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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Effect-level easing tests</title>
+<link rel="help" href="http://w3c.github.io/web-animations/#calculating-the-transformed-time">
+<link rel="author" title="Hiroyuki Ikezoe" href="mailto:hiikezoe@mozilla-japan.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../../testcommon.js"></script>
+<script src="../../resources/effect-easing-tests.js"></script>
+<body>
+<div id="log"></div>
+<div id="target"></div>
+<script>
+"use strict";
+
+function assert_style_left_at(animation, time, easingFunction) {
+ animation.currentTime = time;
+ var portion = time / animation.effect.timing.duration;
+ assert_approx_equals(pxToNum(getComputedStyle(animation.effect.target).left),
+ easingFunction(portion) * 100,
+ 0.01,
+ 'The left of the animation should be approximately ' +
+ easingFunction(portion) * 100 + ' at ' + time + 'ms');
+}
+
+gEffectEasingTests.forEach(function(options) {
+ test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate([ { left: '0px' }, { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: options.easing });
+ var easing = options.easingFunction;
+
+ anim.pause();
+
+ assert_style_left_at(anim, 0, easing);
+ assert_style_left_at(anim, 250, easing);
+ assert_style_left_at(anim, 500, easing);
+ assert_style_left_at(anim, 750, easing);
+ assert_style_left_at(anim, 1000, easing);
+ }, options.desc);
+});
+
+var gEffectEasingTestsWithKeyframeEasing = [
+ {
+ desc: 'effect easing produces values greater than 1 with keyframe ' +
+ 'easing cubic-bezier(0, 0, 0, 0)',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)',
+ keyframeEasing: 'cubic-bezier(0, 0, 0, 0)', // linear
+ easingFunction: cubicBezier(0, 1.5, 1, 1.5)
+ },
+ {
+ desc: 'effect easing produces values greater than 1 with keyframe ' +
+ 'easing cubic-bezier(1, 1, 1, 1)',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)',
+ keyframeEasing: 'cubic-bezier(1, 1, 1, 1)', // linear
+ easingFunction: cubicBezier(0, 1.5, 1, 1.5)
+ },
+ {
+ desc: 'effect easing produces negative values 1 with keyframe ' +
+ 'easing cubic-bezier(0, 0, 0, 0)',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)',
+ keyframeEasing: 'cubic-bezier(0, 0, 0, 0)', // linear
+ easingFunction: cubicBezier(0, -0.5, 1, -0.5)
+ },
+ {
+ desc: 'effect easing produces negative values 1 with keyframe ' +
+ 'easing cubic-bezier(1, 1, 1, 1)',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)',
+ keyframeEasing: 'cubic-bezier(1, 1, 1, 1)', // linear
+ easingFunction: cubicBezier(0, -0.5, 1, -0.5)
+ },
+];
+
+gEffectEasingTestsWithKeyframeEasing.forEach(function(options) {
+ test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate(
+ [ { left: '0px', easing: options.keyframeEasing },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: options.easing });
+ var easing = options.easingFunction;
+
+ anim.pause();
+
+ assert_style_left_at(anim, 0, easing);
+ assert_style_left_at(anim, 250, easing);
+ assert_style_left_at(anim, 500, easing);
+ assert_style_left_at(anim, 750, easing);
+ assert_style_left_at(anim, 1000, easing);
+ }, options.desc);
+});
+
+// Other test cases that effect easing produces values outside of [0,1].
