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#!perl -T
use strict;
use warnings;
use Test::More;
use List::Util 'sum';
use Games::Word qw/random_permutation/;
my %blah_permutations = (
0 => "blah", 1 => "blha", 2 => "balh", 3 => "bahl",
4 => "bhla", 5 => "bhal", 6 => "lbah", 7 => "lbha",
8 => "labh", 9 => "lahb", 10 => "lhba", 11 => "lhab",
12 => "ablh", 13 => "abhl", 14 => "albh", 15 => "alhb",
16 => "ahbl", 17 => "ahlb", 18 => "hbla", 19 => "hbal",
20 => "hlba", 21 => "hlab", 22 => "habl", 23 => "halb",
);
plan tests => 1 + (scalar keys %blah_permutations) + 2;
is(random_permutation(""), "", "testing permutation of empty string");
while (my ($k, $v) = each %blah_permutations) {
is(random_permutation("blah", $k), $v, "testing random_permutation of 'blah'");
}
eval { random_permutation("blah", 24) };
like($@, qr/^invalid permutation index/, "testing permutation index bounds");
eval { random_permutation("blah", -1) };
like($@, qr/^invalid permutation index/, "testing permutation index bounds");
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