impurist

import * as E from 'fp-ts/lib/Either';
import * as O from 'fp-ts/lib/Option';
import { flow, pipe } from 'fp-ts/function';

describe('Either', () => {
  describe('.fromNullable', () => {
    const errorMessage = 'input was null or undefined';
    const toEither = E.fromNullable(errorMessage);

    it('should return right with string', async () => {