def test_type(self):
        rset = event.ResultSet()
        with pytest.raises(NotImplementedError):
            rset.extend([])
        with pytest.raises(NotImplementedError):
            rset.extend(False)
def path(self,x1,y1,x2,y2):
		self.board[y1:y2+1,x1:x2+1] = self.color