File: random_key.t

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liblist-objects-withutils-perl 2.028003-4
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use Test::More;
use strict; use warnings;

use Lowu 'hash';

my $hs = hash(a => 1, b => 2, c => 3, d => 4);
my $key = $hs->random_key;
ok $hs->exists($key), 'random_key returned key from hash';

my @r = hash->random_key;
ok @r == 1 && !defined $r[0], 'empty hash returns undef random_key';

done_testing