src/cc/animation/animation_unittest.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/animation/animation.h"
   6
   7 #include "cc/test/animation_test_common.h"
   8 #include "testing/gmock/include/gmock/gmock.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 namespace cc {
  12 namespace {
  13
  14 using base::TimeDelta;
  15
  16 static base::TimeTicks TicksFromSecondsF(double seconds) {
  17   return base::TimeTicks::FromInternalValue(seconds *
  18                                             base::Time::kMicrosecondsPerSecond);
  19 }
  20
  21 scoped_ptr<Animation> CreateAnimation(double iterations,
  22                                       double duration,
  23                                       double playback_rate) {
  24   scoped_ptr<Animation> to_return(
  25       Animation::Create(make_scoped_ptr(new FakeFloatAnimationCurve(duration)),
  26                         0,
  27                         1,
  28                         Animation::Opacity));
  29   to_return->set_iterations(iterations);
  30   to_return->set_playback_rate(playback_rate);
  31   return to_return.Pass();
  32 }
  33
  34 scoped_ptr<Animation> CreateAnimation(double iterations, double duration) {
  35   return CreateAnimation(iterations, duration, 1);
  36 }
  37
  38 scoped_ptr<Animation> CreateAnimation(double iterations) {
  39   return CreateAnimation(iterations, 1, 1);
  40 }
  41
  42 TEST(AnimationTest, TrimTimeZeroIterations) {
  43   scoped_ptr<Animation> anim(CreateAnimation(0));
  44   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
  45   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
  46   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  47 }
  48
  49 TEST(AnimationTest, TrimTimeOneIteration) {
  50   scoped_ptr<Animation> anim(CreateAnimation(1));
  51   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
  52   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
  53   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  54   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
  55 }
  56
  57 TEST(AnimationTest, TrimTimeOneHalfIteration) {
  58   scoped_ptr<Animation> anim(CreateAnimation(1.5));
  59   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
  60   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
  61   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
  62   EXPECT_EQ(0.9, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.9)));
  63   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  64   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
  65   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
  66 }
  67
  68 TEST(AnimationTest, TrimTimeInfiniteIterations) {
  69   scoped_ptr<Animation> anim(CreateAnimation(-1));
  70   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
  71   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
  72   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  73   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
  74 }
  75
  76 TEST(AnimationTest, TrimTimeReverse) {
  77   scoped_ptr<Animation> anim(CreateAnimation(-1));
  78   anim->set_direction(Animation::Reverse);
  79   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0)));
  80   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
  81   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
  82   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
  83   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  84   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
  85 }
  86
  87 TEST(AnimationTest, TrimTimeAlternateInfiniteIterations) {
  88   scoped_ptr<Animation> anim(CreateAnimation(-1));
  89   anim->set_direction(Animation::Alternate);
  90   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
  91   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
  92   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
  93   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
  94   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
  95   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
  96 }
  97
  98 TEST(AnimationTest, TrimTimeAlternateOneIteration) {
  99   scoped_ptr<Animation> anim(CreateAnimation(1));
 100   anim->set_direction(Animation::Alternate);
 101   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 102   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 103   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 104   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 105   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 106   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 107 }
 108
 109 TEST(AnimationTest, TrimTimeAlternateTwoIterations) {
 110   scoped_ptr<Animation> anim(CreateAnimation(2));
 111   anim->set_direction(Animation::Alternate);
 112   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 113   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 114   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 115   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 116   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 117   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 118   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 119   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 120   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 121 }
 122
 123 TEST(AnimationTest, TrimTimeAlternateTwoHalfIterations) {
 124   scoped_ptr<Animation> anim(CreateAnimation(2.5));
 125   anim->set_direction(Animation::Alternate);
 126   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 127   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 128   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 129   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 130   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 131   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 132   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 133   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 134   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 135   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.50)));
