interactionid-click.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-click.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<meta charset=utf-8 />

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

<button id='button'>Click me.</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-test-utils.js></script>

<script>

  let observedEntries = [];

  let map = new Map();

  function eventsForCheck(entry) {

      if (entry.name === 'pointerdown' || entry.name === 'pointerup' || entry.name === 'click'

      || entry.name === 'mousedown' || entry.name === 'mouseup') {

        map.set(entry.name, entry.interactionId);

        return true;

      return false;

  async_test(function(t) {

    assert_implements(window.PerformanceEventTiming, 'Event Timing is not supported.');

    addListenersAndClick(document.getElementById('button')).then(() => {

      new PerformanceObserver(t.step_func(entryList => {

        observedEntries = observedEntries.concat(entryList.getEntries().filter(eventsForCheck));

        if (observedEntries.length < 5)

          return;

        assert_equals(map.get('mousedown'), 0, 'Should not have a interactionId');

        assert_equals(map.get('mouseup'), 0, 'Should not have a interactionId');

        assert_greater_than(map.get('pointerdown'), 0, 'Should have a non-trivial interactionId');

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

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

        t.done();

      })).observe({ type: 'event', buffered: true });

});

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

</script>

</html>