<!
doctype html>
<
html>
<
head>
<
meta charset=
"utf-8">
<
title>This test validates that PerformanceResourceTiming
's toJSON method
contains all of the entry
's attributes.
<
link rel=
"author" title=
"Google" href=
"http://www.google.com/" />
<
link rel=
"help"
href=
"https://www.w3.org/TR/resource-timing-2/#dom-performanceresourcetiming-tojson">
<
script src=
"/resources/testharness.js"></
script>
<
script src=
"/resources/testharnessreport.js"></
script>
</
head>
<
body>
<
script>
promise_test(() => {
return new Promise((resolve, reject) => {
const po = new PerformanceObserver(list => {
const entries = list.getEntries();
if (entries.length < 1) {
throw new Error(`No entries to run the test with.`);
}
assert_greater_than_equal(entries.length, 1);
const entry = entries[0];
assert_equals(typeof(entry.toJSON),
'function');
const json = entry.toJSON();
assert_equals(typeof(json),
'object');
const performanceResourceTimingKeys = [
'name',
'entryType',
'startTime',
'duration',
'initiatorType',
'nextHopProtocol',
'workerStart',
'redirectStart',
'redirectEnd',
'fetchStart',
'domainLookupStart',
'domainLookupEnd',
'connectStart',
'connectEnd',
'secureConnectionStart',
'requestStart',
'responseStart',
'responseEnd',
'transferSize',
'encodedBodySize',
'decodedBodySize',
'renderBlockingStatus',
'responseStatus',
'contentType',
];
for (const key of performanceResourceTimingKeys) {
try {
assert_false(json[key] === undefined,
`entry.toJSON().${key} is undefined`);
assert_equals(json[key], entry[key],
`entry.toJSON().${key} should match entry.${key}`);
} catch(e) {
reject(e);
}
}
resolve();
});
po.observe({type:
"resource", buffered: true});
});
},
'Test toJSON() in PerformanceResourceTiming');
</
script>
</
body>
</
html>
