src/third_party/web_platform_tests/dom/events/Event-dispatch-omitted-capture.html

<!DOCTYPE html>
<meta charset=utf-8>
<title>EventTarget.addEventListener: capture argument omitted</title>
<link rel="help" href="https://dom.spec.whatwg.org/#dom-eventtarget-addeventlistener">
<link rel="help" href="https://dom.spec.whatwg.org/#concept-event-dispatch">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<table id="table" border="1" style="display: none">
    <tbody id="table-body">
    <tr id="table-row">
        <td id="table-cell">Shady Grove</td>
        <td>Aeolian</td>
    </tr>
    <tr id="parent">
        <td id="target">Over the river, Charlie</td>
        <td>Dorian</td>
    </tr>
    </tbody>
</table>
<script>
test(function() {
    var event_type = "foo";
    var target = document.getElementById("target");
    var targets = [
        target,
        document.getElementById("parent"),
        document.getElementById("table-body"),
        document.getElementById("table"),
        document.body,
        document.documentElement,
        document,
        window
    ];
    var phases = [
        Event.AT_TARGET,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE,
        Event.BUBBLING_PHASE
    ];

    var actual_targets = [], actual_phases = [];
    var test_event = function(evt) {
        actual_targets.push(evt.currentTarget);
        actual_phases.push(evt.eventPhase);
    }

    for (var i = 0; i < targets.length; i++) {
        targets[i].addEventListener(event_type, test_event);
    }

    var evt = document.createEvent("Event");
    evt.initEvent(event_type, true, true);

    target.dispatchEvent(evt);

    for (var i = 0; i < targets.length; i++) {
        targets[i].removeEventListener(event_type, test_event);
    }

    target.dispatchEvent(evt);

    assert_array_equals(actual_targets, targets, "targets");
    assert_array_equals(actual_phases, phases, "phases");
}, "EventTarget.addEventListener with the capture argument omitted");
</script>