mirror of https://github.com/django/django.git
126 lines
4.6 KiB
Python
126 lines
4.6 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import os
|
|
import sys
|
|
from unittest import TestCase
|
|
|
|
from django.apps import app_cache
|
|
from django.apps.cache import AppCache
|
|
from django.test.utils import override_settings
|
|
from django.utils._os import upath
|
|
|
|
|
|
class EggLoadingTest(TestCase):
|
|
|
|
def setUp(self):
|
|
self.old_path = sys.path[:]
|
|
self.egg_dir = '%s/eggs' % os.path.dirname(upath(__file__))
|
|
|
|
# The models need to be removed after the test in order to prevent bad
|
|
# interactions with the flush operation in other tests.
|
|
self._old_models = app_cache.app_configs['app_loading'].models.copy()
|
|
|
|
def tearDown(self):
|
|
app_cache.app_configs['app_loading'].models = self._old_models
|
|
app_cache._get_models_cache = {}
|
|
|
|
sys.path = self.old_path
|
|
|
|
def test_egg1(self):
|
|
"""Models module can be loaded from an app in an egg"""
|
|
egg_name = '%s/modelapp.egg' % self.egg_dir
|
|
sys.path.append(egg_name)
|
|
models = app_cache.load_app('app_with_models')
|
|
self.assertFalse(models is None)
|
|
|
|
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
|
|
sys.path.append(egg_name)
|
|
models = app_cache.load_app('app_no_models')
|
|
self.assertTrue(models is None)
|
|
|
|
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
|
|
sys.path.append(egg_name)
|
|
models = app_cache.load_app('omelet.app_with_models')
|
|
self.assertFalse(models is None)
|
|
|
|
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
|
|
sys.path.append(egg_name)
|
|
models = app_cache.load_app('omelet.app_no_models')
|
|
self.assertTrue(models is None)
|
|
|
|
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
|
|
sys.path.append(egg_name)
|
|
self.assertRaises(ImportError, app_cache.load_app, 'broken_app')
|
|
raised = None
|
|
try:
|
|
app_cache.load_app('broken_app')
|
|
except ImportError as e:
|
|
raised = e
|
|
|
|
# Make sure the message is indicating the actual
|
|
# problem in the broken app.
|
|
self.assertTrue(raised is not None)
|
|
self.assertTrue("modelz" in raised.args[0])
|
|
|
|
def test_missing_app(self):
|
|
"""
|
|
Test that repeated app loading doesn't succeed in case there is an
|
|
error. Refs #17667.
|
|
"""
|
|
# AppCache is a Borg, so we can instantiate one and change its
|
|
# loaded to False to force the following code to actually try to
|
|
# populate the cache.
|
|
a = AppCache()
|
|
a.loaded = False
|
|
try:
|
|
with override_settings(INSTALLED_APPS=('notexists',)):
|
|
self.assertRaises(ImportError, app_cache.get_model, 'notexists', 'nomodel', seed_cache=True)
|
|
self.assertRaises(ImportError, app_cache.get_model, 'notexists', 'nomodel', seed_cache=True)
|
|
finally:
|
|
a.loaded = True
|
|
|
|
|
|
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):
|
|
self.assertEqual(
|
|
app_cache.get_model("not_installed", "NotInstalledModel"), None)
|
|
|
|
def test_get_model_with_not_installed(self):
|
|
self.assertEqual(
|
|
app_cache.get_model(
|
|
"not_installed", "NotInstalledModel", only_installed=False),
|
|
self.not_installed_module.NotInstalledModel)
|
|
|
|
def test_get_models_only_returns_installed_models(self):
|
|
self.assertFalse(
|
|
"NotInstalledModel" in
|
|
[m.__name__ for m in app_cache.get_models()])
|
|
|
|
def test_get_models_with_app_label_only_returns_installed_models(self):
|
|
self.assertEqual(app_cache.get_models(self.not_installed_module), [])
|
|
|
|
def test_get_models_with_not_installed(self):
|
|
self.assertTrue(
|
|
"NotInstalledModel" in [
|
|
m.__name__ for m in app_cache.get_models(only_installed=False)])
|
|
|
|
|
|
class NotInstalledModelsTest(TestCase):
|
|
def test_related_not_installed_model(self):
|
|
from .not_installed.models import NotInstalledModel
|
|
self.assertEqual(
|
|
set(NotInstalledModel._meta.get_all_field_names()),
|
|
set(["id", "relatedmodel", "m2mrelatedmodel"]))
|