Add m-esr52 at 52.6.0

1 files changed, 41 insertions, 0 deletions

diff --git a/devtools/client/webaudioeditor/test/browser_webaudio-actor-destroy-node.js b/devtools/client/webaudioeditor/test/browser_webaudio-actor-destroy-node.js
new file mode 100644
index 000000000..e48836c3f
--- /dev/null
+++ b/devtools/client/webaudioeditor/test/browser_webaudio-actor-destroy-node.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test `destroy-node` event on WebAudioActor.
+ */
+
+add_task(function* () {
+  let { target, front } = yield initBackend(DESTROY_NODES_URL);
+
+  let [, , created] = yield Promise.all([
+    front.setup({ reload: true }),
+    once(front, "start-context"),
+    // Should create dest, gain, and oscillator node and 10
+    // disposable buffer nodes
+    getN(front, "create-node", 13)
+  ]);
+
+  let waitUntilDestroyed = getN(front, "destroy-node", 10);
+
+  // Force CC so we can ensure it's run to clear out dead AudioNodes
+  forceNodeCollection();
+
+  let destroyed = yield waitUntilDestroyed;
+
+  destroyed.forEach((node, i) => {
+    ok(node.type, "AudioBufferSourceNode", "Only buffer nodes are destroyed");
+    ok(actorIsInList(created, destroyed[i]),
+      "`destroy-node` called only on AudioNodes in current document.");
+  });
+
+  yield removeTab(target.tab);
+});
+
+function actorIsInList(list, actor) {
+  for (let i = 0; i < list.length; i++) {
+    if (list[i].actorID === actor.actorID)
+      return list[i];
+  }
+  return null;
+}