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// Copyright 2010 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide('goog.testing.events.EventObserverTest');
goog.setTestOnly('goog.testing.events.EventObserverTest');
goog.require('goog.array');
goog.require('goog.events');
goog.require('goog.events.Event');
goog.require('goog.events.EventTarget');
goog.require('goog.testing.events.EventObserver');
goog.require('goog.testing.jsunit');
// Return an event's type
function getEventType(e) {
return e.type;
}
function testGetEvents() {
var observer = new goog.testing.events.EventObserver();
var target = new goog.events.EventTarget();
goog.events.listen(target, ['foo', 'bar', 'baz'], observer);
var eventTypes = ['bar', 'baz', 'foo', 'qux', 'quux', 'corge', 'foo', 'baz'];
goog.array.forEach(eventTypes, goog.bind(target.dispatchEvent, target));
var replayEvents = observer.getEvents();
assertArrayEquals(
'Only the listened-for event types should be remembered',
['bar', 'baz', 'foo', 'foo', 'baz'],
goog.array.map(observer.getEvents(), getEventType));
assertArrayEquals(
['bar'], goog.array.map(observer.getEvents('bar'), getEventType));
assertArrayEquals(
['baz', 'baz'], goog.array.map(observer.getEvents('baz'), getEventType));
assertArrayEquals(
['foo', 'foo'], goog.array.map(observer.getEvents('foo'), getEventType));
}
function testHandleEvent() {
var events = [
new goog.events.Event('foo'), new goog.events.Event('bar'),
new goog.events.Event('baz')
];
var observer = new goog.testing.events.EventObserver();
goog.array.forEach(events, goog.bind(observer.handleEvent, observer));
assertArrayEquals(events, observer.getEvents());
assertArrayEquals([events[0]], observer.getEvents('foo'));
assertArrayEquals([events[1]], observer.getEvents('bar'));
assertArrayEquals([events[2]], observer.getEvents('baz'));
}
function testClear() {
var event = new goog.events.Event('foo');
var observer = new goog.testing.events.EventObserver();
observer.handleEvent(event);
assertArrayEquals([event], observer.getEvents());
observer.clear();
assertArrayEquals([], observer.getEvents());
var otherEvent = new goog.events.Event('baz');
observer.handleEvent(otherEvent);
assertArrayEquals([otherEvent], observer.getEvents());
}
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