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate([ { left: '0px', easing: 'step-start' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)' });
+ anim.pause();
+
+ // The bezier function produces values greater than 1 in (0.23368794, 1)
+ anim.currentTime = 0;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 230;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 250;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 1000;
+ assert_equals(getComputedStyle(target).left, '100px');
+}, 'effect easing produces values greater than 1 with step-start keyframe');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate([ { left: '0px', easing: 'step-end' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)' });
+ anim.pause();
+
+ // The bezier function produces values greater than 1 in (0.23368794, 1)
+ anim.currentTime = 0;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 230;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 250;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 1000;
+ assert_equals(getComputedStyle(target).left, '100px');
+}, 'effect easing produces values greater than 1 with step-end keyframe');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate([ { left: '0px', easing: 'step-start' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)' });
+ anim.pause();
+
+ // The bezier function produces negative values in (0, 0.766312060)
+ anim.currentTime = 0;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 750;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 800;
+ assert_equals(getComputedStyle(target).left, '100px');
+ anim.currentTime = 1000;
+ assert_equals(getComputedStyle(target).left, '100px');
+}, 'effect easing produces negative values with step-start keyframe');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate([ { left: '0px', easing: 'step-end' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)' });
+ anim.pause();
+
+ // The bezier function produces negative values in (0, 0.766312060)
+ anim.currentTime = 0;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 750;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 800;
+ assert_equals(getComputedStyle(target).left, '0px');
+ anim.currentTime = 1000;
+ assert_equals(getComputedStyle(target).left, '100px');
+}, 'effect easing produces negative values with step-end keyframe');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate(
+ // http://cubic-bezier.com/#.5,1,.5,0
+ [ { left: '0px', easing: 'cubic-bezier(0.5, 1, 0.5, 0)' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)' });
+ var keyframeEasing = function(x) {
+ assert_greater_than_equal(x, 0.0,
+ 'This function should be called in [0, 1.0] range');
+ assert_less_than_equal(x, 1.0,
+ 'This function should be called in [0, 1.0] range');
+ return cubicBezier(0.5, 1, 0.5, 0)(x);
+ }
+ var keyframeEasingExtrapolated = function(x) {
+ assert_greater_than(x, 1.0,
+ 'This function should be called in (1.0, infinity) range');
+ // p3x + (p2y - p3y) / (p2x - p3x) * (x - p3x)
+ return 1.0 + (0 - 1) / (0.5 - 1) * (x - 1.0);
+ }
+ var effectEasing = function(x) {
+ return cubicBezier(0, 1.5, 1, 1.5)(x);
+ }
+
+ anim.pause();
+
+ // The effect-easing produces values greater than 1 in (0.23368794, 1)
+ assert_style_left_at(anim, 0, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+ assert_style_left_at(anim, 230, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+ assert_style_left_at(anim, 240, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ // Near the extreme point of the effect-easing function
+ assert_style_left_at(anim, 700, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ assert_style_left_at(anim, 990, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ assert_style_left_at(anim, 1000, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+}, 'effect easing produces values greater than 1 with keyframe easing ' +
+ 'producing values greater than 1');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate(
+ // http://cubic-bezier.com/#0,1.5,1,1.5
+ [ { left: '0px', easing: 'cubic-bezier(0, 1.5, 1, 1.5)' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, 1.5, 1, 1.5)' });
+ var easing = function(x) {
+ assert_greater_than_equal(x, 0.0,
+ 'This function should be called in [0, 1.0] range');
+ assert_less_than_equal(x, 1.0,
+ 'This function should be called in [0, 1.0] range');
+ return cubicBezier(0, 1.5, 1, 1.5)(x);
+ }
+ var easingExtrapolated = function(x) {
+ assert_greater_than(x, 1.0,
+ 'This function should be called in negative range');
+ // For cubic-bezier(0, 1.5, 1, 1.5), the tangent at the
+ // endpoint (x = 1.0) is infinity so we should just return 1.0.
+ return 1.0;
+ }
+
+ anim.pause();
+
+ // The effect-easing produces values greater than 1 in (0.23368794, 1)
+ assert_style_left_at(anim, 0, function(x) {
+ return easing(easing(x))
+ });
+ assert_style_left_at(anim, 230, function(x) {
+ return easing(easing(x))
+ });
+ assert_style_left_at(anim, 240, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ // Near the extreme point of the effect-easing function
+ assert_style_left_at(anim, 700, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ assert_style_left_at(anim, 990, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ assert_style_left_at(anim, 1000, function(x) {
+ return easing(easing(x))
+ });
+}, 'effect easing which produces values greater than 1 and the tangent on ' +
+ 'the upper boundary is infinity with keyframe easing producing values ' +
+ 'greater than 1');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate(
+ // http://cubic-bezier.com/#.5,1,.5,0
+ [ { left: '0px', easing: 'cubic-bezier(0.5, 1, 0.5, 0)' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)' });
+ var keyframeEasing = function(x) {
+ assert_greater_than_equal(x, 0.0,
+ 'This function should be called in [0, 1.0] range');
+ assert_less_than_equal(x, 1.0,
+ 'This function should be called in [0, 1.0] range');
+ return cubicBezier(0.5, 1, 0.5, 0)(x);
+ }
+ var keyframeEasingExtrapolated = function(x) {
+ assert_less_than(x, 0.0,
+ 'This function should be called in negative range');
+ // p0x + (p1y - p0y) / (p1x - p0x) * (x - p0x)
+ return (1 / 0.5) * x;
+ }
+ var effectEasing = function(x) {
+ return cubicBezier(0, -0.5, 1, -0.5)(x);
+ }
+
+ anim.pause();
+
+ // The effect-easing produces negative values in (0, 0.766312060)
+ assert_style_left_at(anim, 0, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+ assert_style_left_at(anim, 10, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ // Near the extreme point of the effect-easing function
+ assert_style_left_at(anim, 300, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ assert_style_left_at(anim, 750, function(x) {
+ return keyframeEasingExtrapolated(effectEasing(x));
+ });
+ assert_style_left_at(anim, 770, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+ assert_style_left_at(anim, 1000, function(x) {
+ return keyframeEasing(effectEasing(x));
+ });
+}, 'effect easing produces negative values with keyframe easing ' +
+ 'producing negative values');
+
+test(function(t) {
+ var target = createDiv(t);
+ target.style.position = 'absolute';
+ var anim = target.animate(
+ // http://cubic-bezier.com/#0,-0.5,1,-0.5
+ [ { left: '0px', easing: 'cubic-bezier(0, -0.5, 1, -0.5)' },
+ { left: '100px' } ],
+ { duration: 1000,
+ fill: 'forwards',
+ easing: 'cubic-bezier(0, -0.5, 1, -0.5)' });
+ var easing = function(x) {
+ assert_greater_than_equal(x, 0.0,
+ 'This function should be called in [0, 1.0] range');
+ assert_less_than_equal(x, 1.0,
+ 'This function should be called in [0, 1.0] range');
+ return cubicBezier(0, -0.5, 1, -0.5)(x);
+ }
+ var easingExtrapolated = function(x) {
+ assert_less_than(x, 0.0,
+ 'This function should be called in negative range');
+ // For cubic-bezier(0, -0.5, 1, -0.5), the tangent at the
+ // endpoint (x = 0.0) is infinity so we should just return 0.0.
