test(aio): reimplemented all the commented-out unit tests

aio/src/app/app.component.spec.ts

@@ -1,6 +1,8 @@
-import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { async, inject, ComponentFixture, TestBed } from '@angular/core/testing';
+import { APP_BASE_HREF } from '@angular/common';
 import { AppComponent } from './app.component';
 import { AppModule } from './app.module';
+import { SearchService } from 'app/search/search.service';
 
 describe('AppComponent', () => {
   let component: AppComponent;
@@ -10,6 +12,7 @@ describe('AppComponent', () => {
     TestBed.configureTestingModule({
       imports: [ AppModule ],
       providers: [
+        { provide: APP_BASE_HREF, useValue: '/' }
       ]
     });
     TestBed.compileComponents();
@@ -23,4 +26,38 @@ describe('AppComponent', () => {
   it('should create', () => {
     expect(component).toBeDefined();
   });
+
+  describe('isHamburgerVisible', () => {
+  });
+
+  describe('onResize', () => {
+    it('should update `isSideBySide` accordingly', () => {
+      component.onResize(1000);
+      expect(component.isSideBySide).toBe(true);
+      component.onResize(500);
+      expect(component.isSideBySide).toBe(false);
+    });
+  });
+
+  describe('onSearch', () => {
+    it('should call the search service', inject([SearchService], (search: SearchService) => {
+      spyOn(search, 'search');
+      component.onSearch('some query');
+      expect(search.search).toHaveBeenCalledWith('some query');
+    }));
+  });
+
+  describe('currentDocument', () => {
+
+  });
+
+  describe('navigationViews', () => {
+
+  });
+
+  describe('searchResults', () => {
+
+  });
+
+
 });