Also note that the test cases work, when run separately by hitting the "TEST" button. When I define "alphabet = []" and hit the "ATTEMPT" button, the encript and chained fixed tests fail and the decript random tests also fail. In all cases however, your kata is reporting that the decript tests are successful.

Thanks - fixed. In the first version of the kata the size of the figure was 4xsize, but I changed it later to 5xsize. Forgot to update the figures.

Thank you. Fixed it.

Edited

Fixed as well, thanks!

Alright fixed, thanks!

Thanks. Fixed now, I think.

@Progolderner . just remove test.assert_equals(censor(None),'') and you are good.

Could you please elaborate on this please?

yes, Heron's formula

The kata got retired the moment I wanted to submit ;)

not even pep 8

Anyway, i added some examples, tell me if it improve clarity or not

What do you mean, what is not clear in spec ?
(You're surely right, but, if you can explain what you do not understand, i'll be able to try to clarify it)

I no longer understand anything about the spec