mirror of
https://github.com/django/django.git
synced 2025-10-30 17:16:10 +00:00
107 lines
4.1 KiB
Python
107 lines
4.1 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import os
|
|
import sys
|
|
import warnings
|
|
|
|
from django.apps import apps
|
|
from django.core.exceptions import ImproperlyConfigured
|
|
from django.db import models
|
|
from django.test import TestCase
|
|
from django.test.utils import extend_sys_path
|
|
from django.utils import six
|
|
from django.utils._os import upath
|
|
from django.utils.deprecation import RemovedInDjango19Warning
|
|
|
|
|
|
class EggLoadingTest(TestCase):
|
|
|
|
def setUp(self):
|
|
self.egg_dir = '%s/eggs' % os.path.dirname(upath(__file__))
|
|
|
|
def tearDown(self):
|
|
apps.clear_cache()
|
|
|
|
def test_egg1(self):
|
|
"""Models module can be loaded from an app in an egg"""
|
|
egg_name = '%s/modelapp.egg' % self.egg_dir
|
|
with extend_sys_path(egg_name):
|
|
with self.settings(INSTALLED_APPS=['app_with_models']):
|
|
models_module = apps.get_app_config('app_with_models').models_module
|
|
self.assertIsNotNone(models_module)
|
|
del apps.all_models['app_with_models']
|
|
|
|
def test_egg2(self):
|
|
"""Loading an app from an egg that has no models returns no models (and no error)"""
|
|
egg_name = '%s/nomodelapp.egg' % self.egg_dir
|
|
with extend_sys_path(egg_name):
|
|
with self.settings(INSTALLED_APPS=['app_no_models']):
|
|
models_module = apps.get_app_config('app_no_models').models_module
|
|
self.assertIsNone(models_module)
|
|
del apps.all_models['app_no_models']
|
|
|
|
def test_egg3(self):
|
|
"""Models module can be loaded from an app located under an egg's top-level package"""
|
|
egg_name = '%s/omelet.egg' % self.egg_dir
|
|
with extend_sys_path(egg_name):
|
|
with self.settings(INSTALLED_APPS=['omelet.app_with_models']):
|
|
models_module = apps.get_app_config('app_with_models').models_module
|
|
self.assertIsNotNone(models_module)
|
|
del apps.all_models['app_with_models']
|
|
|
|
def test_egg4(self):
|
|
"""Loading an app with no models from under the top-level egg package generates no error"""
|
|
egg_name = '%s/omelet.egg' % self.egg_dir
|
|
with extend_sys_path(egg_name):
|
|
with self.settings(INSTALLED_APPS=['omelet.app_no_models']):
|
|
models_module = apps.get_app_config('app_no_models').models_module
|
|
self.assertIsNone(models_module)
|
|
del apps.all_models['app_no_models']
|
|
|
|
def test_egg5(self):
|
|
"""Loading an app from an egg that has an import error in its models module raises that error"""
|
|
egg_name = '%s/brokenapp.egg' % self.egg_dir
|
|
with extend_sys_path(egg_name):
|
|
with six.assertRaisesRegex(self, ImportError, 'modelz'):
|
|
with self.settings(INSTALLED_APPS=['broken_app']):
|
|
pass
|
|
|
|
|
|
class GetModelsTest(TestCase):
|
|
def setUp(self):
|
|
from .not_installed import models
|
|
self.not_installed_module = models
|
|
|
|
def test_get_model_only_returns_installed_models(self):
|
|
with self.assertRaises(LookupError):
|
|
apps.get_model("not_installed", "NotInstalledModel")
|
|
|
|
def test_get_models_only_returns_installed_models(self):
|
|
self.assertNotIn(
|
|
"NotInstalledModel",
|
|
[m.__name__ for m in apps.get_models()])
|
|
|
|
def test_exception_raised_if_model_declared_outside_app(self):
|
|
|
|
class FakeModule(models.Model):
|
|
__name__ = str("models_that_do_not_live_in_an_app")
|
|
|
|
sys.modules['models_not_in_app'] = FakeModule
|
|
|
|
def declare_model_outside_app():
|
|
models.base.ModelBase.__new__(
|
|
models.base.ModelBase,
|
|
str('Outsider'),
|
|
(models.Model,),
|
|
{'__module__': 'models_not_in_app'})
|
|
|
|
msg = (
|
|
'Unable to detect the app label for model "Outsider." '
|
|
'Ensure that its module, "models_that_do_not_live_in_an_app", '
|
|
'is located inside an installed app.'
|
|
)
|
|
with warnings.catch_warnings():
|
|
warnings.filterwarnings('ignore', category=RemovedInDjango19Warning)
|
|
with self.assertRaisesMessage(ImproperlyConfigured, msg):
|
|
declare_model_outside_app()
|