test_bug415498.xhtml

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<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin" type="text/css"?>

<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"

  type="text/css"?>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=415498

-->

<window title="Mozilla Bug 415498"

  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

  onload="init()">

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <script src="chrome://mochikit/content/chrome-harness.js"></script>

<body  xmlns="http://www.w3.org/1999/xhtml">

  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=415498">Mozilla Bug 415498</a>

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

  <pre id="test">

  <script class="testbody" type="application/javascript"><![CDATA[

    const {BrowserTestUtils} = ChromeUtils.importESModule(

      "resource://testing-common/BrowserTestUtils.sys.mjs"

);

    /** Test for Bug 415498 **/

    SimpleTest.waitForExplicitFinish();

    var gTestsIterator;

    var gConsole;

    var gConsoleListener;

    var gMessages = [];

    function init() {

      gTestsIterator = testsIterator();

      gConsole = Cc["@mozilla.org/consoleservice;1"].

                 getService(Ci.nsIConsoleService);

      gConsoleListener = {

        observe(aObject) {

          gMessages.push(aObject);

};

      gConsole.registerListener(gConsoleListener);

      nextTest();

    function nextTest() {

      let {done} = gTestsIterator.next();

      if (done) {

        if (gConsole && gConsoleListener) {

          gConsole.unregisterListener(gConsoleListener);

        SimpleTest.finish();

    function* testsIterator() {

      var browser = $("browser");

      browser.addEventListener("load", function() {

        setTimeout(nextTest, 0)

});

      // 1) This document uses addEventListener to register a method throwing an exception

      var chromeDir = getRootDirectory(window.location.href);

      BrowserTestUtils.startLoadingURIString(browser, chromeDir + "bug415498-doc1.html");

      yield undefined;

      ok(verifyErrorReceived("HierarchyRequestError"),

         "Error message not reported in event listener callback!");

      gMessages = [];

      // 2) This document sets window.onload to register a method throwing an exception

      var chromeDir = getRootDirectory(window.location.href);

      BrowserTestUtils.startLoadingURIString(browser, chromeDir + "bug415498-doc2.html");

      yield undefined;

      ok(verifyErrorReceived("HierarchyRequestError"),

         "Error message not reported in window.onload!");

    function verifyErrorReceived(errorString) {

      for (var i = 0; i < gMessages.length; i++) {

        if (gMessages[i].message.includes(errorString))

          return true;

      return false;

  ]]></script>

  </pre>

</body>

<browser id="browser" type="content" flex="1" src="about:blank"/>

</window>