PyCharm运行Pytest测试时无法识别根conftest.py中Fixtures的问题

项目目录结构 #

product-testing/
├── conftest.py  # 根目录通用Fixtures
├── tests/
│   └── grpc_tests/
│       └── collections/
│           └── test_collections.py
└── fixtures/
    └── collections/
        └── conftest.py  # 测试专用Fixtures

问题现象 #

在PyCharm中点击测试函数旁的「运行按钮」执行单个测试时，Pytest无法初始化根目录conftest.py中的Fixtures，但通过终端执行pytest .或指定单个测试的命令（如pytest -k "test_create_multicollection" ./tests/grpc_tests/collections/）时完全正常。

测试代码示例 #

import datetime
import allure
from faker import Faker
from fixtures.collections.conftest import collection

fake = Faker()

@allure.title("获取集合列表")
def test_get_collections_list(collection, postgres):
    with allure.step("发送获取集合的请求"):
        response = collection.collection_list(
            limit=1,
            offset=0,
            # ...其余代码
        )

专用Fixtures文件（fixtures/collections/conftest.py）片段 #

import datetime
import pytest

from faker import Faker
from path.to.file import pim_collections_pb2

fake = Faker()

@pytest.fixture(scope="session")
def collection(grpc_pages):
    def create_collection(collection_id=None, store_name=None, items_ids=None, **kwargs):
        default_params = {
            "id": collection_id,
            "store_name": store_name,
            "item_ids": items_ids,
            "is_active": True,
            "description_eng": fake.text(),
            # 其余代码

根目录通用Fixtures文件（conftest.py）内容 #

import pytest
from faker import Faker

from pages.manager import DBManager, GrpcPages, RestPages

fake = Faker()

@pytest.fixture(scope="session")
def grpc_pages():
    return GrpcPages()

@pytest.fixture(scope="session")
def rest_pages():
    return RestPages()

@pytest.fixture(scope="session")
def postgres():
    return DBManager()

#其他代码

错误信息 #

PyCharm运行测试时抛出的错误：

test setup failed
file .../tests/grpc_tests/collections/test_collections.py, line 9
    @allure.title("创建多集合")
    def test_create_multicollection(collection, postgres):

file .../fixtures/collections/conftest.py, line 10
    @pytest.fixture(scope="session")
    def collection(grpc_pages):
E       fixture 'grpc_pages' not found
>       available fixtures: *session*faker, cache, capfd, capfdbinary, caplog, capsys, capsysbinary, collection, doctest_namespace, factoryboy_request, faker, monkeypatch, pytestconfig, record_property, record_testsuite_property, record_xml_attribute, recwarn, tmp_path, tmp_path_factory, tmpdir, tmpdir_factory
>       use 'pytest --fixtures [testpath]' for help on them.

尝试过的解决方案及问题 #

尝试直接从根目录conftest.py导入缺失的Fixtures：

from conftest import grpc_pages

单独运行测试时有效，但执行pytest .等全局命令时出现导入错误：

ImportError while importing test module '/path/to/test_collections.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
.../importlib/init.py:127: in import_module
    return bootstrap.gcd_import(name[level:], package, level)
tests/.../test_collections.py:6: in <module>
    from conftest import grpc_pages
E   ImportError: cannot import name 'grpc_pages' from 'conftest' (/path/to/fixtures/users/conftest.py)

Pytest会优先从fixtures/users/conftest.py查找导入，而非根目录文件。

问题 #

1. 是否有人遇到过类似情况：PyCharm运行单个测试时无法识别根目录conftest.py的Fixtures，但终端运行正常？
2. 如何修复该问题，让PyCharm的运行按钮和命令行Pytest都能一致正常工作？

环境信息 #

• Pytest版本：7.4.4
• PyCharm版本：2023.2.1
• Python版本：3.9.6

内容的提问来源于stack exchange，提问作者llRub3Nll