Usage and invocations¶
When using pytest-django, django-admin.py or manage.py is not used to run tests. This makes it possible to invoke pytest and other plugins with all its different options directly.
Running a test suite is done by invoking the pytest command directly:
Specific test files or directories can be selected by specifying the test file names directly on the command line:
pytest test_something.py a_directory
See the pytest documentation on Usage and invocations for more help on available parameters.
Additional command line options¶
--fail-on-template-vars - fail for invalid variables in templates¶
Fail tests that render templates which make use of invalid template variables.
Running tests in parallel with pytest-xdist¶
pytest-django supports running tests on multiple processes to speed up test suite run time. This can lead to significant speed improvements on multi core/multi CPU machines.
This requires the pytest-xdist plugin to be available, it can usually be installed with:
pip install pytest-xdist
You can then run the tests by running:
pytest -n <number of processes>
When tests are invoked with xdist, pytest-django will create a separate test database for each process. Each test database will be given a suffix (something like “gw0”, “gw1”) to map to a xdist process. If your database name is set to “foo”, the test database with xdist will be “test_foo_gw0”, “test_foo_gw1” etc.
See the full documentation on pytest-xdist for more information. Among other features, pytest-xdist can distribute/coordinate test execution on remote machines.