How to ignore testcode for code coverage using cabal and hpc?

Question

When using cabal install --enable-tests --enable-library-coverage to generate code coverage reports it will also generate code coverage reports for the testcode. Is there an option for cabal to let hpc ignore testcode?

Answer 1

I'd be pleasantly surprised if cabal yet has an option for this. Getting HPC to ignore things is (or perhaps used to be) moderately complicated as this example shows: http://www.haskell.org/haskellwiki/Haskell_program_coverage#Example