import { authenticating, authenticate, authError, logout } from '../../actions/auth';
import auth, { defaultState } from '../auth';

describe('auth', () => {
  it('should handle an empty state', () => {
    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
    // @ts-ignore auth reducer doesn't accept empty action
    expect(auth(undefined, {})).toEqual(defaultState);
  });

  it('should handle an authentication request', () => {
    expect(auth(undefined, authenticating())).toEqual({
      ...defaultState,
      isFetching: true,
    });
  });

  it('should handle authentication', () => {
    const user = { name: 'joe', token: 'token' };
    expect(auth(undefined, authenticate(user))).toEqual({
      ...defaultState,
      user,
    });
  });

  it('should handle an authentication error', () => {
    expect(auth(undefined, authError(new Error('Bad credentials')))).toEqual({
      ...defaultState,
      error: 'Error: Bad credentials',
    });
  });

  it('should handle logout', () => {
    const user = { name: 'joe', token: 'token' };
    const newState = auth({ ...defaultState, user }, logout());
    expect(newState.user).toBeUndefined();
  });
});