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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "mojo/public/cpp/bindings/callback.h" | 5 #include "mojo/public/cpp/bindings/callback.h" |
| 6 #include "mojo/public/cpp/bindings/map.h" | 6 #include "mojo/public/cpp/bindings/map.h" |
| 7 #include "mojo/public/cpp/bindings/string.h" | 7 #include "mojo/public/cpp/bindings/string.h" |
| 8 #include "testing/gtest/include/gtest/gtest.h" | 8 #include "testing/gtest/include/gtest/gtest.h" |
| 9 | 9 |
| 10 namespace mojo { | 10 namespace mojo { |
| (...skipping 26 matching lines...) Expand all Loading... |
| 37 using ExampleMoveOnlyType = Map<int, int>; | 37 using ExampleMoveOnlyType = Map<int, int>; |
| 38 | 38 |
| 39 struct RunnableMoveOnlyParam { | 39 struct RunnableMoveOnlyParam { |
| 40 explicit RunnableMoveOnlyParam(int* calls) : calls(calls) {} | 40 explicit RunnableMoveOnlyParam(int* calls) : calls(calls) {} |
| 41 | 41 |
| 42 void Run(ExampleMoveOnlyType m) const { (*calls)++; } | 42 void Run(ExampleMoveOnlyType m) const { (*calls)++; } |
| 43 | 43 |
| 44 int* calls; | 44 int* calls; |
| 45 }; | 45 }; |
| 46 | 46 |
| 47 int* g_calls = nullptr; | |
| 48 | |
| 49 void FunctionNoArgs() { | |
| 50 (*g_calls)++; | |
| 51 } | |
| 52 | |
| 53 void FunctionOneArg(int increment) { | |
| 54 (*g_calls) += increment; | |
| 55 } | |
| 56 | |
| 57 void FunctionStringArgByConstRef(const String& s) { | |
| 58 (*g_calls)++; | |
| 59 } | |
| 60 | |
| 61 void FunctionMoveOnlyType(ExampleMoveOnlyType m) { | |
| 62 (*g_calls)++; | |
| 63 } | |
| 64 | |
| 65 static_assert(!internal::HasCompatibleCallOperator<RunnableNoArgs>::value, | 47 static_assert(!internal::HasCompatibleCallOperator<RunnableNoArgs>::value, |
| 66 "HasCompatibleCallOperator<Runnable>"); | 48 "HasCompatibleCallOperator<Runnable>"); |
| 67 static_assert(!internal::HasCompatibleCallOperator<RunnableOneArg, int>::value, | 49 static_assert(!internal::HasCompatibleCallOperator<RunnableOneArg, int>::value, |
| 68 "HasCompatibleCallOperator<RunnableOneArg, int>"); | 50 "HasCompatibleCallOperator<RunnableOneArg, int>"); |
| 69 static_assert(!internal::HasCompatibleCallOperator<RunnableStringArgByConstRef, | 51 static_assert(!internal::HasCompatibleCallOperator<RunnableStringArgByConstRef, |
| 70 String>::value, | 52 String>::value, |
| 71 "HasCompatibleCallOperator<RunnableStringArgByConstRef, String>"); | 53 "HasCompatibleCallOperator<RunnableStringArgByConstRef, String>"); |
| 72 static_assert(!internal::HasCompatibleCallOperator<RunnableMoveOnlyParam, | 54 static_assert(!internal::HasCompatibleCallOperator<RunnableMoveOnlyParam, |
| 73 ExampleMoveOnlyType>::value, | 55 ExampleMoveOnlyType>::value, |
| 74 "HasCompatibleCallOperator<RunnableMoveOnlyParam, String>"); | 56 "HasCompatibleCallOperator<RunnableMoveOnlyParam, String>"); |
| (...skipping 12 matching lines...) Expand all Loading... |
| 87 internal::HasCompatibleCallOperator<decltype(lambda_three), String>::value, | 69 internal::HasCompatibleCallOperator<decltype(lambda_three), String>::value, |
| 88 "HasCompatibleCallOperator<lambda [](const String& s) {}, String>"); | 70 "HasCompatibleCallOperator<lambda [](const String& s) {}, String>"); |
| 89 | 71 |
| 90 auto lambda_four = [](ExampleMoveOnlyType m) {}; | 72 auto lambda_four = [](ExampleMoveOnlyType m) {}; |
| 91 static_assert(internal::HasCompatibleCallOperator<decltype(lambda_four), | 73 static_assert(internal::HasCompatibleCallOperator<decltype(lambda_four), |
| 92 ExampleMoveOnlyType>::value, | 74 ExampleMoveOnlyType>::value, |
| 93 "HasCompatibleCallOperator<lambda [](ExampleMoveOnlyType) {}, " | 75 "HasCompatibleCallOperator<lambda [](ExampleMoveOnlyType) {}, " |
| 94 "ExampleMoveOnlyType>"); | 76 "ExampleMoveOnlyType>"); |
| 95 | 77 |
| 96 // Tests constructing and invoking a mojo::Callback from objects with a | 78 // Tests constructing and invoking a mojo::Callback from objects with a |
