This is a summary of the provided text in one paragraph: To test an Interactive Voice Response (IVR) system with Python and pytest, you need to configure Pytest, install necessary packages, and write tests for the IVR views. You can use fixtures such as `db` and `client` to provide data to your tests, and mock external dependencies using `unittest.mock`. To test a Twilio IVR system, you need to create a `TwilioPhoneCall` class that simulates a call from Twilio and processes the response. The class should make requests to the IVR views and process the TwiML markup responses. You can then write tests for different scenarios, such as listing showtimes, repeating theater or movie selections, and handling invalid input. By following this tutorial, you can ensure that your IVR system is working correctly and provides a good user experience.