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331 lines
13 KiB
HTML
331 lines
13 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Tests for updating the finished state of an animation</title>
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<link rel="help" href="https://w3c.github.io/web-animations/#updating-the-finished-state">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="../../testcommon.js"></script>
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<body>
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<div id="log"></div>
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<script>
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'use strict';
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//
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// NOTE TO THE POOR PERSON WHO HAS TO MERGE THIS WITH THE TEST OF THE SAME
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// NAME FROM BLINK
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//
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// There is a pull request from Blink at:
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//
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// https://github.com/w3c/web-platform-tests/pull/3328
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//
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// which this file will surely conflict with.
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//
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// However, those tests cover a different part of the same algorithm. They
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// are mostly concerned with testing events and promises rather than the
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// timing part of the algorithm.
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//
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// The tests below cover the first part of the algorithm. So, please keep both
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// sets of tests and delete this comment. Preferably put the tests in this
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// file first.
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//
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// Thank you!
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//
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// CASE 1: playback rate > 0 and current time >= target effect end
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// (Also the start time is resolved and there is pending task)
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// Did seek = false
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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// Here and in the following tests we wait until ready resolves as
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// otherwise we don't have a resolved start time. We test the case
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// where the start time is unresolved in a subsequent test.
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return anim.ready.then(function() {
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// Seek to 1ms before the target end and wait a frame (> 16ms)
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anim.currentTime = 100 * MS_PER_SEC - 1;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 100 * MS_PER_SEC,
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'Hold time is set to target end clamping current time');
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});
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}, 'Updating the finished state when playing past end');
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// Did seek = true
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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return anim.ready.then(function() {
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anim.currentTime = 200 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 200 * MS_PER_SEC,
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'Hold time is set so current time should NOT change');
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});
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}, 'Updating the finished state when seeking past end');
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// Test current time == target end
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//
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// We can't really write a test for current time == target end with
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// did seek = false since that would imply setting up an animation where
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// the next animation frame time happens to exactly align with the target end.
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//
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// Fortunately, we don't need to test that case since even if the implementation
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// fails to set the hold time on such a tick, it should be mostly unobservable
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// (on the subsequent tick the hold time will be set to the same value anyway).
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// Did seek = true
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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return anim.ready.then(function() {
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anim.currentTime = 100 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 100 * MS_PER_SEC,
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'Hold time is set so current time should NOT change');
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});
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}, 'Updating the finished state when seeking exactly to end');
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// CASE 2: playback rate < 0 and current time <= 0
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// (Also the start time is resolved and there is pending task)
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// Did seek = false
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = -1;
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anim.play(); // Make sure animation is not initially finished
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return anim.ready.then(function() {
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// Seek to 1ms before 0 end and wait a frame (> 16ms)
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anim.currentTime = 1;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 0 * MS_PER_SEC,
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'Hold time is set to zero clamping current time');
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});
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}, 'Updating the finished state when playing in reverse past zero');
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// Did seek = true
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = -1;
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anim.play();
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return anim.ready.then(function() {
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anim.currentTime = -100 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, -100 * MS_PER_SEC,
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'Hold time is set so current time should NOT change');
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});
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}, 'Updating the finished state when seeking a reversed animation past zero');
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// As before, it's difficult to test current time == 0 for did seek = false but
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// it doesn't really matter.
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// Did seek = true
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = -1;
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anim.play();
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return anim.ready.then(function() {
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anim.currentTime = 0;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 0 * MS_PER_SEC,
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'Hold time is set so current time should NOT change');
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});
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}, 'Updating the finished state when seeking a reversed animation exactly'
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+ ' to zero');
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// CASE 3: playback rate > 0 and current time < target end OR
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// playback rate < 0 and current time > 0
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// (Also the start time is resolved and there is pending task)
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// Did seek = false; playback rate > 0
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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// We want to test that the hold time is cleared so first we need to
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// put the animation in a state where the hold time is set.
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anim.finish();
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return anim.ready.then(function() {
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assert_equals(anim.currentTime, 100 * MS_PER_SEC,
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'Hold time is initially set');
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// Then extend the duration so that the hold time is cleared and on
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// the next tick the current time will increase.
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anim.effect.timing.duration *= 2;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_greater_than(anim.currentTime, 100 * MS_PER_SEC,
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'Hold time is not set so current time should increase');
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});
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}, 'Updating the finished state when playing before end');
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// Did seek = true; playback rate > 0
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.finish();
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return anim.ready.then(function() {
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anim.currentTime = 50 * MS_PER_SEC;
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// When did seek = true, updating the finished state: (i) updates
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// the animation's start time and (ii) clears the hold time.
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// We can test both by checking that the currentTime is initially
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// updated and then increases.
