def test_max_square_empty(self, i):
m = [[0] * i for _ in range(i)]
assert maxsq.max_square(m) == 0
def test_max_square_none(self):
m = [[0]]
assert maxsq.max_square(m) == 0
def test_max_square_partial(self):
m = [[0, 0, 0], [1, 1, 1], [1, 1, 1]]
assert maxsq.max_square(m) == 2
def test_max_square_one(self):
m = [[0, 0, 0], [0, 0, 0], [1, 1, 1]]
assert maxsq.max_square(m) == 1
def test_max_square_full(self, i):
m = [[1] * i for _ in range(i)]
assert maxsq.max_square(m) == i