 136   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.75)));
 137 }
 138
 139 TEST(AnimationTest, TrimTimeAlternateReverseInfiniteIterations) {
 140   scoped_ptr<Animation> anim(CreateAnimation(-1));
 141   anim->set_direction(Animation::AlternateReverse);
 142   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 143   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 144   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 145   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 146   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 147   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 148 }
 149
 150 TEST(AnimationTest, TrimTimeAlternateReverseOneIteration) {
 151   scoped_ptr<Animation> anim(CreateAnimation(1));
 152   anim->set_direction(Animation::AlternateReverse);
 153   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 154   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 155   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 156   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 157   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 158   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 159 }
 160
 161 TEST(AnimationTest, TrimTimeAlternateReverseTwoIterations) {
 162   scoped_ptr<Animation> anim(CreateAnimation(2));
 163   anim->set_direction(Animation::AlternateReverse);
 164   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 165   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 166   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 167   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 168   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 169   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 170   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 171   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 172   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 173 }
 174
 175 TEST(AnimationTest, TrimTimeStartTime) {
 176   scoped_ptr<Animation> anim(CreateAnimation(1));
 177   anim->set_start_time(TicksFromSecondsF(4));
 178   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 179   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.0)));
 180   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 181   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(5.0)));
 182   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(6.0)));
 183 }
 184
 185 TEST(AnimationTest, TrimTimeStartTimeReverse) {
 186   scoped_ptr<Animation> anim(CreateAnimation(1));
 187   anim->set_start_time(TicksFromSecondsF(4));
 188   anim->set_direction(Animation::Reverse);
 189   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 190   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.0)));
 191   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 192   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(5.0)));
 193   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(6.0)));
 194 }
 195
 196 TEST(AnimationTest, TrimTimeTimeOffset) {
 197   scoped_ptr<Animation> anim(CreateAnimation(1));
 198   anim->set_time_offset(TimeDelta::FromMilliseconds(4000));
 199   anim->set_start_time(TicksFromSecondsF(4));
 200   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 201   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 202   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 203   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 204 }
 205
 206 TEST(AnimationTest, TrimTimeTimeOffsetReverse) {
 207   scoped_ptr<Animation> anim(CreateAnimation(1));
 208   anim->set_time_offset(TimeDelta::FromMilliseconds(4000));
 209   anim->set_start_time(TicksFromSecondsF(4));
 210   anim->set_direction(Animation::Reverse);
 211   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 212   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 213   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 214   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 215 }
 216
 217 TEST(AnimationTest, TrimTimeNegativeTimeOffset) {
 218   scoped_ptr<Animation> anim(CreateAnimation(1));
 219   anim->set_time_offset(TimeDelta::FromMilliseconds(-4000));
 220
 221   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 222   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.0)));
 223   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 224   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(5.0)));
 225 }
 226
 227 TEST(AnimationTest, TrimTimeNegativeTimeOffsetReverse) {
 228   scoped_ptr<Animation> anim(CreateAnimation(1));
 229   anim->set_time_offset(TimeDelta::FromMilliseconds(-4000));
 230   anim->set_direction(Animation::Reverse);
 231
 232   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 233   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.0)));
 234   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 235   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(5.0)));
 236 }
 237
 238 TEST(AnimationTest, TrimTimePauseResume) {
 239   scoped_ptr<Animation> anim(CreateAnimation(1));
 240   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 241   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 242   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 243   anim->SetRunState(Animation::Paused, TicksFromSecondsF(0.5));
 244   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 245   anim->SetRunState(Animation::Running, TicksFromSecondsF(1024.0));
 246   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 247   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.5)));
 248 }
 249
 250 TEST(AnimationTest, TrimTimePauseResumeReverse) {
 251   scoped_ptr<Animation> anim(CreateAnimation(1));
 252   anim->set_direction(Animation::Reverse);
 253   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 254   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 255   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 256   anim->SetRunState(Animation::Paused, TicksFromSecondsF(0.25));
