1 files changed, 41 insertions, 0 deletions
diff --git a/dom/ipc/tests/JSProcessActor/browser_observer_notification.js b/dom/ipc/tests/JSProcessActor/browser_observer_notification.js
new file mode 100644
index 0000000000..28dfa16481
--- /dev/null
+++ b/dom/ipc/tests/JSProcessActor/browser_observer_notification.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+/* eslint-disable no-unused-vars */
+declTest("test observer triggering actor creation", {
+  async test(browser) {
+    await SpecialPowers.spawn(browser, [], async function () {
+      const TOPIC = "test-js-content-actor-child-observer";
+      Services.obs.notifyObservers(content.window, TOPIC, "dataString");
+
+      let child = ChromeUtils.domProcessChild;
+      let actorChild = child.getActor("TestProcessActor");
+      ok(actorChild, "JSProcessActorChild should have value.");
+      ok(
+        actorChild.lastObserved,
+        "JSProcessActorChild lastObserved should have value."
+      );
+      let { subject, topic, data } = actorChild.lastObserved;
+      is(topic, TOPIC, "Topic matches");
+      is(data, "dataString", "Data matches");
+    });
+  },
+});
+
+declTest("test observers with null data", {
+  async test(browser) {
+    await SpecialPowers.spawn(browser, [], async function () {
+      const TOPIC = "test-js-content-actor-child-observer";
+      Services.obs.notifyObservers(content.window, TOPIC);
+
+      let child = ChromeUtils.domProcessChild;
+      let actorChild = child.getActor("TestProcessActor");
+      ok(actorChild, "JSProcessActorChild should have value.");
+      let { subject, topic, data } = actorChild.lastObserved;
+
+      is(topic, TOPIC, "Topic matches");
+      is(data, null, "Data matches");
+    });
+  },
+});