use strict;
use warnings;
-use Test::More tests => 7;
+use Test::More tests => 10;
use Test::Exception;
BEGIN { use_ok('Digest::HighwayHash') };
is_deeply highway_hash128([1, 2, 3, 4], 'hello'), ['3048112761216189476', '13900443277579286659'], 'highway_hash128';
is_deeply highway_hash256([1, 2, 3, 4], 'hello'), ['8099666330974151427', '17027479935588128037', '4015249936799013189', '10027181291351549853'], 'highway_hash256';
+my $state64 = Digest::HighwayHash->new([1, 2, 3, 4]);
+my $state128 = Digest::HighwayHash->new([1, 2, 3, 4]);
+my $state256 = Digest::HighwayHash->new([1, 2, 3, 4]);
+
+$state64->append('hello');
+$state64->append('');
+$state128->append('h');
+$state128->append('ell');
+$state128->append('o');
+$state256->append('hell');
+$state256->append('o');
+
+is $state64->finish64, '11956820856122239241', 'finish64';
+is_deeply $state128->finish128, ['3048112761216189476', '13900443277579286659'], 'finish128';
+is_deeply $state256->finish256, ['8099666330974151427', '17027479935588128037', '4015249936799013189', '10027181291351549853'], 'finish256';
+
throws_ok { highway_hash64 1, 'hello' } qr/not an ARRAY reference/, 'bad key 1';
throws_ok { highway_hash128 [1, 2], 'hello' } qr/Key for highway_hash must be a 4-element array/, 'bad key 2';
throws_ok { highway_hash256 [1, 2, 3, 4, 5], 'hello' } qr/Key for highway_hash must be a 4-element array/, 'bad key 3';