Source/core/animation/AnimationPlayerTest.cpp

/*
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#include "config.h"
#include "core/animation/AnimationPlayer.h"

#include "core/animation/ActiveAnimations.h"
#include "core/animation/Animation.h"
#include "core/animation/AnimationClock.h"
#include "core/animation/DocumentTimeline.h"
#include "core/dom/Document.h"
#include "core/dom/QualifiedName.h"
#include "platform/weborigin/KURL.h"
#include <gtest/gtest.h>

using namespace WebCore;

namespace {

class AnimationAnimationPlayerTest : public ::testing::Test {
protected:
    virtual void SetUp()
    {
        setUpWithoutStartingTimeline();
        startTimeline();
    }

    void setUpWithoutStartingTimeline()
    {
        document = Document::create();
        document->animationClock().resetTimeForTesting();
        timeline = DocumentTimeline::create(document.get());
        player = timeline->createAnimationPlayer(0);
        player->setStartTime(0);
        player->setSource(makeAnimation().get());
    }

    void startTimeline()
    {
        timeline->setZeroTime(0);
        updateTimeline(0);
    }

    PassRefPtr<Animation> makeAnimation(double duration = 30, double playbackRate = 1)
    {
        Timing timing;
        timing.iterationDuration = duration;
        timing.playbackRate = playbackRate;
        return Animation::create(nullptr, nullptr, timing);
    }

    bool updateTimeline(double time)
    {
        document->animationClock().updateTime(time);
        // The timeline does not know about our player, so we have to explicitly call update().
        return player->update();
    }

    RefPtr<Document> document;
    RefPtr<DocumentTimeline> timeline;
    RefPtr<AnimationPlayer> player;
    TrackExceptionState exceptionState;
};

TEST_F(AnimationAnimationPlayerTest, InitialState)
{
    setUpWithoutStartingTimeline();
    player = timeline->createAnimationPlayer(0);
    EXPECT_TRUE(isNull(timeline->currentTime()));
    EXPECT_EQ(0, player->currentTime());
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(1, player->playbackRate());
    EXPECT_EQ(0, player->timeLag());
    EXPECT_FALSE(player->hasStartTime());
    EXPECT_TRUE(isNull(player->startTime()));

    startTimeline();
    player->setStartTime(0);
    EXPECT_EQ(0, timeline->currentTime());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(1, player->playbackRate());
    EXPECT_EQ(0, player->startTime());
    EXPECT_EQ(0, player->timeLag());
    EXPECT_TRUE(player->hasStartTime());
}


TEST_F(AnimationAnimationPlayerTest, CurrentTimeDoesNotSetOutdated)
{
    EXPECT_FALSE(player->outdated());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_FALSE(player->outdated());
    // FIXME: We should split updateTimeline into a version that doesn't update
    // the player and one that does, as most of the tests don't require update()
    // to be called.
    document->animationClock().updateTime(10);
    EXPECT_EQ(10, player->currentTime());
    EXPECT_FALSE(player->outdated());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTime)
{
    player->setCurrentTime(10);
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(10);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimeNegative)
{
    player->setCurrentTime(-10);
    EXPECT_EQ(-10, player->currentTime());
    updateTimeline(20);
    EXPECT_EQ(10, player->currentTime());

    player->setPlaybackRate(-2);
    player->setCurrentTime(-10);
    EXPECT_EQ(-10, player->currentTime());
    updateTimeline(40);
    EXPECT_EQ(-10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimePastContentEnd)
{
    player->setCurrentTime(50);
    EXPECT_EQ(50, player->currentTime());
    updateTimeline(20);
    EXPECT_EQ(50, player->currentTime());

    player->setPlaybackRate(-2);
    player->setCurrentTime(50);
    EXPECT_EQ(50, player->currentTime());
    updateTimeline(40);
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimeBeforeTimelineStarted)
{
    setUpWithoutStartingTimeline();
    player->setCurrentTime(5);
    EXPECT_EQ(5, player->currentTime());
    startTimeline();
    updateTimeline(10);
    EXPECT_EQ(15, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimePastContentEndBeforeTimelineStarted)
{
    setUpWithoutStartingTimeline();
    player->setCurrentTime(250);
    EXPECT_EQ(250, player->currentTime());
    startTimeline();
    updateTimeline(10);
    EXPECT_EQ(250, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimeMax)
{
    player->setCurrentTime(std::numeric_limits<double>::max());
    EXPECT_EQ(std::numeric_limits<double>::max(), player->currentTime());
    updateTimeline(100);
    EXPECT_EQ(std::numeric_limits<double>::max(), player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimeUnrestrictedDouble)
{
    updateTimeline(10);
    player->setCurrentTime(nullValue());
    EXPECT_EQ(10, player->currentTime());
    player->setCurrentTime(std::numeric_limits<double>::infinity());
    EXPECT_EQ(10, player->currentTime());
    player->setCurrentTime(-std::numeric_limits<double>::infinity());
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetCurrentTimeBeforeStartTimeSet)
{
    player = timeline->createAnimationPlayer(0);
    player->setSource(makeAnimation().get());
    player->setCurrentTime(20);
    EXPECT_EQ(20, player->currentTime());
    updateTimeline(5);
    EXPECT_EQ(20, player->currentTime());
    player->setStartTime(10);
    EXPECT_EQ(15, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, TimeLag)
{
    player->setCurrentTime(10);
    EXPECT_EQ(-10, player->timeLag());
    updateTimeline(10);
    EXPECT_EQ(-10, player->timeLag());
    player->setCurrentTime(40);
    EXPECT_EQ(-30, player->timeLag());
    updateTimeline(20);
    EXPECT_EQ(-20, player->timeLag());
}


