def test_calls_remote_service do
  remote_services = Minitest::Mock.new
  voice_service = VoiceService.new(remote_services)
  remote_services.expect :request_recognize, {result: ‘ochenta y ocho’}.to_json, [‘88’]

  result = voice_service.recognize(‘88’)

  assert_equal result, ‘ochenta y ocho’
  remote_services.verify
end