diff options
Diffstat (limited to 'googletest/test/googletest-printers-test.cc')
| -rw-r--r-- | googletest/test/googletest-printers-test.cc | 506 |
1 files changed, 289 insertions, 217 deletions
diff --git a/googletest/test/googletest-printers-test.cc b/googletest/test/googletest-printers-test.cc index e1e8e1c7..d5061bef 100644 --- a/googletest/test/googletest-printers-test.cc +++ b/googletest/test/googletest-printers-test.cc @@ -27,7 +27,6 @@ // (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 Test - The Google C++ Testing and Mocking Framework // // This file tests the universal value printer. @@ -38,13 +37,16 @@ #include <cstring> #include <deque> #include <forward_list> +#include <functional> #include <limits> #include <list> #include <map> #include <memory> +#include <ostream> #include <set> #include <sstream> #include <string> +#include <tuple> #include <unordered_map> #include <unordered_set> #include <utility> @@ -52,34 +54,33 @@ #include "gtest/gtest-printers.h" #include "gtest/gtest.h" +#include "gtest/internal/gtest-port.h" + +#ifdef GTEST_HAS_ABSL +#include "absl/strings/str_format.h" +#endif + +#if GTEST_INTERNAL_HAS_STD_SPAN +#include <span> // NOLINT +#endif // GTEST_INTERNAL_HAS_STD_SPAN // Some user-defined types for testing the universal value printer. // An anonymous enum type. -enum AnonymousEnum { - kAE1 = -1, - kAE2 = 1 -}; +enum AnonymousEnum { kAE1 = -1, kAE2 = 1 }; // An enum without a user-defined printer. -enum EnumWithoutPrinter { - kEWP1 = -2, - kEWP2 = 42 -}; +enum EnumWithoutPrinter { kEWP1 = -2, kEWP2 = 42 }; // An enum with a << operator. -enum EnumWithStreaming { - kEWS1 = 10 -}; +enum EnumWithStreaming { kEWS1 = 10 }; std::ostream& operator<<(std::ostream& os, EnumWithStreaming e) { return os << (e == kEWS1 ? "kEWS1" : "invalid"); } // An enum with a PrintTo() function. -enum EnumWithPrintTo { - kEWPT1 = 1 -}; +enum EnumWithPrintTo { kEWPT1 = 1 }; void PrintTo(EnumWithPrintTo e, std::ostream* os) { *os << (e == kEWPT1 ? "kEWPT1" : "invalid"); @@ -108,6 +109,7 @@ template <typename T> class UnprintableTemplateInGlobal { public: UnprintableTemplateInGlobal() : value_() {} + private: T value_; }; @@ -115,7 +117,7 @@ class UnprintableTemplateInGlobal { // A user-defined streamable type in the global namespace. class StreamableInGlobal { public: - virtual ~StreamableInGlobal() {} + virtual ~StreamableInGlobal() = default; }; inline void operator<<(::std::ostream& os, const StreamableInGlobal& /* x */) { @@ -126,6 +128,19 @@ void operator<<(::std::ostream& os, const StreamableInGlobal* /* x */) { os << "StreamableInGlobal*"; } +#ifdef GTEST_HAS_ABSL +// A user-defined type with AbslStringify +struct Point { + template <typename Sink> + friend void AbslStringify(Sink& sink, const Point& p) { + absl::Format(&sink, "(%d, %d)", p.x, p.y); + } + + int x = 10; + int y = 20; +}; +#endif + namespace foo { // A user-defined unprintable type in a user namespace. @@ -133,6 +148,7 @@ class UnprintableInFoo { public: UnprintableInFoo() : z_(0) { memcpy(xy_, "\xEF\x12\x0\x0\x34\xAB\x0\x0", 8); } double z() const { return z_; } + private: char xy_[8]; double z_; @@ -149,8 +165,7 @@ void PrintTo(const PrintableViaPrintTo& x, ::std::ostream* os) { } // A type with a user-defined << for printing its pointer. -struct PointerPrintable { -}; +struct PointerPrintable {}; ::std::ostream& operator<<(::std::ostream& os, const PointerPrintable* /* x */) { @@ -164,6 +179,7 @@ class PrintableViaPrintToTemplate { explicit PrintableViaPrintToTemplate(const T& a_value) : value_(a_value) {} const T& value() const { return value_; } + private: T value_; }; @@ -180,6 +196,7 @@ class StreamableTemplateInFoo { StreamableTemplateInFoo() : value_() {} const T& value() const { return value_; } + private: T value_; }; @@ -201,6 +218,11 @@ OutputStream& operator<<(OutputStream& os, return os; } +struct StreamableInLocal {}; +void operator<<(::std::ostream& os, const StreamableInLocal& /* x */) { + os << "StreamableInLocal"; +} + // A user-defined streamable but recursively-defined container type in // a user namespace, it mimics therefore std::filesystem::path or // boost::filesystem::path. @@ -216,7 +238,7 @@ class PathLike { using value_type = char; using const_iterator = iterator; - PathLike() {} + PathLike() = default; iterator begin() const { return iterator(); } iterator end() const { return iterator(); } @@ -255,7 +277,6 @@ class UniversalPrinter<Wrapper<T>> { }; } // namespace internal - namespace gtest_printers_test { using ::std::deque; @@ -269,7 +290,6 @@ using ::std::set; using ::std::vector; using ::testing::PrintToString; using ::testing::internal::FormatForComparisonFailureMessage; -using ::testing::internal::ImplicitCast_; using ::testing::internal::NativeArray; using ::testing::internal::RelationToSourceReference; using ::testing::internal::Strings; @@ -319,6 +339,11 @@ TEST(PrintEnumTest, EnumWithPrintTo) { EXPECT_EQ("invalid", Print(static_cast<EnumWithPrintTo>(0))); } +#ifdef GTEST_HAS_ABSL +// Tests printing a class that defines AbslStringify +TEST(PrintClassTest, AbslStringify) { EXPECT_EQ("(10, 20)", Print(Point())); } +#endif + // Tests printing a class implicitly convertible to BiggestInt. TEST(PrintClassTest, BiggestIntConvertible) { @@ -350,29 +375,21 @@ TEST(PrintCharTest, PlainChar) { // signed char. TEST(PrintCharTest, SignedChar) { EXPECT_EQ("'\\0'", Print(static_cast<signed char>('\0'))); - EXPECT_EQ("'\\xCE' (-50)", - Print(static_cast<signed char>(-50))); + EXPECT_EQ("'\\xCE' (-50)", Print(static_cast<signed char>(-50))); } // unsigned char. TEST(PrintCharTest, UnsignedChar) { EXPECT_EQ("'\\0'", Print(static_cast<unsigned char>('\0'))); - EXPECT_EQ("'b' (98, 0x62)", - Print(static_cast<unsigned char>('b'))); + EXPECT_EQ("'b' (98, 0x62)", Print(static_cast<unsigned char>('b'))); } -TEST(PrintCharTest, Char16) { - EXPECT_EQ("U+0041", Print(u'A')); -} +TEST(PrintCharTest, Char16) { EXPECT_EQ("U+0041", Print(u'A')); } -TEST(PrintCharTest, Char32) { - EXPECT_EQ("U+0041", Print(U'A')); -} +TEST(PrintCharTest, Char32) { EXPECT_EQ("U+0041", Print(U'A')); } -#ifdef __cpp_char8_t -TEST(PrintCharTest, Char8) { - EXPECT_EQ("U+0041", Print(u8'A')); -} +#ifdef __cpp_lib_char8_t +TEST(PrintCharTest, Char8) { EXPECT_EQ("U+0041", Print(u8'A')); } #endif // Tests printing other simple, built-in types. @@ -414,8 +431,8 @@ TEST(PrintTypeSizeTest, Wchar_t) { TEST(PrintBuiltInTypeTest, Integer) { EXPECT_EQ("'\\xFF' (255)", Print(static_cast<unsigned char>(255))); // uint8 EXPECT_EQ("'\\x80' (-128)", Print(static_cast<signed char>(-128))); // int8 - EXPECT_EQ("65535", Print(std::numeric_limits<uint16_t>::max())); // uint16 - EXPECT_EQ("-32768", Print(std::numeric_limits<int16_t>::min())); // int16 + EXPECT_EQ("65535", Print(std::numeric_limits<uint16_t>::max())); // uint16 + EXPECT_EQ("-32768", Print(std::numeric_limits<int16_t>::min())); // int16 EXPECT_EQ("4294967295", Print(std::numeric_limits<uint32_t>::max())); // uint32 EXPECT_EQ("-2147483648", @@ -424,7 +441,7 @@ TEST(PrintBuiltInTypeTest, Integer) { Print(std::numeric_limits<uint64_t>::max())); // uint64 EXPECT_EQ("-9223372036854775808", Print(std::numeric_limits<int64_t>::min())); // int64 -#ifdef __cpp_char8_t +#ifdef __cpp_lib_char8_t EXPECT_EQ("U+0000", Print(std::numeric_limits<char8_t>::min())); // char8_t EXPECT_EQ("U+00FF", @@ -443,18 +460,54 @@ TEST(PrintBuiltInTypeTest, Integer) { // Size types. TEST(PrintBuiltInTypeTest, Size_t) { EXPECT_EQ("1", Print(sizeof('a'))); // size_t. -#if !GTEST_OS_WINDOWS +#ifndef GTEST_OS_WINDOWS // Windows has no ssize_t type. EXPECT_EQ("-2", Print(static_cast<ssize_t>(-2))); // ssize_t. -#endif // !GTEST_OS_WINDOWS +#endif // !GTEST_OS_WINDOWS } +// gcc/clang __{u,}int128_t values. +#if defined(__SIZEOF_INT128__) +TEST(PrintBuiltInTypeTest, Int128) { + // Small ones + EXPECT_EQ("0", Print(__int128_t{0})); + EXPECT_EQ("0", Print(__uint128_t{0})); + EXPECT_EQ("12345", Print(__int128_t{12345})); + EXPECT_EQ("12345", Print(__uint128_t{12345})); + EXPECT_EQ("-12345", Print(__int128_t{-12345})); + + // Large ones + EXPECT_EQ("340282366920938463463374607431768211455", Print(~__uint128_t{})); + __int128_t max_128 = static_cast<__int128_t>(~__uint128_t{} / 2); + EXPECT_EQ("-170141183460469231731687303715884105728", Print(~max_128)); + EXPECT_EQ("170141183460469231731687303715884105727", Print(max_128)); +} +#endif // __SIZEOF_INT128__ + // Floating-points. TEST(PrintBuiltInTypeTest, FloatingPoints) { - EXPECT_EQ("1.5", Print(1.5f)); // float + // float (32-bit precision) + EXPECT_EQ("1.5", Print(1.5f)); + + EXPECT_EQ("1.0999999", Print(1.09999990f)); + EXPECT_EQ("1.1", Print(1.10000002f)); + EXPECT_EQ("1.10000014", Print(1.10000014f)); + EXPECT_EQ("9e+09", Print(9e9f)); + + // double EXPECT_EQ("-2.5", Print(-2.5)); // double } +#if GTEST_HAS_RTTI +TEST(PrintBuiltInTypeTest, TypeInfo) { + struct MyStruct {}; + auto res = Print(typeid(MyStruct{})); + // We can't guarantee that we can demangle the name, but either name should + // contain the substring "MyStruct". + EXPECT_NE(res.find("MyStruct"), res.npos) << res; +} +#endif // GTEST_HAS_RTTI + // Since ::std::stringstream::operator<<(const void *) formats the pointer // output differently with different compilers, we have to create the expected // output first and use it as our expectation. @@ -488,12 +541,13 @@ TEST(PrintCStringTest, Null) { // Tests that C strings are escaped properly. TEST(PrintCStringTest, EscapesProperly) { const char* p = "'\"?