When test scripts are run from make test current directory is top directory of distribution. So it is actually possible to use relative paths:

use Test::More qw( no_plan );

use MyPackage;

# relative path
my $p1 = MyPackage->new( -config => 't/test.conf' );

# more portable variation
use File::Spec;
my $p1 = MyPackage->new( -config => File::Spec->catfile('t', 'test.con
+f') );
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--
Ilya Martynov (http://martynov.org/)