JUnit

In an age of continuous delivery, Java developers have to be confident that their changes don't break existing code, hence automated testing. There's more than one valid approach to it, but how can you keep them straight?

Automated software tests are critically important to the long-term quality, maintainability, and extensibility of software projects, and for Java, JUnit is the path to automation. While most of this article will focus on writing robust unit tests and utilizing stubbing, mocking, and dependency injection, Toptal Software Engineer Josh Hayden will also discuss JUnit and integration tests.