feat(redirect): enable redirect from the app router by option

Fixes #51

src/navigation-commands.js

@@ -16,8 +16,9 @@ export function isNavigationCommand(obj){
 * @param {String} url The url to redirect to.
 */
 export class Redirect{
-  constructor(url) {
+  constructor(url, options) {
     this.url = url;
+    this.options = Object.assign({ trigger: true, replace: true }, options || {});
     this.shouldContinueProcessing = false;
   }
 
@@ -38,6 +39,7 @@ export class Redirect{
   * @param {Router} appRouter - a router which should redirect
   */
   navigate(appRouter){
-    (this.router || appRouter).navigate(this.url, { trigger: true, replace: true });
+    var navigatingRouter = this.options.useAppRouter ? appRouter : (this.router || appRouter);
+    navigatingRouter.navigate(this.url, this.options);
   }
 }

test/navigation-commands.spec.js

@@ -1,4 +1,5 @@
 import {Redirect, isNavigationCommand} from '../src/navigation-commands';
+import core from 'core-js';
 
 describe('isNavigaionCommand', () => {
   it('should return true for object which has a navigate method', () => {
@@ -27,10 +28,37 @@ describe('Redirect', () => {
           }
         };
 
+    redirect.setRouter(mockrouter);
+
     expect(mockrouter.url).toBe('');
 
     redirect.navigate(mockrouter);
 
     expect(mockrouter.url).toBe(testurl);
   });
-});
+
+  it('should accept options in constructor to use the app router', () => {
+    var testurl = 'http://aurelia.io/',
+        redirect = new Redirect(testurl, {useAppRouter:true}),
+        mockrouter = {
+          url: '',
+          navigate(url) {
+        	 this.url = url;
+          }
+        },
+        mockapprouter = {
+          url: '',
+          navigate(url) {
+        	 this.url = url;
+          }
+        };
+
+    redirect.setRouter(mockrouter);
+
+    expect(mockapprouter.url).toBe('');
+
+    redirect.navigate(mockapprouter);
+
+    expect(mockapprouter.url).toBe(testurl);
+  });
+});