Snippets
- Event:
let eventMock: jasmine.SpyObj<Event>
- Router:
let routerMock: jasmine.SpyObj<Router>
- FooService:
let fooServiceMock: jasmine.SpyObj<FooService>
- LoggerService:
let loggerServiceMock: jasmine.SpyObj<LoggerService>
- Obsevable:
foobarMock.corgeMethod.and.returnValue(of())
- Error:
foobarMock.corgeMethod.and.returnValue(throwError(() => error))
- Store:
let mockStore$: MockStore<PartialDeep<IAppState>>
- Store provide:
provideMockStore<PartialDeep<IAppState>>({ initialState: { ... } }),
- Store assignment:
mockStore$ = TestBed.inject(Store) as MockStore<PartialDeep<IAppState>>
- Refresh state:
mockStore$.refreshState()
- Override selector:
mockStore$.overrideSelector(selectFoobar, value)
- Spy on dispatch:
spyOn(mockStore$, 'dispatch') and then check with expect(mockStore$.dispatch).toHaveBeenCalledWith(dispatchedAction)
- Get child:
fixture.debugElement.query(By.directive(FoobarMockComponent)).componentInstance
- Get children:
fixture.debugElement.queryAll(By.directive(FoobarMockComponent)).map(debugEl => debugEl.componentInstance)
- Force detect changes:
fixture.detectChanges() (sometimes you may need to "wait" a bit: await fixture.whenStable())
- Initial component creation:
fixture = TestBed.createComponent(FoobarComponent) and then component = fixture.componentInstance
- Set input prop (standalone component):
fixture.componentRef.setInput('inputName', value)
- Create spy object:
jasmine.createSpyObj('fooService', ['method'])
- Router:
routerMock = jasmine.createSpyObj<Router>('Router', ['navigate'])
- Event:
eventMock = jasmine.createSpyObj<MouseEvent>('clickEvent', ['stopPropagation'])
- Logger:
loggerServiceMock = jasmine.createSpyObj<LoggerService>('LoggerService', ['warn', 'info'])
- Spy on an emit:
spyOn(component.fooEvent, 'emit')
- Use fake timer:
jest.useFakeTimers() and then .setSystemTime(new Date('2020-01-01'))
- Stop using fake timers:
jest.useRealTimers()
- Run all timers:
jest.runAllTimers()