1/* 2 * Copyright (c) 2013, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "core/animation/AnimationClock.h" 33 34#include "wtf/OwnPtr.h" 35#include <gtest/gtest.h> 36 37using namespace blink; 38 39namespace { 40 41class AnimationAnimationClockTest : public ::testing::Test { 42public: 43 AnimationAnimationClockTest() 44 : animationClock(mockTimeFunction) 45 { } 46protected: 47 virtual void SetUp() 48 { 49 mockTime = 0; 50 animationClock.resetTimeForTesting(); 51 } 52 53 static double mockTimeFunction() 54 { 55 return mockTime; 56 } 57 58 static double mockTime; 59 AnimationClock animationClock; 60}; 61 62double AnimationAnimationClockTest::mockTime; 63 64TEST_F(AnimationAnimationClockTest, TimeIsGreaterThanZeroForUnitTests) 65{ 66 AnimationClock clock; 67 // unit tests outside core/animation shouldn't need to do anything to get 68 // a non-zero currentTime(). 69 EXPECT_GT(clock.currentTime(), 0); 70} 71 72TEST_F(AnimationAnimationClockTest, TimeDoesNotChange) 73{ 74 animationClock.updateTime(100); 75 EXPECT_EQ(100, animationClock.currentTime()); 76 EXPECT_EQ(100, animationClock.currentTime()); 77} 78 79TEST_F(AnimationAnimationClockTest, TimeAdvancesWhenUpdated) 80{ 81 animationClock.updateTime(100); 82 EXPECT_EQ(100, animationClock.currentTime()); 83 84 animationClock.updateTime(200); 85 EXPECT_EQ(200, animationClock.currentTime()); 86} 87 88TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTime) 89{ 90 animationClock.updateTime(100); 91 EXPECT_EQ(100, animationClock.currentTime()); 92 93 mockTime = 150; 94 AnimationClock::notifyTaskStart(); 95 EXPECT_GE(animationClock.currentTime(), mockTime); 96} 97 98TEST_F(AnimationAnimationClockTest, TimeAdvancesToTaskTimeOnlyWhenRequired) 99{ 100 animationClock.updateTime(100); 101 EXPECT_EQ(100, animationClock.currentTime()); 102 103 AnimationClock::notifyTaskStart(); 104 animationClock.updateTime(125); 105 EXPECT_EQ(125, animationClock.currentTime()); 106} 107 108TEST_F(AnimationAnimationClockTest, UpdateTimeIsMonotonic) 109{ 110 animationClock.updateTime(100); 111 EXPECT_EQ(100, animationClock.currentTime()); 112 113 // Update can't go backwards. 114 animationClock.updateTime(50); 115 EXPECT_EQ(100, animationClock.currentTime()); 116 117 mockTime = 50; 118 AnimationClock::notifyTaskStart(); 119 EXPECT_EQ(100, animationClock.currentTime()); 120 121 mockTime = 150; 122 AnimationClock::notifyTaskStart(); 123 EXPECT_GE(animationClock.currentTime(), mockTime); 124 125 // Update can't go backwards after advance to estimate. 126 animationClock.updateTime(100); 127 EXPECT_GE(animationClock.currentTime(), mockTime); 128} 129 130TEST_F(AnimationAnimationClockTest, CurrentTimeUpdatesTask) 131{ 132 animationClock.updateTime(100); 133 EXPECT_EQ(100, animationClock.currentTime()); 134 135 mockTime = 100; 136 AnimationClock::notifyTaskStart(); 137 EXPECT_EQ(100, animationClock.currentTime()); 138 139 mockTime = 150; 140 EXPECT_EQ(100, animationClock.currentTime()); 141} 142 143} 144