def test_capture_multiple_groups(self):
board = test_utils.load_board('''
.OX......
OXX......
XX.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('A9'))
self.assertEqual(len(lib_tracker.groups), 2)
self.assertEqual(captured, parse_kgs_coords_set('B9 A8'))
corner_stone = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'A9')]]
self.assertEqual(corner_stone.stones, parse_kgs_coords_set('A9'))
self.assertEqual(corner_stone.liberties, parse_kgs_coords_set('B9 A8'))
surrounding_stones = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'C9')]]
self.assertEqual(surrounding_stones.stones,
parse_kgs_coords_set('C9 B8 C8 A7 B7'))
self.assertEqual(surrounding_stones.liberties,
parse_kgs_coords_set('B9 D9 A8 D8 C7 A6 B6'))
liberty_cache = lib_tracker.liberty_cache
for stone in corner_stone.stones:
self.assertEqual(liberty_cache[stone], 2, str(stone))
for stone in surrounding_stones.stones:
self.assertEqual(liberty_cache[stone], 7, str(stone))
def test_move_with_capture(self):
start_board = test_utils.load_board(EMPTY_ROW * 5 + '''
XXXX.....
XOOX.....
O.OX.....
OOXX.....
''')
start_position = Position(
board=start_board,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board(EMPTY_ROW * 5 + '''
XXXX.....
X..X.....
.X.X.....
..XX.....
''')
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(7, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('B2')),),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('B2'))
self.assertEqualPositions(actual_position, expected_position)
def test_capture_multiple_groups(self):
board = test_utils.load_board('''
.OX......
OXX......
XX.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('A9'))
self.assertEqual(len(lib_tracker.groups), 2)
self.assertEqual(captured, parse_kgs_coords_set('B9 A8'))
corner_stone = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('A9')]]
self.assertEqual(corner_stone.stones, parse_kgs_coords_set('A9'))
self.assertEqual(corner_stone.liberties, parse_kgs_coords_set('B9 A8'))
surrounding_stones = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('C9')]]
self.assertEqual(surrounding_stones.stones,
parse_kgs_coords_set('C9 B8 C8 A7 B7'))
self.assertEqual(surrounding_stones.liberties,
parse_kgs_coords_set('B9 D9 A8 D8 C7 A6 B6'))
liberty_cache = lib_tracker.liberty_cache
for stone in corner_stone.stones:
self.assertEqual(liberty_cache[stone], 2, str(stone))
for stone in surrounding_stones.stones:
self.assertEqual(liberty_cache[stone], 7, str(stone))
def test_move_with_capture(self):
start_board = test_utils.load_board(EMPTY_ROW * 5 + '''
XXXX.....
XOOX.....
O.OX.....
OOXX.....
''')
start_position = Position(
board=start_board,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board(EMPTY_ROW * 5 + '''
XXXX.....
X..X.....
.X.X.....
..XX.....
''')
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(7, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('B2')), ),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('B2'))
self.assertEqualPositions(actual_position, expected_position)
def test_parsing_9x9(self):
self.assertEqual(coords.parse_sgf_coords('aa'), (0, 0))
self.assertEqual(coords.parse_sgf_coords('ac'), (2, 0))
self.assertEqual(coords.parse_sgf_coords('ca'), (0, 2))
self.assertEqual(coords.parse_sgf_coords(''), None)
self.assertEqual(coords.unparse_sgf_coords(None), '')
self.assertEqual(
'aa', coords.unparse_sgf_coords(coords.parse_sgf_coords('aa')))
self.assertEqual(
'sa', coords.unparse_sgf_coords(coords.parse_sgf_coords('sa')))
self.assertEqual(
(1, 17), coords.parse_sgf_coords(coords.unparse_sgf_coords(
(1, 17))))
self.assertEqual(coords.parse_kgs_coords('A1'), (8, 0))
self.assertEqual(coords.parse_kgs_coords('A9'), (0, 0))
self.assertEqual(coords.parse_kgs_coords('C2'), (7, 2))
self.assertEqual(coords.parse_kgs_coords('J2'), (7, 8))
self.assertEqual(coords.parse_pygtp_coords((1, 1)), (8, 0))
self.assertEqual(coords.parse_pygtp_coords((1, 9)), (0, 0))
self.assertEqual(coords.parse_pygtp_coords((3, 2)), (7, 2))
self.assertEqual(coords.unparse_pygtp_coords((8, 0)), (1, 1))
self.assertEqual(coords.unparse_pygtp_coords((0, 0)), (1, 9))
self.assertEqual(coords.unparse_pygtp_coords((7, 2)), (3, 2))
self.assertEqual(coords.to_human_coord((0, 8)), 'J9')
self.assertEqual(coords.to_human_coord((8, 0)), 'A1')
def test_neighbors(self):
corner = parse_kgs_coords('A1')
neighbors = [go.EMPTY_BOARD[c] for c in go.NEIGHBORS[corner]]
self.assertEqual(len(neighbors), 2)
side = parse_kgs_coords('A2')
side_neighbors = [go.EMPTY_BOARD[c] for c in go.NEIGHBORS[side]]
self.assertEqual(len(side_neighbors), 3)
def test_neighbors(self):
corner = parse_kgs_coords('A1')
neighbors = [go.EMPTY_BOARD[c] for c in go.NEIGHBORS[corner]]
self.assertEqual(len(neighbors), 2)
side = parse_kgs_coords('A2')
side_neighbors = [go.EMPTY_BOARD[c] for c in go.NEIGHBORS[side]]
self.assertEqual(len(side_neighbors), 3)
def test_capture_stone(self):
board = test_utils.load_board('''
.X.......
