Bug 1428072 - 3/3 - Add a mochitest to test profiling better r=mstange
MozReview-Commit-ID: BOoS37yFznU
--- a/tools/profiler/tests/chrome/chrome.ini
+++ b/tools/profiler/tests/chrome/chrome.ini
@@ -1,4 +1,5 @@
[DEFAULT]
support-files=profiler_test_utils.js
[test_profile_worker_bug_1428076.html]
+[test_profile_worker.html]
new file mode 100644
--- /dev/null
+++ b/tools/profiler/tests/chrome/test_profile_worker.html
@@ -0,0 +1,66 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1428076
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 1428076</title>
+ <link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
+ <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1428076">Mozilla Bug 1428076</a>
+
+<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+<script type="application/javascript" src="profiler_test_utils.js"></script>
+<script type="application/javascript">
+/* globals runTest */
+
+"use strict";
+
+const settings = {
+ entries: 1000000, // 9MB
+ interval: 1, // ms
+ features: ["js", "threads", "leaf", "stackwalk"],
+ threads: ["GeckoMain", "Compositor", "Worker"] // most common combination
+};
+
+const workerCode = `
+ console.log('hello world');
+ setTimeout(() => postMessage('message from worker'), 50);
+`;
+
+function startWorker() {
+ // We use a Blob for the worker content to avoid an external JS file, and data
+ // URLs seem to be blocked in a chrome environment.
+ const workerContent = new Blob(
+ [ workerCode ],
+ { type: "application/javascript" }
+ );
+ const blobURL = URL.createObjectURL(workerContent);
+
+ // We start a worker and then terminate it right away to trigger our bug.
+ info("Starting the worker...");
+ const myWorker = new Worker(blobURL);
+ return { worker: myWorker, url: blobURL };
+}
+
+function workload() {
+ const { worker, url } = startWorker();
+
+ return new Promise(resolve => {
+ worker.onmessage = () => {
+ info("Got a message, terminating the worker.");
+ worker.terminate();
+ URL.revokeObjectURL(url);
+ resolve();
+ };
+ });
+}
+
+runTest(settings, workload);
+
+</script>
+</body>
+</html>