python 3.7.1
pytest 4.4.0
pytest-ordering 0.6

there are two testClass, and I find the test will run as order which I set.

import unittest
import pytest
class TestA(unittest.TestCase):
    @pytest.mark.run(order=0)
    def test_0(self):
        pass 

    @pytest.mark.run(order=2)
    def test_2(self):
        pass 
    ...  #other test_method

class TestB(unittest.TestCase):
    @pytest.mark.run(order=1)
    def test_1(self):
        pass 
    ...  #other test_method

run the code, I find the tests run as test_0-->test_1-->test_2.

But, I want to the tests run all test_method in a TestClass and then run another TestClass.
like test_0-->test_2-->test_1, or test_1-->test_0-->test_2.

any way, the design of now is cool。
I think add a param to control the run order only work in a TestClass will be better.
Because the TestA 's setUpClass will run again after run test_1，if setUpClass is time long,will be bad feel.