def test_missing_app(self):
"""
Test that repeated app loading doesn't succeed in case there is an
error. Refs #17667.
"""
app_cache = AppCache()
# Pretend we're the master app cache to test populate().
app_cache.master = True
with override_settings(INSTALLED_APPS=('notexists',)):
with self.assertRaises(ImportError):
app_cache.get_model('notexists', 'nomodel', seed_cache=True)
with self.assertRaises(ImportError):
app_cache.get_model('notexists', 'nomodel', seed_cache=True)
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
def test_dynamic_load(self):
"""
Makes a new model at runtime and ensures it goes into the right place.
"""
old_models = app_cache.get_models(app_cache.get_app_config("app_cache").models_module)
# Construct a new model in a new app cache
body = {}
new_app_cache = AppCache()
meta_contents = {
'app_label': "app_cache",
'app_cache': new_app_cache,
}
meta = type("Meta", tuple(), meta_contents)
body['Meta'] = meta
body['__module__'] = TotallyNormal.__module__
temp_model = type("SouthPonies", (models.Model,), body)
# Make sure it appeared in the right place!
self.assertEqual(
old_models,
app_cache.get_models(app_cache.get_app_config("app_cache").models_module),
)
self.assertEqual(new_app_cache.get_model("app_cache", "SouthPonies"), temp_model)
