsSumOf(100L, 20, static_cast<char>(3)))); - EXPECT_THAT("abcde", Not(EqualsSumOf(::std::string("a"), "b", 'c', "d"))); -} - -// Tests that the matcher body can promote the parameter types. - -MATCHER_P2(EqConcat, prefix, suffix, "") { - // The following lines promote the two parameters to desired types. - std::string prefix_str(prefix); - char suffix_char = static_cast<char>(suffix); - return arg == prefix_str + suffix_char; -} - -TEST(MatcherPnMacroTest, SimpleTypePromotion) { - Matcher<std::string> no_promo = EqConcat(std::string("foo"), 't'); - Matcher<const std::string&> promo = EqConcat("foo", static_cast<int>('t')); - EXPECT_FALSE(no_promo.Matches("fool")); - EXPECT_FALSE(promo.Matches("fool")); - EXPECT_TRUE(no_promo.Matches("foot")); - EXPECT_TRUE(promo.Matches("foot")); -} - -// Verifies the type of a MATCHER*. - -TEST(MatcherPnMacroTest, TypesAreCorrect) { - // EqualsSumOf() must be assignable to a EqualsSumOfMatcher variable. - EqualsSumOfMatcher a0 = EqualsSumOf(); - - // EqualsSumOf(1) must be assignable to a EqualsSumOfMatcherP variable. - EqualsSumOfMatcherP<int> a1 = EqualsSumOf(1); - - // EqualsSumOf(p1, ..., pk) must be assignable to a EqualsSumOfMatcherPk - // variable, and so on. - EqualsSumOfMatcherP2<int, char> a2 = EqualsSumOf(1, '2'); - EqualsSumOfMatcherP3<int, int, char> a3 = EqualsSumOf(1, 2, '3'); - EqualsSumOfMatcherP4<int, int, int, char> a4 = EqualsSumOf(1, 2, 3, '4'); - EqualsSumOfMatcherP5<int, int, int, int, char> a5 = - EqualsSumOf(1, 2, 3, 4, '5'); - EqualsSumOfMatcherP6<int, int, int, int, int, char> a6 = - EqualsSumOf(1, 2, 3, 4, 5, '6'); - EqualsSumOfMatcherP7<int, int, int, int, int, int, char> a7 = - EqualsSumOf(1, 2, 3, 4, 5, 6, '7'); - EqualsSumOfMatcherP8<int, int, int, int, int, int, int, char> a8 = - EqualsSumOf(1, 2, 3, 4, 5, 6, 7, '8'); - EqualsSumOfMatcherP9<int, int, int, int, int, int, int, int, char> a9 = - EqualsSumOf(1, 2, 3, 4, 5, 6, 7, 8, '9'); - EqualsSumOfMatcherP10<int, int, int, int, int, int, int, int, int, char> a10 = - EqualsSumOf(1, 2, 3, 4, 5, 6, 7, 8, 9, '0'); - - // Avoid "unused variable" warnings. - (void)a0; - (void)a1; - (void)a2; - (void)a3; - (void)a4; - (void)a5; - (void)a6; - (void)a7; - (void)a8; - (void)a9; - (void)a10; -} - -// Tests that matcher-typed parameters can be used in Value() inside a -// MATCHER_Pn definition. - -// Succeeds if arg matches exactly 2 of the 3 matchers. -MATCHER_P3(TwoOf, m1, m2, m3, "") { - const int count = static_cast<int>(Value(arg, m1)) + - static_cast<int>(Value(arg, m2)) + - static_cast<int>(Value(arg, m3)); - return count == 2; -} - -TEST(MatcherPnMacroTest, CanUseMatcherTypedParameterInValue) { - EXPECT_THAT(42, TwoOf(Gt(0), Lt(50), Eq(10))); - EXPECT_THAT(0, Not(TwoOf(Gt(-1), Lt(1), Eq(0)))); -} - -// Tests