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

A functional programming library.

import __ from '../../src/Function/__'
/**
 * [[k, v]] -> {k: v}
 */
import fromPairs from '../../src/List/fromPairs'

test('fromPairs(not using __)', () => {
  expect(
    fromPairs([['a', 1], ['b', 2], ['c', 3], ['d', 4]])
  ).toEqual({
    a: 1,
    b: 2,
    c: 3,
    d: 4,
  })
})

test('fromPairs(using __)', () => {
  expect(
    fromPairs(__)([['a', 1], ['b', 2], ['c', 3], ['d', 4]])
  ).toEqual({
    a: 1,
    b: 2,
    c: 3,
    d: 4,
  })
})