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// Copyright 2018 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 "third_party/blink/renderer/platform/wtf/threading_primitives.h"
#include "base/bind.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/scoped_blocking_call.h"
#include "base/threading/thread.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace WTF {
namespace {
class MockBlockingObserver : public base::internal::BlockingObserver {
public:
// base::internal::BlockingObserver
MOCK_METHOD1(BlockingStarted, void(base::BlockingType));
MOCK_METHOD0(BlockingTypeUpgraded, void());
MOCK_METHOD0(BlockingEnded, void());
};
class ThreadConditionTest : public testing::Test {
public:
ThreadConditionTest() : condition_(mutex_) {}
void RunOtherThreadInfiniteWait() {
MutexLocker lock(mutex_);
ready_.Signal();
base::internal::SetBlockingObserverForCurrentThread(&observer_);
EXPECT_CALL(observer_, BlockingStarted(base::BlockingType::MAY_BLOCK));
EXPECT_CALL(observer_, BlockingEnded());
condition_.Wait();
testing::Mock::VerifyAndClear(&observer_);
}
protected:
// Used to make sure that the other thread gets to wait before the main thread
// signals it. Otherwise it may wait forever.
base::WaitableEvent ready_;
testing::StrictMock<MockBlockingObserver> observer_;
Mutex mutex_;
ThreadCondition condition_;
};
TEST_F(ThreadConditionTest, WaitReportsBlockingCall) {
base::Thread other_thread("other thread");
other_thread.StartAndWaitForTesting();
other_thread.task_runner()->PostTask(
FROM_HERE,
base::BindOnce(&ThreadConditionTest::RunOtherThreadInfiniteWait,
base::Unretained(this)));
ready_.Wait();
MutexLocker lock(mutex_);
condition_.Signal();
}
} // namespace
} // namespace WTF
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