1 files changed, 52 insertions, 0 deletions
diff --git a/dom/workers/test/simpleThread_worker.js b/dom/workers/test/simpleThread_worker.js
new file mode 100644
index 0000000000..9d6fb30f2f
--- /dev/null
+++ b/dom/workers/test/simpleThread_worker.js
@@ -0,0 +1,52 @@
+/**
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+"use strict";
+
+function messageListener(event) {
+  var exception;
+  try {
+    event.bubbles = true;
+  } catch (e) {
+    exception = e;
+  }
+
+  if (!(exception instanceof TypeError)) {
+    throw exception;
+  }
+
+  switch (event.data) {
+    case "no-op":
+      break;
+    case "components":
+      postMessage(Components.toString());
+      break;
+    case "start":
+      for (var i = 0; i < 1000; i++) {}
+      postMessage("started");
+      break;
+    case "stop":
+      self.postMessage("no-op");
+      postMessage("stopped");
+      self.removeEventListener("message", messageListener);
+      break;
+    default:
+      throw "Bad message: " + event.data;
+  }
+}
+
+if (!("DedicatedWorkerGlobalScope" in self)) {
+  throw new Error("DedicatedWorkerGlobalScope should be visible!");
+}
+if (!(self instanceof DedicatedWorkerGlobalScope)) {
+  throw new Error("The global should be a SharedWorkerGlobalScope!");
+}
+if (!(self instanceof WorkerGlobalScope)) {
+  throw new Error("The global should be a WorkerGlobalScope!");
+}
+if ("SharedWorkerGlobalScope" in self) {
+  throw new Error("SharedWorkerGlobalScope should not be visible!");
+}
+
+addEventListener("message", { handleEvent: messageListener });