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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/power/ml/boot_clock.h"
#include "base/test/task_environment.h"
#include "base/threading/platform_thread.h"
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace power {
namespace ml {
TEST(BootClockTest, Basic) {
BootClock boot_clock;
constexpr base::TimeDelta sleep_duration = base::Milliseconds(10);
const base::TimeDelta init_time_since_boot = boot_clock.GetTimeSinceBoot();
EXPECT_GE(init_time_since_boot, base::TimeDelta());
const base::TimeDelta expected_end_time_since_boot =
init_time_since_boot + sleep_duration;
base::PlatformThread::Sleep(sleep_duration);
EXPECT_GE(boot_clock.GetTimeSinceBoot(), expected_end_time_since_boot);
}
TEST(BootClockTest, UnderMockTime) {
base::test::TaskEnvironment task_environment(
base::test::TaskEnvironment::TimeSource::MOCK_TIME);
BootClock boot_clock;
constexpr base::TimeDelta mock_sleep_duration = base::Seconds(200);
const base::TimeDelta init_time_since_boot = boot_clock.GetTimeSinceBoot();
EXPECT_GE(init_time_since_boot, base::TimeDelta());
const base::TimeDelta expected_end_time_since_boot =
init_time_since_boot + mock_sleep_duration;
task_environment.FastForwardBy(mock_sleep_duration);
EXPECT_EQ(boot_clock.GetTimeSinceBoot(), expected_end_time_since_boot);
}
} // namespace ml
} // namespace power
} // namespace ash
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