Yes, I see( It is a duplicate kata...

Thank you, I just corrected the tests.

I could't find any similar kata, the only one called 'Are the brackets balanced?'.

Here is it's description:

Given a string which may include opening or closing round brackets, can you tell whether the string contains a balanced pair(s) of round brackets, that is there are no brackets which are either opened & not closed, or vice versa. Opening round brackets always have to come before closing bracket. An empty string is balanced.

I think it differs enought.