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-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2012 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<!--
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.labs.observe.SimpleObservable</title>
-<script src="../../base.js"></script>
-<script>
- goog.require('goog.dispose');
- goog.require('goog.labs.observe.Observer');
- goog.require('goog.labs.observe.SimpleObservable');
- goog.require('goog.testing.jsunit');
- goog.require('goog.testing.recordFunction');
-</script>
-</head>
-<body>
-<script>
-var observable;
-
-
-function setUp() {
- observable = new goog.labs.observe.SimpleObservable();
-}
-
-
-function tearDown() {
- goog.dispose(observable);
-}
-
-
-function testObserve() {
- var observerFn = goog.testing.recordFunction();
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testObserveWithTheSameObserver() {
- var observerFn = goog.testing.recordFunction();
- var observer = goog.labs.observe.Observer.fromFunction(observerFn);
-
- assertTrue(observable.observe(observer));
- assertFalse(observable.observe(observer));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- observerFn.reset();
-
- // observer.equals(observer2) == true
- var observer2 = goog.labs.observe.Observer.fromFunction(observerFn);
- assertFalse(observable.observe(observer2));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testMultipleObservers() {
- var observerFn = goog.testing.recordFunction();
- var observerFn2 = goog.testing.recordFunction();
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn));
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn2));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- assertEquals(1, observerFn2.getCallCount());
-}
-
-
-function testUnobserve() {
- var observerFn = goog.testing.recordFunction();
- var observer = goog.labs.observe.Observer.fromFunction(observerFn);
- observable.observe(observer);
- assertTrue(observable.unobserve(observer));
- observable.notify();
- assertEquals(0, observerFn.getCallCount());
- assertFalse(observable.unobserve(observer));
-}
-
-
-function testNotice() {
- var observerFn = goog.testing.recordFunction(function(notice) {
- assertNotNull(notice);
- assertEquals(observable, notice.getObservable());
- assertUndefined(notice.getData());
- });
-
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testNoticeWithData() {
- var data = {foo: 1};
- var observerFn = goog.testing.recordFunction(function(notice) {
- assertNotNull(notice);
- assertEquals(observable, notice.getObservable());
- assertEquals(data, notice.getData());
- });
-
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn));
- observable.notify(data);
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testUnobserveWhileObserverIsFiring() {
- var observerFn = goog.testing.recordFunction(function() {
- observable.unobserve(observer);
- assertFalse(observable.unobserve(observer));
- });
- var observer = goog.labs.observe.Observer.fromFunction(observerFn);
- var observerFn2 = goog.testing.recordFunction();
- observable.observe(observer);
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn2));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- assertEquals(1, observerFn2.getCallCount());
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- assertEquals(2, observerFn2.getCallCount());
-}
-
-
-function testSimpleObservableAsComposition() {
- var observable = new ActualObservable();
-
- var observerFn = goog.testing.recordFunction(function(notice) {
- assertNotNull(notice);
- assertEquals(observable, notice.getObservable());
- assertUndefined(notice.getData());
- });
- var observer = goog.labs.observe.Observer.fromFunction(observerFn);
-
- observable.observe(observer);
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- observerFn.reset();
-}
-
-
-function testDispose() {
- var observerFn = function() {};
- var observer = goog.labs.observe.Observer.fromFunction(observerFn);
-
- observable.dispose();
- assertThrows(function() {
- observable.observe(observer);
- });
- assertThrows(function() {
- observable.notify();
- });
- assertThrows(function() {
- observable.observe(observer);
- });
-}
-
-
-
-/**
- * @constructor
- * @extends {goog.Disposable}
- */
-ActualObservable = function() {
- goog.base(this);
- this.observable_ = new goog.labs.observe.SimpleObservable(this);
- this.registerDisposable(this.observable_);
-};
-goog.inherits(ActualObservable, goog.Disposable);
-
-
-ActualObservable.prototype.observe = function(type, observer) {
- this.observable_.observe(type, observer);
-};
-
-
-ActualObservable.prototype.unobserve = function(type, observer) {
- this.observable_.unobserve(type, observer);
-};
-
-
-ActualObservable.prototype.notify = function(type, opt_data) {
- this.observable_.notify(type, opt_data);
-};
-
-</script>
-</body>
-</html>