\\\a\b\f\n\r\t\v\x7F\xFF a"; - EXPECT_EQ(PrintPointer(p) + " pointing to \"'\\\"?\\\\\\a\\b\\f" - "\\n\\r\\t\\v\\x7F\\xFF a\"", + EXPECT_EQ(PrintPointer(p) + + " pointing to \"'\\\"?\\\\\\a\\b\\f" + "\\n\\r\\t\\v\\x7F\\xFF a\"", Print(p)); } -#ifdef __cpp_char8_t +#ifdef __cpp_lib_char8_t // const char8_t*. TEST(PrintU8StringTest, Const) { const char8_t* p = u8"界"; @@ -608,10 +662,12 @@ TEST(PrintWideCStringTest, Null) { // Tests that wide C strings are escaped properly. TEST(PrintWideCStringTest, EscapesProperly) { - const wchar_t s[] = {'\'', '"', '?', '\\', '\a', '\b', '\f', '\n', '\r', - '\t', '\v', 0xD3, 0x576, 0x8D3, 0xC74D, ' ', 'a', '\0'}; - EXPECT_EQ(PrintPointer(s) + " pointing to L\"'\\\"?\\\\\\a\\b\\f" - "\\n\\r\\t\\v\\xD3\\x576\\x8D3\\xC74D a\"", + const wchar_t s[] = {'\'', '"', '?', '\\', '\a', '\b', + '\f', '\n', '\r', '\t', '\v', 0xD3, + 0x576, 0x8D3, 0xC74D, ' ', 'a', '\0'}; + EXPECT_EQ(PrintPointer(s) + + " pointing to L\"'\\\"?\\\\\\a\\b\\f" + "\\n\\r\\t\\v\\xD3\\x576\\x8D3\\xC74D a\"", Print(static_cast<const wchar_t*>(s))); } #endif // native wchar_t @@ -693,10 +749,9 @@ TEST(PrintPointerTest, NonMemberFunctionPointer) { // standard disallows casting between pointers to functions and // pointers to objects, and some compilers (e.g. GCC 3.4) enforce // this limitation. - EXPECT_EQ( - PrintPointer(reinterpret_cast<const void*>( - reinterpret_cast<internal::BiggestInt>(&MyFunction))), - Print(&MyFunction)); + EXPECT_EQ(PrintPointer(reinterpret_cast<const void*>( + reinterpret_cast<internal::BiggestInt>(&MyFunction))), + Print(&MyFunction)); int (*p)(bool) = NULL; // NOLINT EXPECT_EQ("NULL", Print(p)); } @@ -705,14 +760,13 @@ TEST(PrintPointerTest, NonMemberFunctionPointer) { // another. template <typename StringType> AssertionResult HasPrefix(const StringType& str, const StringType& prefix) { - if (str.find(prefix, 0) == 0) - return AssertionSuccess(); + if (str.find(prefix, 0) == 0) return AssertionSuccess(); const bool is_wide_string = sizeof(prefix[0]) > 1; const char* const begin_string_quote = is_wide_string ? "L\"" : "\""; return AssertionFailure() - << begin_string_quote << prefix << "\" is not a prefix of " - << begin_string_quote << str << "\"\n"; + << begin_string_quote << prefix << "\" is not a prefix of " + << begin_string_quote << str << "\"\n"; } // Tests printing member variable pointers. Although they are called @@ -722,7 +776,7 @@ AssertionResult HasPrefix(const StringType& str, const StringType& prefix) { struct Foo { public: - virtual ~Foo() {} + virtual ~Foo() = default; int MyMethod(char x) { return x + 1; } virtual char MyVirtualMethod(int /* n */) { return 'a'; } @@ -733,8 +787,7 @@ TEST(PrintPointerTest, MemberVariablePointer) { EXPECT_TRUE(HasPrefix(Print(&Foo::value), Print(sizeof(&Foo::value)) + "-byte object ")); int Foo::*p = NULL; // NOLINT - EXPECT_TRUE(HasPrefix(Print(p), - Print(sizeof(p)) + "-byte object ")); + EXPECT_TRUE(HasPrefix(Print(p), Print(sizeof(p)) + "-byte object ")); } // Tests printing member function pointers. Although they are called @@ -748,8 +801,7 @@ TEST(PrintPointerTest, MemberFunctionPointer) { HasPrefix(Print(&Foo::MyVirtualMethod), Print(sizeof((&Foo::MyVirtualMethod))) + "-byte object ")); int (Foo::*p)(char) = NULL; // NOLINT - EXPECT_TRUE(HasPrefix(Print(p), - Print(sizeof(p)) + "-byte object ")); + EXPECT_TRUE(HasPrefix(Print(p), Print(sizeof(p)) + "-byte object ")); } // Tests printing C arrays. @@ -763,29 +815,26 @@ std::string PrintArrayHelper(T (&a)[N]) { // One-dimensional array. TEST(PrintArrayTest, OneDimensionalArray) { - int a[5] = { 1, 2, 3, 4, 5 }; + int a[5] = {1, 2, 3, 4, 5}; EXPECT_EQ("{ 1, 2, 3, 4, 5 }", PrintArrayHelper(a)); } // Two-dimensional array. TEST(PrintArrayTest, TwoDimensionalArray) { - int a[2][5] = { - { 1, 2, 3, 4, 5 }, - { 6, 7, 8, 9, 0 } - }; + int a[2][5] = {{1, 2, 3, 4, 5}, {6, 7, 8, 9, 0}}; EXPECT_EQ("{ { 1, 2, 3, 4, 5 }, { 6, 7, 8, 9, 0 } }", PrintArrayHelper(a)); } // Array of const elements. TEST(PrintArrayTest, ConstArray) { - const bool a[1] = { false }; + const bool a[1] = {false}; EXPECT_EQ("{ false }", PrintArrayHelper(a)); } // char array without