test_bug720619.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=720619

-->

<window title="Mozilla Bug 720619"

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

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

  <!-- test results are displayed in the html:body -->

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

  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=720619"

     target="_blank">Mozilla Bug 720619</a>

  <!-- test code goes here -->

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

  /** Test for Bug 720619 **/

  var obj = {

    valueOf () {

      return 42;

},

    toString () {

      return 'str';

};

  var content = new Cu.Sandbox("about:blank");

  content.obj = obj;

  ok(Cu.evalInSandbox("obj + ''", content) == "[object Object]");

  ok(Cu.evalInSandbox("'' + obj", content) == "[object Object]");

  ok(isNaN(Cu.evalInSandbox("obj - 0", content)));

  ok(Cu.evalInSandbox("String(obj)", content) == "[object Object]");

  var chrome = new Cu.Sandbox(window);

  chrome.obj = obj;

  ok(Cu.evalInSandbox("obj + ''", chrome) == "42");

  ok(Cu.evalInSandbox("'' + obj", chrome) == "42");

  ok(Cu.evalInSandbox("obj - 0", chrome) == 42);

  ok(Cu.evalInSandbox("String(obj)", chrome) == "str");

  ]]></script>

  </body>

</window>