moy-fp/test/String/toLower.test.js

A functional programming library.

import __ from '../../src/Function/__'
/**
 * String -> String
 */
import toLower from '../../src/String/toLower'

test('toLower(not using __)', () => {
  expect(
    toLower('MURAKAMI')
  ).toBe('murakami')
})

test('toLower(using __)', () => {
  expect(
    toLower(__)('MURAKAMI')
  ).toBe('murakami')
})