terminating NUL. TEST(PrintArrayTest, CharArrayWithNoTerminatingNul) { // Array a contains '\0' in the middle and doesn't end with '\0'. - char a[] = { 'H', '\0', 'i' }; + char a[] = {'H', '\0', 'i'}; EXPECT_EQ("\"H\\0i\" (no terminating NUL)", PrintArrayHelper(a)); } @@ -795,7 +844,7 @@ TEST(PrintArrayTest, CharArrayWithTerminatingNul) { EXPECT_EQ("\"\\0Hi\"", PrintArrayHelper(a)); } -#ifdef __cpp_char8_t +#ifdef __cpp_lib_char8_t // char_t array without terminating NUL. TEST(PrintArrayTest, Char8ArrayWithNoTerminatingNul) { // Array a contains '\0' in the middle and doesn't end with '\0'. @@ -806,9 +855,7 @@ TEST(PrintArrayTest, Char8ArrayWithNoTerminatingNul) { // char8_t array with terminating NUL. TEST(PrintArrayTest, Char8ArrayWithTerminatingNul) { const char8_t a[] = u8"\0世界"; - EXPECT_EQ( - "u8\"\\0\\xE4\\xB8\\x96\\xE7\\x95\\x8C\"", - PrintArrayHelper(a)); + EXPECT_EQ("u8\"\\0\\xE4\\xB8\\x96\\xE7\\x95\\x8C\"", PrintArrayHelper(a)); } #endif @@ -861,7 +908,7 @@ TEST(PrintArrayTest, ObjectArray) { // Array with many elements. TEST(PrintArrayTest, BigArray) { - int a[100] = { 1, 2, 3 }; + int a[100] = {1, 2, 3}; EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, ..., 0, 0, 0, 0, 0, 0, 0, 0 }", PrintArrayHelper(a)); } @@ -881,11 +928,14 @@ TEST(PrintStringTest, StringAmbiguousHex) { // '\x6', '\x6B', or '\x6BA'. // a hex escaping sequence following by a decimal digit - EXPECT_EQ("\"0\\x12\" \"3\"", Print(::std::string("0\x12" "3"))); + EXPECT_EQ("\"0\\x12\" \"3\"", Print(::std::string("0\x12" + "3"))); // a hex escaping sequence following by a hex digit (lower-case) - EXPECT_EQ("\"mm\\x6\" \"bananas\"", Print(::std::string("mm\x6" "bananas"))); + EXPECT_EQ("\"mm\\x6\" \"bananas\"", Print(::std::string("mm\x6" + "bananas"))); // a hex escaping sequence following by a hex digit (upper-case) - EXPECT_EQ("\"NOM\\x6\" \"BANANA\"", Print(::std::string("NOM\x6" "BANANA"))); + EXPECT_EQ("\"NOM\\x6\" \"BANANA\"", Print(::std::string("NOM\x6" + "BANANA"))); // a hex escaping sequence following by a non-xdigit EXPECT_EQ("\"!\\x5-!\"", Print(::std::string("!\x5-!"))); } @@ -895,24 +945,26 @@ TEST(PrintStringTest, StringAmbiguousHex) { // ::std::wstring. TEST(PrintWideStringTest, StringInStdNamespace) { const wchar_t s[] = L"'\"?\\\a\b\f\n\0\r\t\v\xD3\x576\x8D3\xC74D a"; - const ::std::wstring str(s, sizeof(s)/sizeof(wchar_t)); - EXPECT_EQ("L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v" - "\\xD3\\x576\\x8D3\\xC74D a\\0\"", - Print(str)); + const ::std::wstring str(s, sizeof(s) / sizeof(wchar_t)); + EXPECT_EQ( + "L\"'\\\"?\\\\\\a\\b\\f\\n\\0\\r\\t\\v" + "\\xD3\\x576\\x8D3\\xC74D a\\0\"", + Print(str)); } TEST(PrintWideStringTest, StringAmbiguousHex) { // same for wide strings. - EXPECT_EQ("L\"0\\x12\" L\"3\"", Print(::std::wstring(L"0\x12" L"3"))); - EXPECT_EQ("L\"mm\\x6\" L\"bananas\"", - Print(::std::wstring(L"mm\x6" L"bananas"))); - EXPECT_EQ("L\"NOM\\x6\" L\"BANANA\"", - Print(::std::wstring(L"NOM\x6" L"BANANA"))); + EXPECT_EQ("L\"0\\x12\" L\"3\"", Print(::std::wstring(L"0\x12" + L"3"))); + EXPECT_EQ("L\"mm\\x6\" L\"bananas\"", Print(::std::wstring(L"mm\x6" + L"bananas"))); + EXPECT_EQ("L\"NOM\\x6\" L\"BANANA\"", Print(::std::wstring(L"NOM\x6" + L"BANANA"))); EXPECT_EQ("L\"!\\x5-!\"", Print(::std::wstring(L"!\x5-!"))); } #endif // GTEST_HAS_STD_WSTRING -#ifdef __cpp_char8_t +#ifdef __cpp_lib_char8_t TEST(PrintStringTest, U8String) { std::u8string str = u8"Hello, 世界"; EXPECT_EQ(str, str); // Verify EXPECT_EQ compiles with this type. @@ -1021,7 +1073,6 @@ TEST(PrintStlContainerTest, NonEmptyDeque) { EXPECT_EQ("{ 1, 3 }", Print(non_empty)); } - TEST(PrintStlContainerTest, OneElementHashMap) { ::std::unordered_map<int, char> map1; map1[1] = 'a'; @@ -1037,11 +1088,9 @@ TEST(PrintStlContainerTest, HashMultiMap) { const std::string result = Print(map1); EXPECT_TRUE(result == "{ (5, true), (5, false) }" || result == "{ (5, false), (5, true) }") - << " where Print(map1) returns \"" << result << "\"."; + << " where Print(map1) returns \"" << result << "\"."; } - - TEST(PrintStlContainerTest, HashSet) { ::std::unordered_set<int> set1; set1.insert(1); @@ -1050,7 +1099,7 @@ TEST(PrintStlContainerTest, HashSet) { TEST(PrintStlContainerTest, HashMultiSet) { const int kSize = 5; - int a[kSize] = { 1, 1, 2, 5, 1 }; + int a[kSize] = {1, 1, 2, 5, 1}; ::std::unordered_multiset<int> set1(a, a + kSize); // Elements of hash_multiset can be printed in any order. @@ -1066,8 +1115,8 @@ TEST(PrintStlContainerTest, HashMultiSet) { ASSERT_NE(isdigit(static_cast<unsigned