#!/usr/bin/perl use Test::More qw( no_plan ); use_ok('CAD::Calc'); SKIP: { my $helper = 'Math::Geometry::Planar::Offset'; my $ok = eval("require $helper;"); $ok or skip("could not load $helper"); my @gons = CAD::Calc::offset([ [0,0], [1,0], [1,1], [0,1] ], 0.25); ok(@gons == 1); }