third_party/WebKit/Source/core/animation/AnimationEffectReadOnlyTest.cpp

/*
 * Copyright (c) 2013, Google Inc. All rights reserved.
 *
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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#include "core/animation/AnimationEffectReadOnly.h"

#include "core/animation/ComputedTimingProperties.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace blink {

class TestAnimationEffectEventDelegate
    : public AnimationEffectReadOnly::EventDelegate {
 public:
  void onEventCondition(const AnimationEffectReadOnly& animationNode) override {
    m_eventTriggered = true;
  }
  bool requiresIterationEvents(
      const AnimationEffectReadOnly& animationNode) override {
    return true;
  }
  void reset() { m_eventTriggered = false; }
  bool eventTriggered() { return m_eventTriggered; }

 private:
  bool m_eventTriggered;
};

class TestAnimationEffectReadOnly : public AnimationEffectReadOnly {
 public:
  static TestAnimationEffectReadOnly* create(const Timing& specified) {
    return new TestAnimationEffectReadOnly(
        specified, new TestAnimationEffectEventDelegate());
  }

  void updateInheritedTime(double time) {
    updateInheritedTime(time, TimingUpdateForAnimationFrame);
  }

  void updateInheritedTime(double time, TimingUpdateReason reason) {
    m_eventDelegate->reset();
    AnimationEffectReadOnly::updateInheritedTime(time, reason);
  }

  void updateChildrenAndEffects() const override {}
  void willDetach() {}
  TestAnimationEffectEventDelegate* eventDelegate() {
    return m_eventDelegate.get();
  }
  double calculateTimeToEffectChange(
      bool forwards,
      double localTime,
      double timeToNextIteration) const override {
    m_localTime = localTime;
    m_timeToNextIteration = timeToNextIteration;
    return -1;
  }
  double takeLocalTime() {
    const double result = m_localTime;
    m_localTime = nullValue();
    return result;
  }

  double takeTimeToNextIteration() {
    const double result = m_timeToNextIteration;
    m_timeToNextIteration = nullValue();
    return result;
  }

  DEFINE_INLINE_VIRTUAL_TRACE() {
    visitor->trace(m_eventDelegate);
    AnimationEffectReadOnly::trace(visitor);
  }

 private:
  TestAnimationEffectReadOnly(const Timing& specified,
                              TestAnimationEffectEventDelegate* eventDelegate)
      : AnimationEffectReadOnly(specified, eventDelegate),
        m_eventDelegate(eventDelegate) {}

  Member<TestAnimationEffectEventDelegate> m_eventDelegate;
  mutable double m_localTime;
  mutable double m_timeToNextIteration;
};

TEST(AnimationAnimationEffectReadOnlyTest, Sanity) {
  Timing timing;
  timing.iterationDuration = 2;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(2, animationNode->activeDurationInternal());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(2, animationNode->activeDurationInternal());
  EXPECT_EQ(0.5, animationNode->progress());

  animationNode->updateInheritedTime(2);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(2, animationNode->activeDurationInternal());
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(3);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(2, animationNode->activeDurationInternal());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, FillAuto) {
  Timing timing;
  timing.iterationDuration = 1;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(2);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, FillForwards) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(2);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, FillBackwards) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::BACKWARDS;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(2);
  EXPECT_TRUE(isNull(animationNode->progress()));
}

TEST(AnimationAnimationEffectReadOnlyTest, FillBoth) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::BOTH;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(2);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, StartDelay) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.startDelay = 0.5;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0.5);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1.5);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroIteration) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = 0;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, InfiniteIteration) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = std::numeric_limits<double>::infinity();
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, Iteration) {
  Timing timing;
  timing.iterationCount = 2;
  timing.iterationDuration = 2;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0.5, animationNode->progress());

  animationNode->updateInheritedTime(2);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(2);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(5);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, IterationStart) {
  Timing timing;
  timing.iterationStart = 1.2;
  timing.iterationCount = 2.2;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::BOTH;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_NEAR(0.2, animationNode->progress(), 0.000000000000001);

