def test__check_horizontal():
b = Board()
player = 1
assert b._check_horizontal(player, 3, 5) is False
assert b.add_disc(player, 0)
assert b.add_disc(player, 1)
assert b._check_horizontal(player, 1, 5) is False
assert b.add_disc(player, 2)
assert b.add_disc(player, 3)
assert b._check_horizontal(player, 3, 5)
player = 2
assert b.add_disc(player, 0)
assert b.add_disc(player, 1)
assert b._check_horizontal(player, 1, 4) is False
assert b.add_disc(player, 2)
assert b.add_disc(player, 3)
assert b._check_horizontal(player, 3, 4)
b1 = Board()
assert b1._check_horizontal(player, 3, 5) is False
assert b1.add_disc(player, 6)
assert b1.add_disc(player, 5)
assert b1.add_disc(player, 4)
assert b1.add_disc(player, 3)
assert b1._check_horizontal(player, 3, 5)
