1 files changed, 71 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_serviceworker_start.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_serviceworker_start.js
new file mode 100644
index 0000000000..483a1cad43
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_serviceworker_start.js
@@ -0,0 +1,71 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/* import-globals-from helper-serviceworker.js */
+Services.scriptloader.loadSubScript(
+  CHROME_URL_ROOT + "helper-serviceworker.js",
+  this
+);
+
+const SW_TAB_URL = URL_ROOT_SSL + "resources/service-workers/empty-sw.html";
+const SW_URL = URL_ROOT_SSL + "resources/service-workers/empty-sw.js";
+
+/**
+ * Test that service workers can be started using about:debugging.
+ */
+add_task(async function () {
+  await enableServiceWorkerDebugging();
+
+  // Setting a low idle_timeout and idle_extended_timeout will allow the service worker
+  // to reach the STOPPED state quickly, which will allow us to test the start button.
+  // The default value is 30000 milliseconds.
+  info("Set a low service worker idle timeout");
+  await pushPref("dom.serviceWorkers.idle_timeout", 1000);
+  await pushPref("dom.serviceWorkers.idle_extended_timeout", 1000);
+
+  const { document, tab, window } = await openAboutDebugging({
+    enableWorkerUpdates: true,
+  });
+  await selectThisFirefoxPage(document, window.AboutDebugging.store);
+
+  // Open a tab that registers a basic service worker.
+  const swTab = await addTab(SW_TAB_URL);
+
+  // Wait for the registration to make sure service worker has been started, and that we
+  // are not just reading STOPPED as the initial state.
+  await waitForRegistration(swTab);
+
+  info("Wait until the service worker stops");
+  const targetElement = await waitForServiceWorkerStopped(SW_URL, document);
+
+  // Retrieve the Start button for the worker.
+  const startButton = targetElement.querySelector(".qa-start-button");
+  ok(startButton, "Found its start button");
+
+  info(
+    "Click on the start button and wait for the service worker to be running"
+  );
+  const onServiceWorkerRunning = waitForServiceWorkerRunning(SW_URL, document);
+  startButton.click();
+  const updatedTarget = await onServiceWorkerRunning;
+
+  // Check that the buttons are displayed as expected.
+  const hasInspectButton = updatedTarget.querySelector(
+    ".qa-debug-target-inspect-button"
+  );
+  const hasStartButton = updatedTarget.querySelector(".qa-start-button");
+  ok(hasInspectButton, "Service worker has an inspect button");
+  ok(!hasStartButton, "Service worker does not have a start button");
+
+  info("Unregister service worker");
+  await unregisterServiceWorker(swTab);
+
+  info("Wait until the service worker disappears from about:debugging");
+  await waitUntil(() => !findDebugTargetByText(SW_URL, document));
+
+  info("Remove tabs");
+  await removeTab(swTab);
+  await removeTab(tab);
+});