old_contents: 'use strict'
  
  import chai from 'chai'
  import chaiAsPromised from 'chai-as-promised'
  import cep from '../../src/cep-promise.js'
  
  chai.use(chaiAsPromised)
  
  let expect = chai.expect
  
  describe('cep-promise (E2E)', () => {
    describe('when invoked with a valid "05010000" string', () => {
      it('should fulfill with correct address', () => {
        return expect(cep('05010000')).to.eventually.deep.equal({
          cep: '05010000',
          state: 'SP',
          city: 'São Paulo',
          neighborhood: 'Perdizes',
          street: 'Rua Caiubi'
        })
      })
    })
  
    describe('when invoked with a valid 5010000 number', () => {
      it('should fulfill with correct address', () => {
        return expect(cep(5010000)).to.eventually.deep.equal({
          cep: '05010000',
          state: 'SP',
          city: 'São Paulo',
          neighborhood: 'Perdizes',
          street: 'Rua Caiubi'
        })
      })
    })
  
    describe('when invoked with an inexistend "99999999" cep', () => {
      it('should reject with "range_error"', () => {
        return expect(cep('99999999')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'range_error',
          message: 'CEP não encontrado na base dos Correios'
        })
      })
    })
  
    describe('when invoked with an inexistend "1" cep', () => {
      it('should reject with "range_error"', () => {
        return expect(cep('1')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'range_error',
          message: 'CEP não encontrado na base dos Correios'
        })
      })
    })
  
    describe('when invoked with an invalid "123456789" cep', () => {
      it('should reject with "type_error"', () => {
        return expect(cep('123456789')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'type_error',
          message: 'CEP deve conter exatamente 8 caracteres'
        })
      })
    })
  })
  
new_contents: 'use strict'
  
  import chai from 'chai'
  import chaiAsPromised from 'chai-as-promised'
  import cep from '../../src/cep-promise.js'
  
  chai.use(chaiAsPromised)
  
  let expect = chai.expect
  
  describe('cep-promise (E2E)', () => {
    describe('when invoked with a valid "05010000" string', () => {
      it('should fulfill with correct address', () => {
        return expect(cep('05010000')).to.eventually.deep.equal({
          cep: '05010000',
          state: 'SP',
          city: 'São Paulo',
          neighborhood: 'Perdizes',
          street: 'Rua Caiubi'
        })
      })
    })
  
    describe('when invoked with a valid 5010000 number', () => {
      it('should fulfill with correct address', () => {
        return expect(cep(5010000)).to.eventually.deep.equal({
          cep: '05010000',
          state: 'SP',
          city: 'São Paulo',
          neighborhood: 'Perdizes',
          street: 'Rua Caiubi'
        })
      })
    })
  
    describe('when invoked with an inexistent "99999999" cep', () => {
      it('should reject with "range_error"', () => {
        return expect(cep('99999999')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'range_error',
          message: 'CEP não encontrado na base dos Correios'
        })
      })
    })
  
    describe('when invoked with an inexistend "1" cep', () => {
      it('should reject with "range_error"', () => {
        return expect(cep('1')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'range_error',
          message: 'CEP não encontrado na base dos Correios'
        })
      })
    })
  
    describe('when invoked with an invalid "123456789" cep', () => {
      it('should reject with "type_error"', () => {
        return expect(cep('123456789')).to.be.rejected.and.to.eventually.deep.equal({
          type: 'type_error',
          message: 'CEP deve conter exatamente 8 caracteres'
        })
      })
    })
  })
  
subject: fix typo