I'm trying to test a component that uses the translate pipe from ngx-translate and can't build the testing module. component.html <div class="container"> <div class="row"> <div class="col-12 my-4"> <h1> {{'private.title' | translate }} </h1> </div> </div> </div> component.ts .... constructor( public itemsService: ItemsService, private sortPipe: OrderByPropertyNamePipe, private cdr: ChangeDetectorRef, private modalService: ModalService ) { } .... So as you can see nothing regarding ngx-translate is being used other than the translate pipe in the HTML file. component.spec.ts file describe('Component', () => { describe('Default', () => { let component: Component; let fixture: ComponentFixture<Component>; let debugElement: DebugElement; beforeEach( waitForAsync(() => { TestBed.configureTestingModule({ imports: [ HttpClientTestingModule, TranslateModule.forRoot(), ], providers: [ ItemsService, OrderByPropertyNamePipe, ], }) .overrideComponent(Component, { set: { changeDetection: ChangeDetectionStrategy.Default } }) .compileComponents(); }), ); beforeEach(() => { fixture = TestBed.createComponent(Component); component = fixture.componentInstance; debugElement = fixture.debugElement; component.allItems = MOCK_ITEMS; fixture.detectChanges(); }); it('should create', () => { expect(component).toBeTruthy(); }); }); }); throws NG0302: The pipe 'translate' could not be found! I have tried creating mock pipe as https://stackoverflow.com/a/57604396/8889351 but doesn't work either anybody has a clue on how to build correctly testing module? thanks in advance Continue reading...