def testAddWallToNonExistentCell(self):
maze = Maze(2, 2)
with self.assertRaises(
IndexError,
msg="`cellIndex` out of range (55 not between 0 and 3).",
):
maze.addWallBetween(2, 55)
def testAddWallBetweenNonAdjacentCells(self):
maze = Maze(3, 3)
# add invalid wall between top left and bottom right cells
with self.assertRaises(
ValueError,
msg="Cell at index 0 is not adjacent to cell at 8.",
):
maze.addWallBetween(0, 8)
def testAddWallAgain(self):
maze = Maze(4, 4, False)
# add a wall from first cell
maze.addWallBetween(0, 1)
self.assertCountEqual(maze.getConnectionsOfCellAtIndex(0), [4])
# add another wall from first cell
maze.addWallBetween(0, 4)
self.assertCountEqual(maze.getConnectionsOfCellAtIndex(0), [])
def testAddWallBetweenSelf(self):
maze = Maze(2, 2)
# add a wall between `x` and `x`, i.e., to itself
with self.assertRaises(
Exception,
msg=
"Node index 0 already does not exist in node at index 0's connections.",
):
maze.addWallBetween(0, 0)
def testAddExistentWall(self):
maze = Maze(3, 3, True)
# add a wall that already exists
with self.assertRaises(
Exception,
msg=
"Node index 1 already does not exist in node at index 0's connections.",
):
maze.addWallBetween(0, 1)