How do you test Angular components?

Short answer: Use Angular’s TestBed to create a testing module that declares the component.

Explain a bit more

Instantiate the component and its template for testing. Test component logic, DOM rendering, event handling, and bindings. Use Angular testing utilities like fixture.detectChanges() to update the view. Basic example: beforeEach(async () => { await TestBed.configureTestingModule({ declarations: [MyComponent] }).compileComponents(); fixture = TestBed.createComponent(MyComponent);

Example code

component = fixture.componentInstance; fixture.detectChanges(); }); it('should create component', () => { expect(component).toBeTruthy(); });

Real-world example (ShopNest)

ShopNest’s ProductListComponent binds *ngFor to products and uses (click) to add to cart.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.