1 files changed, 75 insertions, 0 deletions
diff --git a/devtools/client/shared/test/browser_dbg_listworkers.js b/devtools/client/shared/test/browser_dbg_listworkers.js
new file mode 100644
index 0000000000..fcdcf8e5dd
--- /dev/null
+++ b/devtools/client/shared/test/browser_dbg_listworkers.js
@@ -0,0 +1,75 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);
+
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref("security.allow_eval_with_system_principal");
+});
+
+var TAB_URL = EXAMPLE_URL + "doc_listworkers-tab.html";
+var WORKER1_URL = "code_listworkers-worker1.js";
+var WORKER2_URL = "code_listworkers-worker2.js";
+
+add_task(async function test() {
+  const tab = await addTab(TAB_URL);
+  const target = await createAndAttachTargetForTab(tab);
+
+  let { workers } = await listWorkers(target);
+  is(workers.length, 0);
+
+  let onWorkerListChanged = waitForWorkerListChanged(target);
+  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER1_URL], workerUrl => {
+    content.worker1 = new content.Worker(workerUrl);
+  });
+  await onWorkerListChanged;
+
+  ({ workers } = await listWorkers(target));
+  is(workers.length, 1);
+  is(workers[0].url, WORKER1_URL);
+
+  onWorkerListChanged = waitForWorkerListChanged(target);
+  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], workerUrl => {
+    content.worker2 = new content.Worker(workerUrl);
+  });
+  await onWorkerListChanged;
+
+  ({ workers } = await listWorkers(target));
+  is(workers.length, 2);
+  is(workers[0].url, WORKER1_URL);
+  is(workers[1].url, WORKER2_URL);
+
+  onWorkerListChanged = waitForWorkerListChanged(target);
+  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], workerUrl => {
+    content.worker1.terminate();
+  });
+  await onWorkerListChanged;
+
+  ({ workers } = await listWorkers(target));
+  is(workers.length, 1);
+  is(workers[0].url, WORKER2_URL);
+
+  onWorkerListChanged = waitForWorkerListChanged(target);
+  await SpecialPowers.spawn(tab.linkedBrowser, [WORKER2_URL], workerUrl => {
+    content.worker2.terminate();
+  });
+  await onWorkerListChanged;
+
+  ({ workers } = await listWorkers(target));
+  is(workers.length, 0);
+
+  await target.destroy();
+  finish();
+});
+
+function listWorkers(targetFront) {
+  info("Listing workers.");
+  return targetFront.listWorkers();
+}
+
+function waitForWorkerListChanged(targetFront) {
+  info("Waiting for worker list to change.");
+  return targetFront.once("workerListChanged");
+}