PyCharm, Django: zero code coverage

Question

PyCharm has a \"Run with Coverage\" action for Django test targets. This runs the tests, but shows zero test coverage (0% files, not covered in the project pane, and all red in

Answer 1

I had a similar issue. I ended up generating xml data using nosetests --cover-xml, but you can also generate an xml from a previous coverage.py run with coverage xml

Then that report can be conveniently loaded in PyCharm/IDEA from the Analyze -> Show Coverage Data… -> + button and selecting the xml file.

Answer 2

I had a similar issue using the PyCharm bundled coverage.py

The tests were running fine, but the coverage results were not loaded, "0%" or "not covered" everywhere.

There was an error logged in the PyCharm console though, following the output of the tests, that was coverage.py related:

/System/Library/Frameworks/Python.framework/Versions/2.6/bin/python 
"/Applications/PyCharm 2.5 EAP.app/helpers/run_coverage.py" 
run "--omit=/Applications/PyCharm 2.5 EAP.app/helpers" bin/test

Creating test database for alias 'default'...
................................
----------------------------------------------------------------------
Ran xx tests in xxs

OK
No source for code: '/path/file.py' (<- error)

Process finished with exit code 0

My solution was to run the bundled coverage.py with the option to ignore errors: "-i".

I've edit the bundled "run_coverage.py" file, you can see its location in the console output, and add the "-i" option in the last line:

main(["xml", "-o", coverage_file + ".xml"])

to:

main(["xml", "-i", "-o", coverage_file + ".xml"])

This worked for me, the error is ignored and all the coverage data are now loaded in the UI.

If using "-i" solve the issue on your side, a better solution would be to fix the errors, but until then, you'll see coverage results.

Answer 3

I've also been trying to solve this issue in Ubuntu.

At the moment I tried with both the apt-get Python and the Enthought Canopy stack, with no success. In Windows however it does work (using Canopy).

I've used the following code:

# in a.py
class A(object):

    def p(self, a):
        return a

# in test_a.py
from unittest import TestCase, main
from a import A

class TestA(TestCase):
    def test_p(self):
        inst = A()
        val = inst.p("a")
        self.assertEqual("a", val)


if _name_ == "__main__":
    main()

Answer 4

If you access your project via any symlink in the path, coverage display will fail.

Try to open same project through real path, and you will get correct behavior.

https://youtrack.jetbrains.com/issue/PY-17616

PS: Refreshing old question, as bug still has not been fixed.