Contains(). - -TEST(ContainsTest, ListMatchesWhenElementIsInContainer) { - list<int> some_list; - some_list.push_back(3); - some_list.push_back(1); - some_list.push_back(2); - EXPECT_THAT(some_list, Contains(1)); - EXPECT_THAT(some_list, Contains(Gt(2.5))); - EXPECT_THAT(some_list, Contains(Eq(2.0f))); - - list<std::string> another_list; - another_list.push_back("fee"); - another_list.push_back("fie"); - another_list.push_back("foe"); - another_list.push_back("fum"); - EXPECT_THAT(another_list, Contains(std::string("fee"))); -} - -TEST(ContainsTest, ListDoesNotMatchWhenElementIsNotInContainer) { - list<int> some_list; - some_list.push_back(3); - some_list.push_back(1); - EXPECT_THAT(some_list, Not(Contains(4))); -} - -TEST(ContainsTest, SetMatchesWhenElementIsInContainer) { - set<int> some_set; - some_set.insert(3); - some_set.insert(1); - some_set.insert(2); - EXPECT_THAT(some_set, Contains(Eq(1.0))); - EXPECT_THAT(some_set, Contains(Eq(3.0f))); - EXPECT_THAT(some_set, Contains(2)); - - set<std::string> another_set; - another_set.insert("fee"); - another_set.insert("fie"); - another_set.insert("foe"); - another_set.insert("fum"); - EXPECT_THAT(another_set, Contains(Eq(std::string("fum")))); -} - -TEST(ContainsTest, SetDoesNotMatchWhenElementIsNotInContainer) { - set<int> some_set; - some_set.insert(3); - some_set.insert(1); - EXPECT_THAT(some_set, Not(Contains(4))); - - set<std::string> c_string_set; - c_string_set.insert("hello"); - EXPECT_THAT(c_string_set, Not(Contains(std::string("goodbye")))); -} - -TEST(ContainsTest, ExplainsMatchResultCorrectly) { - const int a[2] = {1, 2}; - Matcher<const int(&)[2]> m = Contains(2); - EXPECT_EQ("whose element #1 matches", Explain(m, a)); - - m = Contains(3); - EXPECT_EQ("", Explain(m, a)); - - m = Contains(GreaterThan(0)); - EXPECT_EQ("whose element #0 matches, which is 1 more than 0", Explain(m, a)); - - m = Contains(GreaterThan(10)); - EXPECT_EQ("", Explain(m, a)); -} - -TEST(ContainsTest, DescribesItselfCorrectly) { - Matcher<vector<int>> m = Contains(1); - EXPECT_EQ("contains at least one element that is equal to 1", Describe(m)); - - Matcher<vector<int>> m2 = Not(m); - EXPECT_EQ("doesn't contain any element that is equal to 1", Describe(m2)); -} - -TEST(ContainsTest, MapMatchesWhenElementIsInContainer) { - map<std::string, int> my_map; - const char* bar = "a string"; - my_map[bar] = 2; - EXPECT_THAT(my_map, Contains(pair<const char* const, int>(bar, 2))); - - map<std::string, int> another_map; - another_map["fee"] = 1; - another_map["fie"] = 2; - another_map["foe"] = 3; - another_map["fum"] = 4; - EXPECT_THAT(another_map, - Contains(pair<const std::string, int>(std::string("fee"), 1))); - EXPECT_THAT(another_map, Contains(pair<const std::string, int>("fie", 2))); -} - -TEST(ContainsTest, MapDoesNotMatchWhenElementIsNotInContainer) { - map<int, int> some_map; - some_map[1] = 11; - some_map[2] = 22; - EXPECT_THAT(some_map, Not(Contains(pair<const int, int>(2, 23)))); -} - -TEST(ContainsTest, ArrayMatchesWhenElementIsInContainer) { - const char* string_array[] = {"fee", "fie", "foe", "fum"}; - EXPECT_THAT(string_array, Contains(Eq(std::string("fum")))); -} - -TEST(ContainsTest, ArrayDoesNotMatchWhenElementIsNotInContainer) { - int