TEST_F(AnimationAnimationPlayerTest, SetStartTime)
{
    updateTimeline(20);
    EXPECT_EQ(0, player->startTime());
    EXPECT_EQ(20, player->currentTime());
    player->setStartTime(10);
    EXPECT_EQ(10, player->startTime());
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(30);
    EXPECT_EQ(10, player->startTime());
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetStartTimeLimitsAnimationPlayer)
{
    player->setStartTime(-50);
    EXPECT_EQ(30, player->currentTime());
    player->setPlaybackRate(-1);
    player->setStartTime(-100);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_TRUE(player->finished());
}

TEST_F(AnimationAnimationPlayerTest, SetStartTimeOnLimitedAnimationPlayer)
{
    updateTimeline(30);
    player->setStartTime(-10);
    EXPECT_EQ(30, player->currentTime());
    player->setCurrentTime(50);
    player->setStartTime(-40);
    EXPECT_EQ(50, player->currentTime());
    EXPECT_TRUE(player->finished());
}

TEST_F(AnimationAnimationPlayerTest, SetStartTimeWhilePaused)
{
    updateTimeline(10);
    player->pause();
    player->setStartTime(-40);
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(50);
    player->setStartTime(60);
    EXPECT_EQ(10, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, PausePlay)
{
    updateTimeline(10);
    player->pause();
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(20);
    player->play();
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(30);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, PauseBeforeTimelineStarted)
{
    setUpWithoutStartingTimeline();
    player->pause();
    EXPECT_TRUE(player->paused());
    player->play();
    EXPECT_FALSE(player->paused());

    player->pause();
    startTimeline();
    updateTimeline(100);
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(0, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, PauseBeforeStartTimeSet)
{
    player = timeline->createAnimationPlayer(0);
    player->setSource(makeAnimation().get());
    updateTimeline(100);
    player->pause();
    updateTimeline(200);
    EXPECT_EQ(0, player->currentTime());

    player->setStartTime(150);
    player->play();
    EXPECT_EQ(0, player->currentTime());
    updateTimeline(220);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, PlayRewindsToStart)
{
    player->setCurrentTime(30);
    player->play();
    EXPECT_EQ(0, player->currentTime());

    player->setCurrentTime(40);
    player->play();
    EXPECT_EQ(0, player->currentTime());

    player->setCurrentTime(-10);
    player->play();
    EXPECT_EQ(0, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, PlayRewindsToEnd)
{
    player->setPlaybackRate(-1);
    player->play();
    EXPECT_EQ(30, player->currentTime());

    player->setCurrentTime(40);
    player->play();
    EXPECT_EQ(30, player->currentTime());

    player->setCurrentTime(-10);
    player->play();
    EXPECT_EQ(30, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, PlayWithPlaybackRateZeroDoesNotSeek)
{
    player->setPlaybackRate(0);
    player->play();
    EXPECT_EQ(0, player->currentTime());

    player->setCurrentTime(40);
    player->play();
    EXPECT_EQ(40, player->currentTime());

    player->setCurrentTime(-10);
    player->play();
    EXPECT_EQ(-10, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, Reverse)
{
    player->setCurrentTime(10);
    player->pause();
    player->reverse();
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(-1, player->playbackRate());
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, ReverseDoesNothingWithPlaybackRateZero)
{
    player->setCurrentTime(10);
    player->setPlaybackRate(0);
    player->pause();
    player->reverse();
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(0, player->playbackRate());
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, ReverseDoesNotSeekWithNoSource)
{
    player->setSource(0);
    player->setCurrentTime(10);
    player->reverse();
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, ReverseSeeksToStart)
{
    player->setCurrentTime(-10);
    player->setPlaybackRate(-1);
    player->reverse();
    EXPECT_EQ(0, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, ReverseSeeksToEnd)
{
    player->setCurrentTime(40);
    player->reverse();
    EXPECT_EQ(30, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, ReverseLimitsAnimationPlayer)
{
    player->setCurrentTime(40);
    player->setPlaybackRate(-1);
    player->reverse();
    EXPECT_TRUE(player->finished());
    EXPECT_EQ(40, player->currentTime());

    player->setCurrentTime(-10);
    player->reverse();
    EXPECT_TRUE(player->finished());
    EXPECT_EQ(-10, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, Finish)
{
    player->finish(exceptionState);
    EXPECT_EQ(30, player->currentTime());
    EXPECT_TRUE(player->finished());

    player->setPlaybackRate(-1);
    player->finish(exceptionState);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_TRUE(player->finished());

