Add new spec to test converse.js's API. Fixes #48

spec/converse.js

@@ -0,0 +1,65 @@
+(function (root, factory) {
+    define([
+        "mock",
+        "utils"
+        ], function (mock, utils) {
+            return factory(mock, utils);
+        }
+    );
+} (this, function (mock, utils) {
+    return describe("Converse", $.proxy(function(mock, utils) {
+        it("allows you to subscribe to emitted events", function () {
+            this.callback = function () {};
+            spyOn(this, 'callback');
+            converse.on('onInitialized', this.callback);
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 2);
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 3);
+        });
+
+        it("allows you to listen once for an emitted event", function () {
+            this.callback = function () {};
+            spyOn(this, 'callback');
+            converse.once('onInitialized', this.callback);
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+        });
+
+        it("allows you to stop listening or subscribing to an event", function () {
+            this.callback = function () {};
+            this.anotherCallback = function () {};
+            this.neverCalled = function () {};
+
+            spyOn(this, 'callback');
+            spyOn(this, 'anotherCallback');
+            spyOn(this, 'neverCalled');
+            converse.on('onInitialized', this.callback);
+            converse.on('onInitialized', this.anotherCallback);
+
+            converse.emit('onInitialized');
+            expect(this.callback).toHaveBeenCalled();
+            expect(this.anotherCallback).toHaveBeenCalled();
+
+            converse.off('onInitialized', this.callback);
+
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            expect(this.anotherCallback.callCount, 2);
+
+            converse.once('onInitialized', this.neverCalled);
+            converse.off('onInitialized', this.neverCalled);
+
+            converse.emit('onInitialized');
+            expect(this.callback.callCount, 1);
+            expect(this.anotherCallback.callCount, 3);
+            expect(this.neverCalled).not.toHaveBeenCalled();
+        });
+    }, converse, mock, utils));
+}));