char>(result[i])), 0); numbers.push_back(result[i] - '0'); } else { - EXPECT_EQ(expected_pattern[i], result[i]) << " where result is " - << result; + EXPECT_EQ(expected_pattern[i], result[i]) + << " where result is " << result; } } @@ -1077,7 +1126,6 @@ TEST(PrintStlContainerTest, HashMultiSet) { EXPECT_TRUE(std::equal(a, a + kSize, numbers.begin())); } - TEST(PrintStlContainerTest, List) { const std::string a[] = {"hello", "world"}; const list<std::string> strings(a, a + 2); @@ -1107,20 +1155,19 @@ TEST(PrintStlContainerTest, MultiMap) { } TEST(PrintStlContainerTest, Set) { - const unsigned int a[] = { 3, 0, 5 }; + const unsigned int a[] = {3, 0, 5}; set<unsigned int> set1(a, a + 3); EXPECT_EQ("{ 0, 3, 5 }", Print(set1)); } TEST(PrintStlContainerTest, MultiSet) { - const int a[] = { 1, 1, 2, 5, 1 }; + const int a[] = {1, 1, 2, 5, 1}; multiset<int> set1(a, a + 5); EXPECT_EQ("{ 1, 1, 1, 2, 5 }", Print(set1)); } - TEST(PrintStlContainerTest, SinglyLinkedList) { - int a[] = { 9, 2, 8 }; + int a[] = {9, 2, 8}; const std::forward_list<int> ints(a, a + 3); EXPECT_EQ("{ 9, 2, 8 }", Print(ints)); } @@ -1137,33 +1184,46 @@ TEST(PrintStlContainerTest, Vector) { EXPECT_EQ("{ 1, 2 }", Print(v)); } +TEST(PrintStlContainerTest, StdSpan) { +#if GTEST_INTERNAL_HAS_STD_SPAN + int a[] = {3, 6, 5}; + std::span<int> s = a; + + EXPECT_EQ("{ 3, 6, 5 }", Print(s)); +#else + GTEST_SKIP() << "Does not have std::span."; +#endif // GTEST_INTERNAL_HAS_STD_SPAN +} + TEST(PrintStlContainerTest, LongSequence) { - const int a[100] = { 1, 2, 3 }; + const int a[100] = {1, 2, 3}; const vector<int> v(a, a + 100); - EXPECT_EQ("{ 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, " - "0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... }", Print(v)); + EXPECT_EQ( + "{ 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, " + "0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... }", + Print(v)); } TEST(PrintStlContainerTest, NestedContainer) { - const int a1[] = { 1, 2 }; - const int a2[] = { 3, 4, 5 }; + const int a1[] = {1, 2}; + const int a2[] = {3, 4, 5}; const list<int> l1(a1, a1 + 2); const list<int> l2(a2, a2 + 3); - vector<list<int> > v; + vector<list<int>> v; v.push_back(l1); v.push_back(l2); EXPECT_EQ("{ { 1, 2 }, { 3, 4, 5 } }", Print(v)); } TEST(PrintStlContainerTest, OneDimensionalNativeArray) { - const int a[3] = { 1, 2, 3 }; + const int a[3] = {1, 2, 3}; NativeArray<int> b(a, 3, RelationToSourceReference()); EXPECT_EQ("{ 1, 2, 3 }", Print(b)); } TEST(PrintStlContainerTest, TwoDimensionalNativeArray) { - const int a[2][3] = { { 1, 2, 3 }, { 4, 5, 6 } }; + const int a[2][3] = {{1, 2, 3}, {4, 5, 6}}; NativeArray<int[3]> b(a, 2, RelationToSourceReference()); EXPECT_EQ("{ { 1, 2, 3 }, { 4, 5, 6 } }", Print(b)); } @@ -1215,20 +1275,18 @@ TEST(PrintStdTupleTest, VariousSizes) { t10(false, 'a', static_cast<short>(3), 4, 5, 1.5F, -2.5, str, // NOLINT nullptr, "10"); EXPECT_EQ("(false, 'a' (97, 0x61), 3, 4, 5, 1.5, -2.5, " + PrintPointer(str) + - " pointing to \"8\", NULL, \"10\")", + " pointing to \"8\", NULL, \"10\")", Print(t10)); } // Nested tuples. TEST(PrintStdTupleTest, NestedTuple) { - ::std::tuple< ::std::tuple<int, bool>, char> nested( - ::std::make_tuple(5, true), 'a'); + ::std::tuple<::std::tuple<int, bool>, char> nested(::std::make_tuple(5, true), + 'a'); EXPECT_EQ("((5, true), 'a' (97, 0x61))", Print(nested)); } -TEST(PrintNullptrT, Basic) { - EXPECT_EQ("(nullptr)", Print(nullptr)); -} +TEST(PrintNullptrT, Basic) { EXPECT_EQ("(nullptr)", Print(nullptr)); } TEST(PrintReferenceWrapper, Printable) { int x = 5; @@ -1252,8 +1310,7 @@ TEST(PrintReferenceWrapper, Unprintable) { // Unprintable types in the global namespace. TEST(PrintUnprintableTypeTest, InGlobalNamespace) { - EXPECT_EQ("1-byte object <00>", - Print(UnprintableTemplateInGlobal<char>())); + EXPECT_EQ("1-byte object <00>", Print(UnprintableTemplateInGlobal<char>())); } // Unprintable types in a user namespace. @@ -1270,14 +1327,15 @@ struct Big { }; TEST(PrintUnpritableTypeTest, BigObject) { - EXPECT_EQ("257-byte object <00-00 00-00 00-00 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 ... 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " - "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00>", - Print(Big())); + EXPECT_EQ( + "257-byte object <00-00 00-00 00-00 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 ... 