cc/trees/layer_tree_host_unittest_animation.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/trees/layer_tree_host.h"
   6
   7 #include "cc/animation/animation_curve.h"
   8 #include "cc/animation/layer_animation_controller.h"
   9 #include "cc/animation/scroll_offset_animation_curve.h"
  10 #include "cc/animation/timing_function.h"
  11 #include "cc/layers/layer.h"
  12 #include "cc/layers/layer_impl.h"
  13 #include "cc/test/animation_test_common.h"
  14 #include "cc/test/fake_content_layer.h"
  15 #include "cc/test/fake_content_layer_client.h"
  16 #include "cc/test/layer_tree_test.h"
  17 #include "cc/trees/layer_tree_impl.h"
  18
  19 namespace cc {
  20 namespace {
  21
  22 class LayerTreeHostAnimationTest : public LayerTreeTest {
  23  public:
  24   virtual void SetupTree() OVERRIDE {
  25     LayerTreeTest::SetupTree();
  26     layer_tree_host()->root_layer()->set_layer_animation_delegate(this);
  27   }
  28 };
  29
  30 // Makes sure that SetNeedsAnimate does not cause the CommitRequested() state to
  31 // be set.
  32 class LayerTreeHostAnimationTestSetNeedsAnimateShouldNotSetCommitRequested
  33     : public LayerTreeHostAnimationTest {
  34  public:
  35   LayerTreeHostAnimationTestSetNeedsAnimateShouldNotSetCommitRequested()
  36       : num_commits_(0) {}
  37
  38   virtual void BeginTest() OVERRIDE {
  39     PostSetNeedsCommitToMainThread();
  40   }
  41
  42   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
  43     // We skip the first commit because its the commit that populates the
  44     // impl thread with a tree. After the second commit, the test is done.
  45     if (num_commits_ != 1)
  46       return;
  47
  48     layer_tree_host()->SetNeedsAnimate();
  49     // Right now, CommitRequested is going to be true, because during
  50     // BeginFrame, we force CommitRequested to true to prevent requests from
  51     // hitting the impl thread. But, when the next DidCommit happens, we should
  52     // verify that CommitRequested has gone back to false.
  53   }
  54
  55   virtual void DidCommit() OVERRIDE {
  56     if (!num_commits_) {
  57       EXPECT_FALSE(layer_tree_host()->CommitRequested());
  58       layer_tree_host()->SetNeedsAnimate();
  59       EXPECT_FALSE(layer_tree_host()->CommitRequested());
  60     }
  61
  62     // Verifies that the SetNeedsAnimate we made in ::Animate did not
  63     // trigger CommitRequested.
  64     EXPECT_FALSE(layer_tree_host()->CommitRequested());
  65     EndTest();
  66     num_commits_++;
  67   }
  68
  69   virtual void AfterTest() OVERRIDE {}
  70
  71  private:
  72   int num_commits_;
  73 };
  74
  75 MULTI_THREAD_TEST_F(
  76     LayerTreeHostAnimationTestSetNeedsAnimateShouldNotSetCommitRequested);
  77
  78 // Trigger a frame with SetNeedsCommit. Then, inside the resulting animate
  79 // callback, request another frame using SetNeedsAnimate. End the test when
  80 // animate gets called yet-again, indicating that the proxy is correctly
  81 // handling the case where SetNeedsAnimate() is called inside the BeginFrame
  82 // flow.
  83 class LayerTreeHostAnimationTestSetNeedsAnimateInsideAnimationCallback
  84     : public LayerTreeHostAnimationTest {
  85  public:
  86   LayerTreeHostAnimationTestSetNeedsAnimateInsideAnimationCallback()
  87       : num_begin_frames_(0) {}
  88
  89   virtual void BeginTest() OVERRIDE {
  90     PostSetNeedsCommitToMainThread();
  91   }
  92
  93   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
  94     if (!num_begin_frames_) {
  95       layer_tree_host()->SetNeedsAnimate();
  96       num_begin_frames_++;
  97       return;
  98     }
  99     EndTest();
 100   }
 101
 102   virtual void AfterTest() OVERRIDE {}
 103
 104  private:
 105   int num_begin_frames_;
 106 };
 107
 108 MULTI_THREAD_TEST_F(
 109     LayerTreeHostAnimationTestSetNeedsAnimateInsideAnimationCallback);
 110
 111 // Add a layer animation and confirm that
 112 // LayerTreeHostImpl::updateAnimationState does get called and continues to
 113 // get called.
 114 class LayerTreeHostAnimationTestAddAnimation
 115     : public LayerTreeHostAnimationTest {
 116  public:
 117   LayerTreeHostAnimationTestAddAnimation()
 118       : num_begin_frames_(0), received_animation_started_notification_(false) {}
 119
 120   virtual void BeginTest() OVERRIDE {
 121     PostAddInstantAnimationToMainThread(layer_tree_host()->root_layer());
 122   }
 123
 124   virtual void UpdateAnimationState(
 125       LayerTreeHostImpl* host_impl,
 126       bool has_unfinished_animation) OVERRIDE {
 127     if (!num_begin_frames_) {
 128       // The animation had zero duration so LayerTreeHostImpl should no
 129       // longer need to animate its layers.
 130       EXPECT_FALSE(has_unfinished_animation);
 131       num_begin_frames_++;
 132       return;
 133     }
 134
 135     if (received_animation_started_notification_) {
 136       EXPECT_LT(base::TimeTicks(), start_time_);
 137
 138       LayerAnimationController* controller_impl =
 139           host_impl->active_tree()->root_layer()->layer_animation_controller();
 140       Animation* animation_impl =
 141           controller_impl->GetAnimation(Animation::Opacity);
 142       if (animation_impl)
 143         controller_impl->RemoveAnimation(animation_impl->id());
 144
 145       EndTest();
 146     }
 147   }
 148
 149   virtual void NotifyAnimationStarted(
 150       base::TimeTicks monotonic_time,
 151       Animation::TargetProperty target_property) OVERRIDE {
 152     received_animation_started_notification_ = true;
 153     start_time_ = monotonic_time;
 154     if (num_begin_frames_) {
 155       EXPECT_LT(base::TimeTicks(), start_time_);
 156
 157       LayerAnimationController* controller =
 158           layer_tree_host()->root_layer()->layer_animation_controller();
 159       Animation* animation =
 160           controller->GetAnimation(Animation::Opacity);
 161       if (animation)
 162         controller->RemoveAnimation(animation->id());
 163
 164       EndTest();
 165     }
 166   }
 167
 168   virtual void AfterTest() OVERRIDE {}
 169
 170  private:
 171   int num_begin_frames_;
 172   bool received_animation_started_notification_;
 173   base::TimeTicks start_time_;
 174 };
 175
 176 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestAddAnimation);
 177
 178 // Add a layer animation to a layer, but continually fail to draw. Confirm that
 179 // after a while, we do eventually force a draw.
