A problem with your code is not a kata issue. Read the error message:

' *\n' should equal '*\n'
 ^
#There is space there that's not in the expected answer 
' *\n   ***\n *\n' should equal ' *\n***\n *\n'
' *\n   ***\n     *****\n   ***\n *\n' should equal '  *\n ***\n*****\n ***\n  *\n'
#Spaces are also wrong in these other tests

1 rule says more or equal, so if use >= 1 of them goes away, stays only 3 should be 4

I have the exact same issue in ruby

Print the input: https://docs.codewars.com/training/troubleshooting#print-input