interactionid-tap.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /event-timing/interactionid-tap.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<meta charset=utf-8 />

<title>Event Timing: interactionId-tap.</title>

<button id='testButtonId'>Tap</button>

<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>

<script>

  let observedEntries = [];

  const map = new Map();

  const events = ['pointerdown', 'pointerup'];

  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 >= 2; };

    const observerPromise = createPerformanceObserverPromise(['event'], callback, readyToResolve);

    await interactAndObserve('tap', document.getElementById('testButtonId'), observerPromise);

    events.forEach(e => assert_greater_than(map.get(e), 0, 'Should have a non-trivial interactionId for ' + e + ' event'));

    assert_equals(map.get('pointerdown'), map.get('pointerup'), 'The pointerdown and the pointerup should have the same interactionId');

  }, "Event Timing: compare event timing interactionId for tap.");

</script>

</html>