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// 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/test/simple_test_tick_clock.h"
#include "media/base/wall_clock_time_source.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
class WallClockTimeSourceTest : public testing::Test {
public:
WallClockTimeSourceTest() : tick_clock_(new base::SimpleTestTickClock()) {
time_source_.SetTickClockForTesting(
scoped_ptr<base::TickClock>(tick_clock_));
}
virtual ~WallClockTimeSourceTest() {}
void AdvanceTimeInSeconds(int seconds) {
tick_clock_->Advance(base::TimeDelta::FromSeconds(seconds));
}
int CurrentMediaTimeInSeconds() {
return time_source_.CurrentMediaTime().InSeconds();
}
void SetMediaTimeInSeconds(int seconds) {
return time_source_.SetMediaTime(base::TimeDelta::FromSeconds(seconds));
}
WallClockTimeSource time_source_;
private:
base::SimpleTestTickClock* tick_clock_; // Owned by |time_source_|.
DISALLOW_COPY_AND_ASSIGN(WallClockTimeSourceTest);
};
TEST_F(WallClockTimeSourceTest, InitialTimeIsZero) {
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
}
TEST_F(WallClockTimeSourceTest, InitialTimeIsNotTicking) {
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
AdvanceTimeInSeconds(100);
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
}
TEST_F(WallClockTimeSourceTest, InitialPlaybackRateIsOne) {
time_source_.StartTicking();
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
AdvanceTimeInSeconds(100);
EXPECT_EQ(100, CurrentMediaTimeInSeconds());
}
TEST_F(WallClockTimeSourceTest, SetMediaTime) {
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
SetMediaTimeInSeconds(10);
EXPECT_EQ(10, CurrentMediaTimeInSeconds());
}
TEST_F(WallClockTimeSourceTest, SetPlaybackRate) {
time_source_.StartTicking();
time_source_.SetPlaybackRate(0.5);
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
AdvanceTimeInSeconds(10);
EXPECT_EQ(5, CurrentMediaTimeInSeconds());
time_source_.SetPlaybackRate(2);
EXPECT_EQ(5, CurrentMediaTimeInSeconds());
AdvanceTimeInSeconds(10);
EXPECT_EQ(25, CurrentMediaTimeInSeconds());
}
TEST_F(WallClockTimeSourceTest, StopTicking) {
time_source_.StartTicking();
EXPECT_EQ(0, CurrentMediaTimeInSeconds());
AdvanceTimeInSeconds(10);
EXPECT_EQ(10, CurrentMediaTimeInSeconds());
time_source_.StopTicking();
AdvanceTimeInSeconds(10);
EXPECT_EQ(10, CurrentMediaTimeInSeconds());
}
} // namespace media
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