1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/tests/mochitest/bugs/test_protochains.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,59 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=817420
1.8 +-->
1.9 +<head>
1.10 + <meta charset="utf-8">
1.11 + <title>Test for Bug 817420</title>
1.12 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.13 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.14 +</head>
1.15 +<body>
1.16 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=817420">Mozilla Bug 817420</a>
1.17 +<p id="display"></p>
1.18 +<div id="content" style="display: none">
1.19 +
1.20 +</div>
1.21 +<pre id="test">
1.22 +<script type="application/javascript">
1.23 +
1.24 +/** Test for Bug 817420 **/
1.25 +is(Object.getPrototypeOf(HTMLElement.prototype), Element.prototype,
1.26 + "Must have correct proto chain for HTMLElement.prototype");
1.27 +is(Object.getPrototypeOf(document.createElementNS(null, "x")),
1.28 + Element.prototype,
1.29 + "Must have correct proto chain for random element");
1.30 +is(Object.getPrototypeOf(document.createElement("noSuchElementName")),
1.31 + HTMLUnknownElement.prototype,
1.32 + "Must have correct proto chain for random HTML element");
1.33 +
1.34 +// And check that it's really working as it should
1.35 +function checkPropPresent(propName, objList, expected)
1.36 +{
1.37 + for (obj of objList) {
1.38 + is(propName in obj,
1.39 + expected,
1.40 + obj + " should " + (expected ? "" : "not ") + "have the property");
1.41 + }
1.42 +}
1.43 +var objList = [ Element.prototype,
1.44 + HTMLElement.prototype,
1.45 + document.createElementNS(null, "x"),
1.46 + document.createElement("noSuchElementName"),
1.47 + document.body ]
1.48 +checkPropPresent("somePropertyThatBetterNeverExist", objList, false);
1.49 +Element.prototype.somePropertyThatBetterNeverExist = 1;
1.50 +checkPropPresent("somePropertyThatBetterNeverExist", objList, true);
1.51 +
1.52 +objList = [ HTMLElement.prototype,
1.53 + document.createElement("noSuchElementName"),
1.54 + document.body ]
1.55 +checkPropPresent("someOtherPropertyThatBetterNeverExist", objList, false);
1.56 +HTMLElement.prototype.someOtherPropertyThatBetterNeverExist = 1;
1.57 +checkPropPresent("someOtherPropertyThatBetterNeverExist", objList, true);
1.58 +
1.59 +</script>
1.60 +</pre>
1.61 +</body>
1.62 +</html>