XO.......
.X.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('C8'))
self.assertEqual(len(lib_tracker.groups), 4)
self.assertEqual(lib_tracker.group_index[parse_kgs_coords('B8')],
go.MISSING_GROUP_ID)
self.assertEqual(captured, parse_kgs_coords_set('B8'))
def test_capture_stone(self):
board = test_utils.load_board('''
.X.......
XO.......
.X.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('C8'))
self.assertEqual(len(lib_tracker.groups), 4)
self.assertEqual(
lib_tracker.group_index[parse_kgs_coords('B8')], go.MISSING_GROUP_ID)
self.assertEqual(captured, parse_kgs_coords_set('B8'))
def test_lib_tracker_init(self):
board = test_utils.load_board('X........' + EMPTY_ROW * 8)
lib_tracker = LibertyTracker.from_board(board)
self.assertEqual(len(lib_tracker.groups), 1)
self.assertNotEqual(lib_tracker.group_index[parse_kgs_coords('A9')],
go.MISSING_GROUP_ID)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('A9')], 2)
sole_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('A9')]]
self.assertEqual(sole_group.stones, parse_kgs_coords_set('A9'))
self.assertEqual(sole_group.liberties, parse_kgs_coords_set('B9 A8'))
self.assertEqual(sole_group.color, BLACK)
def test_lib_tracker_init(self):
board = test_utils.load_board('X........' + EMPTY_ROW * 8)
lib_tracker = LibertyTracker.from_board(board)
self.assertEqual(len(lib_tracker.groups), 1)
self.assertNotEqual(
lib_tracker.group_index[parse_kgs_coords('A9')], go.MISSING_GROUP_ID)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('A9')], 2)
sole_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'A9')]]
self.assertEqual(sole_group.stones, parse_kgs_coords_set('A9'))
self.assertEqual(sole_group.liberties, parse_kgs_coords_set('B9 A8'))
self.assertEqual(sole_group.color, BLACK)
def test_chinese_handicap_handling(self):
intermediate_board = test_utils.load_board('''
.........
.........
......X..
.........
.........
.........
.........
.........
.........
''')
intermediate_position = go.Position(
intermediate_board,
n=1,
komi=5.5,
caps=(0, 0),
recent=(go.PlayerMove(go.BLACK, parse_kgs_coords('G7')), ),
to_play=go.BLACK,
)
final_board = test_utils.load_board('''
....OX...
.O.OOX...
O.O.X.X..
.OXXX....
OX...XX..
.X.XXO...
X.XOOXXX.
XXXO.OOX.
.XOOX.O..
''')
final_position = go.Position(final_board,
n=50,
komi=5.5,
caps=(7, 2),
ko=None,
recent=(
go.PlayerMove(go.WHITE,
parse_kgs_coords('E9')),
go.PlayerMove(go.BLACK,
parse_kgs_coords('F9')),
),
to_play=go.WHITE)
positions_w_context = list(replay_sgf(CHINESE_HANDICAP_SGF))
self.assertEqualPositions(intermediate_position,
positions_w_context[1].position)
self.assertEqual(positions_w_context[1].next_move,
parse_kgs_coords('C3'))
final_replayed_position = positions_w_context[-1].position.play_move(
positions_w_context[-1].next_move)
self.assertEqualPositions(final_position, final_replayed_position)
def test_chinese_handicap_handling(self):
intermediate_board = test_utils.load_board('''
.........
