[logback-user] Logging and test coverage

Joern Huxhorn jhuxhorn at googlemail.com
Thu Feb 12 12:40:59 CET 2009

Hi everybody.

I was wondering if somebody has found a solution for the problem that
logging - in general, not just using Logback - lowers the coverage of
application code because code after


is either executed or not, but not both, by the tests.

It would be necessary to execute every test-method twice: once logging
ALL and once logging OFF.

Ignoring cases like that is not the solution because it can actually
happen that a bug is enclosed or caused by such an if scope.

It once happened that a variable was initialized inside of a larger
if(logger.isDebugEnabled()) by mistake.
This resulted in a behavior where everything worked until the logging
level of that class was raised from DEBUG to INFO - which was a little
bit nasty because everything would work again after lowering the level
to DEBUG to look what's wrong... :p

Does anyone have a good idea (or even a solution) how to tackle that

Regards, Joern.

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