Add LiveQuery

spec/EventEmitterPubSub.spec.js

@@ -0,0 +1,44 @@
+var EventEmitterPubSub = require('../src/LiveQuery/EventEmitterPubSub').EventEmitterPubSub;
+
+describe('EventEmitterPubSub', function() {
+
+  it('can publish and subscribe', function() {
+    var publisher = EventEmitterPubSub.createPublisher();
+    var subscriber = EventEmitterPubSub.createSubscriber();
+    subscriber.subscribe('testChannel');
+    // Register mock checked for subscriber
+    var isChecked = false;
+    subscriber.on('message', function(channel, message) {
+      isChecked = true;
+      expect(channel).toBe('testChannel');
+      expect(message).toBe('testMessage');
+    });
+
+    publisher.publish('testChannel', 'testMessage');
+    // Make sure the callback is checked
+    expect(isChecked).toBe(true);
+  });
+
+  it('can unsubscribe', function() {
+    var publisher = EventEmitterPubSub.createPublisher();
+    var subscriber = EventEmitterPubSub.createSubscriber();
+    subscriber.subscribe('testChannel');
+    subscriber.unsubscribe('testChannel');
+    // Register mock checked for subscriber
+    var isCalled = false;
+    subscriber.on('message', function(channel, message) {
+      isCalled = true;
+    });
+
+    publisher.publish('testChannel', 'testMessage');
+    // Make sure the callback is not called
+    expect(isCalled).toBe(false);
+  });
+
+  it('can unsubscribe not subscribing channel', function() {
+    var subscriber = EventEmitterPubSub.createSubscriber();
+
+    // Make sure subscriber does not throw exception
+    subscriber.unsubscribe('testChannel');
+  });
+});