我用一个新的更简单的假设置重新创建了这个问题。
我有一个框架需要来自 pytest 的命令 channel 变量。此变量称为环境,但当我尝试访问该变量时,我得到一个 AttributeError:“模块”对象没有属性“配置”。
这是我的测试设置:
我知道 py.test 按以下顺序加载:
- Pytest 插件
- 外部插件
- conftest.py 文件,从外层文件到内层文件。
我想我遇到了一个问题,当我加载内部 conftest.py 时,我尝试导入框架。当我导入框架时,它会尝试访问 py.test 变量。这个变量,即使 pytest 已经在我的 outer-conftest.py 的 pytest_addoption() 部分中看到它,还没有准备好在 pytest 中使用。
外赛内容:
# content of conftest.py
import pytest
def pytest_addoption(parser):
print("First")
parser.addoption("--cmdopt", action="store", default="type1",
help="my option: type1 or type2")
@pytest.fixture
def cmdopt(request):
return request.config.getoption("cmdopt")
framework.py 的内容:
import pytest
class Environment:
@staticmethod
def env():
'''Determine which environment we are operating in,
if it fails - we assume dca
'''
return pytest.config.getoption('cmdopt')
class Users:
__pool = Environment.env()
内部conftest.py内容:
import pytest
from testing.framework import Environment
test_sample.py 的内容:
# content of test_sample.py
def test_answer(cmdopt):
if cmdopt == "type1":
print ("first")
elif cmdopt == "type2":
print ("second")
assert 0 # to see what was printed
我在 testing/文件夹中运行以下命令: py.test -q --cmdopt=type2
我收到以下错误:
First
Second
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/_pytest/config.py", line 513, in getconftestmodules
return self._path2confmods[path]
KeyError: local('/home/damonp/Repos/stuff/<my-name-redacted>/testing/tests')
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/_pytest/config.py", line 537, in importconftest
return self._conftestpath2mod[conftestpath]
KeyError: local('/home/damonp/Repos/stuff/<my-name-redacted>/testing/tests/conftest.py')
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/_pytest/config.py", line 543, in importconftest
mod = conftestpath.pyimport()
File "/usr/local/lib/python3.4/dist-packages/py/_path/local.py", line 641, in pyimport
__import__(modname)
File "/home/damonp/Repos/stuff/<my-name-redacted>/testing/tests/conftest.py", line 5, in <module>
from testing.framework import Environment
File "/home/damonp/Repos/stuff/<my-name-redacted>/testing/framework.py", line 14, in <module>
class Users:
File "/home/damonp/Repos/stuff/<my-name-redacted>/testing/framework.py", line 15, in Users
__pool = Environment.env()
File "/home/damonp/Repos/stuff/<my-name-redacted>/testing/framework.py", line 11, in env
return pytest.config.getoption('cmdopt')
AttributeError: 'module' object has no attribute 'config'
ERROR: could not load /home/damonp/Repos/stuff/<my-name-redacted>/testing/tests/conftest.py
是否有使用依赖于 pytest 命令行变量的外部框架的好方法?
最佳答案
理想情况下,您应该拥有从框架中为您提供对象的固定装置,例如 User(s) 实例。
这些固定装置可以 receive cmdopt
fixture,然后可以将该值传递给 init 方法或工厂函数。
例如
@pytest.fixture(scope="function")
def user(cmdarg):
return Users(cmdarg, ...)
然后在你的测试中,
def test_something(user):
# do something with user object
关于python - 尝试访问命令行变量时出现 Pytest KeyError,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32995122/