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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.
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/time/clock.h"
#include "media/base/clock.h"
#include "testing/gmock/include/gmock/gmock.h"
using ::testing::InSequence;
using ::testing::Return;
using ::testing::StrictMock;
namespace base {
// Provide a stream output operator so we can use EXPECT_EQ(...) with TimeDelta.
//
// TODO(scherkus): move this into the testing package.
static std::ostream& operator<<(std::ostream& stream, const TimeDelta& time) {
return (stream << time.ToInternalValue());
}
} // namespace
namespace media {
static const int kDurationInSeconds = 120;
class ClockTest : public ::testing::Test {
public:
ClockTest() : clock_(&test_tick_clock_) {
SetDuration();
}
protected:
void SetDuration() {
const base::TimeDelta kDuration =
base::TimeDelta::FromSeconds(kDurationInSeconds);
clock_.SetDuration(kDuration);
EXPECT_EQ(kDuration, clock_.Duration());
}
void AdvanceSystemTime(base::TimeDelta delta) {
test_tick_clock_.Advance(delta);
}
base::SimpleTestTickClock test_tick_clock_;
Clock clock_;
base::TimeDelta time_elapsed_;
};
TEST_F(ClockTest, Created) {
const base::TimeDelta kExpected = base::TimeDelta::FromSeconds(0);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Play_NormalSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(2);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(kTimeToAdvance, clock_.Elapsed());
}
TEST_F(ClockTest, Play_DoubleSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(5);
clock_.SetPlaybackRate(2.0f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(2 * kTimeToAdvance, clock_.Elapsed());
}
TEST_F(ClockTest, Play_HalfSpeed) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeToAdvance = base::TimeDelta::FromSeconds(4);
clock_.SetPlaybackRate(0.5f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kTimeToAdvance);
EXPECT_EQ(kTimeToAdvance / 2, clock_.Elapsed());
}
TEST_F(ClockTest, Play_ZeroSpeed) {
// We'll play for 2 seconds at normal speed, 4 seconds at zero speed, and 8
// seconds at normal speed.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration1 = base::TimeDelta::FromSeconds(2);
const base::TimeDelta kPlayDuration2 = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPlayDuration3 = base::TimeDelta::FromSeconds(8);
const base::TimeDelta kExpected = kPlayDuration1 + kPlayDuration3;
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration1);
clock_.SetPlaybackRate(0.0f);
AdvanceSystemTime(kPlayDuration2);
clock_.SetPlaybackRate(1.0f);
AdvanceSystemTime(kPlayDuration3);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Play_MultiSpeed) {
// We'll play for 2 seconds at half speed, 4 seconds at normal speed, and 8
// seconds at double speed.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration1 = base::TimeDelta::FromSeconds(2);
const base::TimeDelta kPlayDuration2 = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPlayDuration3 = base::TimeDelta::FromSeconds(8);
const base::TimeDelta kExpected =
kPlayDuration1 / 2 + kPlayDuration2 + 2 * kPlayDuration3;
clock_.SetPlaybackRate(0.5f);
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration1);
clock_.SetPlaybackRate(1.0f);
AdvanceSystemTime(kPlayDuration2);
clock_.SetPlaybackRate(2.0f);
AdvanceSystemTime(kPlayDuration3);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, Pause) {
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kPauseDuration = base::TimeDelta::FromSeconds(20);
const base::TimeDelta kExpectedFirstPause = kPlayDuration;
const base::TimeDelta kExpectedSecondPause = 2 * kPlayDuration;
// Play for 4 seconds.
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration);
// Pause for 20 seconds.
EXPECT_EQ(kExpectedFirstPause, clock_.Pause());
EXPECT_EQ(kExpectedFirstPause, clock_.Elapsed());
AdvanceSystemTime(kPauseDuration);
EXPECT_EQ(kExpectedFirstPause, clock_.Elapsed());
// Play again for 4 more seconds.
EXPECT_EQ(kExpectedFirstPause, clock_.Play());
AdvanceSystemTime(kPlayDuration);
EXPECT_EQ(kExpectedSecondPause, clock_.Pause());
EXPECT_EQ(kExpectedSecondPause, clock_.Elapsed());
}
TEST_F(ClockTest, SetTime_Paused) {
const base::TimeDelta kFirstTime = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kSecondTime = base::TimeDelta::FromSeconds(16);
clock_.SetTime(kFirstTime, clock_.Duration());
EXPECT_EQ(kFirstTime, clock_.Elapsed());
clock_.SetTime(kSecondTime, clock_.Duration());
EXPECT_EQ(kSecondTime, clock_.Elapsed());
}
TEST_F(ClockTest, SetTime_Playing) {
// We'll play for 4 seconds, then set the time to 12, then play for 4 more
// seconds.
const base::TimeDelta kZero;
const base::TimeDelta kPlayDuration = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kUpdatedTime = base::TimeDelta::FromSeconds(12);
const base::TimeDelta kExpected = kUpdatedTime + kPlayDuration;
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(kPlayDuration);
clock_.SetTime(kUpdatedTime, clock_.Duration());
AdvanceSystemTime(kPlayDuration);
EXPECT_EQ(kExpected, clock_.Elapsed());
}
TEST_F(ClockTest, CapAtMediaDuration_Paused) {
const base::TimeDelta kDuration =
base::TimeDelta::FromSeconds(kDurationInSeconds);
const base::TimeDelta kTimeOverDuration =
base::TimeDelta::FromSeconds(kDurationInSeconds + 4);
// Elapsed time should always be capped at the duration of the media.
clock_.SetTime(kTimeOverDuration, kTimeOverDuration);
EXPECT_EQ(kDuration, clock_.Elapsed());
}
TEST_F(ClockTest, CapAtMediaDuration_Playing) {
const base::TimeDelta kZero;
const base::TimeDelta kDuration =
base::TimeDelta::FromSeconds(kDurationInSeconds);
const base::TimeDelta kTimeOverDuration =
base::TimeDelta::FromSeconds(kDurationInSeconds + 4);
// Play for twice as long as the duration of the media.
EXPECT_EQ(kZero, clock_.Play());
AdvanceSystemTime(2 * kDuration);
EXPECT_EQ(kDuration, clock_.Elapsed());
// Manually set the time past the duration.
clock_.SetTime(kTimeOverDuration, kTimeOverDuration);
EXPECT_EQ(kDuration, clock_.Elapsed());
}
TEST_F(ClockTest, SetMaxTime) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeInterval = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kMaxTime = base::TimeDelta::FromSeconds(6);
EXPECT_EQ(kZero, clock_.Play());
clock_.SetMaxTime(kMaxTime);
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kTimeInterval, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime, clock_.Elapsed());
}
TEST_F(ClockTest, SetMaxTime_MultipleTimes) {
const base::TimeDelta kZero;
const base::TimeDelta kTimeInterval = base::TimeDelta::FromSeconds(4);
const base::TimeDelta kMaxTime1 = base::TimeDelta::FromSeconds(6);
const base::TimeDelta kMaxTime2 = base::TimeDelta::FromSeconds(12);
EXPECT_EQ(kZero, clock_.Play());
clock_.SetMaxTime(clock_.Duration());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kTimeInterval, clock_.Elapsed());
clock_.SetMaxTime(kMaxTime1);
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
clock_.SetMaxTime(kMaxTime2);
EXPECT_EQ(kMaxTime1, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime1 + kTimeInterval, clock_.Elapsed());
AdvanceSystemTime(kTimeInterval);
EXPECT_EQ(kMaxTime2, clock_.Elapsed());
}
} // namespace media
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