 180 class LayerTreeHostAnimationTestCheckerboardDoesNotStarveDraws
 181     : public LayerTreeHostAnimationTest {
 182  public:
 183   LayerTreeHostAnimationTestCheckerboardDoesNotStarveDraws()
 184       : started_animating_(false) {}
 185
 186   virtual void BeginTest() OVERRIDE {
 187     PostAddAnimationToMainThread(layer_tree_host()->root_layer());
 188   }
 189
 190   virtual void AnimateLayers(
 191       LayerTreeHostImpl* host_impl,
 192       base::TimeTicks monotonic_time) OVERRIDE {
 193     started_animating_ = true;
 194   }
 195
 196   virtual void DrawLayersOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 197     if (started_animating_)
 198       EndTest();
 199   }
 200
 201   virtual DrawResult PrepareToDrawOnThread(
 202       LayerTreeHostImpl* host_impl,
 203       LayerTreeHostImpl::FrameData* frame,
 204       DrawResult draw_result) OVERRIDE {
 205     return DRAW_ABORTED_CHECKERBOARD_ANIMATIONS;
 206   }
 207
 208   virtual void AfterTest() OVERRIDE { }
 209
 210  private:
 211   bool started_animating_;
 212 };
 213
 214 // Starvation can only be an issue with the MT compositor.
 215 MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestCheckerboardDoesNotStarveDraws);
 216
 217 // Ensures that animations eventually get deleted.
 218 class LayerTreeHostAnimationTestAnimationsGetDeleted
 219     : public LayerTreeHostAnimationTest {
 220  public:
 221   LayerTreeHostAnimationTestAnimationsGetDeleted()
 222       : started_animating_(false) {}
 223
 224   virtual void BeginTest() OVERRIDE {
 225     PostAddAnimationToMainThread(layer_tree_host()->root_layer());
 226   }
 227
 228   virtual void AnimateLayers(
 229       LayerTreeHostImpl* host_impl,
 230       base::TimeTicks monotonic_time) OVERRIDE {
 231     bool have_animations = !host_impl->animation_registrar()->
 232         active_animation_controllers().empty();
 233     if (!started_animating_ && have_animations) {
 234       started_animating_ = true;
 235       return;
 236     }
 237
 238     if (started_animating_ && !have_animations)
 239       EndTest();
 240   }
 241
 242   virtual void NotifyAnimationFinished(
 243       base::TimeTicks monotonic_time,
 244       Animation::TargetProperty target_property) OVERRIDE {
 245     // Animations on the impl-side controller only get deleted during a commit,
 246     // so we need to schedule a commit.
 247     layer_tree_host()->SetNeedsCommit();
 248   }
 249
 250   virtual void AfterTest() OVERRIDE {}
 251
 252  private:
 253   bool started_animating_;
 254 };
 255
 256 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestAnimationsGetDeleted);
 257
 258 // Ensures that animations continue to be ticked when we are backgrounded.
 259 class LayerTreeHostAnimationTestTickAnimationWhileBackgrounded
 260     : public LayerTreeHostAnimationTest {
 261  public:
 262   LayerTreeHostAnimationTestTickAnimationWhileBackgrounded()
 263       : num_begin_frames_(0) {}
 264
 265   virtual void BeginTest() OVERRIDE {
 266     PostAddLongAnimationToMainThread(layer_tree_host()->root_layer());
 267   }
 268
 269   // Use WillAnimateLayers to set visible false before the animation runs and
 270   // causes a commit, so we block the second visible animate in single-thread
 271   // mode.
 272   virtual void WillAnimateLayers(
 273       LayerTreeHostImpl* host_impl,
 274       base::TimeTicks monotonic_time) OVERRIDE {
 275     // Verify that the host can draw, it's just not visible.
 276     EXPECT_TRUE(host_impl->CanDraw());
 277     if (num_begin_frames_ < 2) {
 278       if (!num_begin_frames_) {
 279         // We have a long animation running. It should continue to tick even
 280         // if we are not visible.
 281         PostSetVisibleToMainThread(false);
 282       }
 283       num_begin_frames_++;
 284       return;
 285     }
 286     EndTest();
 287   }
 288
 289   virtual void AfterTest() OVERRIDE {}
 290
 291  private:
 292   int num_begin_frames_;
 293 };
 294
 295 SINGLE_AND_MULTI_THREAD_TEST_F(
 296     LayerTreeHostAnimationTestTickAnimationWhileBackgrounded);
 297
 298 // Ensures that animation time remains monotonic when we switch from foreground
 299 // to background ticking and back, even if we're skipping draws due to
 300 // checkerboarding when in the foreground.
 301 class LayerTreeHostAnimationTestAnimationTickTimeIsMonotonic
 302     : public LayerTreeHostAnimationTest {
 303  public:
 304   LayerTreeHostAnimationTestAnimationTickTimeIsMonotonic()
 305       : has_background_ticked_(false), num_foreground_animates_(0) {}
 306
 307   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
 308     // Make sure that drawing many times doesn't cause a checkerboarded
 309     // animation to start so we avoid flake in this test.
 310     settings->timeout_and_draw_when_animation_checkerboards = false;
 311   }
 312
 313   virtual void BeginTest() OVERRIDE {
 314     PostAddLongAnimationToMainThread(layer_tree_host()->root_layer());
 315   }
 316
 317   virtual void AnimateLayers(LayerTreeHostImpl* host_impl,
 318                              base::TimeTicks monotonic_time) OVERRIDE {
 319     EXPECT_GE(monotonic_time, last_tick_time_);
 320     last_tick_time_ = monotonic_time;
 321     if (host_impl->visible()) {
 322       num_foreground_animates_++;
 323       if (num_foreground_animates_ > 1 && !has_background_ticked_)
 324         PostSetVisibleToMainThread(false);
 325       else if (has_background_ticked_)
 326         EndTest();
 327     } else {
 328       has_background_ticked_ = true;
 329       PostSetVisibleToMainThread(true);
 330     }
 331   }
 332
 333   virtual DrawResult PrepareToDrawOnThread(
 334       LayerTreeHostImpl* host_impl,
 335       LayerTreeHostImpl::FrameData* frame,
 336       DrawResult draw_result) OVERRIDE {
 337     if (TestEnded())
 338       return draw_result;
 339     return DRAW_ABORTED_CHECKERBOARD_ANIMATIONS;
 340   }
 341
 342   virtual void AfterTest() OVERRIDE {}
 343
 344  private:
 345   bool has_background_ticked_;
 346   int num_foreground_animates_;
 347   base::TimeTicks last_tick_time_;
 348 };
 349
 350 SINGLE_AND_MULTI_THREAD_TEST_F(
 351     LayerTreeHostAnimationTestAnimationTickTimeIsMonotonic);
 352
 353 // Ensures that animations do not tick when we are backgrounded and
 354 // and we have an empty active tree.
