def test_validate_place_tile_unnecessary_loop() -> None:
rc = RuleChecker()
bs = BoardState()
bs = bs.with_live_players(
bs.live_players.set("red", (BoardPosition(2, 0), Port.RightBottom))
)
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 0))
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 1))
bs = bs.with_tile(index_to_tile(4), BoardPosition(3, 1))
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(4), "red"))
assert r.is_ok()
assert r.value()
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(5), "red"))
assert r.is_ok()
assert r.value()
r = rc.is_move_suicidal(bs, IntermediateMove(index_to_tile(5).rotate(), "red"))
assert r.is_ok()
assert not r.value()
r2 = rc.validate_move(
bs,
[index_to_tile(5), index_to_tile(4)],
IntermediateMove(index_to_tile(4), "red"),
)
assert r2.is_error()
assert (
r2.error()
== "player chose a loopy move when this does not create a loop: Tile(idx=5, edges=[(0, 7), (1, 5), (2, 6), (3, 4)])"
)
def test_validate_place_tile_loop_someone_else() -> None:
rc = RuleChecker()
bs = BoardState()
bs = bs.with_live_players(
bs.live_players.set("red", (BoardPosition(2, 0), Port.RightBottom))
)
bs = bs.with_live_players(
bs.live_players.set("white", (BoardPosition(4, 0), Port.LeftTop))
)
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 0))
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 1))
bs = bs.with_tile(index_to_tile(4), BoardPosition(3, 1))
bs = bs.with_tile(index_to_tile(2), BoardPosition(4, 0))
# The move is suicidal for red but not for white
r = rc.is_move_suicidal(bs, IntermediateMove(index_to_tile(13).rotate(), "white"))
assert r.is_ok()
assert not r.value()
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(13).rotate(), "red"))
assert r.is_ok()
assert r.value()
# But it does create a loop no matter who places it
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(13).rotate(), "white"))
assert r.is_ok()
assert r.value()
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(13).rotate(), "red"))
assert r.is_ok()
assert r.value()
# And thus it is illegal
r = rc.is_move_illegal(bs, IntermediateMove(index_to_tile(13).rotate(), "white"))
assert r.is_ok()
assert r.value()
r = rc.is_move_illegal(bs, IntermediateMove(index_to_tile(13).rotate(), "red"))
assert r.is_ok()
assert r.value()
# Red and white are both not allowed to place the move since it causes a loop
r2 = rc.validate_move(
bs,
[index_to_tile(13).rotate().rotate(), index_to_tile(6)],
IntermediateMove(index_to_tile(13).rotate(), "white"),
)
assert r2.is_error()
assert (
r2.error()
== "player chose a loopy move when this does not create a loop: Tile(idx=13, edges=[(0, 7), (1, 2), (3, 5), (4, 6)])"
)
r2 = rc.validate_move(
bs,
[index_to_tile(13).rotate().rotate(), index_to_tile(6)],
IntermediateMove(index_to_tile(13).rotate(), "red"),
)
assert r2.is_error()
assert (
r2.error()
== "player chose a loopy move when this does not create a loop: Tile(idx=13, edges=[(0, 7), (1, 2), (3, 5), (4, 6)])"
)
def test_is_move_suicidal_loop() -> None:
rc = RuleChecker()
bs = BoardState()
bs = bs.with_live_players(
bs.live_players.set("red", (BoardPosition(2, 0), Port.RightBottom))
)
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 0))
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 1))
bs = bs.with_tile(index_to_tile(4), BoardPosition(3, 1))
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(4), "red"))
assert r.is_ok()
assert r.value()
def test_validate_place_tile_forced_loop_or_suicide() -> None:
rc = RuleChecker()
bs = BoardState()
bs = bs.with_live_players(
bs.live_players.set("red", (BoardPosition(2, 0), Port.RightBottom))
)
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 0))
bs = bs.with_tile(index_to_tile(4), BoardPosition(2, 1))
bs = bs.with_tile(index_to_tile(4), BoardPosition(3, 1))
r = rc.move_creates_loop(bs, IntermediateMove(index_to_tile(4), "red"))
assert r.is_ok()
assert r.value()
r = rc.is_move_suicidal(bs, IntermediateMove(index_to_tile(7), "red"))
assert r.is_ok()
assert r.value()
r2 = rc.validate_move(
bs,
[index_to_tile(7), index_to_tile(4)],
IntermediateMove(index_to_tile(4), "red"),
)
assert r2.is_error()
assert (
r2.error()
== "player chose a loopy move when this does not create a loop: Tile(idx=7, edges=[(0, 3), (1, 6), (2, 5), (4, 7)])"
)
r3 = rc.validate_move(
bs,
[index_to_tile(7), index_to_tile(4)],
IntermediateMove(index_to_tile(7), "red"),
)
assert r3.is_error()
assert (
r3.error()
== "player chose a suicidal move when this does not cause a suicide: Tile(idx=4, edges=[(0, 7), (1, 2), (3, 4), (5, 6)])"
)