.........
......X..
.........
.........
.........
.........
.........
.........
''')
intermediate_position = go.Position(
intermediate_board,
n=1,
komi=5.5,
caps=(0, 0),
recent=(go.PlayerMove(go.BLACK, parse_kgs_coords('G7')),),
to_play=go.BLACK,
)
final_board = test_utils.load_board('''
....OX...
.O.OOX...
O.O.X.X..
.OXXX....
OX...XX..
.X.XXO...
X.XOOXXX.
XXXO.OOX.
.XOOX.O..
''')
final_position = go.Position(
final_board,
n=50,
komi=5.5,
caps=(7, 2),
ko=None,
recent=(go.PlayerMove(go.WHITE, parse_kgs_coords('E9')),
go.PlayerMove(go.BLACK, parse_kgs_coords('F9')),),
to_play=go.WHITE
)
positions_w_context = list(replay_sgf(CHINESE_HANDICAP_SGF))
self.assertEqualPositions(
intermediate_position, positions_w_context[1].position)
self.assertEqual(
positions_w_context[1].next_move, parse_kgs_coords('C3'))
final_replayed_position = positions_w_context[-1].position.play_move(
positions_w_context[-1].next_move)
self.assertEqualPositions(final_position, final_replayed_position)
def test_japanese_handicap_handling(self):
intermediate_board = test_utils.load_board('''
.........
.........
......X..
.........
....O....
.........
..X......
.........
.........
''')
intermediate_position = go.Position(
intermediate_board,
n=1,
komi=5.5,
caps=(0, 0),
recent=(go.PlayerMove(go.WHITE, coords.parse_kgs_coords('E5')), ),
to_play=go.BLACK,
)
final_board = test_utils.load_board('''
.........
.........
......X..
.........
....O....
.........
..XX.....
.........
.........
''')
final_position = go.Position(
final_board,
n=2,
komi=5.5,
caps=(0, 0),
recent=(
go.PlayerMove(go.WHITE, parse_kgs_coords('E5')),
go.PlayerMove(go.BLACK, parse_kgs_coords('D3')),
),
to_play=go.WHITE,
)
positions_w_context = list(replay_sgf(JAPANESE_HANDICAP_SGF))
self.assertEqualPositions(intermediate_position,
positions_w_context[1].position)
final_replayed_position = positions_w_context[-1].position.play_move(
positions_w_context[-1].next_move)
self.assertEqualPositions(final_position, final_replayed_position)
def test_same_friendly_group_neighboring_twice(self):
board = test_utils.load_board('''
XX.......
X........
''' + EMPTY_ROW * 7)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 1)
sole_group_id = lib_tracker.group_index[parse_kgs_coords('A9')]
sole_group = lib_tracker.groups[sole_group_id]
self.assertEqual(sole_group.stones,
parse_kgs_coords_set('A9 B9 A8 B8'))
self.assertEqual(sole_group.liberties,
parse_kgs_coords_set('C9 C8 A7 B7'))
self.assertEqual(captured, set())
def test_same_friendly_group_neighboring_twice(self):
board = test_utils.load_board('''
XX.......
X........
''' + EMPTY_ROW * 7)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 1)
sole_group_id = lib_tracker.group_index[parse_kgs_coords('A9')]
sole_group = lib_tracker.groups[sole_group_id]
self.assertEqual(sole_group.stones,
parse_kgs_coords_set('A9 B9 A8 B8'))
self.assertEqual(sole_group.liberties,
parse_kgs_coords_set('C9 C8 A7 B7'))
self.assertEqual(captured, set())
def test_japanese_handicap_handling(self):
intermediate_board = test_utils.load_board('''
.........
.........
......X..
.........
....O....
.........
..X......
.........
.........
''')
intermediate_position = go.Position(
intermediate_board,
n=1,
komi=5.5,
caps=(0, 0),
recent=(go.PlayerMove(go.WHITE, coords.parse_kgs_coords('E5')),),
to_play=go.BLACK,
)
final_board = test_utils.load_board('''
.........
.........
......X..
