Gluttonous : Tormenting Your Tests with Heckle

Gluttonous : Tormenting Your Tests with Heckle:

odysseus:~/code/heckle_demo kev$ heckle -v Greeter Loaded suite /usr/local/bin/heckle Started .. Finished in 0.000447 seconds. 2 tests, 2 assertions, 0 failures, 0 errors Initial tests pass. Let's rumble. ********************************************************************** *** Greeter#greet loaded with 3 possible mutations ********************************************************************** 3 mutations remaining... Replacing Greeter#greet with: def greet if @person.nil? then "uO i\032X#mcV" else "Hi #{@person}!" end end Loaded suite /usr/local/bin/heckle Started .F Finished in 0.00812000000000002 seconds. 1) Failure: test_greet_nobody(TestGreeter) [./test/test_greeter.rb:13]: <"Hi there!"> expected but was <"uO i\032X#mcV">. 2 tests, 2 assertions, 1 failures, 0 errors Tests failed -- this is good 2 mutations remaining... Replacing Greeter#greet with: def greet if @pers...

Full article: http://glu.ttono.us/articles/2006/12/19/tormenting-your-t...