def test_eye_recursion(self):
# a checkerboard pattern of black is 'technically' all true eyes
# mutually supporting each other
gs = GameState(7)
for x in range(gs.size):
for y in range(gs.size):
if (x + y) % 2 == 1:
gs.do_move((x, y), go.BLACK)
self.assertTrue(gs.is_eye((0, 0), go.BLACK))
def test_true_eye(self):
gs = GameState(size=7)
gs.do_move((1, 0), go.BLACK)
gs.do_move((0, 1), go.BLACK)
# false eye at 0, 0
self.assertTrue(gs.is_eyeish((0, 0), go.BLACK))
self.assertFalse(gs.is_eye((0, 0), go.BLACK))
# make it a true eye by turning the corner (1, 1) into an eye itself
gs.do_move((1, 2), go.BLACK)
gs.do_move((2, 1), go.BLACK)
gs.do_move((2, 2), go.BLACK)
gs.do_move((0, 2), go.BLACK)
self.assertTrue(gs.is_eyeish((0, 0), go.BLACK))
self.assertTrue(gs.is_eye((0, 0), go.BLACK))
self.assertTrue(gs.is_eye((1, 1), go.BLACK))
