Here's an interesting way of depicting the statements that are likely to have cause test failures:
http://www.cc.gatech.edu/aristotle/Tools/tarantula/
Tarantula displays each source code statement using color models
that reflect its relative success rate of its execution by the test
suite. Roughly, statements that are executed by a failed test case
become more red, and statements that are executed by a passed test
case become more green.
- Barrie