.........
....O....
.........
..XX.....
.........
.........
''')
final_position = go.Position(
final_board,
n=2,
komi=5.5,
caps=(0, 0),
recent=(go.PlayerMove(go.WHITE, parse_kgs_coords('E5')),
go.PlayerMove(go.BLACK, parse_kgs_coords('D3')),),
to_play=go.WHITE,
)
positions_w_context = list(replay_sgf(JAPANESE_HANDICAP_SGF))
self.assertEqualPositions(
intermediate_position, positions_w_context[1].position)
final_replayed_position = positions_w_context[-1].position.play_move(
positions_w_context[-1].next_move)
self.assertEqualPositions(final_position, final_replayed_position)
def test_upperleft(self):
self.assertEqual(coords.parse_sgf_coords('aa'), (0, 0))
self.assertEqual(coords.unflatten_coords(0), (0, 0))
self.assertEqual(coords.parse_kgs_coords('A9'), (0, 0))
self.assertEqual(coords.parse_pygtp_coords((1, 9)), (0, 0))
self.assertEqual(coords.unparse_sgf_coords((0, 0)), 'aa')
self.assertEqual(coords.flatten_coords((0, 0)), 0)
self.assertEqual(coords.to_human_coord((0, 0)), 'A9')
self.assertEqual(coords.unparse_pygtp_coords((0, 0)), (1, 9))
def test_pass(self):
self.assertEqual(coords.parse_sgf_coords(''), None)
self.assertEqual(coords.unflatten_coords(81), None)
self.assertEqual(coords.parse_kgs_coords('pass'), None)
self.assertEqual(coords.parse_pygtp_coords((0, 0)), None)
self.assertEqual(coords.unparse_sgf_coords(None), '')
self.assertEqual(coords.flatten_coords(None), 81)
self.assertEqual(coords.to_human_coord(None), 'pass')
self.assertEqual(coords.unparse_pygtp_coords(None), (0, 0))
def test_topleft(self):
self.assertEqual(coords.parse_sgf_coords('ia'), (0, 8))
self.assertEqual(coords.unflatten_coords(8), (0, 8))
self.assertEqual(coords.parse_kgs_coords('J9'), (0, 8))
self.assertEqual(coords.parse_pygtp_coords((9, 9)), (0, 8))
self.assertEqual(coords.unparse_sgf_coords((0, 8)), 'ia')
self.assertEqual(coords.flatten_coords((0, 8)), 8)
self.assertEqual(coords.to_human_coord((0, 8)), 'J9')
self.assertEqual(coords.unparse_pygtp_coords((0, 8)), (9, 9))
def test_move(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board('''
.XX....OO
X........
''' + EMPTY_ROW * 7)
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('C9')),),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('C9'))
self.assertEqualPositions(actual_position, expected_position)
expected_board2 = test_utils.load_board('''
.XX....OO
X.......O
''' + EMPTY_ROW * 7)
expected_position2 = Position(
board=expected_board2,
n=2,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('C9')),
PlayerMove(WHITE, parse_kgs_coords('J8'))),
to_play=BLACK,
)
actual_position2 = actual_position.play_move(parse_kgs_coords('J8'))
self.assertEqualPositions(actual_position2, expected_position2)
def test_move(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board('''
.XX....OO
X........
''' + EMPTY_ROW * 7)
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('C9')), ),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('C9'))
self.assertEqualPositions(actual_position, expected_position)
expected_board2 = test_utils.load_board('''
.XX....OO
X.......O
''' + EMPTY_ROW * 7)
expected_position2 = Position(
board=expected_board2,
n=2,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, parse_kgs_coords('C9')),
PlayerMove(WHITE, parse_kgs_coords('J8'))),
to_play=BLACK,
)
actual_position2 = actual_position.play_move(parse_kgs_coords('J8'))
self.assertEqualPositions(actual_position2, expected_position2)
def test_same_opponent_group_neighboring_twice(self):
board = test_utils.load_board('''
XX.......
X........
''' + EMPTY_ROW * 7)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(WHITE, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 2)
black_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('A9')]]
self.assertEqual(black_group.stones, parse_kgs_coords_set('A9 B9 A8'))
self.assertEqual(black_group.liberties, parse_kgs_coords_set('C9 A7'))
white_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('B8')]]
self.assertEqual(white_group.stones, parse_kgs_coords_set('B8'))
self.assertEqual(white_group.liberties, parse_kgs_coords_set('C8 B7'))
self.assertEqual(captured, set())
def test_same_opponent_group_neighboring_twice(self):
board = test_utils.load_board('''
XX.......
