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-rw-r--r--third_party/chromium/base/template_util_unittest.cc117
1 files changed, 117 insertions, 0 deletions
diff --git a/third_party/chromium/base/template_util_unittest.cc b/third_party/chromium/base/template_util_unittest.cc
new file mode 100644
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--- /dev/null
+++ b/third_party/chromium/base/template_util_unittest.cc
@@ -0,0 +1,117 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/template_util.h"
+
+#include <gtest/gtest.h>
+
+#include "base/basictypes.h"
+
+namespace base {
+namespace {
+
+struct AStruct {};
+class AClass {};
+enum AnEnum {};
+
+class Parent {};
+class Child : public Parent {};
+
+using std::is_pointer;
+using std::is_array;
+using std::is_convertible;
+using std::is_same;
+using std::is_class;
+using std::is_member_function_pointer;
+
+// is_pointer<Type>
+COMPILE_ASSERT(!is_pointer<int>::value, IsPointer);
+COMPILE_ASSERT(!is_pointer<int&>::value, IsPointer);
+COMPILE_ASSERT(is_pointer<int*>::value, IsPointer);
+COMPILE_ASSERT(is_pointer<const int*>::value, IsPointer);
+
+// is_array<Type>
+COMPILE_ASSERT(!is_array<int>::value, IsArray);
+COMPILE_ASSERT(!is_array<int*>::value, IsArray);
+COMPILE_ASSERT(!is_array<int(*)[3]>::value, IsArray);
+COMPILE_ASSERT(is_array<int[]>::value, IsArray);
+COMPILE_ASSERT(is_array<const int[]>::value, IsArray);
+COMPILE_ASSERT(is_array<int[3]>::value, IsArray);
+
+// is_non_const_reference<Type>
+COMPILE_ASSERT(!is_non_const_reference<int>::value, IsNonConstReference);
+COMPILE_ASSERT(!is_non_const_reference<const int&>::value, IsNonConstReference);
+COMPILE_ASSERT(is_non_const_reference<int&>::value, IsNonConstReference);
+
+// is_convertible<From, To>
+
+// Extra parens needed to make preprocessor macro parsing happy. Otherwise,
+// it sees the equivalent of:
+//
+// (is_convertible < Child), (Parent > ::value)
+//
+// Silly C++.
+COMPILE_ASSERT( (is_convertible<Child, Parent>::value), IsConvertible);
+COMPILE_ASSERT(!(is_convertible<Parent, Child>::value), IsConvertible);
+COMPILE_ASSERT(!(is_convertible<Parent, AStruct>::value), IsConvertible);
+COMPILE_ASSERT( (is_convertible<int, double>::value), IsConvertible);
+COMPILE_ASSERT( (is_convertible<int*, void*>::value), IsConvertible);
+COMPILE_ASSERT(!(is_convertible<void*, int*>::value), IsConvertible);
+
+// Array types are an easy corner case. Make sure to test that
+// it does indeed compile.
+COMPILE_ASSERT(!(is_convertible<int[10], double>::value), IsConvertible);
+COMPILE_ASSERT(!(is_convertible<double, int[10]>::value), IsConvertible);
+COMPILE_ASSERT( (is_convertible<int[10], int*>::value), IsConvertible);
+
+// is_same<Type1, Type2>
+COMPILE_ASSERT(!(is_same<Child, Parent>::value), IsSame);
+COMPILE_ASSERT(!(is_same<Parent, Child>::value), IsSame);
+COMPILE_ASSERT( (is_same<Parent, Parent>::value), IsSame);
+COMPILE_ASSERT( (is_same<int*, int*>::value), IsSame);
+COMPILE_ASSERT( (is_same<int, int>::value), IsSame);
+COMPILE_ASSERT( (is_same<void, void>::value), IsSame);
+COMPILE_ASSERT(!(is_same<int, double>::value), IsSame);
+
+
+// is_class<Type>
+COMPILE_ASSERT(is_class<AStruct>::value, IsClass);
+COMPILE_ASSERT(is_class<AClass>::value, IsClass);
+COMPILE_ASSERT(!is_class<AnEnum>::value, IsClass);
+COMPILE_ASSERT(!is_class<int>::value, IsClass);
+COMPILE_ASSERT(!is_class<char*>::value, IsClass);
+COMPILE_ASSERT(!is_class<int&>::value, IsClass);
+COMPILE_ASSERT(!is_class<char[3]>::value, IsClass);
+
+
+COMPILE_ASSERT(!is_member_function_pointer<int>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<int*>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<void*>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<AStruct>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<AStruct*>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<void(*)()>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<int(*)(int)>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(!is_member_function_pointer<int(*)(int, int)>::value,
+ IsMemberFunctionPointer);
+
+COMPILE_ASSERT(is_member_function_pointer<void (AStruct::*)()>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(is_member_function_pointer<void (AStruct::*)(int)>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(is_member_function_pointer<int (AStruct::*)(int)>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(is_member_function_pointer<int (AStruct::*)(int) const>::value,
+ IsMemberFunctionPointer);
+COMPILE_ASSERT(is_member_function_pointer<int (AStruct::*)(int, int)>::value,
+ IsMemberFunctionPointer);
+
+} // namespace
+} // namespace base