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<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Event Timing: entries should be observable by its own frame.</title>
<meta name="timeout" content="long">
</head>
<body>
<button id='button'>Generate a 'click' event</button>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=resources/event-timing-support.js></script>
<img src=./resources/slow-image.py>
<iframe src=resources/event-timing-crossiframe-childframe.html></iframe>
<script>
let clickTimeMin;
let processingStartMin;
let onloadStart;
function validateEntries() {
const entries = performance.getEntriesByName('mousedown', 'event');
assert_equals(entries.length, 1,
"Observer of main frames should only capture main-frame event-timing entries."
);
const entry = entries[0];
verifyClickEvent(entry, true);
assert_greater_than(entry.processingStart, processingStartMin,
"The entry's processing start should be later than processingStartMin.");
assert_greater_than(onloadStart, entry.processingStart,
"onload should occur later than the entry's procesisng start.");
assert_greater_than(entry.startTime, clickTimeMin,
"The entry's start time should be later than clickTimeMin.");
assert_greater_than(onloadStart, entry.startTime,
"onload should occur later than the entry's start time.");
}
function validateChildFrameEntries(childFrameData) {
assert_equals(childFrameData.bufferedEntries.length, 1,
"Event Timing of child frames should only capture child-frame event-timing entries."
);
const entry = entries[0];
verifyClickEvent(entry);
assert_greater_than(entry.processingStart, childFrameData.processingStartMin,
"The entry's processing start should be later than the child frame's processingStartMin.");
assert_greater_than(childFrameData.onloadStart, entry.processingStart,
"Child frame's onload should occur later than the entry's processing \
start.");
assert_greater_than(entry.startTime, childFrameData.clickTimeMin,
"The entry's start time should be later than the child frame's \
clickTimeMin.");
assert_greater_than(childFrameData.onloadStart, entry.startTime,
"Child frame's onload should be later than the entry's start time.");
assert_array_equals(childFrameData.observedEntries,
childFrameData.bufferedEntries,
"The child frame's observed entries should be buffered as well.");
}
async_test(function(t) {
clickTimeMin = performance.now();
clickAndBlockMain('button');
processingStartMin = performance.now();
const childFrameEntriesPromise = new Promise((resolve, reject) => {
window.addEventListener("message", (event) => {
resolve(event.data);
}, false);
});
on_event(window, 'load', e => {
onloadStart = performance.now();
childFrameEntriesPromise.then((entries) => {
t.step(() => {
validateChildFrameEntries(entries);
validateEntries();
});
t.done();
});
});
}, "Event Timing: entries should only be observable by its own frame.");
</script>
</body>
</html>
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