Why this TLE

general
1 
testcases = int(input())
for _ in range(testcases):
    N,K = map(int,input().split())
    S = input()
    if S.find("*"*K)!=-1:
        print("Yes")
        
    else:
        print("No")
2

I tried your code in my IDE and your script seems to freeze.

I think instead of giving an output your program is expecting an input().The fix is probably indenting the code after the for loop(line 5-9)