1 files changed, 67 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_animation_playPauseSeveral.js b/devtools/server/tests/browser/browser_animation_playPauseSeveral.js
new file mode 100644
index 0000000000..bda17d4fff
--- /dev/null
+++ b/devtools/server/tests/browser/browser_animation_playPauseSeveral.js
@@ -0,0 +1,67 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Check that the AnimationsActor can pause/play a given list of animations at once.
+
+// List of selectors that match "all" animated nodes in the test page.
+// This list misses a bunch of animated nodes on purpose. Only the ones that
+// have infinite animations are listed. This is done to avoid intermittents
+// caused when finite animations are already done playing by the time the test
+// runs.
+const ALL_ANIMATED_NODES = [
+  ".simple-animation",
+  ".multiple-animations",
+  ".delayed-animation",
+];
+
+add_task(async function() {
+  const { target, walker, animations } = await initAnimationsFrontForUrl(
+    MAIN_DOMAIN + "animation.html"
+  );
+
+  info("Pause all animations in the test document");
+  await toggleAndCheckStates(walker, animations, ALL_ANIMATED_NODES, "paused");
+
+  info("Play all animations in the test document");
+  await toggleAndCheckStates(walker, animations, ALL_ANIMATED_NODES, "running");
+
+  await target.destroy();
+  gBrowser.removeCurrentTab();
+});
+
+async function toggleAndCheckStates(walker, animations, selectors, playState) {
+  info(
+    "Checking the playState of all the nodes that have infinite running " +
+      "animations"
+  );
+
+  for (const selector of selectors) {
+    const players = await getPlayersFor(walker, animations, selector);
+
+    if (playState === "paused") {
+      await animations.pauseSome(players);
+    } else {
+      await animations.playSome(players);
+    }
+
+    info("Getting the AnimationPlayerFront for node " + selector);
+    const player = players[0];
+    await checkPlayState(player, selector, playState);
+  }
+}
+
+async function getPlayersFor(walker, animations, selector) {
+  const node = await walker.querySelector(walker.rootNode, selector);
+  return animations.getAnimationPlayersForNode(node);
+}
+
+async function checkPlayState(player, selector, expectedState) {
+  const state = await player.getCurrentState();
+  is(
+    state.playState,
+    expectedState,
+    "The playState of node " + selector + " is " + expectedState
+  );
+}