Test unmanaged models

settings.py

TEST_RUNNER = b'test_runner.CustomRunner'

test_runner.py

from django_nose import NoseTestSuiteRunner


class CustomRunner(NoseTestSuiteRunner):
    def setup_test_environment(self, *args, **kwargs):
        from django.db.models.loading import get_models
        self.unmanaged_models = [m for m in get_models() if not m._meta.managed]
        for m in self.unmanaged_models:
            m._meta.managed = True
        super(CustomRunner, self).setup_test_environment(*args, **kwargs)

    def teardown_test_environment(self, *args, **kwargs):
        super(CustomRunner, self).teardown_test_environment(*args, **kwargs)
        # reset unmanaged models
        for m in self.unmanaged_models:
            m._meta.managed = False