sub run-tests() {
use Test;
is sig-start('bvwbjplbgvbhsrlpgdmjqwftvncz', 4), 5, "'bvwbjplbgvbhsrlpgdmjqwftvncz', length 4, start at 5";
is sig-start('nppdvjthqldpwncqszvftbrmjlhg', 4), 6, "'nppdvjthqldpwncqszvftbrmjlhg', length 4, start at 6";
is sig-start('nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg', 4), 10, "'nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg', length 4, start at 10";
is sig-start('zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw', 4), 11, "'zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw', length 4, start at 11";
is sig-start('mjqjpqmgbljsphdztnvjfqwrcgsmlb', 14), 19, "'zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw', length 14, start at 19";
is sig-start('bvwbjplbgvbhsrlpgdmjqwftvncz', 14), 23, "'bvwbjplbgvbhsrlpgdmjqwftvncz', length 14, start at 23";
is sig-start('nppdvjthqldpwncqszvftbrmjlhg', 14), 23, "'nppdvjthqldpwncqszvftbrmjlhg', length 14, start at 23";