 355 class LayerTreeHostAnimationTestNoBackgroundTickingWithoutActiveTree
 356     : public LayerTreeHostAnimationTest {
 357  protected:
 358   LayerTreeHostAnimationTestNoBackgroundTickingWithoutActiveTree()
 359       : active_tree_was_animated_(false) {}
 360
 361   virtual base::TimeDelta LowFrequencyAnimationInterval() const OVERRIDE {
 362     return base::TimeDelta::FromMilliseconds(4);
 363   }
 364
 365   virtual void BeginTest() OVERRIDE {
 366     PostAddAnimationToMainThread(layer_tree_host()->root_layer());
 367   }
 368
 369   virtual void NotifyAnimationFinished(
 370       base::TimeTicks monotonic_time,
 371       Animation::TargetProperty target_property) OVERRIDE {
 372     // Replace animated commits with an empty tree.
 373     layer_tree_host()->SetRootLayer(make_scoped_refptr<Layer>(NULL));
 374   }
 375
 376   virtual void DidCommit() OVERRIDE {
 377     // This alternates setting an empty tree and a non-empty tree with an
 378     // animation.
 379     switch (layer_tree_host()->source_frame_number()) {
 380       case 1:
 381         // Wait for NotifyAnimationFinished to commit an empty tree.
 382         break;
 383       case 2:
 384         SetupTree();
 385         AddOpacityTransitionToLayer(
 386             layer_tree_host()->root_layer(), 0.000001, 0, 0.5, true);
 387         break;
 388       case 3:
 389         // Wait for NotifyAnimationFinished to commit an empty tree.
 390         break;
 391       case 4:
 392         EndTest();
 393         break;
 394     }
 395   }
 396
 397   virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 398     // At the start of every commit, block activations and make sure
 399     // we are backgrounded.
 400     host_impl->BlockNotifyReadyToActivateForTesting(true);
 401     PostSetVisibleToMainThread(false);
 402   }
 403
 404   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 405     if (!host_impl->settings().impl_side_painting) {
 406       // There are no activations to block if we're not impl-side-painting,
 407       // so just advance the test immediately.
 408       if (host_impl->active_tree()->source_frame_number() < 3)
 409         UnblockActivations(host_impl);
 410       return;
 411     }
 412
 413     // We block activation for several ticks to make sure that, even though
 414     // there is a pending tree with animations, we still do not background
 415     // tick if the active tree is empty.
 416     if (host_impl->pending_tree()->source_frame_number() < 3) {
 417       base::MessageLoopProxy::current()->PostDelayedTask(
 418           FROM_HERE,
 419           base::Bind(
 420               &LayerTreeHostAnimationTestNoBackgroundTickingWithoutActiveTree::
 421                    UnblockActivations,
 422               base::Unretained(this),
 423               host_impl),
 424           4 * LowFrequencyAnimationInterval());
 425     }
 426   }
 427
 428   virtual void UnblockActivations(LayerTreeHostImpl* host_impl) {
 429     host_impl->BlockNotifyReadyToActivateForTesting(false);
 430   }
 431
 432   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 433     active_tree_was_animated_ = false;
 434
 435     // Verify that commits are actually alternating with empty / non-empty
 436     // trees.
 437     int frame_number = host_impl->active_tree()->source_frame_number();
 438     switch (frame_number) {
 439       case 0:
 440       case 2:
 441         EXPECT_TRUE(host_impl->active_tree()->root_layer())
 442             << "frame: " << frame_number;
 443         break;
 444       case 1:
 445       case 3:
 446         EXPECT_FALSE(host_impl->active_tree()->root_layer())
 447             << "frame: " << frame_number;
 448         break;
 449     }
 450
 451     if (host_impl->active_tree()->source_frame_number() < 3) {
 452       // Initiate the next commit after a delay to give us a chance to
 453       // background tick if the active tree isn't empty.
 454       base::MessageLoopProxy::current()->PostDelayedTask(
 455           FROM_HERE,
 456           base::Bind(
 457               &LayerTreeHostAnimationTestNoBackgroundTickingWithoutActiveTree::
 458                    InitiateNextCommit,
 459               base::Unretained(this),
 460               host_impl),
 461           4 * LowFrequencyAnimationInterval());
 462     }
 463   }
 464
 465   virtual void WillAnimateLayers(LayerTreeHostImpl* host_impl,
 466                                  base::TimeTicks monotonic_time) OVERRIDE {
 467     EXPECT_TRUE(host_impl->active_tree()->root_layer());
 468     active_tree_was_animated_ = true;
 469   }
 470
 471   void InitiateNextCommit(LayerTreeHostImpl* host_impl) {
 472     // Verify that we actually animated when we should have.
 473     bool has_active_tree = host_impl->active_tree()->root_layer();
 474     EXPECT_EQ(has_active_tree, active_tree_was_animated_);
 475
 476     // The next commit is blocked until we become visible again.
 477     PostSetVisibleToMainThread(true);
 478   }
 479
 480   virtual void AfterTest() OVERRIDE {}
 481
 482   bool active_tree_was_animated_;
 483 };
 484
 485 SINGLE_AND_MULTI_THREAD_TEST_F(
 486     LayerTreeHostAnimationTestNoBackgroundTickingWithoutActiveTree);
 487
 488 // Ensure that an animation's timing function is respected.
