def test_inversions(self):
for s in symmetries.SYMMETRIES:
with self.subTest(symmetry=s):
self.assertEqualNPArray(self.feat,
apply_f(s, apply_f(symmetries.invert_symmetry(s), self.feat)))
self.assertEqualNPArray(self.feat,
apply_f(symmetries.invert_symmetry(s), apply_f(s, self.feat)))
self.assertEqualNPArray(self.pi,
apply_p(s, apply_p(symmetries.invert_symmetry(s), self.pi)))
self.assertEqualNPArray(self.pi,
apply_p(symmetries.invert_symmetry(s), apply_p(s, self.pi)))
def test_compositions(self):
test_cases = [
('rot90', 'rot90', 'rot180'),
('rot90', 'rot180', 'rot270'),
('identity', 'rot90', 'rot90'),
('fliprot90', 'rot90', 'fliprot180'),
('rot90', 'rot270', 'identity'),
]
for s1, s2, composed in test_cases:
with self.subTest(s1=s1, s2=s2, composed=composed):
self.assertEqualNPArray(apply_f(composed, self.feat),
apply_f(s2, apply_f(s1, self.feat)))
self.assertEqualNPArray(apply_p(composed, self.pi),
apply_p(s2, apply_p(s1, self.pi)))
def test_compositions(self):
test_cases = [
('rot90', 'rot90', 'rot180'),
('rot90', 'rot180', 'rot270'),
('identity', 'rot90', 'rot90'),
('fliprot90', 'rot90', 'fliprot180'),
('rot90', 'rot270', 'identity'),
]
for s1, s2, composed in test_cases:
with self.subTest(s1=s1, s2=s2, composed=composed):
self.assertEqualNPArray(apply_f(composed, self.feat),
apply_f(s2, apply_f(s1, self.feat)))
self.assertEqualNPArray(apply_p(composed, self.pi),
apply_p(s2, apply_p(s1, self.pi)))
def test_uniqueness(self):
all_symmetries_f = [
apply_f(s, self.feat) for s in symmetries.SYMMETRIES
]
all_symmetries_pi = [
apply_p(s, self.pi) for s in symmetries.SYMMETRIES
]
for f1, f2 in itertools.combinations(all_symmetries_f, 2):
self.assertNotEqualNPArray(f1, f2)
for pi1, pi2 in itertools.combinations(all_symmetries_pi, 2):
self.assertNotEqualNPArray(pi1, pi2)
def test_inversions(self):
for s in symmetries.SYMMETRIES:
with self.subTest(symmetry=s):
self.assertEqualNPArray(
self.feat,
apply_f(s, apply_f(symmetries.invert_symmetry(s),
self.feat)))
self.assertEqualNPArray(
self.feat,
apply_f(symmetries.invert_symmetry(s),
apply_f(s, self.feat)))
self.assertEqualNPArray(
self.pi,
apply_p(s, apply_p(symmetries.invert_symmetry(s),
self.pi)))
self.assertEqualNPArray(
self.pi,
apply_p(symmetries.invert_symmetry(s), apply_p(s,
self.pi)))
def test_uniqueness(self):
all_symmetries_f = [
apply_f(s, self.feat) for s in symmetries.SYMMETRIES
]
all_symmetries_pi = [
apply_p(s, self.pi) for s in symmetries.SYMMETRIES
]
for f1, f2 in itertools.combinations(all_symmetries_f, 2):
self.assertNotEqualNPArray(f1, f2)
for pi1, pi2 in itertools.combinations(all_symmetries_pi, 2):
self.assertNotEqualNPArray(pi1, pi2)
def test_proper_move_transform(self):
# Check that the reinterpretation of 362 = 19*19 + 1 during symmetry
# application is consistent with coords.unflatten_coords
move_array = np.arange(go.N**2 + 1)
coord_array = np.zeros([go.N, go.N])
for c in range(go.N**2):
coord_array[coords.unflatten_coords(c)] = c
for s in symmetries.SYMMETRIES:
with self.subTest(symmetry=s):
transformed_moves = apply_p(s, move_array)
transformed_board = apply_f(s, coord_array)
for new_coord, old_coord in enumerate(transformed_moves[:-1]):
self.assertEqual(
old_coord,
transformed_board[coords.unflatten_coords(new_coord)])
def test_proper_move_transform(self):
# Check that the reinterpretation of 362 = 19*19 + 1 during symmetry
# application is consistent with coords.from_flat
move_array = np.arange(go.N ** 2 + 1)
coord_array = np.zeros([go.N, go.N])
for c in range(go.N ** 2):
coord_array[coords.from_flat(c)] = c
for s in symmetries.SYMMETRIES:
with self.subTest(symmetry=s):
transformed_moves = apply_p(s, move_array)
transformed_board = apply_f(s, coord_array)
for new_coord, old_coord in enumerate(transformed_moves[:-1]):
self.assertEqual(
old_coord,
transformed_board[coords.from_flat(new_coord)])