test(aio): remove dross from NavMenuComponent spec

aio/src/app/layout/nav-menu/nav-menu.component.spec.ts

@@ -1,26 +1,18 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { CUSTOM_ELEMENTS_SCHEMA } from '@angular/core';
 
-import { BehaviorSubject } from 'rxjs/BehaviorSubject';
-
 import { NavMenuComponent } from './nav-menu.component';
-import { CurrentNode, NavigationService, NavigationViews, NavigationNode } from 'app/navigation/navigation.service';
-
 
 describe('NavMenuComponent', () => {
   let component: NavMenuComponent;
   let fixture: ComponentFixture<NavMenuComponent>;
 
-  beforeEach(async(() => {
+  beforeEach(() => {
     TestBed.configureTestingModule({
       declarations: [ NavMenuComponent ],
-      providers: [
-        {provide: NavigationService, useClass: TestNavigationService }
-      ],
       schemas: [CUSTOM_ELEMENTS_SCHEMA]
-    })
-    .compileComponents();
-  }));
+    });
+  });
 
   beforeEach(() => {
     fixture = TestBed.createComponent(NavMenuComponent);
@@ -31,23 +23,6 @@ describe('NavMenuComponent', () => {
   it('should create', () => {
     expect(component).toBeTruthy();
   });
+
+  // TODO: Add TestHostComponent and tests.
 });
-
-//// Test Helpers ////
-class TestNavigationService {
-  navJson = {
-    SideNav:  [
-      { title: 'a', children: [
-        { url: 'b', title: 'b', children: [
-          { url: 'c', title: 'c' },
-          { url: 'd', title: 'd' }
-        ] },
-        { url: 'e', title: 'e' }
-      ] },
-      { url: 'f', title: 'f' }
-    ]
-  };
-
-  navigationViews = new BehaviorSubject<NavigationViews>(this.navJson);
-  currentNode = new BehaviorSubject<CurrentNode>(undefined);
-}