 489 class LayerTreeHostAnimationTestAddAnimationWithTimingFunction
 490     : public LayerTreeHostAnimationTest {
 491  public:
 492   LayerTreeHostAnimationTestAddAnimationWithTimingFunction() {}
 493
 494   virtual void SetupTree() OVERRIDE {
 495     LayerTreeHostAnimationTest::SetupTree();
 496     content_ = FakeContentLayer::Create(&client_);
 497     content_->SetBounds(gfx::Size(4, 4));
 498     layer_tree_host()->root_layer()->AddChild(content_);
 499   }
 500
 501   virtual void BeginTest() OVERRIDE {
 502     PostAddAnimationToMainThread(content_.get());
 503   }
 504
 505   virtual void AnimateLayers(
 506       LayerTreeHostImpl* host_impl,
 507       base::TimeTicks monotonic_time) OVERRIDE {
 508     LayerAnimationController* controller_impl =
 509         host_impl->active_tree()->root_layer()->children()[0]->
 510         layer_animation_controller();
 511     Animation* animation =
 512         controller_impl->GetAnimation(Animation::Opacity);
 513     if (!animation)
 514       return;
 515
 516     const FloatAnimationCurve* curve =
 517         animation->curve()->ToFloatAnimationCurve();
 518     float start_opacity = curve->GetValue(0.0);
 519     float end_opacity = curve->GetValue(curve->Duration());
 520     float linearly_interpolated_opacity =
 521         0.25f * end_opacity + 0.75f * start_opacity;
 522     double time = curve->Duration() * 0.25;
 523     // If the linear timing function associated with this animation was not
 524     // picked up, then the linearly interpolated opacity would be different
 525     // because of the default ease timing function.
 526     EXPECT_FLOAT_EQ(linearly_interpolated_opacity, curve->GetValue(time));
 527
 528     EndTest();
 529   }
 530
 531   virtual void AfterTest() OVERRIDE {}
 532
 533   FakeContentLayerClient client_;
 534   scoped_refptr<FakeContentLayer> content_;
 535 };
 536
 537 SINGLE_AND_MULTI_THREAD_TEST_F(
 538     LayerTreeHostAnimationTestAddAnimationWithTimingFunction);
 539
 540 // Ensures that main thread animations have their start times synchronized with
 541 // impl thread animations.
 542 class LayerTreeHostAnimationTestSynchronizeAnimationStartTimes
 543     : public LayerTreeHostAnimationTest {
 544  public:
 545   LayerTreeHostAnimationTestSynchronizeAnimationStartTimes()
 546       : main_start_time_(-1.0),
 547         impl_start_time_(-1.0) {}
 548
 549   virtual void SetupTree() OVERRIDE {
 550     LayerTreeHostAnimationTest::SetupTree();
 551     content_ = FakeContentLayer::Create(&client_);
 552     content_->SetBounds(gfx::Size(4, 4));
 553     content_->set_layer_animation_delegate(this);
 554     layer_tree_host()->root_layer()->AddChild(content_);
 555   }
 556
 557   virtual void BeginTest() OVERRIDE {
 558     PostAddAnimationToMainThread(content_.get());
 559   }
 560
 561   virtual void NotifyAnimationStarted(
 562       base::TimeTicks monotonic_time,
 563       Animation::TargetProperty target_property) OVERRIDE {
 564     LayerAnimationController* controller =
 565         layer_tree_host()->root_layer()->children()[0]->
 566         layer_animation_controller();
 567     Animation* animation =
 568         controller->GetAnimation(Animation::Opacity);
 569     main_start_time_ =
 570         (animation->start_time() - base::TimeTicks()).InSecondsF();
 571     controller->RemoveAnimation(animation->id());
 572
 573     if (impl_start_time_ > 0.0)
 574       EndTest();
 575   }
 576
 577   virtual void UpdateAnimationState(
 578       LayerTreeHostImpl* impl_host,
 579       bool has_unfinished_animation) OVERRIDE {
 580     LayerAnimationController* controller =
 581         impl_host->active_tree()->root_layer()->children()[0]->
 582         layer_animation_controller();
 583     Animation* animation =
 584         controller->GetAnimation(Animation::Opacity);
 585     if (!animation)
 586       return;
 587
 588     impl_start_time_ =
 589         (animation->start_time() - base::TimeTicks()).InSecondsF();
 590     controller->RemoveAnimation(animation->id());
 591
 592     if (main_start_time_ > 0.0)
 593       EndTest();
 594   }
 595
 596   virtual void AfterTest() OVERRIDE {
 597     EXPECT_FLOAT_EQ(impl_start_time_, main_start_time_);
 598   }
 599
 600  private:
 601   double main_start_time_;
 602   double impl_start_time_;
 603   FakeContentLayerClient client_;
 604   scoped_refptr<FakeContentLayer> content_;
 605 };
 606
 607 SINGLE_AND_MULTI_THREAD_TEST_F(
 608     LayerTreeHostAnimationTestSynchronizeAnimationStartTimes);
 609
 610 // Ensures that notify animation finished is called.
 611 class LayerTreeHostAnimationTestAnimationFinishedEvents
 612     : public LayerTreeHostAnimationTest {
 613  public:
 614   LayerTreeHostAnimationTestAnimationFinishedEvents() {}
 615
 616   virtual void BeginTest() OVERRIDE {
 617     PostAddInstantAnimationToMainThread(layer_tree_host()->root_layer());
 618   }
 619
 620   virtual void NotifyAnimationFinished(
 621       base::TimeTicks monotonic_time,
 622       Animation::TargetProperty target_property) OVERRIDE {
 623     LayerAnimationController* controller =
 624         layer_tree_host()->root_layer()->layer_animation_controller();
 625     Animation* animation =
 626         controller->GetAnimation(Animation::Opacity);
 627     if (animation)
 628       controller->RemoveAnimation(animation->id());
 629     EndTest();
 630   }
 631
 632   virtual void AfterTest() OVERRIDE {}
 633 };
 634
 635 SINGLE_AND_MULTI_THREAD_TEST_F(
 636     LayerTreeHostAnimationTestAnimationFinishedEvents);
 637
 638 // Ensures that when opacity is being animated, this value does not cause the
 639 // subtree to be skipped.
