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// 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_TEST_HELPERS_H_
#define MEDIA_BASE_TEST_HELPERS_H_
#include "base/callback.h"
#include "media/base/pipeline_status.h"
#include "testing/gmock/include/gmock/gmock.h"
class MessageLoop;
namespace media {
// Return a callback that expects to be run once.
base::Closure NewExpectedClosure();
PipelineStatusCB NewExpectedStatusCB(PipelineStatus status);
// Helper class for running a message loop until a callback has run. Useful for
// testing classes that run on more than a single thread.
//
// Events are intended for single use and cannot be reset.
class WaitableMessageLoopEvent {
public:
WaitableMessageLoopEvent();
~WaitableMessageLoopEvent();
// Returns a thread-safe closure that will signal |this| when executed.
base::Closure GetClosure();
PipelineStatusCB GetPipelineStatusCB();
// Runs the current message loop until |this| has been signaled.
//
// Fails the test if the timeout is reached.
void RunAndWait();
// Runs the current message loop until |this| has been signaled and asserts
// that the |expected| status was received.
//
// Fails the test if the timeout is reached.
void RunAndWaitForStatus(PipelineStatus expected);
private:
void OnCallback(PipelineStatus status);
void OnTimeout();
MessageLoop* message_loop_;
bool signaled_;
PipelineStatus status_;
DISALLOW_COPY_AND_ASSIGN(WaitableMessageLoopEvent);
};
} // namespace media
#endif // MEDIA_BASE_TEST_HELPERS_H_
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