Add m-esr52 at 52.6.0

1 files changed, 31 insertions, 0 deletions

diff --git a/devtools/client/animationinspector/test/browser_animation_mutations_with_same_names.js b/devtools/client/animationinspector/test/browser_animation_mutations_with_same_names.js
new file mode 100644
index 000000000..1ae19c277
--- /dev/null
+++ b/devtools/client/animationinspector/test/browser_animation_mutations_with_same_names.js
@@ -0,0 +1,31 @@
+/* vim: set 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 when animations are added later (through animation mutations) and
+// if these animations have the same names, then all of them are still being
+// displayed (which should be true as long as these animations apply to
+// different nodes).
+
+add_task(function* () {
+  yield addTab(URL_ROOT + "doc_negative_animation.html");
+  let {controller, panel} = yield openAnimationInspector();
+
+  info("Wait until all animations have been added " +
+       "(they're added with setTimeout)");
+  while (controller.animationPlayers.length < 3) {
+    yield controller.once(controller.PLAYERS_UPDATED_EVENT);
+  }
+  yield waitForAllAnimationTargets(panel);
+
+  is(panel.animationsTimelineComponent.animations.length, 3,
+     "The timeline shows 3 animations too");
+
+  // Reduce the known nodeFronts to a set to make them unique.
+  let nodeFronts = new Set(panel.animationsTimelineComponent
+                                .targetNodes.map(n => n.previewer.nodeFront));
+  is(nodeFronts.size, 3,
+     "The animations are applied to 3 different node fronts");
+});