    EXPECT_FALSE(exceptionState.hadException());
}

TEST_F(AnimationAnimationPlayerTest, FinishAfterSourceEnd)
{
    player->setCurrentTime(40);
    player->finish(exceptionState);
    EXPECT_EQ(30, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, FinishBeforeStart)
{
    player->setCurrentTime(-10);
    player->setPlaybackRate(-1);
    player->finish(exceptionState);
    EXPECT_EQ(0, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, FinishDoesNothingWithPlaybackRateZero)
{
    player->setCurrentTime(10);
    player->setPlaybackRate(0);
    player->finish(exceptionState);
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, FinishRaisesException)
{
    Timing timing;
    timing.iterationDuration = 1;
    timing.iterationCount = std::numeric_limits<double>::infinity();
    player->setSource(Animation::create(nullptr, nullptr, timing).get());
    player->setCurrentTime(10);

    player->finish(exceptionState);
    EXPECT_EQ(10, player->currentTime());
    EXPECT_TRUE(exceptionState.hadException());
    EXPECT_EQ(InvalidStateError, exceptionState.code());
}


TEST_F(AnimationAnimationPlayerTest, LimitingAtSourceEnd)
{
    updateTimeline(30);
    EXPECT_EQ(30, player->currentTime());
    EXPECT_TRUE(player->finished());
    updateTimeline(40);
    EXPECT_EQ(30, player->currentTime());
    EXPECT_FALSE(player->paused());
}

TEST_F(AnimationAnimationPlayerTest, LimitingAtStart)
{
    updateTimeline(30);
    player->setPlaybackRate(-2);
    updateTimeline(45);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_TRUE(player->finished());
    updateTimeline(60);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_FALSE(player->paused());
}

TEST_F(AnimationAnimationPlayerTest, LimitingWithNoSource)
{
    player->setSource(0);
    EXPECT_TRUE(player->finished());
    updateTimeline(30);
    EXPECT_EQ(0, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, SetPlaybackRate)
{
    player->setPlaybackRate(2);
    EXPECT_EQ(2, player->playbackRate());
    EXPECT_EQ(0, player->currentTime());
    updateTimeline(10);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetPlaybackRateBeforeTimelineStarted)
{
    setUpWithoutStartingTimeline();
    player->setPlaybackRate(2);
    EXPECT_EQ(2, player->playbackRate());
    EXPECT_EQ(0, player->currentTime());
    startTimeline();
    updateTimeline(10);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetPlaybackRateWhilePaused)
{
    updateTimeline(10);
    player->pause();
    player->setPlaybackRate(2);
    updateTimeline(20);
    player->play();
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(25);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetPlaybackRateWhileLimited)
{
    updateTimeline(40);
    EXPECT_EQ(30, player->currentTime());
    player->setPlaybackRate(2);
    updateTimeline(50);
    EXPECT_EQ(30, player->currentTime());
    player->setPlaybackRate(-2);
    EXPECT_FALSE(player->finished());
    updateTimeline(60);
    EXPECT_EQ(10, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetPlaybackRateZero)
{
    updateTimeline(10);
    player->setPlaybackRate(0);
    EXPECT_EQ(10, player->currentTime());
    updateTimeline(20);
    EXPECT_EQ(10, player->currentTime());
    player->setCurrentTime(20);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetPlaybackRateMax)
{
    player->setPlaybackRate(std::numeric_limits<double>::max());
    EXPECT_EQ(std::numeric_limits<double>::max(), player->playbackRate());
    EXPECT_EQ(0, player->currentTime());
    updateTimeline(1);
    EXPECT_EQ(30, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, SetSource)
{
    player = timeline->createAnimationPlayer(0);
    player->setStartTime(0);
    RefPtr<TimedItem> source1 = makeAnimation();
    RefPtr<TimedItem> source2 = makeAnimation();
    player->setSource(source1.get());
    EXPECT_EQ(source1, player->source());
    EXPECT_EQ(0, player->currentTime());
    player->setCurrentTime(15);
    player->setSource(source2.get());
    EXPECT_EQ(15, player->currentTime());
    EXPECT_EQ(0, source1->player());
    EXPECT_EQ(player.get(), source2->player());
    EXPECT_EQ(source2, player->source());
}

