@equinor/fusion-observable/src/__tests__/operators.test.ts

WIP

import { from, of, tap } from 'rxjs';
import { filterAction, mapAction, switchMapAction } from '../operators';

describe('operators', () => {
  it('should filter actions', (complete) => {
    from([{ type: 'a' } as const, { type: 'b' } as const])
      .pipe(
        filterAction('b'),
        tap((action) => {
          expect(action.type).toBe('b');
        }),
      )
      .subscribe({ complete });
  });

  it('should map an action', (complete) => {
    const action = { type: 'map-action', payload: 'test-map-action' } as const;
    of(action)
      .pipe(mapAction('map-action', (action) => action.payload))
      .subscribe({
        next: (value) => {
          expect(value).toBe(action.payload);
        },
        complete,
      });
  });

  it('should async map an action', (complete) => {
    const action = { type: 'map-action', payload: 'test-map-action' } as const;
    of(action)
      .pipe(switchMapAction('map-action', async (action) => action.payload))
      .subscribe({
        next: (value) => {
          expect(value).toBe(action.payload);
        },
        complete,
      });
  });
});