How can one get an accurate test coverage report when using py.test
+ gevent
?
I've already tried the obvious thing, using the pytest-cov
plugin for py.test
, but it generates inaccurate reports when gevent is in use .
The gevent coverage issue was fixed in coveragepy
recently.
However, pytest-cov
fails to run with coverage>=4
.
One possible fix, is to run py.test
with the later versions of coverage.py
without using the pytest-cov
plugin.
First, install coverage >= 4
and uninstall the pytest-cov
plugin:
pip install --pre --upgrade coverage
pip uninstall pytest-cov
Add the following setting to .coveragerc
:
[run]
concurrency = gevent
Then run with:
coverage run -m py.test
(instead of the regular py.test
run)
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