+ return 0.0;
+ }
+
+ anim.pause();
+
+ // The effect-easing produces negative values in (0, 0.766312060)
+ assert_style_left_at(anim, 0, function(x) {
+ return easing(easing(x))
+ });
+ assert_style_left_at(anim, 10, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ // Near the extreme point of the effect-easing function
+ assert_style_left_at(anim, 300, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ assert_style_left_at(anim, 750, function(x) {
+ return easingExtrapolated(easing(x));
+ });
+ assert_style_left_at(anim, 770, function(x) {
+ return easing(easing(x))
+ });
+ assert_style_left_at(anim, 1000, function(x) {
+ return easing(easing(x))
+ });
+}, 'effect easing which produces negative values and the tangent on ' +
+ 'the lower boundary is infinity with keyframe easing producing ' +
+ 'negative values');
+
+var gStepTimingFunctionTests = [
+ {
+ description: 'Test bounds point of step-start easing',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0 },
+ { currentTime: 999, progress: 0 },
+ { currentTime: 1000, progress: 0.5 },
+ { currentTime: 1499, progress: 0.5 },
+ { currentTime: 1500, progress: 1 },
+ { currentTime: 2000, progress: 1 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing with compositor',
+ keyframe: [ { opacity: 0 },
+ { opacity: 1 } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0 },
+ { currentTime: 999, progress: 0 },
+ { currentTime: 1000, progress: 0.5 },
+ { currentTime: 1499, progress: 0.5 },
+ { currentTime: 1500, progress: 1 },
+ { currentTime: 2000, progress: 1 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing with reverse direction',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ direction: 'reverse',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 1 },
+ { currentTime: 1001, progress: 1 },
+ { currentTime: 1500, progress: 1 },
+ { currentTime: 1501, progress: 0.5 },
+ { currentTime: 2000, progress: 0 },
+ { currentTime: 2500, progress: 0 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing ' +
+ 'with iterationStart not at a transition point',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ iterationStart: 0.25,
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0.5 },
+ { currentTime: 999, progress: 0.5 },
+ { currentTime: 1000, progress: 0.5 },
+ { currentTime: 1249, progress: 0.5 },
+ { currentTime: 1250, progress: 1 },
+ { currentTime: 1749, progress: 1 },
+ { currentTime: 1750, progress: 0.5 },
+ { currentTime: 2000, progress: 0.5 },
+ { currentTime: 2500, progress: 0.5 },
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing ' +
+ 'with iterationStart and delay',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ iterationStart: 0.5,
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0.5 },
+ { currentTime: 999, progress: 0.5 },
+ { currentTime: 1000, progress: 1 },
+ { currentTime: 1499, progress: 1 },
+ { currentTime: 1500, progress: 0.5 },
+ { currentTime: 2000, progress: 1 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing ' +
+ 'with iterationStart and reverse direction',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ iterationStart: 0.5,
+ direction: 'reverse',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 1 },
+ { currentTime: 1000, progress: 1 },
+ { currentTime: 1001, progress: 0.5 },
+ { currentTime: 1499, progress: 0.5 },
+ { currentTime: 1500, progress: 1 },
+ { currentTime: 1999, progress: 1 },
+ { currentTime: 2000, progress: 0.5 },
+ { currentTime: 2500, progress: 0.5 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step(4, start) easing ' +
+ 'with iterationStart 0.75 and delay',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ duration: 1000,
+ fill: 'both',
+ delay: 1000,
+ iterationStart: 0.75,
+ easing: 'steps(4, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0.75 },
+ { currentTime: 999, progress: 0.75 },
+ { currentTime: 1000, progress: 1 },
+ { currentTime: 2000, progress: 1 },
