not ok 1 # expected length 2, got length 3 for 'banana'
# a: ana
# x: na
ok 2 # 'aa bcbc'
ok 3 # 'abc-abcd'
ok 4 # 'alphabet'
ok 5 # 't/SQL'
ok 6 # 'constitution'
ok 7 # 'electricity'
not ok 8 # function returned non-substring 'ana' for 'bananaannaaaba'
ok 9 # 't/longstring'
not ok 10 # expected length 1, got length 0 for 't/debruijn'
# a: 
# x: a
ok 11 # 'random'
ok 12 # 'foobfooroobf'
not ok 13 # expected length 2, got length 3 for 'aaaa'
# a: aaa
# x: aa
not ok 14 # expected length 2, got length 3 for 'ababa'
# a: aba
# x: ab
ok 15 # '11011011'
ok 16 # '64 As'
ok 17 # 'redinias'
ok 18 # '123123'
ok 19 # '16384 As'
## 14 (70.710569024086)
