Short answer: you need to run with the module name, not the file name: pytest –cov sample test.py Long answer: One comment in the answer you linked (How to properly use coverage.py in Python?) explains that this doesn’t seem to work if the file you are trying to get the coverage of is a module … Read more
The solution was: [run] omit = ../*migrations*
I encountered the same issue when calling “py.test –cov …” from tox. I found a hint on this page: http://blog.ionelmc.ro/2014/05/25/python-packaging/ even though it does not mention this explicitly. Using “–develop” for tox will make sure that coverage data gathering is called from the same directory as coverage analysis. This section in tox.ini made it work … Read more
I found a different solution. I used combine feature (read here) So I run my coverage like: coverage run -p and then I do coverage combine. If you want to keep the old reports, you can use –keep. That’s all. It generates 1 combined report.
Instead of using the pytest-cov plugin, use coverage to run pytest: coverage run -m pytest …. That way, coverage will be started before pytest.
@hynekcer gave me the right idea. But basically the easiest solution lies somewhere else: Get rid of pytest-cov! Use coverage run –source jedi -m py.test coverage report instead!!! This way you’re just running a coverage on your current py.test configuration, which works perfectly fine! It’s also philosophically the right way to go: Make each program … Read more
For me the best solution was what @Wesley mentioned in his comment to the accepted answer, specifically replacing ‘pass’ with a docstring for the abstract property, e.g.: class MyAbstractClass(object): __metaclass__ = ABCMeta @abstractproperty def myproperty(self): “”” this property is too abstract to understand. “””
Add –source=. to the coverage run line. It will both limit the focus to the current directory, and will search for .py files that weren’t run at all.
You can omit modules with the –omit flag. It takes a comma-separated list of path prefixes. So for example: coverage run my_program.py coverage report –omit=path/to/3rdparty
coverage (used by pytest-cov) needs the tests folder to contain an __init__.py before it will collect any data. I added __init__.py to the tests folder and then coverage collected the data as expected. Refer to http://thomas-cokelaer.info/blog/2017/01/pytest-cov-collects-no-data-on-travis/