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82 lines
3.0 KiB
Python
82 lines
3.0 KiB
Python
import os
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from django.apps import apps
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from django.test import SimpleTestCase
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from django.test.utils import extend_sys_path
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class EggLoadingTest(SimpleTestCase):
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def setUp(self):
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self.egg_dir = "%s/eggs" % os.path.dirname(__file__)
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self.addCleanup(apps.clear_cache)
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def test_egg1(self):
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"""Models module can be loaded from an app in an egg"""
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egg_name = "%s/modelapp.egg" % self.egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=["app_with_models"]):
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models_module = apps.get_app_config("app_with_models").models_module
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self.assertIsNotNone(models_module)
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del apps.all_models["app_with_models"]
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def test_egg2(self):
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"""
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Loading an app from an egg that has no models returns no models (and no
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error).
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"""
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egg_name = "%s/nomodelapp.egg" % self.egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=["app_no_models"]):
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models_module = apps.get_app_config("app_no_models").models_module
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self.assertIsNone(models_module)
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del apps.all_models["app_no_models"]
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def test_egg3(self):
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"""
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Models module can be loaded from an app located under an egg's
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top-level package.
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"""
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egg_name = "%s/omelet.egg" % self.egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=["omelet.app_with_models"]):
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models_module = apps.get_app_config("app_with_models").models_module
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self.assertIsNotNone(models_module)
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del apps.all_models["app_with_models"]
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def test_egg4(self):
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"""
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Loading an app with no models from under the top-level egg package
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generates no error.
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"""
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egg_name = "%s/omelet.egg" % self.egg_dir
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with extend_sys_path(egg_name):
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with self.settings(INSTALLED_APPS=["omelet.app_no_models"]):
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models_module = apps.get_app_config("app_no_models").models_module
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self.assertIsNone(models_module)
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del apps.all_models["app_no_models"]
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def test_egg5(self):
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"""
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Loading an app from an egg that has an import error in its models
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module raises that error.
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"""
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egg_name = "%s/brokenapp.egg" % self.egg_dir
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with extend_sys_path(egg_name):
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with self.assertRaisesMessage(ImportError, "modelz"):
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with self.settings(INSTALLED_APPS=["broken_app"]):
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pass
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class GetModelsTest(SimpleTestCase):
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def setUp(self):
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from .not_installed import models
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self.not_installed_module = models
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def test_get_model_only_returns_installed_models(self):
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with self.assertRaises(LookupError):
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apps.get_model("not_installed", "NotInstalledModel")
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def test_get_models_only_returns_installed_models(self):
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self.assertNotIn("NotInstalledModel", [m.__name__ for m in apps.get_models()])
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