Good to start, provides hands-on experience,
This review is from: Test Driven: TDD and Acceptance TDD for Java Developers (Paperback)
Still not finished reading but promising. Good book for real developers. Provides interesting points on several topics. Next, it is up to you to further investigate, but you are headed in the appropiate direction.
On the other hand, I miss a chapter for testing generic JPA, instead of Hibernate.
Recommended if Java is used in most of your development.