From Spock documentation:
Spock is a testing and specification framework for Java and Groovy applications. What makes it stand out from the crowd is its beautiful and highly expressive specification language.
Spock in an amazing testing framework, which I believe is a better replacement for JUnit library. Using Spock will make your tests not only easier to write, but what is more important, it will make them easier to read and understand their results.
What could be the biggest challenges to switch from JUnit to Spock:
- Spock is using Groovy (not Java) so you need to learn new language.
- Spock is not JUnit so it is not compatible with other software (i.e. IDE, build tools, continuous integration tools).
Fortunatelly, the above statements are false!