I fixed

Small issue: The "3" in the title is irrelevant and should be removed.

thanks for feedback, i fixed

Issues:

• Random tests present inputs, but fixed tests do not.
• Missing import for solution in example tests and in submission tests.

Borderline issues:

• You really, really should get a language review and reword some sentences. Parts of the description can be quite difficult to understand, and has some mistakes which can really sting, like " string can only lowercase ones", or _"return minimum value between positions of two repeating characters in the string and that character itself".

Suggestions/improvements:

• Titles like Testing for: 0 (heiyqa) could be improved: the 0 is confusing (how is the 0 tested?), and the string should be quoted.
• random.choice called in a loop can be replaced with a single call to random.choices.

Hi, thanks, I fixed it

Why is the return value of empty input None and not (0, 0)? This does not make any sense: empty input is a valid input.

I fixed it

Your "notes" are "rules", and many of these are not enforced.

Hi again, thanks for the advice

Hi again,

If you're interested in authoring kata, you should read the docs about that first. So far, your kata are technically good, but you most likely won't get this kind of task approved: this is way too much classic and there are already loads of kata like this. See the idea section, for instance.

Cheers

Hi, thanks for the answer, I fixed it

Hi,

• the output as string doesn't make sense, it should be a tuple (question being, what to do about the default case? Could be: empty tuple, None or (-1,None), ...)
• the examples of the description are hidding half of the requirements => missing something like "abcded" -> 2, making clear that it's not the index of the second occurrence that is wanted (one might miss the info when jumping to the examples directly)
• this is too close to any classic "find the second occurrence" kind of problems to not be considered a duplicate, imo
• what about performances? Currently, O(N²) solutions are passing (see Fbasham's solution... Actually, yours is also O(N²)...). Note that if you want to add perf constraints, the description needs to provide informations about the tests (string lengths, number of tests) and the "performance" tag should be added.

Cheers

• description should be language-agnostic (No need to mention min_repeating_character_difference(text) in description)
• fixed tests to be included in full tests suite.

The "difference between the indices of these symbols" as applied to the input string "aa" is not 0, but 1. The index of the first "a" is 0, and the index of the second "a" is 1. The difference between 1 and 0 is 1, not 0.

hello again, random tests have been added