gecko-dev/dom/workers/test/test_simpleThread.html

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<!--
Tests of DOM Worker Threads (Bug 437152)
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<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" />
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<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">

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<pre id="test">
<script class="testbody" type="text/javascript">

  var worker = new Worker("simpleThread_worker.js");

  worker.addEventListener("message",function(event) {
    is(event.target, worker);
    switch (event.data) {
      case "no-op":
        break;
      case "started":
        is(gotErrors, true);
        worker.postMessage("no-op");
        worker.postMessage("stop");
        break;
      case "stopped":
        worker.postMessage("no-op");
        SimpleTest.finish();
        break;
      default:
        ok(false, "Unexpected message:" + event.data);
        SimpleTest.finish();
    }
  });

  var gotErrors = false;
  worker.onerror = function(event) {
    event.preventDefault();
    is(event.target, worker);
    is(event.message, "uncaught exception: Bad message: asdf");

    worker.onerror = function(otherEvent) {
      otherEvent.preventDefault();
      is(otherEvent.target, worker);
      is(otherEvent.message, "ReferenceError: Components is not defined");
      gotErrors = true;

      worker.onerror = function(oneMoreEvent) {
        ok(false, "Worker had an error:" + oneMoreEvent.message);
        SimpleTest.finish();
      };
    };
  };

  worker.postMessage("asdf");
  worker.postMessage("components");
  worker.postMessage("start");

  SimpleTest.waitForExplicitFinish();

</script>
</pre>
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