def test_is_walkable(self):
type0 = CellType('Test0', True, 'Test')
type1 = CellType('Test1', False, 'Test')
cell0 = Cell(0, 0, type0)
self.assertFalse(cell0.is_walkable(None))
cell1 = Cell(0, 0, type1)
self.assertTrue(cell1.is_walkable(None))
cell1.creature = 1
self.assertFalse(cell1.is_walkable(None))
