Add project files.

MyOffice.SPA/src/app/app.component.spec.ts

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+import { TestBed } from '@angular/core/testing';
+import { RouterTestingModule } from '@angular/router/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent',
+	() => {
+		beforeEach(async () => {
+			await TestBed.configureTestingModule({
+				imports: [
+					RouterTestingModule
+				],
+				declarations: [
+					AppComponent
+				],
+			}).compileComponents();
+		});
+
+		it('should create the app',
+			() => {
+				const fixture = TestBed.createComponent(AppComponent);
+				const app = fixture.componentInstance;
+				expect(app).toBeTruthy();
+			});
+
+		it(`should have as title 'spire'`,
+			() => {
+				const fixture = TestBed.createComponent(AppComponent);
+				const app = fixture.componentInstance;
+				expect(app.title).toEqual('spire');
+			});
+
+		it('should render title',
+			() => {
+				const fixture = TestBed.createComponent(AppComponent);
+				fixture.detectChanges();
+				const compiled = fixture.nativeElement as HTMLElement;
+				expect(compiled.querySelector('.content span')?.textContent).toContain('spire app is running!');
+			});
+	});