test_sharedChromeCompartment.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1517694

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 1517694</title>

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

  <link rel="stylesheet" type="text/css" href="chrome://global/skin"/>

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

  <script type="application/javascript">

"use strict";

/** Test for Bug 1517694 **/

const { XPCOMUtils } = ChromeUtils.importESModule(

  "resource://gre/modules/XPCOMUtils.sys.mjs"

);

SimpleTest.waitForExplicitFinish();

function go() {

    var frame = $('subframe');

    frame.onload = null;

    var isSameCompartment = Cu.getJSTestingFunctions().isSameCompartment;

    ok(isSameCompartment(window, frame.contentWindow),

       "System window is in same compartment");

    var sameCompSb = Cu.Sandbox(window);

    ok(isSameCompartment(window, sameCompSb),

       "System sandbox is in same compartment");

    var ownCompSb = Cu.Sandbox(window, {freshCompartment: true});

    ok(!isSameCompartment(window, ownCompSb),

       "Sandbox created with freshCompartment is in separate compartment");

    // Sandbox created in fresh-compartment sandbox must be in shared

    // compartment.

    var sb = Cu.evalInSandbox(`

      let principal =

        Cc["@mozilla.org/systemprincipal;1"].getService(Ci.nsIPrincipal);

      Cu.Sandbox(principal)

    `, ownCompSb);

    ok(isSameCompartment(window, sb),

       "System sandbox created in different compartment is in system compartment");

    ok(isSameCompartment(window, XPCOMUtils),

       "Object defined in JSM is in same compartment");

    SimpleTest.finish();

  </script>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1517694">Mozilla Bug 1517694</a>

<iframe id="subframe" src="file_empty.html" onload="go()"></iframe>

</body>

</html>