Ever tried to unit test custom fields or abstract models? If so, you probably used a solution like [this one](http://djangosnippets.org/snippets/2843/). It surely works, but it has some issues:
1. Runs 'syncdb' several times.
2. It's not automatic. You must add the mixin or copy the code to each of the TestCases.
This test runner adds to INSTALLED_APPS the 'app.tests' package for **each of the specified** apps, **before the 'syncdb' happens**.
This has the [discovery runner](https://pypi.python.org/pypi/django-discover-runner) as a dependency (for 1.5 only, it will be the default in 1.6). However, it comes as a mixin so it should be easily pluggable to other test runners.
If you intend to use the mixin with other runners, note that it imports 'app.tests.models' so it won't work with tests modules (tests.py). Your runner must "use" test packages (like discovery runner).
# USAGE
# in your settings.py:
TESTAPPS_INSTALL = (
'app1',
'app2',
# ...
)
TEST_RUNNER = 'testapp_runner.DiscoverTestAppRunner' # example import path
# extra apps in command line.
# run test for apps 'app1' to 'app4', adding 'app3' and 'app4' to the TESTAPPS_INSTALL setting.
manage.py test app1 app2 app3 app4 --with-test-app=app3 --with-test-app=app4
- django
- testing
- apps
- testrunner
- test-runner
- app-models
South documentation [contains a description](http://south.readthedocs.org/en/0.7.6/fixtures.html#fixtures-from-migrations) of the way you can load fixtures inside the data-migrations.
def forwards(self, orm):
from django.core.management import call_command
call_command("loaddata", "my_fixture.json")
It seems pretty clear and easy, but in fact it does not work the way you expect from south migrations, because the fixture loading does not engage the **orm** object. So, it allows **loaddata** management command to use standard models loading mechanism, and it would provide the most recent version of the models, obviously, which may not correspond to the schema of the fixture`s data.
To be ensured that migration will use appropriate version of the models for fixture loading you could use code like follows:
class Migration(DataMigration):
def forwards(self, orm):
load_fixture('my_fixture.json', orm)
class Migration(DataMigration):
def forwards(self, orm):
with southern_models(orm):
call_command("loaddata", "my_fixture.json")
- fixtures
- migration
- fixture
- south
- datamigration