1 files changed, 51 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser_service_workers.js b/devtools/client/aboutdebugging/test/browser_service_workers.js
new file mode 100644
index 000000000..74e4efb3e
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser_service_workers.js
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Service workers can't be loaded from chrome://,
+// but http:// is ok with dom.serviceWorkers.testing.enabled turned on.
+const SERVICE_WORKER = URL_ROOT + "service-workers/empty-sw.js";
+const TAB_URL = URL_ROOT + "service-workers/empty-sw.html";
+
+add_task(function* () {
+  yield new Promise(done => {
+    let options = {"set": [
+      // Accept workers from mochitest's http.
+      ["dom.serviceWorkers.enabled", true],
+      ["dom.serviceWorkers.openWindow.enabled", true],
+      ["dom.serviceWorkers.testing.enabled", true],
+    ]};
+    SpecialPowers.pushPrefEnv(options, done);
+  });
+
+  let { tab, document } = yield openAboutDebugging("workers");
+
+  let swTab = yield addTab(TAB_URL);
+
+  let serviceWorkersElement = getServiceWorkerList(document);
+
+  yield waitForMutation(serviceWorkersElement, { childList: true });
+
+  // Check that the service worker appears in the UI
+  let names = [...document.querySelectorAll("#service-workers .target-name")];
+  names = names.map(element => element.textContent);
+  ok(names.includes(SERVICE_WORKER),
+    "The service worker url appears in the list: " + names);
+
+  try {
+    yield unregisterServiceWorker(swTab, serviceWorkersElement);
+    ok(true, "Service worker registration unregistered");
+  } catch (e) {
+    ok(false, "SW not unregistered; " + e);
+  }
+
+  // Check that the service worker disappeared from the UI
+  names = [...document.querySelectorAll("#service-workers .target-name")];
+  names = names.map(element => element.textContent);
+  ok(!names.includes(SERVICE_WORKER),
+    "The service worker url is no longer in the list: " + names);
+
+  yield removeTab(swTab);
+  yield closeAboutDebugging(tab);
+});