jMock

When it comes to test-driven development of Java code with mock objects, JMock is a reliable and free Java library that gets the job done. With JMock, the interactions between the objects in your programs can be easily defined and tested. As a result, it reduces the brittleness of your tests and allows you to design software with confidence.

One of the key benefits of using the jMock library is how quickly and easily mock objects can be defined without disrupting the rhythm of programming. You'll find it simple to precisely specify the interactions between your objects, ensuring your program operates as intended.

If you're concerned about the compatibility of JMock with other development tools, there's no need to worry. This library works seamlessly with the autocompletion and refactoring features of your preferred IDE. Plus, JMock can be easily integrated with your favourite test framework, making it an excellent choice for any team's development toolkit.

Finally, JMock is designed to be flexible and easy to extend. This means you can tailor it to meet the specific needs of your project, making it an invaluable asset for any software development team. In conclusion, JMock is an essential tool that supports test-driven development in Java code with ease, simplifying software design and testing processes.