+ { currentTime: 2500, progress: 1 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing ' +
+ 'with alternate direction',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ duration: 1000,
+ fill: 'both',
+ delay: 1000,
+ iterations: 2,
+ iterationStart: 1.5,
+ direction: 'alternate',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 1 },
+ { currentTime: 1000, progress: 1 },
+ { currentTime: 1001, progress: 0.5 },
+ { currentTime: 2999, progress: 1 },
+ { currentTime: 3000, progress: 0.5 },
+ { currentTime: 3500, progress: 0.5 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing ' +
+ 'with alternate-reverse direction',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ duration: 1000,
+ fill: 'both',
+ delay: 1000,
+ iterations: 2,
+ iterationStart: 0.5,
+ direction: 'alternate-reverse',
+ easing: 'steps(2, start)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 1 },
+ { currentTime: 1000, progress: 1 },
+ { currentTime: 1001, progress: 0.5 },
+ { currentTime: 2999, progress: 1 },
+ { currentTime: 3000, progress: 0.5 },
+ { currentTime: 3500, progress: 0.5 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-start easing in keyframe',
+ keyframe: [ { width: '0px', easing: 'steps(2, start)' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ },
+ conditions: [
+ { currentTime: 0, progress: 0, width: '0px' },
+ { currentTime: 999, progress: 0, width: '0px' },
+ { currentTime: 1000, progress: 0, width: '50px' },
+ { currentTime: 1499, progress: 0.499, width: '50px' },
+ { currentTime: 1500, progress: 0.5, width: '100px' },
+ { currentTime: 2000, progress: 1, width: '100px' },
+ { currentTime: 2500, progress: 1, width: '100px' }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-end easing ' +
+ 'with iterationStart and delay',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ duration: 1000,
+ fill: 'both',
+ delay: 1000,
+ iterationStart: 0.5,
+ easing: 'steps(2, end)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0 },
+ { currentTime: 999, progress: 0 },
+ { currentTime: 1000, progress: 0.5 },
+ { currentTime: 1499, progress: 0.5 },
+ { currentTime: 1500, progress: 0 },
+ { currentTime: 1999, progress: 0 },
+ { currentTime: 2000, progress: 0.5 },
+ { currentTime: 2500, progress: 0.5 }
+ ]
+ },
+ {
+ description: 'Test bounds point of step-end easing ' +
+ 'with iterationStart not at a transition point',
+ keyframe: [ { width: '0px' },
+ { width: '100px' } ],
+ effect: {
+ delay: 1000,
+ duration: 1000,
+ fill: 'both',
+ iterationStart: 0.75,
+ easing: 'steps(2, end)'
+ },
+ conditions: [
+ { currentTime: 0, progress: 0.5 },
+ { currentTime: 999, progress: 0.5 },
+ { currentTime: 1000, progress: 0.5 },
+ { currentTime: 1249, progress: 0.5 },
+ { currentTime: 1250, progress: 0 },
+ { currentTime: 1749, progress: 0 },
+ { currentTime: 1750, progress: 0.5 },
+ { currentTime: 2000, progress: 0.5 },
+ { currentTime: 2500, progress: 0.5 },
+ ]
+ }
+];
+
+gStepTimingFunctionTests.forEach(function(options) {
+ test(function(t) {
+ var target = createDiv(t);
+ var animation = target.animate(options.keyframe, options.effect);
+ options.conditions.forEach(function(condition) {
+ animation.currentTime = condition.currentTime;
+ if (typeof condition.progress !== 'undefined') {
+ assert_equals(animation.effect.getComputedTiming().progress,
+ condition.progress,
+ 'Progress at ' + animation.currentTime + 'ms');
+ }
+ if (typeof condition.width !== 'undefined') {
+ assert_equals(getComputedStyle(target).width,
+ condition.width,
+ 'Progress at ' + animation.currentTime + 'ms');
+ }
+ });
+ }, options.description);
+});
+
+gInvalidEasingTests.forEach(function(options) {
+ test(function(t) {
+ var div = createDiv(t);
+ assert_throws({ name: 'TypeError' },
+ function() {
+ div.animate({ easing: options.easing }, 100 * MS_PER_SEC);
+ });
+ }, 'Invalid keyframe easing value: \'' + options.easing + '\'');
+});
+
+</script>
+</body>
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-03 22:14:43 +0000