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import * as R from 'ramda'
import { addIndex } from './addIndex.js'import { map } from './map.js'
test('with R.pipe', () => {  const result = R.pipe(R.addIndex(R.map)((x, i) => x + i))([ 1, 2, 3 ])  expect(result).toEqual([ 1, 3, 5 ])})
test('happy', () => {  function mapFn(fn, list){    const willReturn = []    list.forEach(item => {      willReturn.push(fn(item))    })
    return willReturn  }  const mapIndexed = addIndex(mapFn)  const fn2 = (val, idx) => val + idx + 5  const result = mapIndexed(fn2, [ 1, 2, 3 ])  expect(result).toEqual([ 6, 8, 10 ])})
describe('unary functions like `map`', () => {  const times2 = function (x){    return x * 2  }  const addIndexParam = function (x, idx){    return x + idx  }  const squareEnds = function (    x, idx, list  ){    return idx === 0 || idx === list.length - 1 ? x * x : x  }  const mapIndexed = addIndex(map)
  it('works just like a normal map', () => {    expect(mapIndexed(times2, [ 1, 2, 3, 4 ])).toEqual([ 2, 4, 6, 8 ])  })
  it('passes the index as a second parameter to the callback', () => {    expect(mapIndexed(addIndexParam, [ 8, 6, 7, 5, 3, 0, 9 ])).toEqual([      8, 7, 9, 8, 7, 5, 15,    ])  })
  it('passes the entire list as a third parameter to the callback', () => {    expect(mapIndexed(squareEnds, [ 8, 6, 7, 5, 3, 0, 9 ])).toEqual([      64, 6, 7, 5, 3, 0, 81,    ])  })
  it('acts as a curried function', () => {    const makeSquareEnds = mapIndexed(squareEnds)    expect(makeSquareEnds([ 8, 6, 7, 5, 3, 0, 9 ])).toEqual([      64, 6, 7, 5, 3, 0, 81,    ])  })})