New issue 458: KeyError: 'COV_CORE_SOURCE' when clearing environment
https://bitbucket.org/hpk42/pytest/issue/458/keyerror-cov_core_source-when-clearing
space one:
For security purposes i am clearing the environment in my application.
This raises the following error in combination with coverage.
python2 -m pytest --cov-report html --cov test_broken.py test_broken.py
```
#!python
import os
def test_broken():
os.environ.clear()
```
of course the .clear() is not done in the test definition but in the code which
is tested.
```
#!python
test_broken.py .Traceback (most recent call last):
File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/usr/lib/python2.7/site-packages/pytest.py", line 10, in <module>
raise SystemExit(pytest.main())
File "/usr/lib/python2.7/site-packages/_pytest/config.py", line 19, in main
exitstatus = config.hook.pytest_cmdline_main(config=config)
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 368, in __call__
return self._docall(methods, kwargs)
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 379, in _docall
res = mc.execute()
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 297, in execute
res = method(**kwargs)
File "/usr/lib/python2.7/site-packages/_pytest/main.py", line 111, in
pytest_cmdline_main
return wrap_session(config, _main)
File "/usr/lib/python2.7/site-packages/_pytest/main.py", line 104, in
wrap_session
exitstatus=session.exitstatus)
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 368, in __call__
return self._docall(methods, kwargs)
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 379, in _docall
res = mc.execute()
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 297, in execute
res = method(**kwargs)
File "/usr/lib/python2.7/site-packages/_pytest/terminal.py", line 325, in
pytest_sessionfinish
__multicall__.execute()
File "/usr/lib/python2.7/site-packages/_pytest/core.py", line 297, in execute
res = method(**kwargs)
File "/usr/lib/python2.7/site-packages/pytest_cov.py", line 98, in
pytest_sessionfinish
self.cov_controller.finish()
File "/usr/lib/python2.7/site-packages/cov_core.py", line 142, in finish
self.unset_env()
File "/usr/lib/python2.7/site-packages/cov_core.py", line 65, in unset_env
del os.environ['COV_CORE_SOURCE']
File "/usr/lib/python2.7/os.py", line 496, in __delitem__
del self.data[key]
KeyError: 'COV_CORE_SOURCE'
```
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