зеркало из https://github.com/mozilla/gecko-dev.git
35 строки
1.1 KiB
HTML
35 строки
1.1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1457051
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-->
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<head>
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<meta charset="utf-8">
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<title>Test for Bug 1457051</title>
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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<script type="application/javascript">
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/** Test for Bug 1457051 **/
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ok(Element.isInstance(document.documentElement), "Basic isInstance works");
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ok(!Element.isInstance(null),
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"Passing null should return false without throwing");
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ok(!Element.isInstance(5), "Passing 5 should return false without throwing");
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var obj = Object.create(Element.prototype);
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ok(obj instanceof Element, "instanceof should walk the proto chain");
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ok(!Element.isInstance(obj), "isInstance should be a pure brand check");
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</script>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1457051">Mozilla Bug 1457051</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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</pre>
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</body>
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</html>
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