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use strict;
use warnings;
use Test::More;
use List::UtilsBy::XS qw( uniq_by );
my $expected;
my @gots;
my @array;
is_deeply( [ uniq_by { } ], [], 'empty list' );
is_deeply( [ uniq_by { $_ } "a" ], [ "a" ], 'unit list' );
@gots = uniq_by { $_ } "a", "b";
is_deeply(\@gots, [ "a", "b" ],'identity function no-op');
@gots = uniq_by { $_ } "b", "a";
is_deeply(\@gots, [ "b", "a" ], 'identity function on $_' );
@gots = uniq_by { length $_ } "a", "b", "cc", "dd", "eee";
is_deeply(\@gots, [ "a", "cc", "eee" ], 'length function' );
done_testing;
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