 257   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 258   anim->SetRunState(Animation::Running, TicksFromSecondsF(1024.0));
 259   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 260   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.75)));
 261 }
 262
 263 TEST(AnimationTest, TrimTimeSuspendResume) {
 264   scoped_ptr<Animation> anim(CreateAnimation(1));
 265   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 266   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 267   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 268   anim->Suspend(TicksFromSecondsF(0.5));
 269   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 270   anim->Resume(TicksFromSecondsF(1024));
 271   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 272   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.5)));
 273 }
 274
 275 TEST(AnimationTest, TrimTimeSuspendResumeReverse) {
 276   scoped_ptr<Animation> anim(CreateAnimation(1));
 277   anim->set_direction(Animation::Reverse);
 278   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 279   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 280   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 281   anim->Suspend(TicksFromSecondsF(0.75));
 282   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 283   anim->Resume(TicksFromSecondsF(1024));
 284   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.0)));
 285   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1024.25)));
 286 }
 287
 288 TEST(AnimationTest, TrimTimeZeroDuration) {
 289   scoped_ptr<Animation> anim(CreateAnimation(0, 0));
 290   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 291   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 292   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 293   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 294 }
 295
 296 TEST(AnimationTest, TrimTimeStarting) {
 297   scoped_ptr<Animation> anim(CreateAnimation(1, 5.0));
 298   anim->SetRunState(Animation::Starting, TicksFromSecondsF(0.0));
 299   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 300   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 301   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 302   anim->set_time_offset(TimeDelta::FromMilliseconds(2000));
 303   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 304   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 305   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 306   anim->set_start_time(TicksFromSecondsF(1.0));
 307   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 308   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 309   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 310   EXPECT_EQ(3.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 311 }
 312
 313 TEST(AnimationTest, TrimTimeNeedsSynchronizedStartTime) {
 314   scoped_ptr<Animation> anim(CreateAnimation(1, 5.0));
 315   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 316   anim->set_needs_synchronized_start_time(true);
 317   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 318   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 319   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 320   anim->set_time_offset(TimeDelta::FromMilliseconds(2000));
 321   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 322   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 323   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 324   anim->set_start_time(TicksFromSecondsF(1.0));
 325   anim->set_needs_synchronized_start_time(false);
 326   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 327   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 328   EXPECT_EQ(3.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 329 }
 330
 331 TEST(AnimationTest, IsFinishedAtZeroIterations) {
 332   scoped_ptr<Animation> anim(CreateAnimation(0));
 333   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 334   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(-1.0)));
 335   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 336   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(1.0)));
 337 }
 338
 339 TEST(AnimationTest, IsFinishedAtOneIteration) {
 340   scoped_ptr<Animation> anim(CreateAnimation(1));
 341   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 342   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(-1.0)));
 343   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 344   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(1.0)));
 345   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(2.0)));
 346 }
 347
 348 TEST(AnimationTest, IsFinishedAtInfiniteIterations) {
 349   scoped_ptr<Animation> anim(CreateAnimation(-1));
 350   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 351   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 352   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.5)));
 353   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(1.0)));
 354   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(1.5)));
 355 }
 356
 357 TEST(AnimationTest, IsFinishedNegativeTimeOffset) {
 358   scoped_ptr<Animation> anim(CreateAnimation(1));
 359   anim->set_time_offset(TimeDelta::FromMilliseconds(-500));
 360   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 361
 362   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(-1.0)));
 363   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 364   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.5)));
 365   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(1.0)));
 366   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(1.5)));
 367   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(2.0)));
 368   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(2.5)));
 369 }
 370
 371 TEST(AnimationTest, IsFinishedPositiveTimeOffset) {
 372   scoped_ptr<Animation> anim(CreateAnimation(1));
