Bug 1822937 - Add devtools test to ensure we are no longer crashing; r=ochameau,devtools-reviewers

The test times out when it is unsuccessful. Differential Revision: https://phabricator.services.mozilla.com/D173277
2023-03-23 10:15:09 +00:00 · 2023-03-23 10:15:09 +00:00 · b7353a6c87
--- a/devtools/client/debugger/test/mochitest/browser.ini
+++ b/devtools/client/debugger/test/mochitest/browser.ini
@ -275,6 +275,7 @@ skip-if =
 [browser_dbg-browser-toolbox-workers.js]
 skip-if = asan || !nightly_build || fission # Bug 1591064, parent intercept mode is needed bug 1588154, Disable frequent fission intermittents Bug 1675020
 [browser_dbg-wrong-fetch.js]
+[browser_dbg-worker-module.js]
 [browser_dbg-worker-nested.js]
 [browser_dbg-step-in-navigate.js]
 [browser_dbg-settings-disable-javascript.js]
--- a/devtools/client/debugger/test/mochitest/browser_dbg-worker-module.js
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-worker-module.js
@ -0,0 +1,19 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// Test that worker modules do not crash when run in the debugger.
+
+"use strict";
+
+add_task(async function() {
+  const dbg = await initDebugger("doc-module-worker.html");
+  // reload the page
+  await navigate(dbg, "doc-module-worker.html", "doc-module-worker.html");
+
+  ok(true, "didn't crash");
+  // TODO: bug 1816933 -- we can test actual functionality:
+  //  await waitForThreadCount(dbg, 1);
+  //  const workers = dbg.selectors.getThreads();
+  //  ok(workers.length == 1, "Got one worker");
+});
--- a/devtools/client/debugger/test/mochitest/examples/doc-module-worker.html
+++ b/devtools/client/debugger/test/mochitest/examples/doc-module-worker.html
@ -0,0 +1,10 @@
+<!DOCTYPE HTML>
+<html>
+<script>
+new Worker("data:text/javascript;charset=UTF-8,postMessage('HELLO')", {type: "module"});
+</script>
+<body>
+Hello World!
+</body>
+</html>
+