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 " + "00-00 00-00 00-00 00-00 00-00 00-00 00-00 00-00 00>", + Print(Big())); } // Tests printing user-defined streamable types. @@ -1320,8 +1378,7 @@ TEST(PrintStreamableTypeTest, PathLikeInUserNamespace) { // Tests printing user-defined types that have a PrintTo() function. TEST(PrintPrintableTypeTest, InUserNamespace) { - EXPECT_EQ("PrintableViaPrintTo: 0", - Print(::foo::PrintableViaPrintTo())); + EXPECT_EQ("PrintableViaPrintTo: 0", Print(::foo::PrintableViaPrintTo())); } // Tests printing a pointer to a user-defined type that has a << @@ -1343,16 +1400,14 @@ TEST(PrintReferenceTest, PrintsAddressAndValue) { int n = 5; EXPECT_EQ("@" + PrintPointer(&n) + " 5", PrintByRef(n)); - int a[2][3] = { - { 0, 1, 2 }, - { 3, 4, 5 } - }; + int a[2][3] = {{0, 1, 2}, {3, 4, 5}}; EXPECT_EQ("@" + PrintPointer(a) + " { { 0, 1, 2 }, { 3, 4, 5 } }", PrintByRef(a)); const ::foo::UnprintableInFoo x; - EXPECT_EQ("@" + PrintPointer(&x) + " 16-byte object " - "<EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>", + EXPECT_EQ("@" + PrintPointer(&x) + + " 16-byte object " + "<EF-12 00-00 34-AB 00-00 00-00 00-00 00-00 00-00>", PrintByRef(x)); } @@ -1368,33 +1423,29 @@ TEST(PrintReferenceTest, HandlesFunctionPointer) { // this limitation. const std::string fp_string = PrintPointer(reinterpret_cast<const void*>( reinterpret_cast<internal::BiggestInt>(fp))); - EXPECT_EQ("@" + fp_pointer_string + " " + fp_string, - PrintByRef(fp)); + EXPECT_EQ("@" + fp_pointer_string + " " + fp_string, PrintByRef(fp)); } // Tests that the universal printer prints a member function pointer // passed by reference. TEST(PrintReferenceTest, HandlesMemberFunctionPointer) { int (Foo::*p)(char ch) = &Foo::MyMethod; - EXPECT_TRUE(HasPrefix( - PrintByRef(p), - "@" + PrintPointer(reinterpret_cast<const void*>(&p)) + " " + - Print(sizeof(p)) + "-byte object ")); + EXPECT_TRUE(HasPrefix(PrintByRef(p), + "@" + PrintPointer(reinterpret_cast<const void*>(&p)) + + " " + Print(sizeof(p)) + "-byte object ")); char (Foo::*p2)(int n) = &Foo::MyVirtualMethod; - EXPECT_TRUE(HasPrefix( - PrintByRef(p2), - "@" + PrintPointer(reinterpret_cast<const void*>(&p2)) + " " + - Print(sizeof(p2)) + "-byte object ")); + EXPECT_TRUE(HasPrefix(PrintByRef(p2), + "@" + PrintPointer(reinterpret_cast<const void*>(&p2)) + + " " + Print(sizeof(p2)) + "-byte object ")); } // Tests that the universal printer prints a member variable pointer // passed by reference. TEST(PrintReferenceTest, HandlesMemberVariablePointer) { int Foo::*p = &Foo::value; // NOLINT - EXPECT_TRUE(HasPrefix( - PrintByRef(p), - "@" + PrintPointer(&p) + " " + Print(sizeof(p)) + "-byte object ")); + EXPECT_TRUE(HasPrefix(PrintByRef(p), "@" + PrintPointer(&p) + " " + + Print(sizeof(p)) + "-byte object ")); } // Tests that FormatForComparisonFailureMessage(), which is used to print @@ -1403,8 +1454,7 @@ TEST(PrintReferenceTest, HandlesMemberVariablePointer) { // scalar TEST(FormatForComparisonFailureMessageTest, WorksForScalar) { - EXPECT_STREQ("123", - FormatForComparisonFailureMessage(123, 124).c_str()); + EXPECT_STREQ("123", FormatForComparisonFailureMessage(123, 124).c_str()); } // non-char pointer @@ -1418,9 +1468,8 @@ TEST(FormatForComparisonFailureMessageTest, WorksForNonCharPointer) { TEST(FormatForComparisonFailureMessageTest, FormatsNonCharArrayAsPointer) { // In expression 'array == x', 'array' is compared by pointer. // Therefore we want to print an array operand as a pointer. - int n[] = { 1, 2, 3 }; - EXPECT_EQ(PrintPointer(n), - FormatForComparisonFailureMessage(n, n).c_str()); + int n[] = {1, 2, 3}; + EXPECT_EQ(PrintPointer(n), FormatForComparisonFailureMessage(n, n).c_str()); } // Tests formatting a char pointer when it's compared with another pointer. @@ -1436,8 +1485,7 @@ TEST(FormatForComparisonFailureMessageTest, WorksForCharPointerVsPointer) { // const char* const char* s = "hello"; - EXPECT_EQ(PrintPointer(s), - FormatForComparisonFailureMessage(s, s).c_str()); + EXPECT_EQ(PrintPointer(s), FormatForComparisonFailureMessage(s, s).c_str()); // char* char ch = 'a'; @@ -1454,8 +1502,7 @@ TEST(FormatForComparisonFailureMessageTest, WorksForWCharPointerVsPointer) { // const wchar_t* const wchar_t* s = L"hello"; - EXPECT_EQ(PrintPointer(s), - FormatForComparisonFailureMessage(s, s).c_str()); + EXPECT_EQ(PrintPointer(s), FormatForComparisonFailureMessage(s, s).c_str()); // wchar_t* wchar_t ch = L'a'; @@ -1552,13 +1599,11 @@ TEST(FormatForComparisonFailureMessageTest, WorksForWCharArrayVsStdWString) { // Useful for testing PrintToString(). We cannot use EXPECT_EQ() // there as its implementation uses PrintToString(). The caller must // ensure that 'value' has no side effect. -#define