javascript - 本身具有依赖关系的间谍服务(spy service which itself has dependencies)

Question

I can't seem to find an example for the following problem.(我似乎找不到以下问题的示例。)

I have a unit test for my NGXS state:(我对NGXS状态进行了单元测试：) describe('Project store', () => { let store: Store; let projectService: ProjectService; beforeEach(async(() => { TestBed.configureTestingModule({ imports: [NgxsModule.forRoot([ProjectState])] }).compileComponents(); projectService = new ProjectService(); // error: needs httpClient store = TestBed.get(Store); })); it('should load projects', () => { const EXPECTED_PROJECTS = [ { "id": "1", "description": "abc" }, { "id": "1", "description": "abc" } ] as Project[]; spyOn(projectService, 'loadProjects').and.returnValue(EXPECTED_PROJECTS); const expected: ProjectStateModel = { loadedProjects: EXPECTED_PROJECTS, createdProjects: [] }; store.dispatch(new LoadProjects()); const actual = store.selectSnapshot(ProjectState.getState); expect(actual).toEqual(expected); }); }); How do I spy on ProjectService when it itself needs the httpClient ?(当ProjectService本身需要httpClient时，如何对其进行httpClient ？) I have found examples on how do test a service which needs the httpClient , but now about how to mock a service that needs the client.(我找到了有关如何测试需要httpClient的服务的httpClient ，但现在找到了有关如何模拟需要客户端的服务的httpClient 。) Now I know I could just write a mock service myself, but I am trying to find out if this can be done using jasmine spies.(现在我知道自己可以自己编写一个模拟服务，但是我试图找出是否可以使用茉莉花间谍程序来完成。)   ask by user3629892 translate from so

Answer 1

You can use NO_ERRORS_SCHEMA inside TestBed.configureTestingModule({}), it will tell angular to ignore unknown elements(您可以在TestBed.configureTestingModule（{}）中使用NO_ERRORS_SCHEMA ，它将告诉angular忽略未知元素)

TestBed.configureTestingModule({ declarations: [], schemas: [ NO_ERRORS_SCHEMA ] })