| 97 // compatible Run() method (called 'runnables'), from lambdas, and from function | 79 // compatible Run() method (called 'runnables') and from lambdas. |
| 98 // pointers. | 80 TEST(CallbackFromLambda, Create) { |
| 99 TEST(Callback, Create) { | |
| 100 int calls = 0; | 81 int calls = 0; |
| 101 | 82 |
| 102 RunnableNoArgs f(&calls); | 83 RunnableNoArgs f(&calls); |
| 103 // Construct from a runnable object. | 84 // Construct from a runnable object. |
| 104 mojo::Callback<void()> cb = f; | 85 mojo::Callback<void()> cb = f; |
| 105 cb.Run(); | 86 cb.Run(); |
| 106 EXPECT_EQ(1, calls); | 87 EXPECT_EQ(1, calls); |
| 107 | 88 |
| 108 // Construct from a parameterless lambda that captures one variable. | 89 // Construct from a parameterless lambda that captures one variable. |
| 109 cb = [&calls]() { calls++; }; | 90 cb = [&calls]() { calls++; }; |
| (...skipping 23 matching lines...) Expand all Loading... |
| 133 | 114 |
| 134 ExampleMoveOnlyType m; | 115 ExampleMoveOnlyType m; |
| 135 mojo::Callback<void(ExampleMoveOnlyType)> cb_with_move_only_param = | 116 mojo::Callback<void(ExampleMoveOnlyType)> cb_with_move_only_param = |
| 136 RunnableMoveOnlyParam(&calls); | 117 RunnableMoveOnlyParam(&calls); |
| 137 cb_with_move_only_param.Run(m.Clone()); | 118 cb_with_move_only_param.Run(m.Clone()); |
| 138 EXPECT_EQ(7, calls); | 119 EXPECT_EQ(7, calls); |
| 139 | 120 |
| 140 cb_with_move_only_param = [&calls](ExampleMoveOnlyType m) { calls++; }; | 121 cb_with_move_only_param = [&calls](ExampleMoveOnlyType m) { calls++; }; |
| 141 cb_with_move_only_param.Run(m.Clone()); | 122 cb_with_move_only_param.Run(m.Clone()); |
| 142 EXPECT_EQ(8, calls); | 123 EXPECT_EQ(8, calls); |
| 143 | |
| 144 // Construct from a function pointer. | |
| 145 g_calls = &calls; | |
| 146 | |
| 147 cb = &FunctionNoArgs; | |
| 148 cb.Run(); | |
| 149 EXPECT_EQ(9, calls); | |
| 150 | |
| 151 cb_with_param = &FunctionOneArg; | |
| 152 cb_with_param.Run(1); | |
| 153 EXPECT_EQ(10, calls); | |
| 154 | |
| 155 cb_with_string_param = &FunctionStringArgByConstRef; | |
| 156 cb_with_string_param.Run(String("hello")); | |
| 157 EXPECT_EQ(11, calls); | |
| 158 | |
| 159 cb_with_move_only_param = &FunctionMoveOnlyType; | |
| 160 cb_with_move_only_param.Run(m.Clone()); | |
| 161 EXPECT_EQ(12, calls); | |
| 162 | |
| 163 g_calls = nullptr; | |
| 164 } | |
| 165 | |
| 166 bool g_overloaded_function_with_int_param_called = false; | |
| 167 | |
| 168 void OverloadedFunction(int param) { | |
| 169 g_overloaded_function_with_int_param_called = true; | |
| 170 } | |
| 171 | |
| 172 bool g_overloaded_function_with_double_param_called = false; | |
| 173 | |
| 174 void OverloadedFunction(double param) { | |
| 175 g_overloaded_function_with_double_param_called = true; | |
| 176 } | |
| 177 | |
| 178 // Tests constructing and invoking a mojo::Callback from pointers to overloaded | |
| 179 // functions. | |
| 180 TEST(Callback, CreateFromOverloadedFunctionPtr) { | |
| 181 g_overloaded_function_with_int_param_called = false; | |
| 182 mojo::Callback<void(int)> cb_with_int_param = &OverloadedFunction; | |
| 183 cb_with_int_param.Run(123); | |
| 184 EXPECT_TRUE(g_overloaded_function_with_int_param_called); | |
| 185 g_overloaded_function_with_int_param_called = false; | |
| 186 | |
| 187 g_overloaded_function_with_double_param_called = false; | |
| 188 mojo::Callback<void(double)> cb_with_double_param = &OverloadedFunction; | |
| 189 cb_with_double_param.Run(123); | |
| 190 EXPECT_TRUE(g_overloaded_function_with_double_param_called); | |
| 191 g_overloaded_function_with_double_param_called = false; | |
| 192 } | 124 } |
| 193 | 125 |
| 194 } // namespace | 126 } // namespace |
| 195 } // namespace test | 127 } // namespace test |
| 196 } // namespace mojo | 128 } // namespace mojo |
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