def test_invalid_inputs(self):
""" There are several errors that should be thrown from the master Maze class,
if the inputs given are invalid. Let's just verify some of those.
"""
m = Maze()
# should not be able to generate or solve if neither algorithm was set
self.assertRaises(AssertionError, m.generate)
self.assertRaises(AssertionError, m.solve)
# even if the generator algorithm is set, you have to run it
m.generator = Prims(3, 3)
self.assertRaises(AssertionError, m.solve)
# the pretty-print, sring formats should fail gracefully
m.start = (1, 1)
m.end = (3, 3)
self.assertEqual(str(m), '')
self.assertEqual(repr(m), '')
# the Monte Carlo method has a special zero-to-one input scalar
self.assertRaises(AssertionError, m.generate_monte_carlo, True, 3,
-1.0)
self.assertRaises(AssertionError, m.generate_monte_carlo, True, 3,
10.0)
def testDungeonRoomsRooms(self):
m = Maze()
m.generator = DungeonRooms(4, 4, rooms=[[(1, 1), (3, 3)]])
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
def testDungeonRoomsRooms(self):
m = Maze()
m.generator = DungeonRooms(4, 4, rooms=[[(1,1), (3,3)]])
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
def test_cellular_automaton(self):
m = Maze()
m.generator = CellularAutomaton(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
def testCellularAutomaton(self):
m = Maze()
m.generator = CellularAutomaton(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
def testHuntAndKill(self):
m = Maze()
m.generator = HuntAndKill(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testWilsons(self):
m = Maze()
m.generator = Wilsons(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def test_hunt_and_kill_serpentine_order(self):
m = Maze()
m.generator = HuntAndKill(4, 5, 'serpentine')
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_division(self):
m = Maze()
m.generator = Division(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def testHuntAndKill(self):
m = Maze()
m.generator = HuntAndKill(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testCellularAutomaton(self):
m = Maze()
m.generator = CellularAutomaton(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testAldousBroder(self):
m = Maze()
m.generator = AldousBroder(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def test_aldous_broder(self):
m = Maze()
m.generator = AldousBroder(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_binary_tree(self):
m = Maze()
m.generator = BinaryTree(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_backtracking_generator(self):
m = Maze()
m.generator = BacktrackingGenerator(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_sidewinder(self):
m = Maze()
m.generator = Sidewinder(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def testBacktrackingGenerator(self):
m = Maze()
m.generator = BacktrackingGenerator(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testGrowingTree(self):
m = Maze()
m.generator = GrowingTree(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testDivision(self):
m = Maze()
m.generator = Division(4, 5)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def test_wilsons_serpentine_order(self):
m = Maze()
m.generator = Wilsons(4, 5, hunt_order='serpentine')
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_cellular_automaton(self):
""" test the Cellulator Automaton method generates a reasonably sane maze """
m = Maze()
m.generator = CellularAutomaton(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
def test_kruskal(self):
""" test the Kruskal method generates a reasonably sane maze """
m = Maze()
m.generator = Kruskal(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_backtracking_generator(self):
""" test the Backtracking method generates a reasonably sane maze """
m = Maze()
m.generator = BacktrackingGenerator(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_aldous_broder(self):
""" test the AlgousBroder method generates a reasonably sane maze """
m = Maze()
m.generator = AldousBroder(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_wilsons_serpentine_order(self):
""" test the Wilson method generates a reasonably sane maze, using the serpentine pathway """
m = Maze()
m.generator = Wilsons(4, 5, hunt_order='serpentine')
