@Test
	public void testNumberOfDoorways() 
	{
		int numDoors = 0;
		int totalCells = board.getNumCols() * board.getNumRows();
		Assert.assertEquals(506, totalCells);
		for (int i=0; i<totalCells; i++)
		{
			BoardCell cell = board.getCellAt(i);
			if (cell.isDoorway())
				numDoors++;
		}
		Assert.assertEquals(16, numDoors);
	}