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_NEAR(0.2, animationNode->progress(), 0.000000000000001);

  animationNode->updateInheritedTime(10);
  EXPECT_EQ(3, animationNode->currentIteration());
  EXPECT_NEAR(0.4, animationNode->progress(), 0.000000000000001);
}

TEST(AnimationAnimationEffectReadOnlyTest, IterationAlternate) {
  Timing timing;
  timing.iterationCount = 10;
  timing.iterationDuration = 1;
  timing.direction = Timing::PlaybackDirection::ALTERNATE_NORMAL;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0.75);
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0.75, animationNode->progress());

  animationNode->updateInheritedTime(1.75);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0.25, animationNode->progress());

  animationNode->updateInheritedTime(2.75);
  EXPECT_EQ(2, animationNode->currentIteration());
  EXPECT_EQ(0.75, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, IterationAlternateReverse) {
  Timing timing;
  timing.iterationCount = 10;
  timing.iterationDuration = 1;
  timing.direction = Timing::PlaybackDirection::ALTERNATE_REVERSE;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0.75);
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0.25, animationNode->progress());

  animationNode->updateInheritedTime(1.75);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0.75, animationNode->progress());

  animationNode->updateInheritedTime(2.75);
  EXPECT_EQ(2, animationNode->currentIteration());
  EXPECT_EQ(0.25, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationSanity) {
  Timing timing;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationFillForwards) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationFillBackwards) {
  Timing timing;
  timing.fillMode = Timing::FillMode::BACKWARDS;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(0);
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(1);
  EXPECT_TRUE(isNull(animationNode->progress()));
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationFillBoth) {
  Timing timing;
  timing.fillMode = Timing::FillMode::BOTH;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationStartDelay) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.startDelay = 0.5;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0.5);
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1.5);
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationIterationStartAndCount) {
  Timing timing;
  timing.iterationStart = 0.1;
  timing.iterationCount = 0.2;
  timing.fillMode = Timing::FillMode::BOTH;
  timing.startDelay = 0.3;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0.1, animationNode->progress());

  animationNode->updateInheritedTime(0.3);
  EXPECT_DOUBLE_EQ(0.3, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_DOUBLE_EQ(0.3, animationNode->progress());
}

// FIXME: Needs specification work.
TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationInfiniteIteration) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = std::numeric_limits<double>::infinity();
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationIteration) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = 2;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationIterationStart) {
  Timing timing;
  timing.iterationStart = 1.2;
  timing.iterationCount = 2.2;
  timing.fillMode = Timing::FillMode::BOTH;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_NEAR(0.2, animationNode->progress(), 0.000000000000001);

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(3, animationNode->currentIteration());
  EXPECT_NEAR(0.4, animationNode->progress(), 0.000000000000001);

  animationNode->updateInheritedTime(10);
  EXPECT_EQ(3, animationNode->currentIteration());
  EXPECT_NEAR(0.4, animationNode->progress(), 0.000000000000001);
}

TEST(AnimationAnimationEffectReadOnlyTest, ZeroDurationIterationAlternate) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = 2;
  timing.direction = Timing::PlaybackDirection::ALTERNATE_NORMAL;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest,
     ZeroDurationIterationAlternateReverse) {
  Timing timing;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = 2;
  timing.direction = Timing::PlaybackDirection::ALTERNATE_REVERSE;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(-1);
  EXPECT_TRUE(isNull(animationNode->currentIteration()));
  EXPECT_TRUE(isNull(animationNode->progress()));

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());

  animationNode->updateInheritedTime(1);
  EXPECT_EQ(1, animationNode->currentIteration());
  EXPECT_EQ(1, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, InfiniteDurationSanity) {
  Timing timing;
  timing.iterationDuration = std::numeric_limits<double>::infinity();
  timing.iterationCount = 1;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

// FIXME: Needs specification work.
TEST(AnimationAnimationEffectReadOnlyTest, InfiniteDurationZeroIterations) {
  Timing timing;
  timing.iterationDuration = std::numeric_limits<double>::infinity();
  timing.iterationCount = 0;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(0, animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);

