角度测试始终通过

Question

我有以下服务测试，无论我做出什么断言，该服务测试都会始终通过。谁能提供一些建议？

欢呼

KH

    describe('CourseDataService', () => {
    beforeEach(async(() => {
       TestBed.configureTestingModule({
            imports: [CommonModule, TableModule, RouterTestingModule, 
            WidgetModule, HttpClientTestingModule],
            providers: [CourseDataService, HttpClientWrapper]
        })
            .compileComponents();
    }));

 it('should inject', () => {
    console.log('before inject');
    inject([CourseDataService], (courseDataService) => {
        console.log('inside inject never called');
        expect(courseDataService).toBeTruthy();
        expect(courseDataService).toBeFalsy();
        expect(courseDataService).toBeNull();
        expect(true).toBeFalsy();
    });

    console.log('after inject');
});
});