blob: 2c5475881989a109236c938250359247986c49f7 [file] [log] [blame]
// Copyright 2014 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 "base/bind.h"
#include "base/bind_helpers.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread_task_runner_handle.h"
#include "cc/base/unique_notifier.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
class UniqueNotifierTest : public testing::Test {
public:
UniqueNotifierTest() : notification_count_(0) {}
void SetUp() override { ResetNotificationCount(); }
void Notify() { ++notification_count_; }
int NotificationCount() const { return notification_count_; }
void ResetNotificationCount() { notification_count_ = 0; }
protected:
int notification_count_;
};
TEST_F(UniqueNotifierTest, Schedule) {
{
UniqueNotifier notifier(
base::ThreadTaskRunnerHandle::Get().get(),
base::Bind(&UniqueNotifierTest::Notify, base::Unretained(this)));
EXPECT_EQ(0, NotificationCount());
// Basic schedule should result in a run.
notifier.Schedule();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, NotificationCount());
// Multiple schedules should only result in one run.
for (int i = 0; i < 5; ++i)
notifier.Schedule();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2, NotificationCount());
// Schedule and cancel.
notifier.Schedule();
notifier.Cancel();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(2, NotificationCount());
notifier.Schedule();
notifier.Cancel();
notifier.Schedule();
base::RunLoop().RunUntilIdle();
EXPECT_EQ(3, NotificationCount());
notifier.Schedule();
}
// Notifier went out of scope, so we don't expect to get a notification.
base::RunLoop().RunUntilIdle();
EXPECT_EQ(3, NotificationCount());
}
} // namespace
} // namespace cc