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| 1 | +import { TestBed } from "@angular/core/testing"; |
| 2 | +import { provideMockActions } from "@ngrx/effects/testing"; |
| 3 | +import { Action } from "@ngrx/store"; |
| 4 | +import { Observable } from "rxjs"; |
| 5 | +import { hot, cold } from "jasmine-marbles"; |
| 6 | +import { BooksService } from "../shared/services/book.service"; |
| 7 | +import { Book } from "../shared/models/book.model"; |
| 8 | +import { BooksPageActions, BooksApiActions } from "./actions"; |
| 9 | +import { BooksEffects } from "./books.effects"; |
| 10 | + |
| 11 | +describe("Book API Effects", () => { |
| 12 | + let effects: BooksEffects; |
| 13 | + let actions$: Observable<Action>; |
| 14 | + let mockBookService: { |
| 15 | + create: jest.Mock; |
| 16 | + update: jest.Mock; |
| 17 | + delete: jest.Mock; |
| 18 | + }; |
| 19 | + |
| 20 | + const mockBook: Book = { |
| 21 | + id: "test", |
| 22 | + name: "Mock Book", |
| 23 | + earnings: 25, |
| 24 | + }; |
| 25 | + |
| 26 | + beforeEach(() => { |
| 27 | + TestBed.configureTestingModule({ |
| 28 | + providers: [ |
| 29 | + BooksEffects, |
| 30 | + provideMockActions(() => actions$), |
| 31 | + { |
| 32 | + provide: BooksService, |
| 33 | + useFactory() { |
| 34 | + mockBookService = { |
| 35 | + create: jest.fn(), |
| 36 | + update: jest.fn(), |
| 37 | + delete: jest.fn() |
| 38 | + }; |
| 39 | + |
| 40 | + return mockBookService; |
| 41 | + } |
| 42 | + } |
| 43 | + ] |
| 44 | + }); |
| 45 | + |
| 46 | + effects = TestBed.get(BooksEffects); |
| 47 | + }); |
| 48 | + |
| 49 | + it("should use the API to create a book", () => { |
| 50 | + const inputAction = BooksPageActions.createBook({ |
| 51 | + book: { |
| 52 | + name: mockBook.name, |
| 53 | + earnings: 25, |
| 54 | + } |
| 55 | + }); |
| 56 | + const outputAction = BooksApiActions.bookCreated({ |
| 57 | + book: mockBook |
| 58 | + }); |
| 59 | + |
| 60 | + actions$ = hot("--a---", { a: inputAction }); |
| 61 | + const response$ = cold("--b|", { b: mockBook }); |
| 62 | + const expected$ = cold("----c--", { c: outputAction }); |
| 63 | + mockBookService.create.mockReturnValue(response$); |
| 64 | + |
| 65 | + expect(effects.createBook$).toBeObservable(expected$); |
| 66 | + }); |
| 67 | +}); |
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