Read the guide. It contains a section about random tests and examples of random tests.

Here is a link to the portion in the Documentation about writing Random Tests.

how i make random tests?

I unpublished this kata because it lacks random tests and the JavaScript version is for a different task.

Please read the following guide for authoring kata in Python.

also how i add you into contribution

uploaded the code soon as possible

thank you for your code, helping and solution,
may i ask you how i make random test (if you know) i will be forever grateful for your action

there few problems:
1 lack of documentation
2 seems like there some errors on random testing
3 its not damn 7 kyu, is probally idk 3-5 kyu, thoguht might be skill issue