 640 class LayerTreeHostAnimationTestDoNotSkipLayersWithAnimatedOpacity
 641     : public LayerTreeHostAnimationTest {
 642  public:
 643   LayerTreeHostAnimationTestDoNotSkipLayersWithAnimatedOpacity()
 644       : update_check_layer_(FakeContentLayer::Create(&client_)) {
 645   }
 646
 647   virtual void SetupTree() OVERRIDE {
 648     update_check_layer_->SetOpacity(0.f);
 649     layer_tree_host()->SetRootLayer(update_check_layer_);
 650     LayerTreeHostAnimationTest::SetupTree();
 651   }
 652
 653   virtual void BeginTest() OVERRIDE {
 654     PostAddAnimationToMainThread(update_check_layer_.get());
 655   }
 656
 657   virtual void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
 658     LayerAnimationController* controller_impl =
 659         host_impl->active_tree()->root_layer()->layer_animation_controller();
 660     Animation* animation_impl =
 661         controller_impl->GetAnimation(Animation::Opacity);
 662     controller_impl->RemoveAnimation(animation_impl->id());
 663     EndTest();
 664   }
 665
 666   virtual void AfterTest() OVERRIDE {
 667     // Update() should have been called once, proving that the layer was not
 668     // skipped.
 669     EXPECT_EQ(1u, update_check_layer_->update_count());
 670
 671     // clear update_check_layer_ so LayerTreeHost dies.
 672     update_check_layer_ = NULL;
 673   }
 674
 675  private:
 676   FakeContentLayerClient client_;
 677   scoped_refptr<FakeContentLayer> update_check_layer_;
 678 };
 679
 680 SINGLE_AND_MULTI_THREAD_TEST_F(
 681     LayerTreeHostAnimationTestDoNotSkipLayersWithAnimatedOpacity);
 682
 683 // Layers added to tree with existing active animations should have the
 684 // animation correctly recognized.
 685 class LayerTreeHostAnimationTestLayerAddedWithAnimation
 686     : public LayerTreeHostAnimationTest {
 687  public:
 688   LayerTreeHostAnimationTestLayerAddedWithAnimation() {}
 689
 690   virtual void BeginTest() OVERRIDE {
 691     PostSetNeedsCommitToMainThread();
 692   }
 693
 694   virtual void DidCommit() OVERRIDE {
 695     if (layer_tree_host()->source_frame_number() == 1) {
 696       scoped_refptr<Layer> layer = Layer::Create();
 697       layer->set_layer_animation_delegate(this);
 698
 699       // Any valid AnimationCurve will do here.
 700       scoped_ptr<AnimationCurve> curve(EaseTimingFunction::Create());
 701       scoped_ptr<Animation> animation(
 702           Animation::Create(curve.Pass(), 1, 1,
 703                                   Animation::Opacity));
 704       layer->layer_animation_controller()->AddAnimation(animation.Pass());
 705
 706       // We add the animation *before* attaching the layer to the tree.
 707       layer_tree_host()->root_layer()->AddChild(layer);
 708     }
 709   }
 710
 711   virtual void AnimateLayers(
 712       LayerTreeHostImpl* impl_host,
 713       base::TimeTicks monotonic_time) OVERRIDE {
 714     EndTest();
 715   }
 716
 717   virtual void AfterTest() OVERRIDE {}
 718 };
 719
 720 SINGLE_AND_MULTI_THREAD_TEST_F(
 721     LayerTreeHostAnimationTestLayerAddedWithAnimation);
 722
 723 class LayerTreeHostAnimationTestCancelAnimateCommit
 724     : public LayerTreeHostAnimationTest {
 725  public:
 726   LayerTreeHostAnimationTestCancelAnimateCommit()
 727       : num_begin_frames_(0), num_commit_calls_(0), num_draw_calls_(0) {}
 728
 729   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 730
 731   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
 732     num_begin_frames_++;
 733     // No-op animate will cancel the commit.
 734     if (layer_tree_host()->source_frame_number() == 1) {
 735       EndTest();
 736       return;
 737     }
 738     layer_tree_host()->SetNeedsAnimate();
 739   }
 740
 741   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
 742     num_commit_calls_++;
 743     if (impl->active_tree()->source_frame_number() > 1)
 744       FAIL() << "Commit should have been canceled.";
 745   }
 746
 747   virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
 748     num_draw_calls_++;
 749     if (impl->active_tree()->source_frame_number() > 1)
 750       FAIL() << "Draw should have been canceled.";
 751   }
 752
 753   virtual void AfterTest() OVERRIDE {
 754     EXPECT_EQ(2, num_begin_frames_);
 755     EXPECT_EQ(1, num_commit_calls_);
 756     EXPECT_EQ(1, num_draw_calls_);
 757   }
 758
 759  private:
 760   int num_begin_frames_;
 761   int num_commit_calls_;
 762   int num_draw_calls_;
 763   FakeContentLayerClient client_;
 764   scoped_refptr<FakeContentLayer> content_;
 765 };
 766
 767 MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestCancelAnimateCommit);
 768
 769 class LayerTreeHostAnimationTestForceRedraw
 770     : public LayerTreeHostAnimationTest {
 771  public:
 772   LayerTreeHostAnimationTestForceRedraw()
 773       : num_animate_(0), num_draw_layers_(0) {}
 774
 775   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 776
 777   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
 778     if (++num_animate_ < 2)
 779       layer_tree_host()->SetNeedsAnimate();
 780   }
 781
 782   virtual void Layout() OVERRIDE {
 783     layer_tree_host()->SetNextCommitForcesRedraw();
 784   }
 785
 786   virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
 787     if (++num_draw_layers_ == 2)
 788       EndTest();
 789   }
 790
 791   virtual void AfterTest() OVERRIDE {
 792     // The first commit will always draw; make sure the second draw triggered
 793     // by the animation was not cancelled.
 794     EXPECT_EQ(2, num_draw_layers_);
 795     EXPECT_EQ(2, num_animate_);
 796   }
 797
 798  private:
 799   int num_animate_;
 800   int num_draw_layers_;
 801 };
 802
 803 MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestForceRedraw);
 804
 805 class LayerTreeHostAnimationTestAnimateAfterSetNeedsCommit
 806     : public LayerTreeHostAnimationTest {
 807  public:
 808   LayerTreeHostAnimationTestAnimateAfterSetNeedsCommit()
 809       : num_animate_(0), num_draw_layers_(0) {}
 810
 811   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
 812
 813   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
 814     if (++num_animate_ <= 2) {
 815       layer_tree_host()->SetNeedsCommit();
 816       layer_tree_host()->SetNeedsAnimate();
 817     }
 818   }
 819
 820   virtual void DrawLayersOnThread(LayerTreeHostImpl* impl) OVERRIDE {
 821     if (++num_draw_layers_ == 2)
 822       EndTest();
 823   }
 824
 825   virtual void AfterTest() OVERRIDE {
 826     // The first commit will always draw; make sure the second draw triggered
 827     // by the SetNeedsCommit was not cancelled.
