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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Navigation Timing 2 WPT</title>
<link rel="author" title="Google" href="http://www.google.com/" />
<link rel="help" href="http://www.w3.org/TR/navigation-timing-2/#sec-PerformanceNavigationTiming"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<h1>Description</h1>
<p>This test validates that PerformanceObserver can observe nav timing 2 instance and that the expected attributes in nav timing 2 instance exist (but does not validate that the values are correct).</p>
<script>
var navTiming2Attributes = [
'connectEnd',
'connectStart',
'decodedBodySize',
'domComplete',
'domContentLoadedEventEnd',
'domContentLoadedEventStart',
'domInteractive',
'domainLookupEnd',
'domainLookupStart',
'duration',
'encodedBodySize',
'entryType',
'fetchStart',
'initiatorType',
'loadEventEnd',
'loadEventStart',
'name',
'nextHopProtocol',
'redirectCount',
'redirectEnd',
'redirectStart',
'requestStart',
'responseEnd',
'responseStart',
'secureConnectionStart',
'transferSize',
'type',
'unloadEventEnd',
'unloadEventStart',
'workerStart'
];
async_test(function (t) {
var observer = new PerformanceObserver(
t.step_func(function (entryList) {
var entries = entryList.getEntries();
assert_equals(entries.length, 1,
"There should be only one navigation timing instance.");
for (var i = 0; i < navTiming2Attributes.length; i++) {
assert_true(navTiming2Attributes[i] in entries[0],
"Expected attribute: " + navTiming2Attributes[i] + ".");
}
observer.disconnect();
t.done();
})
);
observer.observe({entryTypes: ["navigation"]});
}, "Performance navigation timing entries are observable.");
</script>
</body>
</html>
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