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<!DOCTYPE html>
<html>
<meta charset=utf-8 />
<title>Event Timing: orphan keydown.</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-actions.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src=resources/event-timing-test-utils.js></script>
<body>
<button id='target'>Click me</button>
<script>
let observedEntries = [];
const map = new Map();
const events = ['keydown'];
promise_test(async t => {
assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.');
const callback = (entryList) => {observedEntries = observedEntries.concat(entryList.getEntries().filter(filterAndAddToMap(events, map))); };
const readyToResolve = () => { return observedEntries.length >= 1; };
const observerPromise = createPerformanceObserverPromise(['event'], callback, readyToResolve);
await interactAndObserve('orphan-keydown', document.getElementById('target'), observerPromise);
assert_equals(observedEntries.length, 1, "Keydown without a keyup should be fired properly.");
assert_greater_than(map.get('keydown'), 0, "Should have a non-trivial interactionId.")
}, "Event Timing: Orphan keydown should be measured as an interaction.");
</script>
</body>
</html>
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