pytest配置文件：

目录结构：

pytest.ini

[pytest]
addopts = -s -v
testpaths = ./scripts
python_files = test_*.py
python_classes = Test*
python_functions = test_*

test_case.py

def test_case_01():
    assert 1

class TestCase(object):
    def test_case_01(self):
        """再执行三"""
        assert 1

    def test_case_02(self):
        """再执行六"""
        assert {"title":"v2ex"} != {"title":"V2EX"}

    def test_case_03(self):
        """再执行九"""
        assert 1

    def setup_class(self):
        """先执行一setup_class 类级别的setup"""
        print("类级别的setup")

    def teardown_class(self):
        """再执行十一teardown_class 类级别的teardown"""
        print("类级别的teardown")

    def setup_method(self):
        """再执行二setup_method 类中方法级别的setup"""
        """再执行五setup_method 类中方法级别的setup"""
        """再执行八setup_method 类中方法级别的setup"""
        print("类中方法级别的setup")

    def teardown_method(self):
        """再执行四teardown_method 类中方法级别的teardown"""
        """再执行七teardown_method 类中方法级别的teardown"""
        """再执行十teardown_method 类中方法级别的teardown"""
        print("类中方法级别的teardown  ")

test_login.py

def test_login1():
    assert 0

def test_login2():
    assert 1

结果：

=========================================================== test session starts ============================================================
platform win32 -- Python 3.6.6, pytest-5.3.2, py-1.8.1, pluggy-0.13.1 -- c:\python36\python.exe
cachedir: .pytest_cache
rootdir: D:\s27\day68, inifile: pytest.ini, testpaths: ./scripts
collected 6 items

scripts/test_case.py::test_case_01 PASSED
scripts/test_case.py::TestCase::test_case_01 类级别的setup
类中方法级别的setup
PASSED类中方法级别的teardown

scripts/test_case.py::TestCase::test_case_02 类中方法级别的setup
PASSED类中方法级别的teardown

scripts/test_case.py::TestCase::test_case_03 类中方法级别的setup
PASSED类中方法级别的teardown
类级别的teardown

scripts/test_login.py::test_login1 FAILED
scripts/test_login.py::test_login2 PASSED

================================================================= FAILURES =================================================================
_______________________________________________________________ test_login1 ________________________________________________________________

def test_login1():
> assert 0
E assert 0

scripts\test_login.py:4: AssertionError
======================================================= 1 failed, 5 passed in 0.14s ========================================================