实验现象： conftest.py ( 内有代码 scope=‘seesion‘ ）， 如果是放在项目根目录下只执行一次； 如果放在项目 子package中，并且有多个 子package，会被执行多次。
疑问：scope=‘seesion‘ 说好的不是只执行一次吗？ 为什么会执行多次 ？
目录结构如下：
test_aa 目录下 conftest.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 import pytest @pytest.fixture(scope=‘session‘, autouse=True) def aa(): print(‘\n我是test_aa目录下的conftest.py‘)
test_aa 目录下 test_one.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:09 class TestAA(): def test_01(self): print(‘=========test_01========‘) def test_02(self): print(‘=========test_02========‘) class TestBB(): def test_03(self): print(‘=========test_03========‘) def test_04(self): print(‘=========test_04========‘)
test_aa 目录下 test_two.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:09 class TestCC(): def test_05(self): print(‘\n=========test_05========‘) def test_06(self): print(‘=========test_06========‘) class TestDD(): def test_07(self): print(‘=========test_07========‘) def test_08(self): print(‘=========test_08========‘)
test_bb 目录下 conftest.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 import pytest @pytest.fixture(scope=‘session‘, autouse=True) def bb(): print(‘\n我是test_bb目录下的conftest.py‘)
test_bb目录下 test_four.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:09 class TestEE(): def test_09(self): print(‘=========test_09========‘) def test_10(self): print(‘=========test_10========‘) class TestFF(): def test_11(self): print(‘=========test_11========‘) def test_12(self): print(‘=========test_12========‘)
test_bb目录下 test_three.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 class TestGG(): def test_13(self): print(‘\n=========test_13========‘) def test_14(self): print(‘=========test_14========‘) class TestHH(): def test_15(self): print(‘=========test_15========‘) def test_16(self): print(‘=========test_16========‘)
test_cc 目录下 conftest.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 import pytest @pytest.fixture(scope=‘session‘, autouse=True) def cc(): print(‘\n我是test_cc目录下的conftest.py‘)
test_cc目录下 test_five.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 class TestII(): def test_17(self): print(‘=========test_17========‘) def test_18(self): print(‘=========test_18========‘) class TestJJ(): def test_19(self): print(‘=========test_19========‘) def test_20(self): print(‘=========test_20========‘)
test_cc目录下 test_six.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 class TestKK(): def test_21(self): print(‘\n=========test_21========‘) def test_22(self): print(‘=========test_22========‘) class TestMM(): def test_23(self): print(‘=========test_23========‘) def test_24(self): print(‘=========test_24========‘)
项目根目录下的 conftest.py 代码如下：
# -*- coding:utf-8 -*- # @Author: Sky # @Email: 2780619724@qq.com # @Time: 2021/7/18 11:10 import pytest @pytest.fixture(scope=‘session‘, autouse=True) def day07(): print(‘\n我是day07目录下的conftest.py‘)
执行结果如下：
D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day07>pytest -s ============================================================ test session starts ============================================================= platform win32 -- Python 3.8.6, pytest-5.4.3, py-1.10.0, pluggy-0.13.1 rootdir: D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day07 plugins: allure-pytest-2.9.43, html-2.1.1, metadata-1.11.0 collected 24 items test_aa\test_one.py 我是day07目录下的conftest.py 我是test_aa目录下的conftest.py =========test_01======== .=========test_02======== .=========test_03======== .=========test_04======== . test_aa\test_two.py =========test_05======== .=========test_06======== .=========test_07======== .=========test_08======== . test_bb\test_four.py 我是test_bb目录下的conftest.py =========test_09======== .=========test_10======== .=========test_11======== .=========test_12======== . test_bb\test_three.py =========test_13======== .=========test_14======== .=========test_15======== .=========test_16======== . test_cc\test_five.py 我是test_cc目录下的conftest.py =========test_17======== .=========test_18======== .=========test_19======== .=========test_20======== . test_cc\test_six.py =========test_21======== .=========test_22======== .=========test_23======== .=========test_24======== . ============================================================= 24 passed in 0.13s ============================================================= D:\SkyWorkSpace\WorkSpace\Pytest\Temp\day07>
另外说明，当我把上面代码中所有 conftest.py 中 的 scope = session 改成 package ，执行结果保持不变。
源码中是这样写的：
The scope for which this fixture is shared; one of ``"function"`` (default), ``"class"``, ``"module"``, ``"package"`` or ``"session"``.