int_array[] = {1, 2, 3, 4}; - EXPECT_THAT(int_array, Not(Contains(5))); -} - -TEST(ContainsTest, AcceptsMatcher) { - const int a[] = {1, 2, 3}; - EXPECT_THAT(a, Contains(Gt(2))); - EXPECT_THAT(a, Not(Contains(Gt(4)))); -} - -TEST(ContainsTest, WorksForNativeArrayAsTuple) { - const int a[] = {1, 2}; - const int* const pointer = a; - EXPECT_THAT(std::make_tuple(pointer, 2), Contains(1)); - EXPECT_THAT(std::make_tuple(pointer, 2), Not(Contains(Gt(3)))); -} - -TEST(ContainsTest, WorksForTwoDimensionalNativeArray) { - int a[][3] = {{1, 2, 3}, {4, 5, 6}}; - EXPECT_THAT(a, Contains(ElementsAre(4, 5, 6))); - EXPECT_THAT(a, Contains(Contains(5))); - EXPECT_THAT(a, Not(Contains(ElementsAre(3, 4, 5)))); - EXPECT_THAT(a, Contains(Not(Contains(5)))); -} - -TEST(AllOfArrayTest, BasicForms) { - // Iterator - std::vector<int> v0{}; - std::vector<int> v1{1}; - std::vector<int> v2{2, 3}; - std::vector<int> v3{4, 4, 4}; - EXPECT_THAT(0, AllOfArray(v0.begin(), v0.end())); - EXPECT_THAT(1, AllOfArray(v1.begin(), v1.end())); - EXPECT_THAT(2, Not(AllOfArray(v1.begin(), v1.end()))); - EXPECT_THAT(3, Not(AllOfArray(v2.begin(), v2.end()))); - EXPECT_THAT(4, AllOfArray(v3.begin(), v3.end())); - // Pointer + size - int ar[6] = {1, 2, 3, 4, 4, 4}; - EXPECT_THAT(0, AllOfArray(ar, 0)); - EXPECT_THAT(1, AllOfArray(ar, 1)); - EXPECT_THAT(2, Not(AllOfArray(ar, 1))); - EXPECT_THAT(3, Not(AllOfArray(ar + 1, 3))); - EXPECT_THAT(4, AllOfArray(ar + 3, 3)); - // Array - // int ar0[0]; Not usable - int ar1[1] = {1}; - int ar2[2] = {2, 3}; - int ar3[3] = {4, 4, 4}; - // EXPECT_THAT(0, Not(AllOfArray(ar0))); // Cannot work - EXPECT_THAT(1, AllOfArray(ar1)); - EXPECT_THAT(2, Not(AllOfArray(ar1))); - EXPECT_THAT(3, Not(AllOfArray(ar2))); - EXPECT_THAT(4, AllOfArray(ar3)); - // Container - EXPECT_THAT(0, AllOfArray(v0)); - EXPECT_THAT(1, AllOfArray(v1)); - EXPECT_THAT(2, Not(AllOfArray(v1))); - EXPECT_THAT(3, Not(AllOfArray(v2))); - EXPECT_THAT(4, AllOfArray(v3)); - // Initializer - EXPECT_THAT(0, AllOfArray<int>({})); // Requires template arg. - EXPECT_THAT(1, AllOfArray({1})); - EXPECT_THAT(2, Not(AllOfArray({1}))); - EXPECT_THAT(3, Not(AllOfArray({2, 3}))); - EXPECT_THAT(4, AllOfArray({4, 4, 4})); -} - -TEST(AllOfArrayTest, Matchers) { - // vector - std::vector<Matcher<int>> matchers{Ge(1), Lt(2)}; - EXPECT_THAT(0, Not(AllOfArray(matchers))); - EXPECT_THAT(1, AllOfArray(matchers)); - EXPECT_THAT(2, Not(AllOfArray(matchers))); - // initializer_list - EXPECT_THAT(0, Not(AllOfArray({Ge(0), Ge(1)}))); - EXPECT_THAT(1, AllOfArray({Ge(0), Ge(1)})); -} - -TEST(AnyOfArrayTest, BasicForms) { - // Iterator - std::vector<int> v0{}; - std::vector<int> v1{1}; - std::vector<int> v2{2, 3}; - EXPECT_THAT(0, Not(AnyOfArray(v0.begin(), v0.end()))); - EXPECT_THAT(1, AnyOfArray(v1.begin(), v1.end())); - EXPECT_THAT(2, Not(AnyOfArray(v1.begin(), v1.end()))); - EXPECT_THAT(3, AnyOfArray(v2.begin(), v2.end())); - EXPECT_THAT(4, Not(AnyOfArray(v2.begin(), v2.end()))); - // Pointer + size - int ar[3] = {1, 2, 3}; - EXPECT_THAT(0, Not(AnyOfArray(ar, 0))); - EXPECT_THAT(1, AnyOfArray(ar, 1)); - EXPECT_THAT(2, Not(AnyOfArray(ar, 1))); - EXPECT_THAT(3, AnyOfArray(ar + 1, 2)); - EXPECT_THAT(4, Not(AnyOfArray(ar + 1, 2))); - // Array - // int ar0[0]; Not usable - int ar1[1] = {1}; - int ar2[2] = {2, 3}; - // EXPECT_THAT(0, Not(AnyOfArray(ar0))); // Cannot work - EXPECT_THAT(1, AnyOfArray(ar1)); - EXPECT_THAT(2, Not(AnyOfArray(ar1))); - EXPECT_THAT(3, AnyOfArray(ar2)); - EXPECT_THAT(4, Not(AnyOfArray(ar2))); - // Container - EXPECT_THAT(0, Not(AnyOfArray(v0))); - EXPECT_THAT(1, AnyOfArray(v1)); - EXPECT_THAT(2, Not(AnyOfArray(v1))); - EXPECT_THAT(3, AnyOfArray(v2)); - EXPECT_THAT(4, Not(AnyOfArray(v2))); - // Initializer - EXPECT_THAT(0, Not(AnyOfArray<int>({}))); // Requires template arg. - EXPECT_THAT(1, AnyOfArray({1})); - EXPECT_THAT(2, Not(AnyOfArray({1}))); - EXPECT_THAT(3, AnyOfArray({2, 3})); - EXPECT_THAT(4, Not(AnyOfArray({2, 3}))); -} - -TEST(AnyOfArrayTest, Matchers) { - // We negate test AllOfArrayTest.Matchers. - // vector - std::vector<Matcher<int>> matchers{Lt(1), Ge(2)}; - EXPECT_THAT(0, AnyOfArray(matchers)); - EXPECT_THAT(1, Not(AnyOfArray(matchers))); - EXPECT_THAT(2, AnyOfArray(matchers)); - // initializer_list - EXPECT_THAT(0, AnyOfArray({Lt(0), Lt(1)})); - EXPECT_THAT(1, Not(AllOfArray({Lt(0), Lt(1)}))); -} - -TEST(AnyOfArrayTest, ExplainsMatchResultCorrectly) { - // AnyOfArray and AllOfArry use the same underlying template-template, - // thus it is sufficient to test one here. - const std::vector<int> v0{}; - const std::vector<int> v1{1}; - const std::vector<int> v2{2, 3}; - const Matcher<int> m0 = AnyOfArray(v0); - const Matcher<int> m1 = AnyOfArray(v1); - const Matcher<int> m2 = AnyOfArray(v2); - EXPECT_EQ("", Explain(m0, 0)); - EXPECT_EQ("", Explain(m1, 1)); - EXPECT_EQ("", Explain(m1, 2)); - EXPECT_EQ("", Explain(m2, 3)); - EXPECT_EQ("", Explain(m2, 4)); - EXPECT_EQ("()", Describe(m0)); - EXPECT_EQ("(is equal to 1)", Describe(m1)); - EXPECT_EQ("(is equal to 2) or (is equal to 3)", Describe(m2)); - EXPECT_EQ("()", DescribeNegation(m0)); - EXPECT_EQ("(isn't equal to 1)", DescribeNegation(m1)); - EXPECT_EQ("(isn't equal to 2) and (isn't equal to 3)", DescribeNegation(m2)); - // Explain with matchers - const Matcher<int> g1 = AnyOfArray({GreaterThan(1)}); - const Matcher<int> g2 = AnyOfArray({GreaterThan(1), GreaterThan(2)}); - // Explains the first positiv match and all prior negative matches... - EXPECT_EQ("which is 1 less than 1", Explain(g1, 0)); - EXPECT_EQ("which is the same as 1", Explain(g1, 1)); - EXPECT_EQ("which is 1 more than 1", Explain(g1, 2)); - EXPECT_EQ("which is 1 less than 1, and which is 2 less than 2", - Explain(g2, 0)); - EXPECT_EQ("which is the same as 1, and which is 1 less than 2", - Explain(g2, 1)); - EXPECT_EQ("which is 1 more than 1", // Only the first - Explain(g2, 2)); -} - -TEST(AllOfTest, HugeMatcher) { - // Verify