Learn the principles and best practices for writing maintainable test applications to catch errors before your product reaches the end user! Follow along with Kent C. Dodds and learn the fundamentals behind tests and testing frameworks, the distinctions of different forms of testing and when to use them appropriately to ensure your tests give you the confidence you need. You will also learn to write unit and integration tests with the popular Jest testing framework, mock dependencies, and use test-driven development to write new features and help find bugs!