# Introduction In this lab, we will learn how to write unit tests for a Flask application. We will use `pytest` and `coverage` to test and measure our code. By the end of this lab, you will understand how to ensure your application works as expected and identify areas that need improvement. > Note: You need to create the code file yourself and run it in the environment. You can preview the Flask service status on Web 5000.
Click the virtual machine below to start practicing