 828     EXPECT_EQ(2, num_draw_layers_);
 829     EXPECT_GE(num_animate_, 2);
 830   }
 831
 832  private:
 833   int num_animate_;
 834   int num_draw_layers_;
 835 };
 836
 837 MULTI_THREAD_TEST_F(LayerTreeHostAnimationTestAnimateAfterSetNeedsCommit);
 838
 839 // Make sure the main thread can still execute animations when CanDraw() is not
 840 // true.
 841 class LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw
 842     : public LayerTreeHostAnimationTest {
 843  public:
 844   LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw() : started_times_(0) {}
 845
 846   virtual void SetupTree() OVERRIDE {
 847     LayerTreeHostAnimationTest::SetupTree();
 848     content_ = FakeContentLayer::Create(&client_);
 849     content_->SetBounds(gfx::Size(4, 4));
 850     content_->set_layer_animation_delegate(this);
 851     layer_tree_host()->root_layer()->AddChild(content_);
 852   }
 853
 854   virtual void BeginTest() OVERRIDE {
 855     layer_tree_host()->SetViewportSize(gfx::Size());
 856     PostAddAnimationToMainThread(content_.get());
 857   }
 858
 859   virtual void NotifyAnimationStarted(
 860       base::TimeTicks monotonic_time,
 861       Animation::TargetProperty target_property) OVERRIDE {
 862     started_times_++;
 863   }
 864
 865   virtual void NotifyAnimationFinished(
 866       base::TimeTicks monotonic_time,
 867       Animation::TargetProperty target_property) OVERRIDE {
 868     EndTest();
 869   }
 870
 871   virtual void AfterTest() OVERRIDE {
 872     EXPECT_EQ(1, started_times_);
 873   }
 874
 875  private:
 876   int started_times_;
 877   FakeContentLayerClient client_;
 878   scoped_refptr<FakeContentLayer> content_;
 879 };
 880
 881 SINGLE_AND_MULTI_THREAD_TEST_F(
 882     LayerTreeHostAnimationTestRunAnimationWhenNotCanDraw);
 883
 884 // Make sure the main thread can still execute animations when the renderer is
 885 // backgrounded.
 886 class LayerTreeHostAnimationTestRunAnimationWhenNotVisible
 887     : public LayerTreeHostAnimationTest {
 888  public:
 889   LayerTreeHostAnimationTestRunAnimationWhenNotVisible() : started_times_(0) {}
 890
 891   virtual void SetupTree() OVERRIDE {
 892     LayerTreeHostAnimationTest::SetupTree();
 893     content_ = FakeContentLayer::Create(&client_);
 894     content_->SetBounds(gfx::Size(4, 4));
 895     content_->set_layer_animation_delegate(this);
 896     layer_tree_host()->root_layer()->AddChild(content_);
 897   }
 898
 899   virtual void BeginTest() OVERRIDE {
 900     visible_ = true;
 901     PostAddAnimationToMainThread(content_.get());
 902   }
 903
 904   virtual void DidCommit() OVERRIDE {
 905     visible_ = false;
 906     layer_tree_host()->SetVisible(false);
 907   }
 908
 909   virtual void NotifyAnimationStarted(
 910       base::TimeTicks monotonic_time,
 911       Animation::TargetProperty target_property) OVERRIDE {
 912     EXPECT_FALSE(visible_);
 913     started_times_++;
 914   }
 915
 916   virtual void NotifyAnimationFinished(
 917       base::TimeTicks monotonic_time,
 918       Animation::TargetProperty target_property) OVERRIDE {
 919     EXPECT_FALSE(visible_);
 920     EXPECT_EQ(1, started_times_);
 921     EndTest();
 922   }
 923
 924   virtual void AfterTest() OVERRIDE {}
 925
 926  private:
 927   bool visible_;
 928   int started_times_;
 929   FakeContentLayerClient client_;
 930   scoped_refptr<FakeContentLayer> content_;
 931 };
 932
 933 SINGLE_AND_MULTI_THREAD_TEST_F(
 934     LayerTreeHostAnimationTestRunAnimationWhenNotVisible);
 935
 936 // Animations should not be started when frames are being skipped due to
 937 // checkerboard.
 938 class LayerTreeHostAnimationTestCheckerboardDoesntStartAnimations
 939     : public LayerTreeHostAnimationTest {
 940   virtual void SetupTree() OVERRIDE {
 941     LayerTreeHostAnimationTest::SetupTree();
 942     content_ = FakeContentLayer::Create(&client_);
 943     content_->SetBounds(gfx::Size(4, 4));
 944     content_->set_layer_animation_delegate(this);
 945     layer_tree_host()->root_layer()->AddChild(content_);
 946   }
 947
 948   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
 949     // Make sure that drawing many times doesn't cause a checkerboarded
 950     // animation to start so we avoid flake in this test.
 951     settings->timeout_and_draw_when_animation_checkerboards = false;
 952   }
 953
 954   virtual void BeginTest() OVERRIDE {
 955     prevented_draw_ = 0;
 956     added_animations_ = 0;
 957     started_times_ = 0;
 958
 959     PostSetNeedsCommitToMainThread();
 960   }
 961
 962   virtual DrawResult PrepareToDrawOnThread(
 963       LayerTreeHostImpl* host_impl,
 964       LayerTreeHostImpl::FrameData* frame_data,
 965       DrawResult draw_result) OVERRIDE {
 966     if (added_animations_ < 2)
 967       return draw_result;
 968     if (TestEnded())
 969       return draw_result;
 970     // Act like there is checkerboard when the second animation wants to draw.
 971     ++prevented_draw_;
 972     if (prevented_draw_ > 2)
 973       EndTest();
 974     return DRAW_ABORTED_CHECKERBOARD_ANIMATIONS;
 975   }
 976
 977   virtual void DidCommitAndDrawFrame() OVERRIDE {
 978     switch (layer_tree_host()->source_frame_number()) {
 979       case 1:
 980         // The animation is longer than 1 BeginFrame interval.
 981         AddOpacityTransitionToLayer(content_.get(), 0.1, 0.2f, 0.8f, false);
 982         added_animations_++;
 983         break;
 984       case 2:
 985         // This second animation will not be drawn so it should not start.