 373   anim->set_time_offset(TimeDelta::FromMilliseconds(500));
 374   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 375
 376   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(-1.0)));
 377   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 378   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(0.5)));
 379   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(1.0)));
 380 }
 381
 382 TEST(AnimationTest, IsFinishedAtNotRunning) {
 383   scoped_ptr<Animation> anim(CreateAnimation(0));
 384   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 385   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 386   anim->SetRunState(Animation::Paused, TicksFromSecondsF(0.0));
 387   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 388   anim->SetRunState(Animation::WaitingForTargetAvailability,
 389                     TicksFromSecondsF(0.0));
 390   EXPECT_FALSE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 391   anim->SetRunState(Animation::Finished, TicksFromSecondsF(0.0));
 392   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 393   anim->SetRunState(Animation::Aborted, TicksFromSecondsF(0.0));
 394   EXPECT_TRUE(anim->IsFinishedAt(TicksFromSecondsF(0.0)));
 395 }
 396
 397 TEST(AnimationTest, IsFinished) {
 398   scoped_ptr<Animation> anim(CreateAnimation(1));
 399   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 400   EXPECT_FALSE(anim->is_finished());
 401   anim->SetRunState(Animation::Paused, TicksFromSecondsF(0.0));
 402   EXPECT_FALSE(anim->is_finished());
 403   anim->SetRunState(Animation::WaitingForTargetAvailability,
 404                     TicksFromSecondsF(0.0));
 405   EXPECT_FALSE(anim->is_finished());
 406   anim->SetRunState(Animation::Finished, TicksFromSecondsF(0.0));
 407   EXPECT_TRUE(anim->is_finished());
 408   anim->SetRunState(Animation::Aborted, TicksFromSecondsF(0.0));
 409   EXPECT_TRUE(anim->is_finished());
 410 }
 411
 412 TEST(AnimationTest, IsFinishedNeedsSynchronizedStartTime) {
 413   scoped_ptr<Animation> anim(CreateAnimation(1));
 414   anim->SetRunState(Animation::Running, TicksFromSecondsF(2.0));
 415   EXPECT_FALSE(anim->is_finished());
 416   anim->SetRunState(Animation::Paused, TicksFromSecondsF(2.0));
 417   EXPECT_FALSE(anim->is_finished());
 418   anim->SetRunState(Animation::WaitingForTargetAvailability,
 419                     TicksFromSecondsF(2.0));
 420   EXPECT_FALSE(anim->is_finished());
 421   anim->SetRunState(Animation::Finished, TicksFromSecondsF(0.0));
 422   EXPECT_TRUE(anim->is_finished());
 423   anim->SetRunState(Animation::Aborted, TicksFromSecondsF(0.0));
 424   EXPECT_TRUE(anim->is_finished());
 425 }
 426
 427 TEST(AnimationTest, RunStateChangesIgnoredWhileSuspended) {
 428   scoped_ptr<Animation> anim(CreateAnimation(1));
 429   anim->Suspend(TicksFromSecondsF(0));
 430   EXPECT_EQ(Animation::Paused, anim->run_state());
 431   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 432   EXPECT_EQ(Animation::Paused, anim->run_state());
 433   anim->Resume(TicksFromSecondsF(0));
 434   anim->SetRunState(Animation::Running, TicksFromSecondsF(0.0));
 435   EXPECT_EQ(Animation::Running, anim->run_state());
 436 }
 437
 438 TEST(AnimationTest, TrimTimePlaybackNormal) {
 439   scoped_ptr<Animation> anim(CreateAnimation(1, 1, 1));
 440   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 441   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 442   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 443   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 444   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 445 }
 446
 447 TEST(AnimationTest, TrimTimePlaybackSlow) {
 448   scoped_ptr<Animation> anim(CreateAnimation(1, 1, 0.5));
 449   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 450   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 451   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 452   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 453   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 454   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.0)));
 455 }
 456
 457 TEST(AnimationTest, TrimTimePlaybackFast) {
 458   scoped_ptr<Animation> anim(CreateAnimation(1, 4, 2));
 459   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 460   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 461   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 462   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 463   EXPECT_EQ(3, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 464   EXPECT_EQ(4, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 465   EXPECT_EQ(4, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 466 }
 467
 468 TEST(AnimationTest, TrimTimePlaybackNormalReverse) {
 469   scoped_ptr<Animation> anim(CreateAnimation(1, 2, -1));
 470   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 471   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0)));
 472   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 473   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 474   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 475   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 476   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 477 }
 478
 479 TEST(AnimationTest, TrimTimePlaybackSlowReverse) {
 480   scoped_ptr<Animation> anim(CreateAnimation(1, 2, -0.5));
 481   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 482   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0)));
 483   EXPECT_EQ(1.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 484   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 485   EXPECT_EQ(1.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 486   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 487   EXPECT_EQ(0.75, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 488   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3)));
 489   EXPECT_EQ(0.25, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.5)));
