import { describe, it, expect } from 'vitest';
import { machineRemoteData } from './machine-remote-data';
import { loading, success } from '../testing/remote-data';

describe('machineRemoteData', () => {
  it('maps loading → Loading', () => {
    expect(machineRemoteData({ tag: 'loading' })).toEqual(loading());
  });

  it('maps failed → Failure carrying an Error with the reason', () => {
    const rd = machineRemoteData({ tag: 'failed', reason: 'boom' });
    expect(rd.tag).toBe('Failure');
    if (rd.tag === 'Failure') expect(rd.error.message).toBe('boom');
  });

  it('maps loaded → Success carrying the whole loaded state', () => {
    const loaded = { tag: 'loaded', foo: 42 } as const;
    expect(machineRemoteData(loaded)).toEqual(success(loaded));
  });
});