moy-fp/test/List/insertAll.test.js

A functional programming library.

import __ from '../../src/Function/__'
/**
 * Number -> [a] -> [a] -> [a]
 */
import insertAll from '../../src/List/insertAll'

test('insertAll(not using __)', () => {
  expect(
    insertAll(1)([2, 3])([1, 4])
  ).toEqual([1, 2, 3, 4])
})

test('insertAll(using __)', () => {
  expect(
    insertAll(1, __, [1, 4])([2, 3])
  ).toEqual([1, 2, 3, 4])
})