X........
''' + EMPTY_ROW * 7)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(WHITE, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 2)
black_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'A9')]]
self.assertEqual(black_group.stones, parse_kgs_coords_set('A9 B9 A8'))
self.assertEqual(black_group.liberties, parse_kgs_coords_set('C9 A7'))
white_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'B8')]]
self.assertEqual(white_group.stones, parse_kgs_coords_set('B8'))
self.assertEqual(white_group.liberties, parse_kgs_coords_set('C8 B7'))
self.assertEqual(captured, set())
def test_ko_move(self):
start_board = test_utils.load_board('''
.OX......
OX.......
''' + EMPTY_ROW * 7)
start_position = Position(
board=start_board,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board('''
X.X......
OX.......
''' + EMPTY_ROW * 7)
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(2, 2),
ko=parse_kgs_coords('B9'),
recent=(PlayerMove(BLACK, parse_kgs_coords('A9')),),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('A9'))
self.assertEqualPositions(actual_position, expected_position)
# Check that retaking ko is illegal until two intervening moves
with self.assertRaises(go.IllegalMove):
actual_position.play_move(parse_kgs_coords('B9'))
pass_twice = actual_position.pass_move().pass_move()
ko_delayed_retake = pass_twice.play_move(parse_kgs_coords('B9'))
expected_position = Position(
board=start_board,
n=4,
komi=6.5,
caps=(2, 3),
ko=parse_kgs_coords('A9'),
recent=(
PlayerMove(BLACK, parse_kgs_coords('A9')),
PlayerMove(WHITE, None),
PlayerMove(BLACK, None),
PlayerMove(WHITE, parse_kgs_coords('B9'))),
to_play=BLACK,
)
self.assertEqualPositions(ko_delayed_retake, expected_position)
def test_merge_multiple_groups(self):
board = test_utils.load_board('''
.X.......
X.X......
.X.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
lib_tracker.add_stone(BLACK, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 1)
self.assertNotEqual(
lib_tracker.group_index[parse_kgs_coords('B8')], go.MISSING_GROUP_ID)
sole_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'B8')]]
self.assertEqual(sole_group.stones,
parse_kgs_coords_set('B9 A8 B8 C8 B7'))
self.assertEqual(sole_group.liberties,
parse_kgs_coords_set('A9 C9 D8 A7 C7 B6'))
self.assertEqual(sole_group.color, BLACK)
liberty_cache = lib_tracker.liberty_cache
for stone in sole_group.stones:
self.assertEqual(liberty_cache[stone], 6, str(stone))
def test_merge_multiple_groups(self):
board = test_utils.load_board('''
.X.......
X.X......
.X.......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
lib_tracker.add_stone(BLACK, parse_kgs_coords('B8'))
self.assertEqual(len(lib_tracker.groups), 1)
self.assertNotEqual(lib_tracker.group_index[parse_kgs_coords('B8')],
go.MISSING_GROUP_ID)
sole_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('B8')]]
self.assertEqual(sole_group.stones,
parse_kgs_coords_set('B9 A8 B8 C8 B7'))
self.assertEqual(sole_group.liberties,
parse_kgs_coords_set('A9 C9 D8 A7 C7 B6'))
self.assertEqual(sole_group.color, BLACK)
liberty_cache = lib_tracker.liberty_cache
for stone in sole_group.stones:
self.assertEqual(liberty_cache[stone], 6, str(stone))
def test_ko_move(self):
start_board = test_utils.load_board('''
.OX......
OX.......
''' + EMPTY_ROW * 7)
start_position = Position(
board=start_board,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=BLACK,
)
expected_board = test_utils.load_board('''
X.X......
OX.......
