--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -354746,22 +354746,16 @@
     ]
    ],
    "web-animations/interfaces/AnimationEffectTiming/fill.html": [
     [
      "/web-animations/interfaces/AnimationEffectTiming/fill.html",
      {}
     ]
    ],
-   "web-animations/interfaces/AnimationEffectTiming/getAnimations.html": [
-    [
-     "/web-animations/interfaces/AnimationEffectTiming/getAnimations.html",
-     {}
-    ]
-   ],
    "web-animations/interfaces/AnimationEffectTiming/idlharness.html": [
     [
      "/web-animations/interfaces/AnimationEffectTiming/idlharness.html",
      {}
     ]
    ],
    "web-animations/interfaces/AnimationEffectTiming/iterationStart.html": [
     [
@@ -585818,17 +585812,17 @@
    "284d173b6875923ddd894d2ac7498cd07311c001",
    "testharness"
   ],
   "web-animations/interfaces/Animatable/animate.html": [
    "dfba0ceb784a9ba847f0f0db1234a59c783ecfab",
    "testharness"
   ],
   "web-animations/interfaces/Animatable/getAnimations.html": [
-   "9ced6f956324856d94538c3ea7304f37f3da10e6",
+   "f2c2b812cf87285cb1b3c62cc2c971978eb27dcc",
    "testharness"
   ],
   "web-animations/interfaces/Animation/cancel.html": [
    "d624285aa264c5b2d823e85fdbfa05f47f26e32a",
    "testharness"
   ],
   "web-animations/interfaces/Animation/constructor.html": [
    "24a0f7b8f147c12ca2a1aacefa62ab52670fa72c",
@@ -585905,20 +585899,16 @@
   "web-animations/interfaces/AnimationEffectTiming/endDelay.html": [
    "0c4e2cfee8ecb4fb7879df6c85ba0ba38310662d",
    "testharness"
   ],
   "web-animations/interfaces/AnimationEffectTiming/fill.html": [
    "c0237dd37bd3e56e32bd3e027c5f9357081cfef0",
    "testharness"
   ],
-  "web-animations/interfaces/AnimationEffectTiming/getAnimations.html": [
-   "e0ad6da869693c4e4b57aa2e5e3cb4ec557c7bc8",
-   "testharness"
-  ],
   "web-animations/interfaces/AnimationEffectTiming/idlharness.html": [
    "a4e72d3ebf93a0bb6934f887c3da250a2ab67b63",
    "testharness"
   ],
   "web-animations/interfaces/AnimationEffectTiming/iterationStart.html": [
    "c4d40ffdd9080732f202d9067f901cc065c470de",
    "testharness"
   ],

--- a/testing/web-platform/tests/web-animations/interfaces/Animatable/getAnimations.html
+++ b/testing/web-platform/tests/web-animations/interfaces/Animatable/getAnimations.html
@@ -62,10 +62,95 @@ test(function(t) {
   var div = createDiv(t);
   var animation = div.animate(null, {
     duration: 100 * MS_PER_SEC,
     delay: 100 * MS_PER_SEC,
   });
   assert_array_equals(div.getAnimations(), [animation]);
 }, 'Returns animations in their delay phase');
 
+test(function(t) {
+  var div = createDiv(t);
+  var animation = div.animate(null, 100 * MS_PER_SEC);
+
+  animation.finish();
+  assert_array_equals(div.getAnimations(), [],
+                      'Animation should not be returned when it is finished');
+
+  animation.effect.timing.duration += 100 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned after extending the'
+                      + ' duration');
+
+  animation.effect.timing.duration = 0;
+  assert_array_equals(div.getAnimations(), [],
+                      'Animation should not be returned after setting the'
+                      + ' duration to zero');
+}, 'Returns animations based on dynamic changes to individual'
+   + ' animations\' duration');
+
+test(function(t) {
+  var div = createDiv(t);
+  var animation = div.animate(null, 100 * MS_PER_SEC);
+
+  animation.effect.timing.endDelay = -200 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [],
+                      'Animation should not be returned after setting a'
+                      + ' negative end delay such that the end time is less'
+                      + ' than the current time');
+
+  animation.effect.timing.endDelay = 100 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned after setting a positive'
+                      + ' end delay such that the end time is more than the'
+                      + ' current time');
+}, 'Returns animations based on dynamic changes to individual'
+   + ' animations\' end delay');
+
+test(function(t) {
+  var div = createDiv(t);
+  var animation = div.animate(null, 100 * MS_PER_SEC);
+
+  animation.finish();
+  assert_array_equals(div.getAnimations(), [],
+                      'Animation should not be returned when it is finished');
+
+  animation.effect.timing.iterations = 10;
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned after inreasing the'
+                      + ' number of iterations');
+
+  animation.effect.timing.iterations = 0;
+  assert_array_equals(div.getAnimations(), [],
+                      'Animations should not be returned after setting the'
+                      + ' iteration count to zero');
+
+  animation.effect.timing.iterations = Infinity;
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned after inreasing the'
+                      + ' number of iterations to infinity');
+}, 'Returns animations based on dynamic changes to individual'
+   + ' animations\' iteration count');
+
+test(function(t) {
+  var div = createDiv(t);
+  var animation = div.animate(null,
+                              { duration: 100 * MS_PER_SEC,
+                                delay: 50 * MS_PER_SEC,
+                                endDelay: -50 * MS_PER_SEC });
+
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned at during delay phase');
+
+  animation.currentTime = 50 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [animation],
+                      'Animation should be returned after seeking to the start'
+                      + ' of the active interval');
+
+  animation.currentTime = 100 * MS_PER_SEC;
+  assert_array_equals(div.getAnimations(), [],
+                      'Animation should not be returned after seeking to the'
+                      + ' clipped end of the active interval');
+}, 'Returns animations based on dynamic changes to individual'
+   + ' animations\' current time');
+
 </script>
 </body>

