#!perl -T use strict; use warnings; use Test::More tests => 24; use Sub::Nary; *combine = *Sub::Nary::combine{CODE}; my $h12 = { 1 => 0.5, 2 => 0.5 }; my @tests = ( [ [ ], undef ], [ [ undef ], undef ], [ [ 0 ], 0 ], [ [ 1, undef ], 1 ], [ [ undef, 2 ], 2 ], [ [ 0, 1 ], 1 ], [ [ 1, 2 ], 3 ], [ [ 2, undef, 3 ], 5 ], [ [ 'list' ], 'list' ], [ [ 0, 'list' ], 'list' ], [ [ 1, 'list' ], 'list' ], [ [ 1, undef, 'list' ], 'list' ], [ [ 1, 'list', 2 ], 'list' ], [ [ $h12 ], $h12 ], [ [ 1, $h12 ], { 2 => 0.5, 3 => 0.5 } ], [ [ $h12, 2 ], { 3 => 0.5, 4 => 0.5 } ], [ [ $h12, undef, 3 ], { 4 => 0.5, 5 => 0.5 } ], [ [ $h12, 'list' ], 'list' ], [ [ $h12, 3, 'list' ], 'list' ], [ [ 1, 0, $h12, 2, 0 ], { 4 => 0.5, 5 => 0.5 } ], [ [ $h12, $h12 ], { 2 => 0.25, 3 => 0.5, 4 => 0.25 } ], [ [ 1, $h12, $h12 ], { 3 => 0.25, 4 => 0.5, 5 => 0.25 } ], [ [ $h12, 2, $h12 ], { 4 => 0.25, 5 => 0.5, 6 => 0.25 } ], [ [ $h12, $h12, 3 ], { 5 => 0.25, 6 => 0.5, 7 => 0.25 } ], ); my $i = 1; for (@tests) { my $r = combine(@{$_->[0]}); my $exp = (not defined $_->[1] or ref $_->[1]) ? $_->[1] : { $_->[1] => 1 }; is_deeply($r, $exp, 'combine test ' . $i); ++$i; }