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import { composeAsync } from './composeAsync'import { delay } from './delay'import { map } from './map'import { mapAsync } from './mapAsync'
const rejectDelay = a =>  new Promise((_, reject) => {    setTimeout(() => {      reject(a + 20)    }, 100)  })
test('happy', async () => {  const fn = async (x, prop) => {    await delay(100)    expect(prop).toBeNumber()
    return x + 1  }  const result = await mapAsync(fn, [ 1, 2, 3 ])  expect(result).toEqual([ 2, 3, 4 ])})
test('with object', async () => {  const fn = async (x, prop) => {    expect(prop).toBeString()
    return x + 1  }  const result = await mapAsync(fn, {    a : 1,    b : 2,  })  expect(result).toEqual({    a : 2,    b : 3,  })})
test('with R.composeAsync', async () => {  const result = await composeAsync(    map(x => x + 1),    mapAsync(async x => {      delay(x)
      return x    }),    map(x => x * 10)  )([ 1, 2, 3 ])  expect(result).toEqual([ 11, 21, 31 ])})
test('error', async () => {  try {    await mapAsync(rejectDelay)([ 1, 2, 3 ])  } catch (err){    expect(err).toBe(21)  }})