// 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.
#ifndef MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_
#define MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_
#include "testing/gmock/include/gmock/gmock.h"
namespace media {
// Matchers for base::Callback and base::Closure.
MATCHER(IsNullCallback, "a null callback") {
return (arg.is_null());
}
MATCHER(IsNotNullCallback, "a non-null callback") {
return (!arg.is_null());
}
// The RunClosure<N>() action invokes Run() method on the N-th (0-based)
// argument of the mock function.
ACTION_TEMPLATE(RunClosure,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_0_VALUE_PARAMS()) {
::std::tr1::get<k>(args).Run();
}
// Various overloads for RunCallback<N>().
//
// The RunCallback<N>(p1, p2, ..., p_k) action invokes Run() method on the N-th
// (0-based) argument of the mock function, with arguments p1, p2, ..., p_k.
//
// Notes:
//
// 1. The arguments are passed by value by default. If you need to
// pass an argument by reference, wrap it inside ByRef(). For example,
//
// RunCallback<1>(5, string("Hello"), ByRef(foo))
//
// passes 5 and string("Hello") by value, and passes foo by reference.
//
// 2. If the callback takes an argument by reference but ByRef() is
// not used, it will receive the reference to a copy of the value,
// instead of the original value. For example, when the 0-th
// argument of the callback takes a const string&, the action
//
// RunCallback<0>(string("Hello"))
//
// makes a copy of the temporary string("Hello") object and passes a
// reference of the copy, instead of the original temporary object,
// to the callback. This makes it easy for a user to define an
// RunCallback action from temporary values and have it performed later.
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_0_VALUE_PARAMS()) {
return ::std::tr1::get<k>(args).Run();
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_1_VALUE_PARAMS(p0)) {
return ::std::tr1::get<k>(args).Run(p0);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_2_VALUE_PARAMS(p0, p1)) {
return ::std::tr1::get<k>(args).Run(p0, p1);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_3_VALUE_PARAMS(p0, p1, p2)) {
return ::std::tr1::get<k>(args).Run(p0, p1, p2);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_4_VALUE_PARAMS(p0, p1, p2, p3)) {
return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4)) {
return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5)) {
return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4, p5);
}
ACTION_TEMPLATE(RunCallback,
HAS_1_TEMPLATE_PARAMS(int, k),
AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6)) {
return ::std::tr1::get<k>(args).Run(p0, p1, p2, p3, p4, p5, p6);
}
} // namespace media
#endif // MEDIA_BASE_GMOCK_CALLBACK_SUPPORT_H_