之前遇到了很多次類似的問題,即pytest加載conftest.py的時候報如下的錯誤
我的目錄結構是這樣的:
APP_AutoTest/
|- TestCases/
|- __init__.py
|- conftest.py
|- test_login.py
|- test_welcome.py
後來将目錄名改成test_cases,可以正常運作了。testcases也可以,就是不能大寫
pytest官方文檔聲明了conftest.py的存放位置,在我看來有點歧義
conftest.py: local per-directory plugins中說:
Note
If you have
files which do not reside in a python package directory (i.e. one containing an
conftest.py
) then “import conftest” can be ambiguous because there might be other
__init__.py
files as well on your
conftest.py
or
PYTHONPATH
. It is thus good practice for projects to either put
sys.path
under a package scope or to never import anything from a
conftest.py
file.
conftest.py
大意是,如果conftest.py放在包的外面,那麼導入conftest的時候可能會産生歧義,因為PYTHONPATH或sys上可能還有别的conftest.py。比如你在test_cases包内定義了一個conftest.py,又在工程目錄下定義了一個conftest.py。是以對項目而言,做好的做法是将conftest.py放在包内或從不導入任何的conftest.py檔案
在Plugin discovery order at tool startup中說:
Note that pytest does not find files in deeper nested sub directories at tool startup. It is usually a good idea to keep your
conftest.py
file in the top level test or project root directory.
conftest.py
在pytest啟動時,不會遞歸的去查找子目錄下的conftest.py檔案。建議将conftest.py放在測試包下面或項目根目錄
總結以上内容,有幾點注意:
1. conftest.py最好放在測試包下,測試包的命名以test開頭,不能是大寫
APP_AutoTest/
|- test_cases/
|- __init__.py
|- test_login.py
|- test_welcome.py
|- test_demo/
|- __init__.py
|- conftest.py