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11fdf7f2 TL |
1 | import { HttpClientTestingModule, HttpTestingController } from '@angular/common/http/testing'; |
2 | import { discardPeriodicTasks, fakeAsync, TestBed, tick } from '@angular/core/testing'; | |
3 | ||
f67539c2 | 4 | import { configureTestBed } from '~/testing/unit-test-helper'; |
11fdf7f2 TL |
5 | import { FeatureTogglesService } from './feature-toggles.service'; |
6 | ||
7 | describe('FeatureTogglesService', () => { | |
8 | let httpTesting: HttpTestingController; | |
9 | let service: FeatureTogglesService; | |
10 | ||
11 | configureTestBed({ | |
12 | providers: [FeatureTogglesService], | |
13 | imports: [HttpClientTestingModule] | |
14 | }); | |
15 | ||
16 | beforeEach(() => { | |
f67539c2 TL |
17 | service = TestBed.inject(FeatureTogglesService); |
18 | httpTesting = TestBed.inject(HttpTestingController); | |
11fdf7f2 TL |
19 | }); |
20 | ||
21 | afterEach(() => { | |
22 | httpTesting.verify(); | |
23 | }); | |
24 | ||
25 | it('should be created', () => { | |
26 | expect(service).toBeTruthy(); | |
27 | }); | |
28 | ||
29 | it('should fetch HTTP endpoint once and only once', fakeAsync(() => { | |
30 | const mockFeatureTogglesMap = [ | |
31 | { | |
32 | rbd: true, | |
33 | mirroring: true, | |
34 | iscsi: true, | |
35 | cephfs: true, | |
36 | rgw: true | |
37 | } | |
38 | ]; | |
39 | ||
40 | service | |
41 | .get() | |
42 | .subscribe((featureTogglesMap) => expect(featureTogglesMap).toEqual(mockFeatureTogglesMap)); | |
43 | tick(); | |
44 | ||
45 | // Second subscription shouldn't trigger a new HTTP request | |
46 | service | |
47 | .get() | |
48 | .subscribe((featureTogglesMap) => expect(featureTogglesMap).toEqual(mockFeatureTogglesMap)); | |
49 | ||
50 | const req = httpTesting.expectOne(service.API_URL); | |
51 | req.flush(mockFeatureTogglesMap); | |
52 | discardPeriodicTasks(); | |
53 | })); | |
54 | }); |