Fix unit tests

src/app/contact/contact.component.spec.ts

@@ -1,14 +1,23 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import {RouterTestingModule} from '@angular/router/testing';
 
 import { ContactComponent } from './contact.component';
+import { Angulartics2 } from 'angulartics2';
 
 describe('ContactComponent', () => {
   let component: ContactComponent;
   let fixture: ComponentFixture<ContactComponent>;
 
   beforeEach(async(() => {
+    const analytics = jasmine.createSpyObj('piwik', ['startTracking']);
     TestBed.configureTestingModule({
-      declarations: [ ContactComponent ]
+      imports: [
+        RouterTestingModule,
+      ],
+      declarations: [ ContactComponent ],
+      providers: [
+        { provide: Angulartics2, useValue: analytics },
+      ],
     })
     .compileComponents();
   }));