dom/bindings/test/test_InstanceOf.html@b8a032363ba2
dom/bindings/test/test_InstanceOf.html
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 <!DOCTYPE HTML>
2 <html>
3 <!--
4 https://bugzilla.mozilla.org/show_bug.cgi?id=748983
5 -->
6 <head>
7 <meta charset="utf-8">
8 <title>Test for Bug 748983</title>
9 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
11 </head>
12 <body>
13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=748983">Mozilla Bug 748983</a>
14 <p id="display"></p>
15 <div id="content" style="display: none">
16 </div>
17 <pre id="test">
18 <script type="application/javascript">
20 /** Test for Bug 748983 **/
22 SimpleTest.waitForExplicitFinish();
24 function runTest()
25 {
26 ok(document instanceof EventTarget, "document is an event target")
27 ok(new XMLHttpRequest() instanceof XMLHttpRequest, "instanceof should work on XHR");
28 ok(HTMLElement.prototype instanceof Node, "instanceof needs to walk the prototype chain")
30 var otherWin = document.getElementById("testFrame").contentWindow;
32 ok(otherWin.HTMLElement.prototype instanceof otherWin.Node, "Same-origin instanceof of a interface prototype object should work, even if called cross-origin");
33 ok(!(otherWin.HTMLElement.prototype instanceof Node), "Cross-origin instanceof of a interface prototype object shouldn't work");
35 // We need to reset HTMLElement.prototype.__proto__ to the original value
36 // before using anything from the harness, otherwise the harness code breaks
37 // in weird ways.
38 HTMLElement.prototype.__proto__ = otherWin.Element.prototype;
39 var [ shouldSucceed, shouldFail ] = otherWin.runTest();
40 shouldSucceed = shouldSucceed && HTMLElement.prototype instanceof otherWin.Element;
41 shouldFail = shouldFail && HTMLElement.prototype instanceof Element;
42 HTMLElement.prototype.__proto__ = Element.prototype;
44 ok(shouldSucceed, "If an interface prototype object is on the protochain then instanceof with the interface object should succeed");
45 ok(!shouldFail, "If an interface prototype object is not on the protochain then instanceof with the interface object should succeed");
47 SimpleTest.finish();
48 }
50 </script>
51 </pre>
52 <iframe id="testFrame" src="file_InstanceOf.html" onload="runTest()"></iframe>
53 </body>
54 </html>
