@reactivex/rxjs/spec-dtslint/operators/bufferWhen-spec.ts

Reactive Extensions for modern JavaScript

import { of } from 'rxjs';
import { bufferWhen } from 'rxjs/operators';

it('should infer correctly', () => {
  const o = of(1, 2, 3).pipe(bufferWhen(() => of('a', 'b', 'c'))); // $ExpectType Observable<number[]>
});

it('should enforce types', () => {
  const o = of(1, 2, 3).pipe(bufferWhen()); // $ExpectError
});

it('should enforce type of closingSelector', () => {
  const o = of(1, 2, 3).pipe(bufferWhen(of('a', 'b', 'c'))); // $ExpectError
});