that using AllOf with many arguments doesn't cause - // the compiler to exceed template instantiation depth limit. - EXPECT_THAT(0, testing::AllOf(_, _, _, _, _, _, _, _, _, - testing::AllOf(_, _, _, _, _, _, _, _, _, _))); -} - -TEST(AnyOfTest, HugeMatcher) { - // Verify that using AnyOf with many arguments doesn't cause - // the compiler to exceed template instantiation depth limit. - EXPECT_THAT(0, testing::AnyOf(_, _, _, _, _, _, _, _, _, - testing::AnyOf(_, _, _, _, _, _, _, _, _, _))); -} - -namespace adl_test { - -// Verifies that the implementation of ::testing::AllOf and ::testing::AnyOf -// don't issue unqualified recursive calls. If they do, the argument dependent -// name lookup will cause AllOf/AnyOf in the 'adl_test' namespace to be found -// as a candidate and the compilation will break due to an ambiguous overload. - -// The matcher must be in the same namespace as AllOf/AnyOf to make argument -// dependent lookup find those. -MATCHER(M, "") { - (void)arg; - return true; -} - -template <typename T1, typename T2> -bool AllOf(const T1& /*t1*/, const T2& /*t2*/) { - return true; -} - -TEST(AllOfTest, DoesNotCallAllOfUnqualified) { - EXPECT_THAT(42, - testing::AllOf(M(), M(), M(), M(), M(), M(), M(), M(), M(), M())); -} - -template <typename T1, typename T2> -bool AnyOf(const T1&, const T2&) { - return true; -} - -TEST(AnyOfTest, DoesNotCallAnyOfUnqualified) { - EXPECT_THAT(42, - testing::AnyOf(M(), M(), M(), M(), M(), M(), M(), M(), M(), M())); -} - -} // namespace adl_test - -TEST(AllOfTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, AllOf(Pointee(Eq(3)), Pointee(Gt(0)), Pointee(Lt(5)))); - EXPECT_THAT(p, Not(AllOf(Pointee(Eq(3)), Pointee(Gt(0)), Pointee(Lt(3))))); -} - -TEST(AnyOfTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, AnyOf(Pointee(Eq(5)), Pointee(Lt(0)), Pointee(Lt(5)))); - EXPECT_THAT(p, Not(AnyOf(Pointee(Eq(5)), Pointee(Lt(0)), Pointee(Gt(5))))); -} - -MATCHER(IsNotNull, "") { return arg != nullptr; } - -// Verifies that a matcher defined using MATCHER() can work on -// move-only types. -TEST(MatcherMacroTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, IsNotNull()); - EXPECT_THAT(std::unique_ptr<int>(), Not(IsNotNull())); -} - -MATCHER_P(UniquePointee, pointee, "") { return *arg == pointee; } - -// Verifies that a matcher defined using MATCHER_P*() can work on -// move-only types. -TEST(MatcherPMacroTest, WorksOnMoveOnlyType) { - std::unique_ptr<int> p(new int(3)); - EXPECT_THAT(p, UniquePointee(3)); - EXPECT_THAT(p, Not(UniquePointee(2))); -} - -#if GTEST_HAS_EXCEPTIONS - -// std::function<void()> is used below for compatibility with older copies of -// GCC. Normally, a raw lambda is all that is needed. - -// Test that examples from documentation compile -TEST(ThrowsTest, Examples) { - EXPECT_THAT( - std::function<void()>([]() { throw std::runtime_error("message"); }), - Throws<std::runtime_error>()); - - EXPECT_THAT( - std::function<void()>([]() { throw