1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_ 6 #define MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_ 7 8 #include "testing/gmock/include/gmock/gmock.h" 9 10 namespace media { 11 12 // Matchers for base::Callback and base::Closure. 13 14 MATCHER(IsNullCallback, "a null callback") { 15 return (arg.is_null()); 16 } 17 18 MATCHER(IsNotNullCallback, "a non-null callback") { 19 return (!arg.is_null()); 20 } 21 22 // The RunClosure<N>() action invokes Run() method on the N-th (0-based) 23 // argument of the mock function. 24 25 ACTION_TEMPLATE(RunClosure, 26 HAS_1_TEMPLATE_PARAMS(int, k), 27 AND_0_VALUE_PARAMS()) { 28 ::std::tr1::get<k>(args).Run(); 29 } 30 31 // Various overloads for RunCallback<N>(). 32 // 33 // The RunCallback<N>(p1, p2, ..., p_k) action invokes Run() method on the N-th 34 // (0-based) argument of the mock function, with arguments p1, p2, ..., p_k. 35 // 36 // Notes: 37 // 38 // 1. The arguments are passed by value by default. If you need to 39 // pass an argument by reference, wrap it inside ByRef(). For example, 40 // 41 // RunCallback<1>(5, string("Hello"), ByRef(foo)) 42 // 43 // passes 5 and string("Hello") by value, and passes foo by reference. 44 // 45 // 2. If the callback takes an argument by reference but ByRef() is 46 // not used, it will receive the reference to a copy of the value, 47 // instead of the original value. For example, when the 0-th 48 // argument of the callback takes a const string&, the action 49 // 50 // RunCallback<0>(string("Hello")) 51 // 52 // makes a copy of the temporary string("Hello") object and passes a 53 // reference of the copy, instead of the original temporary object, 54 // to the callback. This makes it easy for a user to define an 55 // RunCallback action from temporary values and have it performed later. 56 57 ACTION_TEMPLATE(RunCallback, 58 HAS_1_TEMPLATE_PARAMS(int, k), 59 AND_0_VALUE_PARAMS()) { 60 return ::std::tr1::get<k>(args).Run(); 61 } 62 63 ACTION_TEMPLATE(RunCallback, 64 HAS_1_TEMPLATE_PARAMS(int, k), 65 AND_1_VALUE_PARAMS(p0)) { 66 return ::std::tr1::get<k>(args).Run(p0); 67 } 68 69 ACTION_TEMPLATE(RunCallback, 70 HAS_1_TEMPLATE_PARAMS(int, k), 71 AND_2_VALUE_PARAMS(p0, p1)) { 72 return ::std::tr1::get<k>(args).Run(p0, p1); 73 } 74 75 ACTION_TEMPLATE(RunCallback, 76 HAS_1_TEMPLATE_PARAMS(int, k), 77 AND_3_VALUE_PARAMS(p0, p1, p2)) { 78 return ::std::tr1::get<k>(args).Run(p0, p1, p2); 79 } 80 81 ACTION_TEMPLATE(RunCallback, 82 HAS_1_TEMPLATE_PARAMS(int, k), 83 AND_4_VALUE_PARAMS(p0, p1, p2, p3)) { 84 return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3); 85 } 86 87 ACTION_TEMPLATE(RunCallback, 88 HAS_1_TEMPLATE_PARAMS(int, k), 89 AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4)) { 90 return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4); 91 } 92 93 ACTION_TEMPLATE(RunCallback, 94 HAS_1_TEMPLATE_PARAMS(int, k), 95 AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5)) { 96 return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4, p5); 97 } 98 99 ACTION_TEMPLATE(RunCallback, 100 HAS_1_TEMPLATE_PARAMS(int, k), 101 AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6)) { 102 return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4, p5, p6); 103 } 104 105 } // namespace media 106 107 #endif // MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_ 108
