did you find out?

@suic, Ruby

try this isolated test case(comment out the others)

Test.assert_equals(compare(nil, ""), true, "\'<null>\' vs \'\'")

use puts or p and `.inspect' to debug your code.
i think you're not handling nil inputs.

Hi, which language? Regards, suic

hey, passing all tests but getting the STDERR as below:
compare': undefined method []' for nil:NilClass (NoMethodError)
from block in ' from block in describe'
from measure' from describe'
from `
'
any idea what that might be?

I have exactly the same issue. Solved the problem, on my irb everything works perfectly fine, all the tests are passing, yet the Attempt to submit final fails.