In the Perl world Test::Tutorial is probably the closest to what you're looking for that I've come across.

For non-perl examples take a look at some of the articles on xprogramming.com - the Adventures in C# have some nice examples.

Other good places to look online are:

• http://www.testing.com/
• http://www.testingfaqs.org/
• http://www.testingeducation.org/

Book wise take a look at the TestingBooks on the perl-qa wiki. Especially Lessons Learned in Software Testing which is excellent.