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import {delay} from './delay'import {pipedAsync} from './pipedAsync'import {tapAsync} from './tapAsync'
test('happy', async () => {  const result = await tapAsync(delay, 1)  expect(result).toEqual(1)})
test('complex', async () => {  let marker = false  const fn = () => (marker = true)  const result = await pipedAsync(    1,    async x => {      await delay(100)
      return x + 1    },    tapAsync(fn),    x => x + 1  )  expect(marker).toBeTrue()  expect(result).toEqual(3)})