UnitTest and spring-mock or spring-test

I have just installed spring 2.5.1

I wanted to create some unit tests and all the sites I found referred to spring-mock.jar.

It is now spring-test.jar.

You will find it in the directory spring-framework-2.5.1/dist/modules after you have extracted the zip. I downloaded spring-framework-2.5.1-with-dependencies.zip although I see they have gone to 2.5.2 already.