''' + EMPTY_ROW * 7)
expected_position = Position(
board=expected_board,
n=1,
komi=6.5,
caps=(2, 2),
ko=parse_kgs_coords('B9'),
recent=(PlayerMove(BLACK, parse_kgs_coords('A9')), ),
to_play=WHITE,
)
actual_position = start_position.play_move(parse_kgs_coords('A9'))
self.assertEqualPositions(actual_position, expected_position)
# Check that retaking ko is illegal until two intervening moves
with self.assertRaises(go.IllegalMove):
actual_position.play_move(parse_kgs_coords('B9'))
pass_twice = actual_position.pass_move().pass_move()
ko_delayed_retake = pass_twice.play_move(parse_kgs_coords('B9'))
expected_position = Position(
board=start_board,
n=4,
komi=6.5,
caps=(2, 3),
ko=parse_kgs_coords('A9'),
recent=(PlayerMove(BLACK, parse_kgs_coords('A9')),
PlayerMove(WHITE, None), PlayerMove(BLACK, None),
PlayerMove(WHITE, parse_kgs_coords('B9'))),
to_play=BLACK,
)
self.assertEqualPositions(ko_delayed_retake, expected_position)
def test_capture_many(self):
board = test_utils.load_board('''
.XX......
XOO......
.XX......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('D8'))
self.assertEqual(len(lib_tracker.groups), 4)
self.assertEqual(lib_tracker.group_index[parse_kgs_coords('B8')],
go.MISSING_GROUP_ID)
self.assertEqual(captured, parse_kgs_coords_set('B8 C8'))
left_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('A8')]]
self.assertEqual(left_group.stones, parse_kgs_coords_set('A8'))
self.assertEqual(left_group.liberties,
parse_kgs_coords_set('A9 B8 A7'))
right_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('D8')]]
self.assertEqual(right_group.stones, parse_kgs_coords_set('D8'))
self.assertEqual(right_group.liberties,
parse_kgs_coords_set('D9 C8 E8 D7'))
top_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('B9')]]
self.assertEqual(top_group.stones, parse_kgs_coords_set('B9 C9'))
self.assertEqual(top_group.liberties,
parse_kgs_coords_set('A9 D9 B8 C8'))
bottom_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('B7')]]
self.assertEqual(bottom_group.stones, parse_kgs_coords_set('B7 C7'))
self.assertEqual(bottom_group.liberties,
parse_kgs_coords_set('B8 C8 A7 D7 B6 C6'))
liberty_cache = lib_tracker.liberty_cache
for stone in top_group.stones:
self.assertEqual(liberty_cache[stone], 4, str(stone))
for stone in left_group.stones:
self.assertEqual(liberty_cache[stone], 3, str(stone))
for stone in right_group.stones:
self.assertEqual(liberty_cache[stone], 4, str(stone))
for stone in bottom_group.stones:
self.assertEqual(liberty_cache[stone], 6, str(stone))
for stone in captured:
self.assertEqual(liberty_cache[stone], 0, str(stone))
def test_capture_many(self):
board = test_utils.load_board('''
.XX......
XOO......
.XX......
''' + EMPTY_ROW * 6)
lib_tracker = LibertyTracker.from_board(board)
captured = lib_tracker.add_stone(BLACK, parse_kgs_coords('D8'))
self.assertEqual(len(lib_tracker.groups), 4)
self.assertEqual(
lib_tracker.group_index[parse_kgs_coords('B8')], go.MISSING_GROUP_ID)
self.assertEqual(captured, parse_kgs_coords_set('B8 C8'))
left_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'A8')]]
self.assertEqual(left_group.stones, parse_kgs_coords_set('A8'))
self.assertEqual(left_group.liberties,
parse_kgs_coords_set('A9 B8 A7'))
right_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'D8')]]
self.assertEqual(right_group.stones, parse_kgs_coords_set('D8'))
self.assertEqual(right_group.liberties,
parse_kgs_coords_set('D9 C8 E8 D7'))
top_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'B9')]]
self.assertEqual(top_group.stones, parse_kgs_coords_set('B9 C9'))
self.assertEqual(top_group.liberties,
parse_kgs_coords_set('A9 D9 B8 C8'))
bottom_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'B7')]]
self.assertEqual(bottom_group.stones, parse_kgs_coords_set('B7 C7'))
self.assertEqual(bottom_group.liberties,
parse_kgs_coords_set('B8 C8 A7 D7 B6 C6'))
liberty_cache = lib_tracker.liberty_cache
for stone in top_group.stones:
self.assertEqual(liberty_cache[stone], 4, str(stone))
for stone in left_group.stones:
self.assertEqual(liberty_cache[stone], 3, str(stone))
for stone in right_group.stones:
self.assertEqual(liberty_cache[stone], 4, str(stone))
for stone in bottom_group.stones:
self.assertEqual(liberty_cache[stone], 6, str(stone))