deleted file mode 100644
--- a/testing/web-platform/tests/web-animations/interfaces/AnimationEffectTiming/getAnimations.html
+++ /dev/null
@@ -1,90 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Element.getAnimations</title>
-<link rel="help" href="http://w3c.github.io/web-animations/#animationeffecttiming">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../../testcommon.js"></script>
-<body>
-<div id="log"></div>
-<script>
-'use strict';
-
-test(function(t) {
-  var div = createDiv(t);
-  var anim = div.animate({ opacity: [ 0, 1 ] }, 2000);
-  anim.finish();
-  assert_equals(div.getAnimations().length, 0, 'animation finished');
-  anim.effect.timing.duration += 100000;
-  assert_equals(div.getAnimations()[0], anim, 'set duration 102000');
-  anim.effect.timing.duration = 0;
-  assert_equals(div.getAnimations().length, 0, 'set duration 0');
-  anim.effect.timing.duration = 'auto';
-  assert_equals(div.getAnimations().length, 0, 'set duration \'auto\'');
-}, 'when duration is changed');
-
-test(function(t) {
-  var div = createDiv(t);
-  var anim = div.animate({ opacity: [ 0, 1 ] }, 2000);
-
-  anim.effect.timing.endDelay = -3000;
-  assert_equals(div.getAnimations().length, 0,
-    'set negative endDelay so as endTime is less than currentTime');
-  anim.effect.timing.endDelay = 1000;
-  assert_equals(div.getAnimations()[0], anim,
-    'set positive endDelay so as endTime is more than currentTime');
-
-  anim.effect.timing.duration = 1000;
-  anim.currentTime = 1500;
-  assert_equals(div.getAnimations().length, 0,
-    'set currentTime less than endTime');
-  anim.effect.timing.endDelay = -500;
-  anim.currentTime = 400;
-  assert_equals(div.getAnimations()[0], anim,
-    'set currentTime less than endTime when endDelay is negative value');
-  anim.currentTime = 500;
-  assert_equals(div.getAnimations().length, 0,
-    'set currentTime same as endTime when endDelay is negative value');
-  anim.currentTime = 1000;
-  assert_equals(div.getAnimations().length, 0,
-    'set currentTime same as duration when endDelay is negative value');
-}, 'when endDelay is changed');
-
-test(function(t) {
-  var div = createDiv(t);
-  var anim = div.animate({ opacity: [ 0, 1 ] }, 2000);
-  anim.finish();
-  assert_equals(div.getAnimations().length, 0, 'animation finished');
-  anim.effect.timing.iterations = 10;
-  assert_equals(div.getAnimations()[0], anim, 'set iterations 10');
-  anim.effect.timing.iterations = 0;
-  assert_equals(div.getAnimations().length, 0, 'set iterations 0');
-  anim.effect.timing.iterations = Infinity;
-  assert_equals(div.getAnimations().length, 1, 'set iterations Infinity');
-}, 'when iterations is changed');
-
-test(function(t) {
-  var div = createDiv(t);
-  var anim = div.animate({ opacity: [ 0, 1 ] },
-                         { duration: 1000, delay: 500, endDelay: -500 });
-  assert_equals(div.getAnimations()[0], anim, 'when currentTime 0');
-  anim.currentTime = 500;
-  assert_equals(div.getAnimations()[0], anim, 'set currentTime 500');
-  anim.currentTime = 1000;
-  assert_equals(div.getAnimations().length, 0, 'set currentTime 1000');
-}, 'when currentTime changed in duration:1000, delay: 500, endDelay: -500');
-
-test(function(t) {
-  var div = createDiv(t);
-  var anim = div.animate({ opacity: [ 0, 1 ] },
-                         { duration: 1000, delay: -500, endDelay: -500 });
-  assert_equals(div.getAnimations().length, 0, 'when currentTime 0');
-  anim.currentTime = 500;
-  assert_equals(div.getAnimations().length, 0, 'set currentTime 500');
-  anim.currentTime = 1000;
-  assert_equals(div.getAnimations().length, 0, 'set currentTime 1000');
-}, 'when currentTime changed in duration:1000, delay: -500, endDelay: -500');
-
-
-</script>
-</body>