[Bioperl-l] Installing all modules required for testing

Nathan S. Haigh N.Haigh at sheffield.ac.uk
Thu Jul 5 11:04:30 EDT 2007

Quoting Chris Fields <cjfields at uiuc.edu>:

> On Jul 5, 2007, at 9:22 AM, Nathan S. Haigh wrote:
> > Sendu Bala wrote:
> >> ...
> >> Yes, add them as recommended (or perhaps 'build_requires') modules in
> >> Build.PL, then run Build.PL and install the modules when it asks you.
> >>
> >> Everything should be in Build.PL already. If I missed something,  
> >> please
> >> add it.
> >>
> >
> > OK, to clarify using the test file Sendu mentioned in a previous post:
> > t/SeqIO.t
> >
> > This test skips tests if Algorithm::Diff, IO::ScalarArray or  
> > IO::String
> > are not installed (the first two are not mentioned in Build.PL).
> > However, if there are a lot of such skips in the whole test suite then
> > there maybe few system with all these modules installed in order to
> > conduct a complete test. These are the modules I'm referring to.
> >
> > Nath
> If they are only necessary for tests, work for all OSs, and are pure  
> Perl they should be added to t/lib, like Test::More and the rest.  If  
> they only work for some OSs they could be added to t/lib and skip  
> based on OS, but they still must be pure Perl.  I would avoid  
> anything that requires any compiling for XS or Inline altogether (I  
> don't want to go down the nightmare road of OS-dependent compiler  
> issues for a few tests).

If this is the case, there surely is no need to skip the tests if they should be provided in the t/lib dir. Am I missing something!?

> Finally, if they are needed for core modules (not just tests) then  
> they should be added to the core prereqs in Build.
> chris

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