Test specs added for locale methods and parseKey method.

Author: rmariuzzo

js/lang.js

@@ -108,6 +108,9 @@
      * @return {object} A key object with main and sub properties.
      */
     Lang.prototype.parseKey = function(key) {
+        if (typeof key !== 'string') {
+            return null;
+        }
         var segments = key.split('.');
         var subKey = segments.pop();
         segments.unshift(this.getLocale());

tests/spec/lang_locale_spec.js

@@ -0,0 +1,38 @@
+'use strict';
+
+var util = require('util');
+var Lang = new(require('../../js/lang.js'))();
+var messages = require('./data/messages');
+
+Lang.setMessages(messages);
+
+describe('The Lang\'s locale methods', function() {
+
+    it('should have a getLocale', function() {
+        expect(Lang.getLocale).toBeDefined();
+        expect(typeof Lang.getLocale).toBe('function');
+    });
+
+    it('should have a setLocale', function() {
+        expect(Lang.setLocale).toBeDefined();
+        expect(typeof Lang.setLocale).toBe('function');
+    });
+
+    it('should return the default locale', function() {
+        expect(Lang.getLocale()).toBe('en');
+    });
+
+    it('should return the locale specified', function() {
+        Lang.setLocale('es');
+        expect(Lang.getLocale()).toBe('es');
+    });
+
+    it('should affect messages', function() {
+        Lang.setLocale('es');
+        var es = Lang.get('messages.home');
+        Lang.setLocale('en');
+        var en = Lang.get('messages.home');
+        expect(es).not.toBe(en);
+    });
+
+});

tests/spec/lang_parseKey_spec.js

@@ -0,0 +1,31 @@
+'use strict';
+
+var util = require('util');
+var Lang = new(require('../../js/lang.js'))();
+var messages = require('./data/messages');
+
+Lang.setMessages(messages);
+
+describe('The Lang.parseKey() method', function() {
+
+    it('should exists', function() {
+        expect(Lang.parseKey).toBeDefined();
+    });
+
+    it('should be a function', function() {
+        expect(typeof Lang.parseKey).toBe('function');
+    });
+
+    it('should parse keys correctly', function() {
+        expect(Lang.parseKey(null)).toBe(null);
+        expect(Lang.parseKey('foo')).toEqual({
+            main: 'en',
+            sub: 'foo'
+        });
+        expect(Lang.parseKey('foo.bar')).toEqual({
+            main: 'en.foo',
+            sub: 'bar'
+        });
+    });
+
+});