Run tests of a standalone Django package.

runtests.py

import sys

from django.conf import settings

settings.configure(
    DEBUG=True,
    DATABASES={'default': {'ENGINE': 'django.db.backends.sqlite3'},
               'secondary': {'ENGINE': 'django.db.backends.sqlite3'}},
    INSTALLED_APPS=['django.contrib.auth',
                    'django.contrib.contenttypes',
                    'sjcommon'])

from django.test.simple import DjangoTestSuiteRunner

test_runner = DjangoTestSuiteRunner(verbosity=1)
failures = test_runner.run_tests(['sjcommon'])
if failures:
    sys.exit(failures)