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from __future__ import absolute_import
from django.core.exceptions import ImproperlyConfigured
from django.db.models.loading import get_app
from django.test import TestCase
from django.test.utils import override_settings
from django.utils import six
from .models import Empty
class EmptyModelTests(TestCase):
def test_empty(self):
m = Empty()
self.assertEqual(m.id, None)
m.save()
Empty.objects.create()
self.assertEqual(len(Empty.objects.all()), 2)
self.assertTrue(m.id is not None)
existing = Empty(m.id)
existing.save()
class NoModelTests(TestCase):
"""
Test for #7198 to ensure that the proper error message is raised
when attempting to load an app with no models.py file.
Because the test runner won't currently load a test module with no
models.py file, this TestCase instead lives in this module.
It seemed like an appropriate home for it.
"""
@override_settings(INSTALLED_APPS=("modeltests.empty.no_models",))
def test_no_models(self):
with six.assertRaisesRegex(self, ImproperlyConfigured,
'App with label no_models is missing a models.py module.'):
get_app('no_models')
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