 986         AddAnimatedTransformToLayer(content_.get(), 0.1, 5, 5);
 987         added_animations_++;
 988         break;
 989     }
 990   }
 991
 992   virtual void NotifyAnimationStarted(
 993       base::TimeTicks monotonic_time,
 994       Animation::TargetProperty target_property) OVERRIDE {
 995     if (TestEnded())
 996       return;
 997     started_times_++;
 998   }
 999
1000   virtual void AfterTest() OVERRIDE {
1001     // Make sure we tried to draw the second animation but failed.
1002     EXPECT_LT(0, prevented_draw_);
1003     // The first animation should be started, but the second should not because
1004     // of checkerboard.
1005     EXPECT_EQ(1, started_times_);
1006   }
1007
1008   int prevented_draw_;
1009   int added_animations_;
1010   int started_times_;
1011   FakeContentLayerClient client_;
1012   scoped_refptr<FakeContentLayer> content_;
1013 };
1014
1015 MULTI_THREAD_TEST_F(
1016     LayerTreeHostAnimationTestCheckerboardDoesntStartAnimations);
1017
1018 // Verifies that scroll offset animations are only accepted when impl-scrolling
1019 // is supported, and that when scroll offset animations are accepted,
1020 // scroll offset updates are sent back to the main thread.
1021 class LayerTreeHostAnimationTestScrollOffsetChangesArePropagated
1022     : public LayerTreeHostAnimationTest {
1023  public:
1024   LayerTreeHostAnimationTestScrollOffsetChangesArePropagated() {}
1025
1026   virtual void SetupTree() OVERRIDE {
1027     LayerTreeHostAnimationTest::SetupTree();
1028
1029     scroll_layer_ = FakeContentLayer::Create(&client_);
1030     scroll_layer_->SetScrollClipLayerId(layer_tree_host()->root_layer()->id());
1031     scroll_layer_->SetBounds(gfx::Size(1000, 1000));
1032     scroll_layer_->SetScrollOffset(gfx::Vector2d(10, 20));
1033     layer_tree_host()->root_layer()->AddChild(scroll_layer_);
1034   }
1035
1036   virtual void BeginTest() OVERRIDE {
1037     PostSetNeedsCommitToMainThread();
1038   }
1039
1040   virtual void DidCommit() OVERRIDE {
1041     switch (layer_tree_host()->source_frame_number()) {
1042       case 1: {
1043         scoped_ptr<ScrollOffsetAnimationCurve> curve(
1044             ScrollOffsetAnimationCurve::Create(
1045                 gfx::Vector2dF(500.f, 550.f),
1046                 EaseInOutTimingFunction::Create()));
1047         scoped_ptr<Animation> animation(Animation::Create(
1048             curve.PassAs<AnimationCurve>(), 1, 0, Animation::ScrollOffset));
1049         animation->set_needs_synchronized_start_time(true);
1050         bool animation_added = scroll_layer_->AddAnimation(animation.Pass());
1051         bool impl_scrolling_supported =
1052             layer_tree_host()->proxy()->SupportsImplScrolling();
1053         EXPECT_EQ(impl_scrolling_supported, animation_added);
1054         if (!impl_scrolling_supported)
1055           EndTest();
1056         break;
1057       }
1058       default:
1059         if (scroll_layer_->scroll_offset().x() > 10 &&
1060             scroll_layer_->scroll_offset().y() > 20)
1061           EndTest();
1062     }
1063   }
1064
1065   virtual void AfterTest() OVERRIDE {}
1066
1067  private:
1068   FakeContentLayerClient client_;
1069   scoped_refptr<FakeContentLayer> scroll_layer_;
1070 };
1071
1072 SINGLE_AND_MULTI_THREAD_TEST_F(
1073     LayerTreeHostAnimationTestScrollOffsetChangesArePropagated);
1074
1075 // Ensure that animation time is correctly updated when animations are frozen
1076 // because of checkerboarding.
1077 class LayerTreeHostAnimationTestFrozenAnimationTickTime
1078     : public LayerTreeHostAnimationTest {
1079  public:
1080   LayerTreeHostAnimationTestFrozenAnimationTickTime()
1081       : started_animating_(false), num_commits_(0), num_draw_attempts_(2) {}
1082
1083   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
1084     // Make sure that drawing many times doesn't cause a checkerboarded
1085     // animation to start so we avoid flake in this test.
1086     settings->timeout_and_draw_when_animation_checkerboards = false;
1087   }
1088
1089   virtual void BeginTest() OVERRIDE {
1090     PostAddAnimationToMainThread(layer_tree_host()->root_layer());
1091   }
1092
1093   virtual void BeginMainFrame(const BeginFrameArgs& args) OVERRIDE {
1094     last_main_thread_tick_time_ = args.frame_time;
1095   }
1096
1097   virtual void AnimateLayers(LayerTreeHostImpl* host_impl,
1098                              base::TimeTicks monotonic_time) OVERRIDE {
1099     if (TestEnded())
1100       return;
1101     if (!started_animating_) {
1102       started_animating_ = true;
1103       expected_impl_tick_time_ = monotonic_time;
1104     } else {
1105       EXPECT_EQ(expected_impl_tick_time_, monotonic_time);
1106       if (num_commits_ > 2)
1107         EndTest();
1108     }
1109   }
1110
1111   virtual DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1112                                            LayerTreeHostImpl::FrameData* frame,
1113                                            DrawResult draw_result) OVERRIDE {
1114     if (TestEnded())
1115       return draw_result;
1116     num_draw_attempts_++;
1117     if (num_draw_attempts_ > 2) {
1118       num_draw_attempts_ = 0;
1119       PostSetNeedsCommitToMainThread();
1120     }
1121     return DRAW_ABORTED_CHECKERBOARD_ANIMATIONS;
1122   }
1123
1124   virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1125     if (!started_animating_)
1126       return;
1127     expected_impl_tick_time_ =
1128         std::max(expected_impl_tick_time_, last_main_thread_tick_time_);
1129     num_commits_++;
1130   }
1131
1132   virtual void AfterTest() OVERRIDE {}
1133
1134  private:
1135   bool started_animating_;
1136   int num_commits_;
1137   int num_draw_attempts_;
1138   base::TimeTicks last_main_thread_tick_time_;
1139   base::TimeTicks expected_impl_tick_time_;
1140 };
1141
1142 // Only the non-impl-paint multi-threaded compositor freezes animations.
1143 MULTI_THREAD_NOIMPL_TEST_F(LayerTreeHostAnimationTestFrozenAnimationTickTime);
1144
1145 // When animations are simultaneously added to an existing layer and to a new
1146 // layer, they should start at the same time, even when there's already a
1147 // running animation on the existing layer.
