Add RouteStore spec

Author: mjackson

modules/stores/RouteStore.js

@@ -80,7 +80,7 @@ var RouteStore = {
    * Returns the Route object with the given name, if one exists.
    */
   getRouteByName: function (routeName) {
-    return _namedRoutes[routeName];
+    return _namedRoutes[routeName] || null;
   }
 
 };

specs/RouteStore.spec.js

@@ -0,0 +1,32 @@
+require('./helper');
+var RouteStore = require('../modules/stores/RouteStore');
+var Route = require('../modules/components/Route');
+
+var App = React.createClass({
+  displayName: 'App',
+  render: function () {
+    return React.DOM.div();
+  }
+});
+
+describe('when a route with a given name is not present', function () {
+  it('returns null', function () {
+    expect(RouteStore.getRouteByName('products')).toBe(null);
+  });
+});
+
+describe('when a route is looked up by name', function () {
+  var route;
+  beforeEach(function () {
+    route = Route({ name: 'products', handler: App });
+    RouteStore.registerRoute(route);
+  });
+
+  afterEach(function () {
+    RouteStore.unregisterRoute(route);
+  });
+
+  it('returns that route', function () {
+    expect(RouteStore.getRouteByName('products')).toEqual(route);
+  });
+});