import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/server/tests/browser/browser_animation_getFrames.js

@@ -0,0 +1,32 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Check that the AnimationPlayerActor exposes a getFrames method that returns
+// the list of keyframes in the animation.
+
+const URL = MAIN_DOMAIN + "animation.html";
+
+add_task(function* () {
+  let {client, walker, animations} =
+    yield initAnimationsFrontForUrl(MAIN_DOMAIN + "animation.html");
+
+  info("Get the test node and its animation front");
+  let node = yield walker.querySelector(walker.rootNode, ".simple-animation");
+  let [player] = yield animations.getAnimationPlayersForNode(node);
+
+  ok(player.getFrames, "The front has the getFrames method");
+
+  let frames = yield player.getFrames();
+  is(frames.length, 2, "The correct number of keyframes was retrieved");
+  ok(frames[0].transform, "Frame 0 has the transform property");
+  ok(frames[1].transform, "Frame 1 has the transform property");
+  // Note that we don't really test the content of the frame object here on
+  // purpose. This object comes straight out of the web animations API
+  // unmodified.
+
+  yield client.close();
+  gBrowser.removeCurrentTab();
+});