for stone in captured:
self.assertEqual(liberty_cache[stone], 0, str(stone))
def test_flipturn(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=parse_kgs_coords('A1'),
recent=tuple(),
to_play=BLACK,
)
expected_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=WHITE,
)
flip_position = start_position.flip_playerturn()
self.assertEqualPositions(flip_position, expected_position)
def test_passing(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=parse_kgs_coords('A1'),
recent=tuple(),
to_play=BLACK,
)
expected_position = Position(
board=TEST_BOARD,
n=1,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, None), ),
to_play=WHITE,
)
pass_position = start_position.pass_move()
self.assertEqualPositions(pass_position, expected_position)
def test_flipturn(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=parse_kgs_coords('A1'),
recent=tuple(),
to_play=BLACK,
)
expected_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=None,
recent=tuple(),
to_play=WHITE,
)
flip_position = start_position.flip_playerturn()
self.assertEqualPositions(flip_position, expected_position)
def test_passing(self):
start_position = Position(
board=TEST_BOARD,
n=0,
komi=6.5,
caps=(1, 2),
ko=parse_kgs_coords('A1'),
recent=tuple(),
to_play=BLACK,
)
expected_position = Position(
board=TEST_BOARD,
n=1,
komi=6.5,
caps=(1, 2),
ko=None,
recent=(PlayerMove(BLACK, None),),
to_play=WHITE,
)
pass_position = start_position.pass_move()
self.assertEqualPositions(pass_position, expected_position)
def test_place_stone_opposite_color(self):
board = test_utils.load_board('X........' + EMPTY_ROW * 8)
lib_tracker = LibertyTracker.from_board(board)
lib_tracker.add_stone(WHITE, parse_kgs_coords('B9'))
self.assertEqual(len(lib_tracker.groups), 2)
self.assertNotEqual(lib_tracker.group_index[parse_kgs_coords('A9')],
go.MISSING_GROUP_ID)
self.assertNotEqual(lib_tracker.group_index[parse_kgs_coords('B9')],
go.MISSING_GROUP_ID)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('A9')], 1)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('B9')], 2)
black_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('A9')]]
white_group = lib_tracker.groups[lib_tracker.group_index[
parse_kgs_coords('B9')]]
self.assertEqual(black_group.stones, parse_kgs_coords_set('A9'))
self.assertEqual(black_group.liberties, parse_kgs_coords_set('A8'))
self.assertEqual(black_group.color, BLACK)
self.assertEqual(white_group.stones, parse_kgs_coords_set('B9'))
self.assertEqual(white_group.liberties, parse_kgs_coords_set('C9 B8'))
self.assertEqual(white_group.color, WHITE)
def test_place_stone_opposite_color(self):
board = test_utils.load_board('X........' + EMPTY_ROW * 8)
lib_tracker = LibertyTracker.from_board(board)
lib_tracker.add_stone(WHITE, parse_kgs_coords('B9'))
self.assertEqual(len(lib_tracker.groups), 2)
self.assertNotEqual(
lib_tracker.group_index[parse_kgs_coords('A9')], go.MISSING_GROUP_ID)
self.assertNotEqual(
lib_tracker.group_index[parse_kgs_coords('B9')], go.MISSING_GROUP_ID)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('A9')], 1)
self.assertEqual(lib_tracker.liberty_cache[parse_kgs_coords('B9')], 2)
black_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'A9')]]
white_group = lib_tracker.groups[lib_tracker.group_index[parse_kgs_coords(
'B9')]]
self.assertEqual(black_group.stones, parse_kgs_coords_set('A9'))
self.assertEqual(black_group.liberties, parse_kgs_coords_set('A8'))
self.assertEqual(black_group.color, BLACK)
self.assertEqual(white_group.stones, parse_kgs_coords_set('B9'))
self.assertEqual(white_group.liberties, parse_kgs_coords_set('C9 B8'))
self.assertEqual(white_group.color, WHITE)
def test_is_koish(self):
self.assertEqual(go.is_koish(
TEST_BOARD, parse_kgs_coords('A9')), BLACK)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('B8')), None)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('B9')), None)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('E5')), None)
def test_is_koish(self):
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('A9')),
BLACK)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('B8')), None)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('B9')), None)
self.assertEqual(go.is_koish(TEST_BOARD, parse_kgs_coords('E5')), None)