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assert_equals(anim.currentTime, 50 * MS_PER_SEC, 'Start time is updated');
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_greater_than(anim.currentTime, 50 * MS_PER_SEC,
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'Hold time is not set so current time should increase');
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});
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}, 'Updating the finished state when seeking before end');
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// Did seek = false; playback rate < 0
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//
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// Unfortunately it is not possible to test this case. We need to have
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// a hold time set, a resolved start time, and then perform some
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// operation that updates the finished state with did seek set to true.
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//
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// However, the only situation where this could arrive is when we
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// replace the timeline and that procedure is likely to change. For all
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// other cases we either have an unresolved start time (e.g. when
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// paused), we don't have a set hold time (e.g. regular playback), or
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// the current time is zero (and anything that gets us out of that state
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// will set did seek = true).
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// Did seek = true; playback rate < 0
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = -1;
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return anim.ready.then(function() {
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(anim.currentTime, 50 * MS_PER_SEC, 'Start time is updated');
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_less_than(anim.currentTime, 50 * MS_PER_SEC,
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'Hold time is not set so current time should decrease');
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});
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}, 'Updating the finished state when seeking a reversed animation before end');
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// CASE 4: playback rate == 0
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// current time < 0
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = 0;
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return anim.ready.then(function() {
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anim.currentTime = -100 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, -100 * MS_PER_SEC,
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'Hold time should not be cleared so current time should'
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+ ' NOT change');
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});
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}, 'Updating the finished state when playback rate is zero and the'
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+ ' current time is less than zero');
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// current time < target end
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = 0;
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return anim.ready.then(function() {
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anim.currentTime = 50 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 50 * MS_PER_SEC,
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'Hold time should not be cleared so current time should'
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+ ' NOT change');
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});
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}, 'Updating the finished state when playback rate is zero and the'
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+ ' current time is less than end');
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// current time > target end
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.playbackRate = 0;
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return anim.ready.then(function() {
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anim.currentTime = 200 * MS_PER_SEC;
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return waitForAnimationFrames(1);
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}).then(function() {
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assert_equals(anim.currentTime, 200 * MS_PER_SEC,
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'Hold time should not be cleared so current time should'
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+ ' NOT change');
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});
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}, 'Updating the finished state when playback rate is zero and the'
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+ ' current time is greater than end');
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// CASE 5: current time unresolved
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.cancel();
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// Trigger a change that will cause the "update the finished state"
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// procedure to run.
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anim.effect.timing.duration = 200 * MS_PER_SEC;
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assert_equals(anim.currentTime, null,
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'The animation hold time / start time should not be updated');
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// The "update the finished state" procedure is supposed to run after any
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// change to timing, but just in case an implementation defers that, let's
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// wait a frame and check that the hold time / start time has still not been
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// updated.
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return waitForAnimationFrames(1).then(function() {
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assert_equals(anim.currentTime, null,
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'The animation hold time / start time should not be updated');
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});
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}, 'Updating the finished state when current time is unresolved');
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// CASE 6: has a pending task
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test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.cancel();
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anim.currentTime = 75 * MS_PER_SEC;
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anim.play();
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// We now have a pending task and a resolved current time.
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//
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// In the next step we will adjust the timing so that the current time
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// is greater than the target end. At this point the "update the finished
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// state" procedure should run and if we fail to check for a pending task
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// we will set the hold time to the target end, i.e. 50ms.
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anim.effect.timing.duration = 50 * MS_PER_SEC;
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assert_equals(anim.currentTime, 75 * MS_PER_SEC,
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'Hold time should not be updated');
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}, 'Updating the finished state when there is a pending task');
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// CASE 7: start time unresolved
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// Did seek = false
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promise_test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.cancel();
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// Make it so that only the start time is unresolved (to avoid overlapping
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// with the test case where current time is unresolved)
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anim.currentTime = 150 * MS_PER_SEC;
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// Trigger a change that will cause the "update the finished state"
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// procedure to run (did seek = false).
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anim.effect.timing.duration = 200 * MS_PER_SEC;
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return waitForAnimationFrames(1).then(function() {
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assert_equals(anim.currentTime, 150 * MS_PER_SEC,
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'The animation hold time should not be updated');
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assert_equals(anim.startTime, null,
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'The animation start time should not be updated');
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});
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}, 'Updating the finished state when start time is unresolved and'
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+ ' did seek = false');
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// Did seek = true
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test(function(t) {
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var anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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anim.cancel();
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anim.currentTime = 150 * MS_PER_SEC;
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// Trigger a change that will cause the "update the finished state"
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// procedure to run.
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(anim.currentTime, 50 * MS_PER_SEC,
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'The animation hold time should not be updated');
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assert_equals(anim.startTime, null,
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'The animation start time should not be updated');
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}, 'Updating the finished state when start time is unresolved and'
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+ ' did seek = true');
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</script>
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</body>
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