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/*
* Copyright (c) 2013, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "core/animation/AnimationClock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
class AnimationAnimationClockTest : public ::testing::Test {
public:
AnimationAnimationClockTest() : animationClock(mockTimeFunction) {}
protected:
void SetUp() override {
mockTime = 0;
animationClock.resetTimeForTesting();
}
static double mockTimeFunction() { return mockTime; }
static double mockTime;
AnimationClock animationClock;
};
double AnimationAnimationClockTest::mockTime;
TEST_F(AnimationAnimationClockTest, TimeIsGreaterThanZeroForUnitTests) {
AnimationClock clock;
// unit tests outside core/animation shouldn't need to do anything to get
// a non-zero currentTime().
EXPECT_GT(clock.currentTime(), 0);
}
TEST_F(AnimationAnimationClockTest, TimeDoesNotChange) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
EXPECT_EQ(100, animationClock.currentTime());
}
TEST_F(AnimationAnimationClockTest, TimeAdvancesWhenUpdated) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
animationClock.updateTime(200);
EXPECT_EQ(200, animationClock.currentTime());
}
TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTime) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
mockTime = 150;
AnimationClock::notifyTaskStart();
EXPECT_GE(animationClock.currentTime(), mockTime);
}
TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTimeOnlyWhenRequired) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
AnimationClock::notifyTaskStart();
animationClock.updateTime(125);
EXPECT_EQ(125, animationClock.currentTime());
}
TEST_F(AnimationAnimationClockTest, UpdateTimeIsMonotonic) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
// Update can't go backwards.
animationClock.updateTime(50);
EXPECT_EQ(100, animationClock.currentTime());
mockTime = 50;
AnimationClock::notifyTaskStart();
EXPECT_EQ(100, animationClock.currentTime());
mockTime = 150;
AnimationClock::notifyTaskStart();
EXPECT_GE(animationClock.currentTime(), mockTime);
// Update can't go backwards after advance to estimate.
animationClock.updateTime(100);
EXPECT_GE(animationClock.currentTime(), mockTime);
}
TEST_F(AnimationAnimationClockTest, CurrentTimeUpdatesTask) {
animationClock.updateTime(100);
EXPECT_EQ(100, animationClock.currentTime());
mockTime = 100;
AnimationClock::notifyTaskStart();
EXPECT_EQ(100, animationClock.currentTime());
mockTime = 150;
EXPECT_EQ(100, animationClock.currentTime());
}
} // namespace blink
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