  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, InfiniteDurationInfiniteIterations) {
  Timing timing;
  timing.iterationDuration = std::numeric_limits<double>::infinity();
  timing.iterationCount = std::numeric_limits<double>::infinity();
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(1);

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, InfiniteDurationZeroPlaybackRate) {
  Timing timing;
  timing.iterationDuration = std::numeric_limits<double>::infinity();
  timing.playbackRate = 0;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_TRUE(animationNode->isInPlay());
  EXPECT_TRUE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());

  animationNode->updateInheritedTime(std::numeric_limits<double>::infinity());

  EXPECT_EQ(std::numeric_limits<double>::infinity(),
            animationNode->activeDurationInternal());
  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_FALSE(animationNode->isInPlay());
  EXPECT_FALSE(animationNode->isCurrent());
  EXPECT_TRUE(animationNode->isInEffect());
  EXPECT_EQ(0, animationNode->currentIteration());
  EXPECT_EQ(0, animationNode->progress());
}

TEST(AnimationAnimationEffectReadOnlyTest, EndTime) {
  Timing timing;
  timing.startDelay = 1;
  timing.endDelay = 2;
  timing.iterationDuration = 4;
  timing.iterationCount = 2;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);
  EXPECT_EQ(11, animationNode->endTimeInternal());
}

TEST(AnimationAnimationEffectReadOnlyTest, Events) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationCount = 2;
  timing.startDelay = 1;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0.0, TimingUpdateOnDemand);
  EXPECT_FALSE(animationNode->eventDelegate()->eventTriggered());

  animationNode->updateInheritedTime(0.0, TimingUpdateForAnimationFrame);
  EXPECT_TRUE(animationNode->eventDelegate()->eventTriggered());

  animationNode->updateInheritedTime(1.5, TimingUpdateOnDemand);
  EXPECT_FALSE(animationNode->eventDelegate()->eventTriggered());

  animationNode->updateInheritedTime(1.5, TimingUpdateForAnimationFrame);
  EXPECT_TRUE(animationNode->eventDelegate()->eventTriggered());
}

TEST(AnimationAnimationEffectReadOnlyTest, TimeToEffectChange) {
  Timing timing;
  timing.iterationDuration = 1;
  timing.fillMode = Timing::FillMode::FORWARDS;
  timing.iterationStart = 0.2;
  timing.iterationCount = 2.5;
  timing.startDelay = 1;
  timing.direction = Timing::PlaybackDirection::ALTERNATE_NORMAL;
  TestAnimationEffectReadOnly* animationNode =
      TestAnimationEffectReadOnly::create(timing);

  animationNode->updateInheritedTime(0);
  EXPECT_EQ(0, animationNode->takeLocalTime());
  EXPECT_TRUE(std::isinf(animationNode->takeTimeToNextIteration()));

  // Normal iteration.
  animationNode->updateInheritedTime(1.75);
  EXPECT_EQ(1.75, animationNode->takeLocalTime());
  EXPECT_NEAR(0.05, animationNode->takeTimeToNextIteration(),
              0.000000000000001);

  // Reverse iteration.
  animationNode->updateInheritedTime(2.75);
  EXPECT_EQ(2.75, animationNode->takeLocalTime());
  EXPECT_NEAR(0.05, animationNode->takeTimeToNextIteration(),
              0.000000000000001);

  // Item ends before iteration finishes.
  animationNode->updateInheritedTime(3.4);
  EXPECT_EQ(AnimationEffectReadOnly::PhaseActive, animationNode->getPhase());
  EXPECT_EQ(3.4, animationNode->takeLocalTime());
  EXPECT_TRUE(std::isinf(animationNode->takeTimeToNextIteration()));

  // Item has finished.
  animationNode->updateInheritedTime(3.5);
  EXPECT_EQ(AnimationEffectReadOnly::PhaseAfter, animationNode->getPhase());
  EXPECT_EQ(3.5, animationNode->takeLocalTime());
  EXPECT_TRUE(std::isinf(animationNode->takeTimeToNextIteration()));
}

}  // namespace blink