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

A functional programming library.

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

test('toString(not using __), boolean', () => {
  expect(
    toString(true)
  ).toBe('true')
})

test('toString(not using __), date', () => {
  expect(
    toString(new Date(1994, 11, 15))
  ).toBe('787420800000')
})

test('toString(not using __), Number(not NaN)', () => {
  expect(
    toString(12)
  ).toBe('12')
})

test('toString(not using __), Number(NaN)', () => {
  expect(
    toString(NaN)
  ).toBe('NaN')
})

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

test('toString(not using __), regexp', () => {
  expect(
    toString(/rfg(erg)$/gi)
  ).toBe('/rfg(erg)$/gi')
})

test('toString(not using __), null', () => {
  expect(
    toString(null)
  ).toBe('null')
})

test('toString(not using __), undefined', () => {
  expect(
    toString(undefined)
  ).toBe('undefined')
})

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

test('toString(not using __), object', () => {
  expect(
    toString({a: 1, b: 2, c: 3})
  ).toBe('{a: 1, b: 2, c: 3}')
})

test('toString(not using __), funciton(anonymous)', () => {
  expect(
    toString(x => x + 1)
  ).toBe('anonymous')
})

test('toString(not using __), funciton(named)', () => {
  expect(
    toString(function addOne(x){return x + 1})
  ).toBe('addOne')
})

test('toString(not using __), Map', () => {
  expect(
    toString(new Map())
  ).toBe('[object Map]')
})

test('toString(not using __), custom Map', () => {
  const customMap = new Map()
  customMap.toString = undefined
  expect(
    toString(customMap)
  ).toBe('unknownType')
})

test('toString(using __), boolean', () => {
  expect(
    toString(__)(true)
  ).toBe('true')
})