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const articleNotifier = new Subject(); | |
@Injectable() | |
export class ArticleService { | |
constructor(private _http: HttpClient) {} | |
@Cacheable({ | |
cacheBusterObserver: articleNotifier | |
}) | |
getArticles() { | |
return this._http(); |
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beforeEach(() => { | |
jasmine.clock().install(); | |
}); | |
afterEach(() => { | |
jasmine.clock().uninstall(); | |
}); |
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it('should return correct data', () => { | |
const data = awaitStream(component.getData(), 500); | |
expect(data).toEqual([1,2,3,4]) | |
}) |
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function awaitStream(stream$: Observable<any>, skipTime?: number) { | |
let response = null; | |
stream$.subscribe(data => { | |
response = data; | |
}); | |
if (skipTime) { | |
/** | |
* use jasmine clock to artificially manipulate time-based web apis like setTimeout and setInterval | |
* we can easily refactor this and use async/await but that means that we will have to actually wait out the time needed for every delay/mock request | |
*/ |
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it('should return correct data', (done) => { | |
component.getData().subscribe(data=> | |
expect(data).toEqual([1,2,3,4]) | |
done(); | |
) | |
}) |
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it('should return correct data', () => { | |
component.getData().subscribe(data=> | |
expect(data).toEqual([1,2,3,4]) | |
) | |
}) |
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getData(){ | |
return of([1,2,3,4]).pipe(delay(500)); | |
} |
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@CacheBuster({ | |
cacheBusterNotifier: productNotifier | |
}) | |
saveProduct(id: string, name: string, review: string) { | |
return this.http.put(`${environment.api}/products`, { | |
id, | |
name, | |
review | |
}); |
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@Cacheable({ | |
cacheBusterObserver: productNotifier | |
}) | |
getProducts(take?: number, skip?: number) { | |
return this.http.get( | |
`${environment.api}/products/latest?take=${take}&skip=${skip}` | |
); | |
} |
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getProducts(take?: number, skip?: number) { | |
return this.http.get( | |
`${environment.api}/products/latest?take=${take}&skip=${skip}` | |
); | |
} |