Following 
http://lists.squeakfoundation.org/pipermail/squeak-dev/2007-November/122283.html

Just a warning at those using patches from
- http://bugs.squeak.org/view.php?id=3574 (WideCharacterSet)
- http://bugs.squeak.org/view.php?id=3574 (CharacterSetComplements)

These patches solved some bug but introduced new ones:
- incorrect #remove: (a period lacking end of sentence)
- incorrect #hash (bitXOr: with capital o)
- incorrect #hash again (self map unimplemented)

So please find corresponding patches recently uploaded on Mantis.

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Patches going into production images should:
- be reviewed (these were, but bugs were not obvious)
- be tested in ad-hoc images (these were but only for bugs they solved)
- be fully covered by tests

Obviously, third item is not met!
Not enough tests written!

Anyone has a TestCoverage tool usable (production-ready) in Squeak?

Nicolas