1use Test::More; 2use strict; use warnings FATAL => 'all'; 3 4use List::Objects::WithUtils 'array'; 5 6my $sum = sub { $_[0] + $_[1] }; 7my $arr = array(1 .. 3); 8 9cmp_ok $arr->reduce($sum), '==', 6, 'reduce with positional args ok'; 10cmp_ok array(1)->reduce($sum), '==', 1, 'array with one element reduce ok'; 11ok !defined array->reduce($sum), 'empty array reduce ok'; 12 13cmp_ok array(6, 3, 2)->reduce(sub { $a / $b }), '==', 1, 14 'reduce folds left (with named args)'; 15 16cmp_ok array(6, 3, 2)->foldl(sub { $a / $b }), '==', 1, 17 'foldl folds left'; 18 19cmp_ok array(6, 3, 2)->fold_left(sub { $a / $b }), '==', 1, 20 'fold_left alias ok'; 21 22cmp_ok array(2, 3, 6)->foldr(sub { $b / $a }), '==', 1, 23 'foldr folds right'; 24 25cmp_ok array(2, 3, 6)->fold_right(sub { $b / $a }), '==', 1, 26 'fold_right alias ok'; 27 28ok !defined array->foldr($sum), 'empty array foldr ok'; 29 30done_testing; 31