event-counts-zero.html

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This WPT test may be referenced by the following Test IDs:
- /event-timing/event-counts-zero.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<meta charset=utf-8 />

<title>Event Timing: eventCounts.</title>

<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>

  test(() => {

    assert_implements(window.EventCounts, "Event Counts isn't supported");

    const eventTypes = [

        'auxclick',

        'click',

        'contextmenu',

        'dblclick',

        'mousedown',

        'mouseenter',

        'mouseleave',

        'mouseout',

        'mouseover',

        'mouseup',

        'pointerover',

        'pointerenter',

        'pointerdown',

        'pointerup',

        'pointercancel',

        'pointerout',

        'pointerleave',

        'gotpointercapture',

        'lostpointercapture',

        'touchstart',

        'touchend',

        'touchcancel',

        'keydown',

        'keypress',

        'keyup',

        'beforeinput',

        'input',

        'compositionstart',

        'compositionupdate',

        'compositionend',

        'dragstart',

        'dragend',

        'dragenter',

        'dragleave',

        'dragover',

        'drop'

];

    eventTypes.forEach(type => {

      assert_equals(performance.eventCounts.get(type), 0, 'There is a nonzero value for ' + type);

})

    assert_equals(performance.eventCounts.size, eventTypes.length,

        'The size of performance.eventCounts is incorrect.');

})

</script>

</html>