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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>exception test of performance.mark and performance.measure</title>
<link rel="author" title="Intel" href="http://www.intel.com/" />
<link rel="help" href="https://w3c.github.io/user-timing/#extensions-performance-interface"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webperftestharness.js"></script>
</head>
<body>
<h1>Description</h1>
<p>This test validates exception scenarios of invoking mark() and measure() without parameter.</p>
<div id="log"></div>
<script>
test(function () {
assert_throws_js(TypeError, function () { window.performance.mark() });
}, "window.performance.mark() throws a TypeError exception when invoke without a parameter.");
test(function () {
assert_throws_js(TypeError, function () { window.performance.measure(); });
}, "window.performance.measure() throws a TypeError exception when invoke without a parameter.");
</script>
</body>
</html>
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