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_sidewinder(self):
""" test the Sidewinder method generates a reasonably sane maze """
m = Maze()
m.generator = Sidewinder(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_binary_tree(self):
""" test the Binary Tree method generates a reasonably sane maze """
m = Maze()
m.generator = BinaryTree(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_hunt_and_kill_serpentine_order(self):
""" test the Hunt and Kill method generates a reasonably sane maze, using the serpentine pathway """
m = Maze()
m.generator = HuntAndKill(4, 5, 'serpentine')
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_division(self):
""" test the Division method generates a reasonably sane maze """
m = Maze()
m.generator = Division(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
def test_trivial_maze_spiral(self):
m = Maze()
m.generator = TrivialMaze(4, 5)
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_dungeon_rooms_serpentine_rooms(self):
m = Maze()
m.generator = DungeonRooms(4,
4,
rooms=[[(1, 1), (3, 3)]],
hunt_order='serpentine')
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
def test_trivial_maze_spiral(self):
""" test that the trivial/spiral maze is reasonably sane """
m = Maze()
m.generator = TrivialMaze(4, 5)
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
assert all_corners_complete(m.grid)
assert all_corners_complete(m.grid)
def test_trivial_maze_serpentine(self):
# run this test enough times to trip the different skewness parameters
for _ in range(10):
m = Maze()
m.generator = TrivialMaze(4, 5, 'serpentine')
m.generate()
self.assertTrue(boundary_is_solid(m.grid))
self.assertTrue(all_passages_open(m.grid))
self.assertTrue(all_corners_complete(m.grid))
def test_prune_solution(self):
""" test the solution-pruning helper method """
# build a test Maze and solver, just as placeholders
m = Maze()
m.solver = RandomMouse()
m.solver.start = (0, 1)
m.solver.end = (0, 5)
# test the pruner does nothing if nothing needs to be done
sol = [(1, 1), (1, 2), (1, 3), (1, 4), (1, 5)]
assert sol == m.solver._prune_solution(sol)
# test the pruner correctly prunes one duplicate
sol1 = [(1, 1), (1, 2), (1, 3), (1, 4), (2, 4), (3, 4), (2, 4), (1, 4),
(1, 5)]
assert sol == m.solver._prune_solution(sol1)
# test the pruner correctly prunes two duplicates
sol2 = [(1, 1), (1, 2), (1, 3), (1, 4), (2, 4), (3, 4), (2, 4), (1, 4),
(2, 4), (3, 4), (2, 4), (1, 4), (1, 5)]
assert sol == m.solver._prune_solution(sol2)
# test the pruner correctly prunes the end point from the solution
sol3 = [(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (0, 5)]
assert sol == m.solver._prune_solution(sol3)
# test the pruner correctly prunes the start point from the solution
sol4 = [(0, 1), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5)]
assert sol == m.solver._prune_solution(sol4)
# test the pruner correctly prunes the start points and end points from the solution
sol5 = [(0, 1), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (0, 5)]
assert sol == m.solver._prune_solution(sol5)
# test the pruner correctly prunes multiple start points and end points from the solution
sol6 = [(0, 1), (0, 1), (0, 1), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5),
(0, 5), (0, 5)]
assert sol == m.solver._prune_solution(sol6)
# test the pruner correctly prunes a complex mess of a solution
sol7 = [(0, 1), (0, 1), (0, 1), (1, 1), (1, 2), (1, 3), (1, 4), (2, 4),
(3, 4), (2, 4), (1, 4), (1, 5), (0, 5), (0, 5)]
assert sol == m.solver._prune_solution(sol7)
# bonus: let's tests a long, and heavily redundant, solution
assert sol == m.solver._prune_solution(sol7 * 100)
# let's also test a couple edge cases
sol = []
assert sol == m.solver._prune_solution(sol)
sol = [(1, 1)]
assert sol == m.solver._prune_solution(sol)
sol = [(1, 1), (1, 2)]
assert sol == m.solver._prune_solution(sol)
sol = [(1, 1), (1, 2)]
assert sol == m.solver._prune_solution(sol * 100)
def test_dungeon_rooms_random_rooms(self):
""" test Dungeon Rooms maze-creation mazes a reasonably sane maze when generating some random rooms """
m = Maze()
m.generator = DungeonRooms(4,
4,
rooms=[[(1, 1), (3, 3)]],
hunt_order='random')
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
