test_executeInGlobal-outerized_this.html

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<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=837060

When we use Debugger.Object.prototype.executeInGlobal, the 'this' value seen

by the evaluated code should be the WindowProxy, not the inner window

object.

-->

<head>

  <meta charset="utf-8">

  <title>Mozilla Bug 837060</title>

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

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

</head>

<body>

<pre id="test">

<script>

"use strict";

const {addDebuggerToGlobal} = ChromeUtils.importESModule("resource://gre/modules/jsdebugger.sys.mjs");

addDebuggerToGlobal(globalThis);

window.onload = function() {

  SimpleTest.waitForExplicitFinish();

  const iframe = document.createElement("iframe");

  iframe.src = "data:text/html,<script>var me = 'page 1';<\/script>";

  iframe.onload = firstOnLoadHandler;

  document.body.appendChild(iframe);

  function firstOnLoadHandler() {

    const dbg = new Debugger();

    const page1DO = dbg.addDebuggee(iframe.contentWindow);

    iframe.src = "data:text/html,<script>var me = 'page 2';<\/script>";

    iframe.onload = function() {

      const page2DO = dbg.addDebuggee(iframe.contentWindow);

      ok(page1DO !== page2DO, "the two pages' globals get distinct D.O's");

      ok(page1DO.unsafeDereference() === page2DO.unsafeDereference(),

         "unwrapping page1DO and page2DO outerizes both, yielding the same outer window");

      is(page1DO.executeInGlobal("me").return,

         "page 1", "page1DO continues to refer to original page");

      is(page2DO.executeInGlobal("me").return, "page 2",

         "page2DO refers to current page");

      is(page1DO.executeInGlobal("this === window").return, true,

         "page 1: Debugger.Object.prototype.executeInGlobal should outerize 'this'");

      is(page1DO.executeInGlobalWithBindings("this === window", {x: 2}).return, true,

         "page 1: Debugger.Object.prototype.executeInGlobal should outerize 'this'");

      is(page2DO.executeInGlobal("this === window").return, true,

         "page 2: Debugger.Object.prototype.executeInGlobal should outerize 'this'");

      is(page2DO.executeInGlobalWithBindings("this === window", {x: 2}).return, true,

         "page 2: Debugger.Object.prototype.executeInGlobal should outerize 'this'");

      // Debugger doesn't let one use outer windows as globals. You have to innerize.

      const outerDO = page1DO.makeDebuggeeValue(page1DO.unsafeDereference());

      ok(outerDO !== page1DO,

         "outer window gets its own D.O, distinct from page 1's global");

      ok(outerDO !== page2DO,

         "outer window gets its own D.O, distinct from page 2's global");

      SimpleTest.doesThrow(() => outerDO.executeInGlobal("me"),

                           "outer window D.Os can't be used as globals");

      SimpleTest.finish();

};

};

</script>

</pre>

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