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django-registration / registration / tests / settings.py

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from registration.settings.common import *

ROOT_URLCONF = 'registration.tests.urls'

DATABASES = {
    'default': {
        'ENGINE': 'sqlite3',
        'NAME': ':memory:',
    }
}

INSTALLED_APPS += ('django_nose', )
TEST_RUNNER = 'django_nose.run_tests'