web animation updates

scripts/vendor/web-animations-js/test/js/keyframe-effect-constructor.js

@@ -0,0 +1,80 @@
+suite('keyframe-effect-constructor', function() {
+  setup(function() {
+    document.timeline.getAnimations().forEach(function(animation) {
+      animation.cancel();
+    });
+  });
+
+  test('Playing a KeyframeEffect makes an Animation', function() {
+    var keyframeEffect = new KeyframeEffect(document.body, [], 1000);
+    assert.equal(document.body.getAnimations().length, 0);
+
+    var animation = document.timeline.play(keyframeEffect);
+    tick(200);
+    assert.equal(document.body.getAnimations().length, 1);
+
+    tick(1600);
+    assert.equal(document.body.getAnimations().length, 0);
+  });
+
+  test('Setting the timing function on a KeyframeEffect works', function() {
+    function leftAsNumber(target) {
+      left = getComputedStyle(target).left;
+      return Number(left.substring(0, left.length - 2));
+    }
+
+    var target1 = document.createElement('div');
+    var target2 = document.createElement('div');
+    target1.style.position = 'absolute';
+    target2.style.position = 'absolute';
+    document.body.appendChild(target1);
+    document.body.appendChild(target2);
+
+    var keyframeEffect1 = new KeyframeEffect(target1, [{left: '0px'}, {left: '50px'}], 1000);
+    var keyframeEffect2 = new KeyframeEffect(target2, [{left: '0px'}, {left: '50px'}], {duration: 1000, easing: 'ease-in'});
+
+    var animation1 = document.timeline.play(keyframeEffect1);
+    var animation2 = document.timeline.play(keyframeEffect2);
+
+    tick(0);
+    assert.equal(leftAsNumber(target1), 0);
+    assert.equal(leftAsNumber(target2), 0);
+
+    tick(250);
+    assert.closeTo(leftAsNumber(target1), 12.5, 1);
+    assert.closeTo(leftAsNumber(target2), 4.65, 1);
+
+    tick(500);
+    assert.closeTo(leftAsNumber(target1), 25, 1);
+    assert.closeTo(leftAsNumber(target2), 15.25, 1);
+  });
+
+  test('Timing is always converted to an AnimationEffectTiming', function() {
+    var target = document.createElement('div');
+    document.body.appendChild(target);
+
+    var keyframes = [{background: 'blue'}, {background: 'red'}];
+
+    var keyframeEffect = new KeyframeEffect(target, keyframes, 200);
+    assert.equal(keyframeEffect.timing.duration, 200);
+
+    keyframeEffect = new KeyframeEffect(target, keyframes);
+    assert.isDefined(keyframeEffect.timing);
+
+    keyframeEffect = new KeyframeEffect(target, keyframes, {duration: 200});
+    var group = new GroupEffect([keyframeEffect]);
+    assert.equal(group.timing.duration, 'auto');
+  });
+
+  test('Handle null target for KeyframeEffect', function() {
+    var keyframeEffect = new KeyframeEffect(null, function(tf) {
+      // noop
+    }, 200);
+
+    var animation = document.timeline.play(keyframeEffect);
+    assert.isNotNull(animation);
+    tick(50);
+    tick(150);
+    assert.equal(animation.currentTime, 100);
+  });
+});