std::runtime_error("message"); }), - ThrowsMessage<std::runtime_error>(HasSubstr("message"))); -} - -TEST(ThrowsTest, DoesNotGenerateDuplicateCatchClauseWarning) { - EXPECT_THAT(std::function<void()>([]() { throw std::exception(); }), - Throws<std::exception>()); -} - -TEST(ThrowsTest, CallableExecutedExactlyOnce) { - size_t a = 0; - - EXPECT_THAT(std::function<void()>([&a]() { - a++; - throw 10; - }), - Throws<int>()); - EXPECT_EQ(a, 1u); - - EXPECT_THAT(std::function<void()>([&a]() { - a++; - throw std::runtime_error("message"); - }), - Throws<std::runtime_error>()); - EXPECT_EQ(a, 2u); - - EXPECT_THAT(std::function<void()>([&a]() { - a++; - throw std::runtime_error("message"); - }), - ThrowsMessage<std::runtime_error>(HasSubstr("message"))); - EXPECT_EQ(a, 3u); - - EXPECT_THAT(std::function<void()>([&a]() { - a++; - throw std::runtime_error("message"); - }), - Throws<std::runtime_error>( - Property(&std::runtime_error::what, HasSubstr("message")))); - EXPECT_EQ(a, 4u); -} - -TEST(ThrowsTest, Describe) { - Matcher<std::function<void()>> matcher = Throws<std::runtime_error>(); - std::stringstream ss; - matcher.DescribeTo(&ss); - auto explanation = ss.str(); - EXPECT_THAT(explanation, HasSubstr("std::runtime_error")); -} - -TEST(ThrowsTest, Success) { - Matcher<std::function<void()>> matcher = Throws<std::runtime_error>(); - StringMatchResultListener listener; - EXPECT_TRUE(matcher.MatchAndExplain( - []() { throw std::runtime_error("error message"); }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("std::runtime_error")); -} - -TEST(ThrowsTest, FailWrongType) { - Matcher<std::function<void()>> matcher = Throws<std::runtime_error>(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain( - []() { throw std::logic_error("error message"); }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("std::logic_error")); - EXPECT_THAT(listener.str(), HasSubstr("\"error message\"")); -} - -TEST(ThrowsTest, FailWrongTypeNonStd) { - Matcher<std::function<void()>> matcher = Throws<std::runtime_error>(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain([]() { throw 10; }, &listener)); - EXPECT_THAT(listener.str(), - HasSubstr("throws an exception of an unknown type")); -} - -TEST(ThrowsTest, FailNoThrow) { - Matcher<std::function<void()>> matcher = Throws<std::runtime_error>(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain([]() { (void)0; }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("does not throw any exception")); -} - -class ThrowsPredicateTest - : public TestWithParam<Matcher<std::function<void()>>> {}; - -TEST_P(ThrowsPredicateTest, Describe) { - Matcher<std::function<void()>> matcher = GetParam(); - std::stringstream ss; - matcher.DescribeTo(&ss); - auto explanation = ss.str(); - EXPECT_THAT(explanation, HasSubstr("std::runtime_error")); - EXPECT_THAT(explanation, HasSubstr("error message")); -} - -TEST_P(ThrowsPredicateTest, Success) { - Matcher<std::function<void()>> matcher = GetParam(); - StringMatchResultListener listener; - EXPECT_TRUE(matcher.MatchAndExplain( - []() { throw std::runtime_error("error message"); }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("std::runtime_error")); -} - -TEST_P(ThrowsPredicateTest, FailWrongType) { - Matcher<std::function<void()>> matcher = GetParam(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain( - []() { throw std::logic_error("error message"); }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("std::logic_error")); - EXPECT_THAT(listener.str(), HasSubstr("\"error message\"")); -} - -TEST_P(ThrowsPredicateTest, FailWrongTypeNonStd) { - Matcher<std::function<void()>> matcher = GetParam(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain([]() { throw 10; }, &listener)); - EXPECT_THAT(listener.str(), - HasSubstr("throws an exception of an unknown type")); -} - -TEST_P(ThrowsPredicateTest, FailWrongMessage) { - Matcher<std::function<void()>> matcher = GetParam(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain( - []() { throw std::runtime_error("wrong message"); }, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("std::runtime_error")); - EXPECT_THAT(listener.str(), Not(HasSubstr("wrong message"))); -} - -TEST_P(ThrowsPredicateTest, FailNoThrow) { - Matcher<std::function<void()>> matcher = GetParam(); - StringMatchResultListener listener; - EXPECT_FALSE(matcher.MatchAndExplain([]() {}, &listener)); - EXPECT_THAT(listener.str(), HasSubstr("does not throw any exception")); -} - -INSTANTIATE_TEST_SUITE_P( - AllMessagePredicates, ThrowsPredicateTest, - Values(Matcher<std::function<void()>>( - ThrowsMessage<std::runtime_error>(HasSubstr("error message"))))); - -// Tests that Throws<E1>(Matcher<E2>{}) compiles even when E2 != const E1&. -TEST(ThrowsPredicateCompilesTest, ExceptionMatcherAcceptsBroadType) { - { - Matcher<std::function<void()>> matcher = - ThrowsMessage<std::runtime_error>(HasSubstr("error message")); - EXPECT_TRUE( - matcher.Matches([]() { throw std::runtime_error("error message"); })); - EXPECT_FALSE( - matcher.Matches([]() { throw std::runtime_error("wrong message"); })); - } - - { - Matcher<uint64_t> inner = Eq(10); - Matcher<std::function<void()>> matcher = Throws<uint32_t>(inner); - EXPECT_TRUE(matcher.Matches([]() { throw(uint32_t) 10; })); - EXPECT_FALSE(matcher.Matches([]() { throw(uint32_t) 11; })); - } -} - -// Tests that ThrowsMessage("message") is equivalent -// to ThrowsMessage(Eq<std::string>("message")). -TEST(ThrowsPredicateCompilesTest, MessageMatcherAcceptsNonMatcher) { - Matcher<std::function<void()>> matcher = - ThrowsMessage<std::runtime_error>("error message"); - EXPECT_TRUE( - matcher.Matches([]() { throw std::runtime_error("error message"); })); - EXPECT_FALSE(matcher.Matches( - []() { throw std::runtime_error("wrong error message"); })); -} - -#endif // GTEST_HAS_EXCEPTIONS - -} // namespace -} // namespace gmock_matchers_test -} // namespace testing - -#ifdef _MSC_VER -# pragma warning(pop) -#endif |