fix like test

lib/content-services/social/like.component.spec.ts

@@ -19,22 +19,23 @@ import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 import { LikeComponent } from './like.component';
 import { setupTestBed } from '../../core/testing';
 import { ContentTestingModule } from '../testing/content.testing.module';
-
-declare let jasmine: any;
+import { Observable } from 'rxjs/Observable';
+import { RatingService } from './services/rating.service';
 
 describe('Like component', () => {
 
     let component: any;
     let fixture: ComponentFixture<LikeComponent>;
     let element: HTMLElement;
+    let service: RatingService;
 
     setupTestBed({
         imports: [ContentTestingModule]
     });
 
     beforeEach(() => {
-        jasmine.Ajax.install();
         fixture = TestBed.createComponent(LikeComponent);
+        service = TestBed.get(RatingService);
 
         element = fixture.nativeElement;
         component = fixture.componentInstance;
@@ -42,25 +43,20 @@ describe('Like component', () => {
         fixture.detectChanges();
     });
 
-    afterEach(() => {
-        fixture.destroy();
-        jasmine.Ajax.uninstall();
-    });
-
     function simulateResponseWithLikes(numberOfRatings: number) {
-        jasmine.Ajax.requests.mostRecent().respondWith({
-            status: 200, contentType: 'json',
-            responseText: {
-                entry: { id: 'likes', aggregate: { numberOfRatings } }
+        spyOn(service, 'getRating').and.returnValue(Observable.of({
+            entry: {
+                id: 'likes',
+                aggregate: { numberOfRatings }
             }
-        });
+        }));
     }
 
     it('should load the likes by default on onChanges', async(() => {
-        component.ngOnChanges();
-
         simulateResponseWithLikes(2);
 
+        component.ngOnChanges();
+
         fixture.whenStable().then(() => {
             fixture.detectChanges();
             expect(element.querySelector('#adf-like-counter').innerHTML).toBe('2');
@@ -68,6 +64,8 @@ describe('Like component', () => {
     }));
 
     it('should increase the number of likes when clicked', async(() => {
+        simulateResponseWithLikes(3);
+
         component.likesCounter = 2;
 
         let likeButton: any = element.querySelector('#adf-like-test-id');
@@ -78,10 +76,11 @@ describe('Like component', () => {
             expect(element.querySelector('#adf-like-counter').innerHTML).toBe('3');
         });
 
-        simulateResponseWithLikes(3);
     }));
 
     it('should decrease the number of likes when clicked and is already liked', async(() => {
+        simulateResponseWithLikes(1);
+
         component.likesCounter = 2;
         component.isLike = true;
 
@@ -93,6 +92,5 @@ describe('Like component', () => {
             expect(element.querySelector('#adf-like-counter').innerHTML).toBe('1');
         });
 
-        simulateResponseWithLikes(1);
     }));
 });