 490   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4)));
 491   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 492 }
 493
 494 TEST(AnimationTest, TrimTimePlaybackFastReverse) {
 495   scoped_ptr<Animation> anim(CreateAnimation(1, 2, -2));
 496   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 497   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0)));
 498   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 499   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 500   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 501   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 502   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 503 }
 504
 505 TEST(AnimationTest, TrimTimePlaybackFastInfiniteIterations) {
 506   scoped_ptr<Animation> anim(CreateAnimation(-1, 4, 4));
 507   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 508   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 509   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 510   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 511   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1000.0)));
 512   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1000.5)));
 513 }
 514
 515 TEST(AnimationTest, TrimTimePlaybackNormalDoubleReverse) {
 516   scoped_ptr<Animation> anim(CreateAnimation(1, 1, -1));
 517   anim->set_direction(Animation::Reverse);
 518   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 519   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 520   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 521   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 522   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 523 }
 524
 525 TEST(AnimationTest, TrimTimePlaybackFastDoubleReverse) {
 526   scoped_ptr<Animation> anim(CreateAnimation(1, 4, -2));
 527   anim->set_direction(Animation::Reverse);
 528   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 529   EXPECT_EQ(0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 530   EXPECT_EQ(1, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 531   EXPECT_EQ(2, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 532   EXPECT_EQ(3, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 533   EXPECT_EQ(4, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 534   EXPECT_EQ(4, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 535 }
 536
 537 TEST(AnimationTest, TrimTimeAlternateTwoIterationsPlaybackFast) {
 538   scoped_ptr<Animation> anim(CreateAnimation(2, 2, 2));
 539   anim->set_direction(Animation::Alternate);
 540   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 541   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 542   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 543   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 544   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 545   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 546   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 547   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 548   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 549   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 550 }
 551
 552 TEST(AnimationTest, TrimTimeAlternateTwoIterationsPlaybackFastReverse) {
 553   scoped_ptr<Animation> anim(CreateAnimation(2, 2, 2));
 554   anim->set_direction(Animation::AlternateReverse);
 555   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 556   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 557   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 558   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 559   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 560   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 561   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 562   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 563   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 564   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 565   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 566 }
 567
 568 TEST(AnimationTest, TrimTimeAlternateTwoIterationsPlaybackFastDoubleReverse) {
 569   scoped_ptr<Animation> anim(CreateAnimation(2, 2, -2));
 570   anim->set_direction(Animation::AlternateReverse);
 571   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 572   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 573   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 574   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 575   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 576   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 577   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 578   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 579   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 580   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 581 }
 582
 583 TEST(AnimationTest,
 584      TrimTimeAlternateReverseThreeIterationsPlaybackFastAlternateReverse) {
 585   scoped_ptr<Animation> anim(CreateAnimation(3, 2, -2));
 586   anim->set_direction(Animation::AlternateReverse);
 587   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 588   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.25)));
 589   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 590   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.75)));
 591   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 592   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.25)));
 593   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 594   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.75)));
 595   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 596   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.25)));
 597   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 598   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.75)));
 599   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.0)));
