django/tests/test_runner_apps/databases/tests.py

import unittest


class NoDatabaseTests(unittest.TestCase):
    def test_nothing(self):
        pass


class DefaultDatabaseTests(NoDatabaseTests):
    databases = {'default'}


class OtherDatabaseTests(NoDatabaseTests):
    databases = {'other'}


class AllDatabasesTests(NoDatabaseTests):
    databases = '__all__'