I will write a ui test for this scenario for all horizontal scenarios of x win case and then check other scenarios of horizontal X win in unit tests.
X - X - X
D - D - D
D - D - D
Also write unit test for all possible scenario of our vertical case of x.
X - X - X
D - D - D
D - D - D
I will write a ui test for this scenario for all horizontal scenarios of x win case and then check other scenarios of horizontal X win in unit tests. X - X - X D - D - D D - D - D
Also write unit test for all possible scenario of our vertical case of x. X - X - X D - D - D D - D - D
D - D - D X - X - X D - D - D
D - D - D D - D - D X - X - X