What happened to chapter 4? We've moved some chapters around after reading people's comments in the discussion group and will publish chapter 4 as soon as we've finished it and polished it up. We'll put the new table of contents up ASAP.
You can give comments and feedback via the discussion group or as blog comments.
Update: explained why we are only giving a cursory introduction to the tools. Improve explanation of why we chose JUnit and include where you can download it from.