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-rw-r--r--devtools/server/tests/browser/browser_animation_keepFinished.js54
1 files changed, 54 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_animation_keepFinished.js b/devtools/server/tests/browser/browser_animation_keepFinished.js
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+++ b/devtools/server/tests/browser/browser_animation_keepFinished.js
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+/* 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";
+
+// Test that the AnimationsActor doesn't report finished animations as removed.
+// Indeed, animations that only have the "finished" playState can be modified
+// still, so we want the AnimationsActor to preserve the corresponding
+// AnimationPlayerActor.
+
+add_task(function* () {
+ let {client, walker, animations} =
+ yield initAnimationsFrontForUrl(MAIN_DOMAIN + "animation.html");
+
+ info("Retrieve a non-animated node");
+ let node = yield walker.querySelector(walker.rootNode, ".not-animated");
+
+ info("Retrieve the animation player for the node");
+ let players = yield animations.getAnimationPlayersForNode(node);
+ is(players.length, 0, "The node has no animation players");
+
+ info("Listen for new animations");
+ let reportedMutations = [];
+ function onMutations(mutations) {
+ reportedMutations = [...reportedMutations, ...mutations];
+ }
+ animations.on("mutations", onMutations);
+
+ info("Add a short animation on the node");
+ yield node.modifyAttributes([
+ {attributeName: "class", newValue: "short-animation"}
+ ]);
+
+ info("Wait for longer than the animation's duration");
+ yield wait(2000);
+
+ players = yield animations.getAnimationPlayersForNode(node);
+ is(players.length, 0, "The added animation is surely finished");
+
+ is(reportedMutations.length, 1, "Only one mutation was reported");
+ is(reportedMutations[0].type, "added", "The mutation was an addition");
+
+ animations.off("mutations", onMutations);
+
+ yield client.close();
+ gBrowser.removeCurrentTab();
+});
+
+function wait(ms) {
+ return new Promise(resolve => {
+ setTimeout(resolve, ms);
+ });
+}