There are already good introductory lessons for testing Python with Pytest. But there are important concepts for functional and integration testing that require detailed explanations. In this course, you'll have a better grasp on solving a complex test matrix with ease, including highly functional tests with databases, web services, and containers. We will go from basic test runs that although sufficient, aren't really helping us in the case of failure, all the way to adding advanced techniques expanding on the framework. All of these changes live, debugging as we make progress.