tenfourfox/devtools/server/tests/browser/browser_animation_emitMutations.js
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

63 lines
2.3 KiB
JavaScript

/* 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 emits events about changed animations on a
// node after getAnimationPlayersForNode was called on that node.
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 onMutations = once(animations, "mutations");
info("Add a couple of animation on the node");
yield node.modifyAttributes([
{attributeName: "class", newValue: "multiple-animations"}
]);
let changes = yield onMutations;
ok(true, "The mutations event was emitted");
is(changes.length, 2, "There are 2 changes in the mutation event");
ok(changes.every(({type}) => type === "added"), "Both changes are additions");
is(changes[0].player.initialState.name, "move",
"The first added animation is 'move'");
is(changes[1].player.initialState.name, "glow",
"The first added animation is 'glow'");
info("Store the 2 new players for comparing later");
let p1 = changes[0].player;
let p2 = changes[1].player;
info("Listen for removed animations");
onMutations = once(animations, "mutations");
info("Remove the animation css class on the node");
yield node.modifyAttributes([
{attributeName: "class", newValue: "not-animated"}
]);
changes = yield onMutations;
ok(true, "The mutations event was emitted");
is(changes.length, 2, "There are 2 changes in the mutation event");
ok(changes.every(({type}) => type === "removed"), "Both are removals");
ok(changes[0].player === p1 || changes[0].player === p2,
"The first removed player was one of the previously added players");
ok(changes[1].player === p1 || changes[1].player === p2,
"The second removed player was one of the previously added players");
yield closeDebuggerClient(client);
gBrowser.removeCurrentTab();
});