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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.ObservationSet</title>
-<script src="../../base.js"></script>
-<script>
- goog.require('goog.dispose');
- goog.require('goog.labs.observe.Observer');
- goog.require('goog.labs.observe.ObservationSet');
- goog.require('goog.labs.observe.SimpleObservable');
- goog.require('goog.testing.jsunit');
- goog.require('goog.testing.recordFunction');
-</script>
-</head>
-<body>
-<script>
-var observable;
-var observable2;
-var observationSet;
-
-
-function setUp() {
- observable = new goog.labs.observe.SimpleObservable();
- observable2 = new goog.labs.observe.SimpleObservable();
- observationSet = new goog.labs.observe.ObservationSet();
-}
-
-
-function tearDown() {
- goog.dispose(observable);
- goog.dispose(observable2);
-}
-
-
-function testObserveObservesCorrectly() {
- var observerFn = goog.testing.recordFunction();
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testObserveDoesNotRegisterDuplicateObserver() {
- var observerFn = goog.testing.recordFunction();
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
- assertFalse(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testObserveWithMultipleObservers() {
- var observerFn = goog.testing.recordFunction();
- var observerFn2 = goog.testing.recordFunction();
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn2)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- assertEquals(1, observerFn2.getCallCount());
-}
-
-
-function testObserveWithFunction() {
- var observerFn = goog.testing.recordFunction();
- assertNotNull(observationSet.observeWithFunction(observable, observerFn));
- assertNull(observationSet.observeWithFunction(observable, observerFn));
- assertFalse(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testObserveWithFunctionAndScope() {
- var scope = {};
-
- var observerFn = goog.testing.recordFunction(function() {
- assertEquals(scope, this);
- });
- assertNotNull(observationSet.observeWithFunction(
- observable, observerFn, scope));
- assertNull(observationSet.observeWithFunction(
- observable, observerFn, scope));
- assertFalse(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn, scope)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-}
-
-
-function testObserveWithFunctionWithDefaultScope() {
- var scope = {};
- observationSet = new goog.labs.observe.ObservationSet(scope);
-
- var observerFn = goog.testing.recordFunction(function() {
- assertEquals(scope, this);
- });
-
- assertNotNull(observationSet.observeWithFunction(observable, observerFn));
- assertNull(observationSet.observeWithFunction(observable, observerFn));
- assertNull(observationSet.observeWithFunction(observable, observerFn, scope));
- assertFalse(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn, scope)));
-
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
-
- // This should succeed since we use observe method, defaultScope is
- // not used in this case.
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- // This should succeed since the scope is different.
- var scope2 = {};
- assertNotNull(observationSet.observeWithFunction(
- observable, observerFn, scope2));
-}
-
-
-function testUnobserveUnobservesCorrectly() {
- var observerFn = goog.testing.recordFunction();
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
- assertTrue(observationSet.unobserve(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- observable.notify();
- assertEquals(0, observerFn.getCallCount());
-}
-
-
-function testUnobserveDoesNotUnobserveObservationNotMadeByObservationSet() {
- var observerFn = goog.testing.recordFunction();
-
- // Observation via observable directly.
- observable.observe(goog.labs.observe.Observer.fromFunction(observerFn));
-
- assertFalse(observationSet.unobserve(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
- observable.notify();
- assertEquals(1, observerFn.getCallCount());
- observerFn.reset();
-
- // Observation via another ObservationSet.
- var observationSet2 = new goog.labs.observe.ObservationSet();
- observationSet2.observe(
- observable2, goog.labs.observe.Observer.fromFunction(observerFn));
-
- assertFalse(observationSet.unobserve(
- observable2, goog.labs.observe.Observer.fromFunction(observerFn)));
- observable2.notify();
- assertEquals(1, observerFn.getCallCount());
- observerFn.reset();
-}
-
-
-function testUnobserveWithFunction() {
- var observerFn = goog.testing.recordFunction();
- observationSet.observeWithFunction(observable, observerFn);
- assertTrue(observationSet.unobserveWithFunction(observable, observerFn));
- assertNotNull(observationSet.observeWithFunction(observable, observerFn));
- assertTrue(observationSet.unobserve(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
-
- observable.notify();
- assertEquals(0, observerFn.getCallCount());
-}
-
-
-function testUnobserveWithFunctionAndScope() {
- var scope = {};
-
- var observerFn = goog.testing.recordFunction();
- observationSet.observeWithFunction(
- observable, observerFn, scope);
- assertTrue(observationSet.unobserveWithFunction(
- observable, observerFn, scope));
- assertNotNull(observationSet.observeWithFunction(
- observable, observerFn, scope));
- assertTrue(observationSet.unobserve(
- observable, goog.labs.observe.Observer.fromFunction(observerFn, scope)));
-
- observable.notify();
- assertEquals(0, observerFn.getCallCount());
-}
-
-
-function testUnobserveWithFunctionWithDefaultScope() {
- var scope = {};
- observationSet = new goog.labs.observe.ObservationSet(scope);
-
- var observerFn = goog.testing.recordFunction();
- observationSet.observeWithFunction(observable, observerFn);
- assertTrue(observationSet.unobserveWithFunction(observable, observerFn));
-
- assertNotNull(observationSet.observeWithFunction(
- observable, observerFn, scope));
- assertTrue(observationSet.unobserveWithFunction(observable, observerFn));
-
- assertNotNull(observationSet.observeWithFunction(observable, observerFn));
- assertTrue(observationSet.unobserveWithFunction(
- observable, observerFn, scope));
-
- observable.notify();
- assertEquals(0, observerFn.getCallCount());
-}
-
-
-function testRemoveAllWithZeroObservation() {
- observationSet.removeAll();
-}
-
-
-function testRemoveAll() {
- var observerFn = goog.testing.recordFunction();
- var observerFn2 = goog.testing.recordFunction();
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn)));
- assertTrue(observationSet.observe(
- observable, goog.labs.observe.Observer.fromFunction(observerFn2)));
- assertTrue(observationSet.observe(
- observable2, goog.labs.observe.Observer.fromFunction(observerFn)));
- observationSet.removeAll();
-
- observable.notify();
- observable2.notify();
-
- assertEquals(0, observerFn.getCallCount());
- assertEquals(0, observerFn2.getCallCount());
-}
-</script>
-</body>
-</html>