EXPECT_PRINT_TO_STRING_(value, expected_string) \ - EXPECT_TRUE(PrintToString(value) == (expected_string)) \ +#define EXPECT_PRINT_TO_STRING_(value, expected_string) \ + EXPECT_TRUE(PrintToString(value) == (expected_string)) \ << " where " #value " prints as " << (PrintToString(value)) -TEST(PrintToStringTest, WorksForScalar) { - EXPECT_PRINT_TO_STRING_(123, "123"); -} +TEST(PrintToStringTest, WorksForScalar) { EXPECT_PRINT_TO_STRING_(123, "123"); } TEST(PrintToStringTest, WorksForPointerToConstChar) { const char* p = "hello"; @@ -1583,7 +1628,7 @@ TEST(PrintToStringTest, EscapesForPointerToNonConstChar) { } TEST(PrintToStringTest, WorksForArray) { - int n[3] = { 1, 2, 3 }; + int n[3] = {1, 2, 3}; EXPECT_PRINT_TO_STRING_(n, "{ 1, 2, 3 }"); } @@ -1600,8 +1645,8 @@ TEST(PrintToStringTest, WorksForCharArrayWithEmbeddedNul) { EXPECT_PRINT_TO_STRING_(mutable_str_with_nul, "\"hello\\0 world\""); } - TEST(PrintToStringTest, ContainsNonLatin) { - // Sanity test with valid UTF-8. Prints both in hex and as text. +TEST(PrintToStringTest, ContainsNonLatin) { + // Test with valid UTF-8. Prints both in hex and as text. std::string non_ascii_str = ::std::string("오전 4:30"); EXPECT_PRINT_TO_STRING_(non_ascii_str, "\"\\xEC\\x98\\xA4\\xEC\\xA0\\x84 4:30\"\n" @@ -1612,62 +1657,86 @@ TEST(PrintToStringTest, WorksForCharArrayWithEmbeddedNul) { "\n As Text: \"From ä — ẑ\""); } +TEST(PrintToStringTest, PrintStreamableInLocal) { + EXPECT_STREQ("StreamableInLocal", + PrintToString(foo::StreamableInLocal()).c_str()); +} + +TEST(PrintToStringTest, PrintReferenceToStreamableInLocal) { + foo::StreamableInLocal s; + std::reference_wrapper<foo::StreamableInLocal> r(s); + EXPECT_STREQ("StreamableInLocal", PrintToString(r).c_str()); +} + +TEST(PrintToStringTest, PrintReferenceToStreamableInGlobal) { + StreamableInGlobal s; + std::reference_wrapper<StreamableInGlobal> r(s); + EXPECT_STREQ("StreamableInGlobal", PrintToString(r).c_str()); +} + +#ifdef GTEST_HAS_ABSL +TEST(PrintToStringTest, AbslStringify) { + EXPECT_PRINT_TO_STRING_(Point(), "(10, 20)"); +} +#endif + TEST(IsValidUTF8Test, IllFormedUTF8) { // The following test strings are ill-formed UTF-8 and are printed // as hex only (or ASCII, in case of ASCII bytes) because IsValidUTF8() is // expected to fail, thus output does not contain "As Text:". - static const char *const kTestdata[][2] = { - // 2-byte lead byte followed by a single-byte character. - {"\xC3\x74", "\"\\xC3t\""}, - // Valid 2-byte character followed by an orphan trail byte. - {"\xC3\x84\xA4", "\"\\xC3\\x84\\xA4\""}, - // Lead byte without trail byte. - {"abc\xC3", "\"abc\\xC3\""}, - // 3-byte lead byte, single-byte character, orphan trail byte. - {"x\xE2\x70\x94", "\"x\\xE2p\\x94\""}, - // Truncated 3-byte character. - {"\xE2\x80", "\"\\xE2\\x80\""}, - // Truncated 3-byte character followed by valid 2-byte char. - {"\xE2\x80\xC3\x84", "\"\\xE2\\x80\\xC3\\x84\""}, - // Truncated 3-byte character followed by a single-byte character. - {"\xE2\x80\x7A", "\"\\xE2\\x80z\""}, - // 3-byte lead byte followed by valid 3-byte character. - {"\xE2\xE2\x80\x94", "\"\\xE2\\xE2\\x80\\x94\""}, - // 4-byte lead byte followed by valid 3-byte character. - {"\xF0\xE2\x80\x94", "\"\\xF0\\xE2\\x80\\x94\""}, - // Truncated 4-byte character. - {"\xF0\xE2\x80", "\"\\xF0\\xE2\\x80\""}, - // Invalid UTF-8 byte sequences embedded in other chars. - {"abc\xE2\x80\x94\xC3\x74xyc", "\"abc\\xE2\\x80\\x94\\xC3txyc\""}, - {"abc\xC3\x84\xE2\x80\xC3\x84xyz", - "\"abc\\xC3\\x84\\xE2\\x80\\xC3\\x84xyz\""}, - // Non-shortest UTF-8 byte sequences are also ill-formed. - // The classics: xC0, xC1 lead byte. - {"\xC0\x80", "\"\\xC0\\x80\""}, - {"\xC1\x81", "\"\\xC1\\x81\""}, - // Non-shortest sequences. - {"\xE0\x80\x80", "\"\\xE0\\x80\\x80\""}, - {"\xf0\x80\x80\x80", "\"\\xF0\\x80\\x80\\x80\""}, - // Last valid code point before surrogate range, should be printed as text, - // too. - {"\xED\x9F\xBF", "\"\\xED\\x9F\\xBF\"\n As Text: \"\""}, - // Start of surrogate lead. Surrogates are not printed as text. - {"\xED\xA0\x80", "\"\\xED\\xA0\\x80\""}, - // Last non-private surrogate lead. - {"\xED\xAD\xBF", "\"\\xED\\xAD\\xBF\""}, - // First private-use surrogate lead. - {"\xED\xAE\x80", "\"\\xED\\xAE\\x80\""}, - // Last private-use surrogate lead. - {"\xED\xAF\xBF", "\"\\xED\\xAF\\xBF\""}, - // Mid-point of surrogate trail. - {"\xED\xB3\xBF", "\"\\xED\\xB3\\xBF\""}, - // First valid code point after surrogate range, should be printed as text, - // too. - {"\xEE\x80\x80", "\"\\xEE\\x80\\x80\"\n As Text: \"\""} - }; - - for (int i = 0; i < int(sizeof(kTestdata)/sizeof(kTestdata[0])); ++i) { + static const char* const kTestdata[][2] = { + // 2-byte lead byte followed by a single-byte character. + {"\xC3\x74", "\"\\xC3t\""}, + // Valid 2-byte character followed by an orphan trail byte. + {"\xC3\x84\xA4", "\"\\xC3\\x84\\xA4\""}, + // Lead byte without trail byte. + {"abc\xC3", "\"abc\\xC3\""}, + // 3-byte lead byte, single-byte character, orphan trail byte. + {"x\xE2\x70\x94", "\"x\\xE2p\\x94\""}, + // Truncated 3-byte character. + {"\xE2\x80", "\"\\xE2\\x80\""}, + // Truncated 3-byte character followed by valid 2-byte char. + {"\xE2\x80\xC3\x84", "\"\\xE2\\x80\\xC3\\x84\""}, + // Truncated 3-byte character followed by a single-byte character. + {"\xE2\x80\x7A", "\"\\xE2\\x80z\""}, + // 3-byte lead byte followed by valid 3-byte character. + {"\xE2\xE2\x80\x94", "\"\\xE2\\xE2\\x80\\x94\""}, + // 4-byte lead byte followed by valid 3-byte character. + {"\xF0\xE2\x80\x94", "\"\\xF0\\xE2\\x80\\x94\""}, + // Truncated 4-byte character. + {"\xF0\xE2\x80", "\"\\xF0\\xE2\\x80\""}, + // Invalid UTF-8 byte sequences embedded in other chars. + {"abc\xE2\x80\x94\xC3\x74xyc", "\"abc\\xE2\\x80\\x94\\xC3txyc\""}, + {"abc\xC3\x84\xE2\x80\xC3\x84xyz", + "\"abc\\xC3\\x84\\xE2\\x80\\xC3\\x84xyz\""}, + // Non-shortest UTF-8 byte sequences are also ill-formed. + // The classics: xC0, xC1 lead byte. + {"\xC0\x80", "\"\\xC0\\x80\""}, + {"\xC1\x81", "\"\\xC1\\x81\""}, + // Non-shortest sequences. + {"\xE0\x80\x80", "\"\\xE0\\x80\\x80\""}, + {"\xf0\x80\x80\x80", "\"\\xF0\\x80\\x80\\x80\""}, + // Last valid code point before surrogate range, should be printed as + // text, + // too. + {"\xED\x9F\xBF", "\"\\xED\\x9F\\xBF\"\n As Text: \"\""}, + // Start of surrogate lead. Surrogates are not printed as text. + {"\xED\xA0\x80", "\"\\xED\\xA0\\x80\""}, + // Last non-private surrogate lead. + {"\xED\xAD\xBF", "\"\\xED\\xAD\\xBF\""}, + // First private-use surrogate lead. + {"\xED\xAE\x80", "\"\\xED\\xAE\\x80\""}, + // Last private-use surrogate lead. + {"\xED\xAF\xBF", "\"\\xED\\xAF\\xBF\""}, + // Mid-point of surrogate trail. + {"\xED\xB3\xBF", "\"\\xED\\xB3\\xBF\""}, + // First valid code point after surrogate range, should be printed as + // text, + // too. + {"\xEE\x80\x80", "\"\\xEE\\x80\\x80\"\n As Text: \"\""}}; + + for (int i = 0; i < int(sizeof(kTestdata) / sizeof(kTestdata[0])); ++i) { EXPECT_PRINT_TO_STRING_(kTestdata[i][0], kTestdata[i][1]); } } @@ -1772,7 +1841,8 @@ TEST(UniversalPrintTest, SmartPointers) { std::shared_ptr<int> p3(new int(1979)); EXPECT_EQ("(ptr = " + PrintPointer(p3.get()) + ", value = 1979)", PrintToString(p3)); -#if __cpp_lib_shared_ptr_arrays >= 201611L +#if defined(__cpp_lib_shared_ptr_arrays) && \ + (__cpp_lib_shared_ptr_arrays >= 201611L) std::shared_ptr<int[]> p4(new int[2]); EXPECT_EQ("(" + PrintPointer(p4.get()) + ")", PrintToString(p4)); #endif @@ -1791,7 +1861,8 @@ TEST(UniversalPrintTest, SmartPointers) { EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<const int>())); EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<volatile int>())); EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<volatile const int>())); -#if __cpp_lib_shared_ptr_arrays >= 201611L +#if defined(__cpp_lib_shared_ptr_arrays) && \ + (__cpp_lib_shared_ptr_arrays >= 201611L) EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<int[]>())); EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<const int[]>())); EXPECT_EQ("(nullptr)", PrintToString(std::shared_ptr<volatile int[]>())); @@ -1816,15 +1887,15 @@ TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsEmptyTuple) { } TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsOneTuple) { - Strings result = UniversalTersePrintTupleFieldsToStrings( - ::std::make_tuple(1)); + Strings result = + UniversalTersePrintTupleFieldsToStrings(::std::make_tuple(1)); ASSERT_EQ(1u, result.size()); EXPECT_EQ("1", result[0]); } TEST(UniversalTersePrintTupleFieldsToStringsTestWithStd, PrintsTwoTuple) { - Strings result = UniversalTersePrintTupleFieldsToStrings( - ::std::make_tuple(1, 'a')); + Strings result = + UniversalTersePrintTupleFieldsToStrings(::std::make_tuple(1, 'a')); ASSERT_EQ(2u, result.size()); EXPECT_EQ("1", result[0]); EXPECT_EQ("'a' (97, 0x61)", result[1]); @@ -1873,6 +1944,7 @@ TEST_F(PrintAnyTest, NonEmpty) { #if GTEST_INTERNAL_HAS_OPTIONAL TEST(PrintOptionalTest, Basic) { + EXPECT_EQ("(nullopt)", PrintToString(internal::Nullopt())); internal::Optional<int> value; EXPECT_EQ("(nullopt)", PrintToString(value)); value = {7}; |