@sjsilva-libs/validation/src/libs/isCPF/index.test.ts

Validação de CNPJ e CPF

import { describe, it, expect } from 'vitest'
import { isCPF } from './index'

describe('isCPF', () => {
  const validStrCPF = '529.982.247-25' // Valid CPF
  const invalidStrCPF = '529.982.247-26' // Invalid CPF (wrong check digits)
  const bigStrCPF = '529.982.247-255' // CPF with more than 11 characters
  const smallStrCPF = '529.982.247' // CPF with fewer than 11 characters
  const cpfAllSameDigits = '111.111.111-11' // CPF with all digits the same
  const cpfWithNonNumericChars = '529.982.247-2a' // CPF with non-numeric characters
  const cpfSecondRest10 = '123.456.789-09' // CPF where the second rest is 10 or 11

  it('CPF must be valid', () => {
    expect(isCPF(validStrCPF)).toBe(true)
  })

  it('CPF must be invalid', () => {
    expect(isCPF(invalidStrCPF)).toBe(false)
  })

  it.each([null, undefined, '', ' '])("CPF must be informed: '%s'", (cpf) => {
    expect(isCPF(cpf)).toBe(false)
  })

  it.each([bigStrCPF, smallStrCPF])('CPF must have 11 chars: %s', (cpf) => {
    expect(isCPF(cpf)).toBe(false)
  })

  it('CPF with all digits the same must be invalid', () => {
    expect(isCPF(cpfAllSameDigits)).toBe(false)
  })

  it('CPF with non-numeric characters must be invalid', () => {
    expect(isCPF(cpfWithNonNumericChars)).toBe(false)
  })

  it('CPF with correct second check digit must be valid', () => {
    expect(isCPF(validStrCPF)).toBe(true)
  })

  it('CPF where the second rest is 10 or 11 must be valid', () => {
    expect(isCPF(cpfSecondRest10)).toBe(true)
  })
})