• new python test framework should be used
• sample test cases should have edge cases (involving leap years for example)

For me the kata looks very similar to old beta Will Nessie Emerge?

I'm afraid i should not be so lazy anymore. Thank you for your advice.

Now all the test cases will be after the introduction of the calendar. Thank you for your scrutiny.

The calendar in this kata is Gregorain Calendar.

In such case, it's not exactly clear how to handle dates prior to introduction of the calendar, like year 1345.

You need to add random tests.

https://www.codewars.com/kata/reviews/633ab1ad7f92f90001bd4e64/groups/633af3f9795f6900018c5756

Thank you for your advice. This is my first kata, still trying to get better.

Thank you for your advice. More test cases have been added.

You are right. I got the inspiration from tiktok and made it just for fun.

This just feels like a duplicate of some other date manipulation katas. I'm not sure if the story element is good enough to overcome this fact.

There is only 1 test in the final tests suite!

• @test.it blocks are obligatory and you need to use them. Assertions have to be inside of an it block.
• Handling dates, and calendars in general, is tricky. Description does not explain how to handle dates prior to introduction of Gregorain calendar, especially how to handle leap years.