def test_dungeon_rooms_serpentine_rooms(self):
""" test DungeonRooms mazes are reasonably when generating some random rooms in a serpentine fashion """
m = Maze()
m.generator = DungeonRooms(4,
4,
rooms=[[(1, 1), (3, 3)]],
hunt_order='serpentine')
m.generate()
assert boundary_is_solid(m.grid)
assert all_passages_open(m.grid)
def testGridSize(self):
h = 4
w = 5
H = 2 * h + 1
W = 2 * w + 1
m = Maze()
m.generator = Prims(h, w)
m.generate()
self.assertEqual(m.grid.shape[0], H)
self.assertEqual(m.grid.shape[1], W)
def testGridSize(self):
h = 4
w = 5
H = 2 * h + 1
W = 2 * w + 1
m = Maze()
m.generator = Prims(h, w)
m.generate()
self.assertEqual(m.grid.height, H)
self.assertEqual(m.grid.width, W)
def testGridSize(self):
h = 4
w = 5
H = 2 * h + 1
W = 2 * w + 1
m = Maze()
m.generator = Prims(h, w)
m.generate()
self.assertEqual(m.grid.shape[0], H)
self.assertEqual(m.grid.shape[1], W)
def testDungeonRoomsGrid(self):
g = np.ones((7, 7), dtype=np.int8)
g[1] = [1,1,1,1,1,1,1]
g[2] = [1,1,1,1,1,1,1]
g[3] = [1,1,0,0,0,1,1]
g[4] = [1,1,0,0,0,1,1]
g[5] = [1,1,0,0,0,1,1]
m = Maze()
m.generator = DungeonRooms(4, 4, grid=g)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
def testDungeonRoomsGrid(self):
g = MazeArray(7, 7)
g[1] = array('b', [1,1,1,1,1,1,1])
g[2] = array('b', [1,1,1,1,1,1,1])
g[3] = array('b', [1,1,0,0,0,1,1])
g[4] = array('b', [1,1,0,0,0,1,1])
g[5] = array('b', [1,1,0,0,0,1,1])
m = Maze()
m.generator = DungeonRooms(4, 4, grid=g)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
def testMonteCarlo(self):
h = 4
w = 5
H = 2 * h + 1
W = 2 * w + 1
m = Maze()
m.generator = Prims(h, w)
m.solver = Collision()
m.generate_monte_carlo(3)
# grid size
self.assertEqual(m.grid.shape[0], H)
self.assertEqual(m.grid.shape[1], W)
# test entrances are outer
self.assertTrue(self._on_edge(m.grid, m.start))
self.assertTrue(self._on_edge(m.grid, m.end))
def testMonteCarlo(self):
h = 4
w = 5
H = 2 * h + 1
W = 2 * w + 1
m = Maze()
m.generator = Prims(h, w)
m.solver = WallFollower()
m.generate_monte_carlo(3)
# grid size
self.assertEqual(m.grid.height, H)
self.assertEqual(m.grid.width, W)
# test entrances are outer
self.assertTrue(self._on_edge(m.grid, m.start))
self.assertTrue(self._on_edge(m.grid, m.end))
def testPerturbation(self):
m1 = Maze()
m1.generator = TrivialMaze(4, 5)
m1.generate()
m = Maze()
m.generator = Perturbation(m1.grid)
m.generate()
self.assertTrue(self.boundary_is_solid(m.grid))
self.assertTrue(self.all_passages_open(m.grid))
self.assertTrue(self.all_corners_complete(m.grid))
def testGeneratorWipe(self):
h = 4
w = 5
m = Maze()
m.generator = Prims(h, w)
m.generate()
m.generate_entrances()
m.generate()
self.assertTrue(m.start is None)
self.assertTrue(m.end is None)
self.assertTrue(m.solutions is None)
def testInnerEntrances(self):
h = 4
w = 5
m = Maze()
m.generator = Prims(h, w)
m.generate()
m.generate_entrances(False, False)
self.assertFalse(self._on_edge(m.grid, m.start))
self.assertFalse(self._on_edge(m.grid, m.end))
def testOuterEntrances(self):
h = 4
w = 5
m = Maze()
m.generator = Prims(h, w)
m.generate()
m.generate_entrances()
self.assertTrue(self._on_edge(m.grid, m.start))
self.assertTrue(self._on_edge(m.grid, m.end))
def testCuldeSacFiller(self):
"""test against a maze with outer/inner entraces"""
starts = [True, False]
ends = [True, False]
g = self._example_cul_de_sac_maze()
for s in starts:
for e in ends:
m = Maze()
m.generator = Prims(3, 3)
m.grid = g
if s and e:
m.start = (1, 0)
m.end = (5, 6)
elif not s and not e:
m.start = (1, 1)
m.end = (5, 5)
else:
if s:
m.start = (1, 1)
m.end = (5, 5)
else:
m.start = (1, 1)
m.end = (5, 6)
m.solver = CuldeSacFiller()
m.solve()
for sol in m.solutions:
self.assertFalse(self._duplicates_in_solution(sol))
self.assertTrue(self._one_away(m.start, sol[0]))
self.assertTrue(self._one_away(m.end, sol[-1]))
def _create_maze_with_varied_entrances(self, start_outer=True, end_outer=True):
"""create a maze with entrances inside/outside"""
m = Maze()
m.generator = Prims(4, 5)
m.generate()
if start_outer and end_outer:
m.generate_entrances()
elif not start_outer and not end_outer:
m.generate_entrances(False, False)
elif start_outer:
m.generate_entrances(True, False)
else:
m.generate_entrances(False, True)
return m