1 files changed, 20 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/xpcshell/data/TestWorkerWatcherParent.sys.mjs b/toolkit/components/extensions/test/xpcshell/data/TestWorkerWatcherParent.sys.mjs
new file mode 100644
index 0000000000..a9d919f1ed
--- /dev/null
+++ b/toolkit/components/extensions/test/xpcshell/data/TestWorkerWatcherParent.sys.mjs
@@ -0,0 +1,20 @@
+export class TestWorkerWatcherParent extends JSProcessActorParent {
+  constructor() {
+    super();
+    // This is set by the test helper that does use these process actors.
+    this.eventEmitter = null;
+  }
+
+  receiveMessage(msg) {
+    switch (msg.name) {
+      case "Test:WorkerSpawned":
+        this.eventEmitter?.emit("worker-spawned", msg.data);
+        break;
+      case "Test:WorkerTerminated":
+        this.eventEmitter?.emit("worker-terminated", msg.data);
+        break;
+      default:
+        throw new Error(`Unexpected message received: ${msg.name}`);
+    }
+  }
+}