1148 class LayerTreeHostAnimationTestAnimationsAddedToNewAndExistingLayers
1149     : public LayerTreeHostAnimationTest {
1150  public:
1151   LayerTreeHostAnimationTestAnimationsAddedToNewAndExistingLayers()
1152       : frame_count_with_pending_tree_(0) {}
1153
1154   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1155
1156   virtual void DidCommit() OVERRIDE {
1157     if (layer_tree_host()->source_frame_number() == 1) {
1158       AddAnimatedTransformToLayer(layer_tree_host()->root_layer(), 4, 1, 1);
1159     } else if (layer_tree_host()->source_frame_number() == 2) {
1160       AddOpacityTransitionToLayer(
1161           layer_tree_host()->root_layer(), 1, 0.f, 0.5f, true);
1162
1163       scoped_refptr<Layer> layer = Layer::Create();
1164       layer_tree_host()->root_layer()->AddChild(layer);
1165       layer->set_layer_animation_delegate(this);
1166       layer->SetBounds(gfx::Size(4, 4));
1167       AddOpacityTransitionToLayer(layer.get(), 1, 0.f, 0.5f, true);
1168     }
1169   }
1170
1171   virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1172     host_impl->BlockNotifyReadyToActivateForTesting(true);
1173   }
1174
1175   virtual void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) OVERRIDE {
1176     // For the commit that added animations to new and existing layers, keep
1177     // blocking activation. We want to verify that even with activation blocked,
1178     // the animation on the layer that's already in the active tree won't get a
1179     // head start.
1180     if (!host_impl->settings().impl_side_painting ||
1181         host_impl->pending_tree()->source_frame_number() != 2)
1182       host_impl->BlockNotifyReadyToActivateForTesting(false);
1183   }
1184
1185   virtual void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
1186                                           const BeginFrameArgs& args) OVERRIDE {
1187     if (!host_impl->pending_tree() ||
1188         host_impl->pending_tree()->source_frame_number() != 2)
1189       return;
1190
1191     frame_count_with_pending_tree_++;
1192     if (frame_count_with_pending_tree_ == 2)
1193       host_impl->BlockNotifyReadyToActivateForTesting(false);
1194   }
1195
1196   virtual void UpdateAnimationState(LayerTreeHostImpl* host_impl,
1197                                     bool has_unfinished_animation) OVERRIDE {
1198     LayerAnimationController* root_controller_impl =
1199         host_impl->active_tree()->root_layer()->layer_animation_controller();
1200     Animation* root_animation =
1201         root_controller_impl->GetAnimation(Animation::Opacity);
1202     if (!root_animation || root_animation->run_state() != Animation::Running)
1203       return;
1204
1205     LayerAnimationController* child_controller_impl =
1206         host_impl->active_tree()->root_layer()->children()
1207             [0]->layer_animation_controller();
1208     Animation* child_animation =
1209         child_controller_impl->GetAnimation(Animation::Opacity);
1210     EXPECT_EQ(Animation::Running, child_animation->run_state());
1211     EXPECT_EQ(root_animation->start_time(), child_animation->start_time());
1212     root_controller_impl->AbortAnimations(Animation::Opacity);
1213     root_controller_impl->AbortAnimations(Animation::Transform);
1214     child_controller_impl->AbortAnimations(Animation::Opacity);
1215     EndTest();
1216   }
1217
1218   virtual void AfterTest() OVERRIDE {}
1219
1220  private:
1221   int frame_count_with_pending_tree_;
1222 };
1223
1224 SINGLE_AND_MULTI_THREAD_TEST_F(
1225     LayerTreeHostAnimationTestAnimationsAddedToNewAndExistingLayers);
1226
1227 class LayerTreeHostAnimationTestAddAnimationAfterAnimating
1228     : public LayerTreeHostAnimationTest {
1229  public:
1230   LayerTreeHostAnimationTestAddAnimationAfterAnimating()
1231       : num_swap_buffers_(0) {}
1232
1233   virtual void SetupTree() OVERRIDE {
1234     LayerTreeHostAnimationTest::SetupTree();
1235     content_ = Layer::Create();
1236     content_->SetBounds(gfx::Size(4, 4));
1237     layer_tree_host()->root_layer()->AddChild(content_);
1238   }
1239
1240   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
1241
1242   virtual void DidCommit() OVERRIDE {
1243     switch (layer_tree_host()->source_frame_number()) {
1244       case 1:
1245         // First frame: add an animation to the root layer.
1246         AddAnimatedTransformToLayer(layer_tree_host()->root_layer(), 0.1, 5, 5);
1247         break;
1248       case 2:
1249         // Second frame: add an animation to the content layer. The root layer
1250         // animation has caused us to animate already during this frame.
1251         AddOpacityTransitionToLayer(content_.get(), 0.1, 5, 5, false);
1252         break;
1253     }
1254   }
1255
1256   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
1257                                    bool result) OVERRIDE {
1258     // After both animations have started, verify that they have valid
1259     // start times.
1260     num_swap_buffers_++;
1261     AnimationRegistrar::AnimationControllerMap copy =
1262         host_impl->animation_registrar()->active_animation_controllers();
1263     if (copy.size() == 2u) {
1264       EndTest();
1265       EXPECT_GE(num_swap_buffers_, 3);
1266       for (AnimationRegistrar::AnimationControllerMap::iterator iter =
1267                copy.begin();
1268            iter != copy.end();
1269            ++iter) {
1270         int id = ((*iter).second->id());
1271         if (id == host_impl->RootLayer()->id()) {
1272           Animation* anim = (*iter).second->GetAnimation(Animation::Transform);
1273           EXPECT_GT((anim->start_time() - base::TimeTicks()).InSecondsF(), 0);
1274         } else if (id == host_impl->RootLayer()->children()[0]->id()) {
1275           Animation* anim = (*iter).second->GetAnimation(Animation::Opacity);
1276           EXPECT_GT((anim->start_time() - base::TimeTicks()).InSecondsF(), 0);
1277         }
1278       }
1279     }
1280   }
1281
1282   virtual void AfterTest() OVERRIDE {}
1283
1284  private:
1285   scoped_refptr<Layer> content_;
1286   int num_swap_buffers_;
1287 };
1288
1289 SINGLE_AND_MULTI_THREAD_TEST_F(
1290     LayerTreeHostAnimationTestAddAnimationAfterAnimating);
1291
1292 }  // namespace
1293 }  // namespace cc