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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>window.performance User Timing mark() method is throwing the proper exceptions</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="help" href="http://w3c.github.io/user-timing/#dom-performance-mark"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webperftestharness.js"></script>
<script>
function test_exception(attrName) {
test(function () {
assert_throws(new SyntaxError(), function () {
window.performance.mark(attrName);
})
}, "window.performance.mark(\"" + attrName + "\") throws a SyntaxError exception.");
}
test(() => {
assert_throws(new TypeError(), function() {
window.performance.mark();
});
}, 'window.performance.mark() throws a TypeError exception.')
// loop through mark scenarios
for (var i in timingAttributes) {
test_exception(timingAttributes[i]);
}
</script>
</head>
<body>
<h1>Description</h1>
<p>This test validates that the performance.mark() method throws a SYNTAX_ERR exception whenever a navigation
timing attribute is provided for the name parameter.
</p>
<div id="log"></div>
</body>
</html>
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