 600   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.25)));
 601 }
 602
 603 TEST(AnimationTest,
 604      TrimTimeAlternateReverseTwoIterationsPlaybackNormalAlternate) {
 605   scoped_ptr<Animation> anim(CreateAnimation(2, 2, -1));
 606   anim->set_direction(Animation::Alternate);
 607   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 608   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 609   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 610   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 611   EXPECT_EQ(2.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 612   EXPECT_EQ(1.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 613   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.0)));
 614   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.5)));
 615   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.0)));
 616   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(4.5)));
 617 }
 618
 619 TEST(AnimationTest, TrimTimeIterationStart) {
 620   scoped_ptr<Animation> anim(CreateAnimation(2, 1, 1));
 621   anim->set_iteration_start(0.5);
 622   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 623   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 624   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 625   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 626   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 627   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 628   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 629 }
 630
 631 TEST(AnimationTest, TrimTimeIterationStartAlternate) {
 632   scoped_ptr<Animation> anim(CreateAnimation(2, 1, 1));
 633   anim->set_direction(Animation::Alternate);
 634   anim->set_iteration_start(0.3);
 635   EXPECT_EQ(0.3, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 636   EXPECT_EQ(0.3, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 637   EXPECT_EQ(0.8, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 638   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.7)));
 639   EXPECT_EQ(0.7, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 640   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.2)));
 641   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.7)));
 642 }
 643
 644 TEST(AnimationTest, TrimTimeIterationStartAlternateThreeIterations) {
 645   scoped_ptr<Animation> anim(CreateAnimation(3, 1, 1));
 646   anim->set_direction(Animation::Alternate);
 647   anim->set_iteration_start(1);
 648   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(-1.0)));
 649   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 650   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.5)));
 651   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 652   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.5)));
 653   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 654   EXPECT_EQ(0.5, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.5)));
 655   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.0)));
 656   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.5)));
 657 }
 658
 659 TEST(AnimationTest,
 660      TrimTimeIterationStartAlternateThreeIterationsPlaybackReverse) {
 661   scoped_ptr<Animation> anim(CreateAnimation(3, 1, -1));
 662   anim->set_direction(Animation::Alternate);
 663   anim->set_iteration_start(1);
 664   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(0.0)));
 665   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(1.0)));
 666   EXPECT_EQ(0.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(2.0)));
 667   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.0)));
 668   EXPECT_EQ(1.0, anim->TrimTimeToCurrentIteration(TicksFromSecondsF(3.5)));
 669 }
 670
 671 TEST(AnimationTest, InEffectFillMode) {
 672   scoped_ptr<Animation> anim(CreateAnimation(1));
 673   anim->set_fill_mode(Animation::FillModeNone);
 674   EXPECT_FALSE(anim->InEffect(TicksFromSecondsF(-1.0)));
 675   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 676   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 677
 678   anim->set_fill_mode(Animation::FillModeForwards);
 679   EXPECT_FALSE(anim->InEffect(TicksFromSecondsF(-1.0)));
 680   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 681   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 682
 683   anim->set_fill_mode(Animation::FillModeBackwards);
 684   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(-1.0)));
 685   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 686   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 687
 688   anim->set_fill_mode(Animation::FillModeBoth);
 689   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(-1.0)));
 690   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 691   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 692 }
 693
 694 TEST(AnimationTest, InEffectFillModePlayback) {
 695   scoped_ptr<Animation> anim(CreateAnimation(1, 1, -1));
 696   anim->set_fill_mode(Animation::FillModeNone);
 697   EXPECT_FALSE(anim->InEffect(TicksFromSecondsF(-1.0)));
 698   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 699   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 700
 701   anim->set_fill_mode(Animation::FillModeForwards);
 702   EXPECT_FALSE(anim->InEffect(TicksFromSecondsF(-1.0)));
 703   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 704   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 705
 706   anim->set_fill_mode(Animation::FillModeBackwards);
 707   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(-1.0)));
 708   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 709   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 710
 711   anim->set_fill_mode(Animation::FillModeBoth);
 712   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(-1.0)));
 713   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(0.0)));
 714   EXPECT_TRUE(anim->InEffect(TicksFromSecondsF(1.0)));
 715 }
 716
 717 }  // namespace
 718 }  // namespace cc