This course explores DevOps, the practice of operations and development used by engineers participating together in the entire service lifecycle. Learners will examine the Agile environment, where development takes an incremental approach to design and testing. You will explore differences between continuous testing and automation testing, the disadvantages of late testing, and common causes of technical debt. This course will examine tools used in continuous testing, including Katalon Studio, Selenium, Appium, Eggplant, and Testsigma. You will work with BDD (Behavior Driven Development), a test-first Agile testing practice, and learn its benefits for programs and release management. Next, learn about unit testing, the tools to use, and how to implement it. You will examine technical debt, the debt owed to the code to become quality code, and its main causes. Then you will learn to test Web Services and the reason for integration testing. Finally, you will learn to implement unit testing on Java by using its JUnit framework, and how to test REST (representational state transfer) web services by using the SoapUI protocol.