Running tests written for nose
pytest has basic support for running tests written for nose.
After Installation type:
python setup.py develop # make sure tests can import our package
py.test # instead of 'nosetests'
and you should be able to run your nose style tests and
make use of pytest’s capabilities.
Supported nose Idioms
- setup and teardown at module/class/method level
- SkipTest exceptions and markers
- setup/teardown decorators
- yield-based tests and their setup
- general usage of nose utilities
Unsupported idioms / known issues
- unittest-style setUp, tearDown, setUpClass, tearDownClass
are recognized only on unittest.TestCase classes but not
on plain classes. nose supports these methods also on plain
classes but pytest deliberately does not. As nose and pytest already
both support setup_class, teardown_class, setup_method, teardown_method
it doesn’t seem useful to duplicate the unittest-API like nose does.
If you however rather think pytest should support the unittest-spelling on
plain classes please post to this issue.
- nose imports test modules with the same import path (e.g.
tests.test_mod) but different file system paths
(e.g. tests/test_mode.py and other/tests/test_mode.py)
by extending sys.path/import semantics. pytest does not do that
but there is discussion in issue268 for adding some support. Note that
nose2 choose to avoid this sys.path/import hackery.
- nose-style doctests are not collected and executed correctly,
also doctest fixtures don’t work.
- no nose-configuration is recognized