TEST_F(AnimationAnimationPlayerTest, SetSourceLimitsAnimationPlayer)
{
    player->setCurrentTime(20);
    player->setSource(makeAnimation(10).get());
    EXPECT_EQ(20, player->currentTime());
    EXPECT_TRUE(player->finished());
    updateTimeline(10);
    EXPECT_EQ(20, player->currentTime());
}

TEST_F(AnimationAnimationPlayerTest, SetSourceUnlimitsAnimationPlayer)
{
    player->setCurrentTime(40);
    player->setSource(makeAnimation(60).get());
    EXPECT_FALSE(player->finished());
    EXPECT_EQ(40, player->currentTime());
    updateTimeline(10);
    EXPECT_EQ(50, player->currentTime());
}


TEST_F(AnimationAnimationPlayerTest, EmptyAnimationPlayersDontUpdateEffects)
{
    player = timeline->createAnimationPlayer(0);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->timeToEffectChange());

    updateTimeline(1234);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->timeToEffectChange());
}

TEST_F(AnimationAnimationPlayerTest, AnimationPlayersDisassociateFromSource)
{
    TimedItem* timedItem = player->source();
    AnimationPlayer* player2 = timeline->createAnimationPlayer(timedItem);
    EXPECT_EQ(0, player->source());
    player->setSource(timedItem);
    EXPECT_EQ(0, player2->source());
}

TEST_F(AnimationAnimationPlayerTest, AnimationPlayersReturnTimeToNextEffect)
{
    Timing timing;
    timing.startDelay = 1;
    timing.iterationDuration = 1;
    timing.endDelay = 1;
    RefPtr<Animation> animation = Animation::create(nullptr, nullptr, timing);
    player = timeline->createAnimationPlayer(animation.get());
    player->setStartTime(0);

    updateTimeline(0);
    EXPECT_EQ(1, player->timeToEffectChange());

    updateTimeline(0.5);
    EXPECT_EQ(0.5, player->timeToEffectChange());

    updateTimeline(1);
    EXPECT_EQ(0, player->timeToEffectChange());

    updateTimeline(1.5);
    EXPECT_EQ(0, player->timeToEffectChange());

    updateTimeline(2);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->timeToEffectChange());

    updateTimeline(3);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->timeToEffectChange());

    player->setCurrentTime(0);
    player->update();
    EXPECT_EQ(1, player->timeToEffectChange());

    player->setPlaybackRate(2);
    player->update();
    EXPECT_EQ(0.5, player->timeToEffectChange());

    player->setPlaybackRate(0);
    player->update();
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->timeToEffectChange());

    player->setCurrentTime(3);
    player->setPlaybackRate(-1);
    player->update();
    EXPECT_EQ(1, player->timeToEffectChange());

    player->setPlaybackRate(-2);
    player->update();
    EXPECT_EQ(0.5, player->timeToEffectChange());
}

TEST_F(AnimationAnimationPlayerTest, AttachedAnimationPlayers)
{
    RefPtr<Element> element = document->createElement("foo", ASSERT_NO_EXCEPTION);

    Timing timing;
    RefPtr<Animation> animation = Animation::create(element, nullptr, timing);
    RefPtr<AnimationPlayer> player = timeline->createAnimationPlayer(animation.get());
    timeline->serviceAnimations();
    EXPECT_EQ(1U, element->activeAnimations()->players().find(player.get())->value);

    player.release();
    EXPECT_TRUE(element->activeAnimations()->players().isEmpty());
}

TEST_F(AnimationAnimationPlayerTest, HasLowerPriority)
{
    // Note that start time defaults to null
    RefPtr<AnimationPlayer> player1 = timeline->createAnimationPlayer(0);
    RefPtr<AnimationPlayer> player2 = timeline->createAnimationPlayer(0);
    player2->setStartTime(10);
    RefPtr<AnimationPlayer> player3 = timeline->createAnimationPlayer(0);
    RefPtr<AnimationPlayer> player4 = timeline->createAnimationPlayer(0);
    player4->setStartTime(20);
    RefPtr<AnimationPlayer> player5 = timeline->createAnimationPlayer(0);
    player5->setStartTime(10);
    RefPtr<AnimationPlayer> player6 = timeline->createAnimationPlayer(0);
    player6->setStartTime(-10);
    Vector<RefPtr<AnimationPlayer> > players;
    players.append(player1);
    players.append(player3);
    players.append(player6);
    players.append(player2);
    players.append(player5);
    players.append(player4);
    for (size_t i = 0; i < players.size(); i++) {
        for (size_t j = 0; j < players.size(); j++)
            EXPECT_EQ(i < j, AnimationPlayer::hasLowerPriority(players[i].get(), players[j].get()));
    }
}

}