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use Test::More;
use strict; use warnings FATAL => 'all';
use List::Objects::WithUtils 'hash';
my $hr = hash(a => 1, b => 2, c => 3, d => 4);
my $slice = $hr->sliced('a', 'c', 'z');
ok $slice->keys->count == 2, 'sliced key count ok'
or diag explain $slice;
ok $slice->get('a') == 1, 'sliced get ok';
ok !$slice->exists('z'), 'nonexistant key ignored';
ok !$slice->get('b'), 'unspecified key ignored';
is_deeply
+{ $slice->export },
+{ $hr->slice(qw/a c z/)->export },
'slice alias ok';
done_testing;
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