There are plenty of features in Test2::V0. To compare an array with an unordered list of its values, there are bags. You may do something like:

use Test2::V0;

my $have = [qw(c a b)];

is $have, bag {item $_ for qw(a b c); end}, 'matches';
isnt $have, bag {item $_ for qw(a a b c); end}, 'missing dup';
isnt $have, bag {item $_ for qw(a b); end}, 'one to much';
isnt $have, bag {item $_ for qw(a b c d); end}, 'one missing';
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