test_threadErrors.html

Enable keyboard shortcuts

<!--

  Any copyright is dedicated to the Public Domain.

  http://creativecommons.org/publicdomain/zero/1.0/

-->

<!DOCTYPE HTML>

<html>

<!--

Tests of DOM Worker Threads (Bug 437152)

-->

<head>

  <title>Test for DOM Worker Threads (Bug 437152)</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=437152">DOM Worker Threads Bug 437152</a>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

<script class="testbody" type="text/javascript">

  const expectedErrorCount = 4;

  function messageListener(event) {

    ok(false, "Unexpected message: " + event.data);

    SimpleTest.finish();

};

  var actualErrorCount = 0;

  var failedWorkers = [];

  function errorListener(event) {

    event.preventDefault();

    if (failedWorkers.includes(event.target)) {

      ok(false, "Seen an extra error from this worker");

      SimpleTest.finish();

      return;

    failedWorkers.push(event.target);

    actualErrorCount++;

    if (actualErrorCount == expectedErrorCount) {

      ok(true, "all errors correctly detected");

      SimpleTest.finish();

};

  for (var i = 1; i <= expectedErrorCount; i++) {

    var worker = new Worker("threadErrors_worker" + i + ".js");

    worker.onmessage = messageListener;

    worker.onerror = errorListener;

    worker.postMessage("Hi");

  SimpleTest.waitForExplicitFinish();

</script>

</pre>

</body>

</html>