<!DOCTYPE html>
<!--
Copyright (c) 2014 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/base/event_target.html">
<link rel="import" href="/base/event.html">
<script>
'use strict';

tr.b.unittest.testSuite(function() {
  test('eventTargetHelper', function() {
    var listenerCallCount = 0;
    function listener() { listenerCallCount++; }

    var div = new tr.b.EventTarget();
    tr.b.EventTargetHelper.decorate(div);

    assert.isFalse(div.hasEventListener('foo'));

    div.addEventListener('foo', listener);
    assert.isTrue(div.hasEventListener('foo'));

    tr.b.dispatchSimpleEvent(div, 'foo');
    assert.equal(listenerCallCount, 1);

    div.removeEventListener('foo', listener);

    tr.b.dispatchSimpleEvent(div, 'foo');
    assert.equal(listenerCallCount, 1);

    assert.isFalse(div.hasEventListener('foo'));
  });
});
</script>