我有以下调用 API 的服务：
export class MoviesService {
constructor(private httpClient: HttpClient) { }
// Return an obsevable with all the movies from the API
getAllMovies(): Observable<Movie[]> {
return this.httpClient.get<EmbeddedTitle>("http://localhost:8080/api/movies", { params: params })
.pipe(
map(response => {
return response;
}
));
}
这是注入该服务并调用getAllMovies方法的组件：
export class MoviesListingComponent implements OnInit {
public movies: Movie[];
constructor(private moviesService: MoviesService) { }
ngOnInit(): void {
this.getAllMovies();
}
// Subscribe to method service (getAllMovies) and assign the results to a class object (movies)
getAllMovies(): void {
this.moviesService.getAllMovies()
.subscribe(movies => {
this.movies = movies;
});
}
}
我想知道如何使用 Jasmine对组件的方法getAllMovies进行单元测试。