diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/apps/tests.py | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/apps/tests.py b/tests/apps/tests.py index 513ed32039..1a308efb6a 100644 --- a/tests/apps/tests.py +++ b/tests/apps/tests.py @@ -3,6 +3,7 @@ from __future__ import unicode_literals import os import sys from unittest import skipUnless +import warnings from django.apps import apps, AppConfig from django.apps.registry import Apps @@ -208,6 +209,44 @@ class AppsTests(TestCase): apps.get_model("apps", "SouthPonies") self.assertEqual(new_apps.get_model("apps", "SouthPonies"), temp_model) + def test_model_clash(self): + """ + Test for behavior when two models clash in the app registry. + """ + new_apps = Apps(["apps"]) + meta_contents = { + 'app_label': "apps", + 'apps': new_apps, + } + + body = {} + body['Meta'] = type(str("Meta"), tuple(), meta_contents) + body['__module__'] = TotallyNormal.__module__ + type(str("SouthPonies"), (models.Model,), body) + + # When __name__ and __module__ match we assume the module + # was reloaded and issue a warning. This use-case is + # useful for REPL. Refs #23621. + body = {} + body['Meta'] = type(str("Meta"), tuple(), meta_contents) + body['__module__'] = TotallyNormal.__module__ + with warnings.catch_warnings(record=True) as w: + type(str("SouthPonies"), (models.Model,), body) + self.assertEqual(len(w), 1) + self.assertTrue(issubclass(w[-1].category, RuntimeWarning)) + self.assertEqual(str(w[-1].message), + "Model 'southponies.apps' was already registered. " + "Reloading models is not advised as it can lead to inconsistencies, " + "most notably with related models.") + + # If it doesn't appear to be a reloaded module then we expect + # a RuntimeError. + body = {} + body['Meta'] = type(str("Meta"), tuple(), meta_contents) + body['__module__'] = TotallyNormal.__module__ + '.whatever' + with six.assertRaisesRegex(self, RuntimeError, + "Conflicting 'southponies' models in application 'apps':.*"): + type(str("SouthPonies"), (models.Model,), body) class Stub(object): def __init__(self, **kwargs): |