moy-fp/test/Logic/allPass.test.js

A functional programming library.

import __ from '../../src/Function/__'
/**
 * [(a, b, ... m) -> Boolean] -> ((a, b, ..., m) -> Boolean)
 */
import allPass from '../../src/Logic/allPass'

test('allPass(not using __), return true', () => {
  expect(
    allPass([
      a => a > 0,
      a => a < 3,
    ])(2)
  ).toBeTruthy()
})

test('allPass(not using __), return false', () => {
  expect(
    allPass([
      a => a > 0,
      a => a < 3,
    ])(4)
  ).toBeFalsy()
})

test('allPass(using __), return true', () => {
  expect(
    allPass(__)([
      a => a > 0,
      a => a < 3,
    ])(2)
  ).toBeTruthy()
})