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133 lines
4.5 KiB
Python
133 lines
4.5 KiB
Python
from __future__ import absolute_import, unicode_literals
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from django.apps import apps
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from django.apps.registry import Apps
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from django.conf import settings
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from django.db import models
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from django.test import TestCase, override_settings
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from .models import TotallyNormal, SoAlternative, new_apps
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# Small list with a variety of cases for tests that iterate on installed apps.
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# Intentionally not in alphabetical order to check if the order is preserved.
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SOME_INSTALLED_APPS = [
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'apps.apps.MyAdmin',
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'apps.apps.MyAuth',
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'django.contrib.contenttypes',
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'django.contrib.sessions',
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'django.contrib.messages',
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'django.contrib.staticfiles',
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]
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SOME_INSTALLED_APPS_NAMES = [
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'django.contrib.admin',
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'django.contrib.auth',
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] + SOME_INSTALLED_APPS[2:]
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SOME_INSTALLED_APPS_WTH_MODELS_NAMES = SOME_INSTALLED_APPS_NAMES[:4]
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class AppsTests(TestCase):
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def test_singleton_master(self):
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"""
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Ensures that only one master registry can exist.
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"""
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with self.assertRaises(RuntimeError):
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Apps(master=True)
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def test_ready(self):
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"""
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Tests the ready property of the master registry.
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"""
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# The master app registry is always ready when the tests run.
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self.assertTrue(apps.ready)
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def test_non_master_ready(self):
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"""
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Tests the ready property of a registry other than the master.
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"""
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apps = Apps()
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# Currently, non-master app registries are artificially considered
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# ready regardless of whether populate_models() has run.
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self.assertTrue(apps.ready)
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@override_settings(INSTALLED_APPS=SOME_INSTALLED_APPS)
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def test_get_app_configs(self):
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"""
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Tests get_app_configs().
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"""
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app_configs = apps.get_app_configs()
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self.assertListEqual(
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[app_config.name for app_config in app_configs],
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SOME_INSTALLED_APPS_NAMES)
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@override_settings(INSTALLED_APPS=SOME_INSTALLED_APPS)
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def test_get_app_configs_with_models(self):
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"""
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Tests get_app_configs(only_with_models_module=True).
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"""
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app_configs = apps.get_app_configs(only_with_models_module=True)
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self.assertListEqual(
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[app_config.name for app_config in app_configs],
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SOME_INSTALLED_APPS_WTH_MODELS_NAMES)
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@override_settings(INSTALLED_APPS=SOME_INSTALLED_APPS)
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def test_get_app_config(self):
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"""
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Tests get_app_config().
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"""
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app_config = apps.get_app_config('admin')
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self.assertEqual(app_config.name, 'django.contrib.admin')
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app_config = apps.get_app_config('staticfiles')
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self.assertEqual(app_config.name, 'django.contrib.staticfiles')
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with self.assertRaises(LookupError):
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apps.get_app_config('webdesign')
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@override_settings(INSTALLED_APPS=SOME_INSTALLED_APPS)
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def test_get_app_config_with_models(self):
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"""
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Tests get_app_config(only_with_models_module=True).
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"""
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app_config = apps.get_app_config('admin', only_with_models_module=True)
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self.assertEqual(app_config.name, 'django.contrib.admin')
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with self.assertRaises(LookupError):
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apps.get_app_config('staticfiles', only_with_models_module=True)
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def test_models_py(self):
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"""
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Tests that the models in the models.py file were loaded correctly.
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"""
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self.assertEqual(apps.get_model("apps", "TotallyNormal"), TotallyNormal)
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self.assertEqual(apps.get_model("apps", "SoAlternative"), None)
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self.assertEqual(new_apps.get_model("apps", "TotallyNormal"), None)
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self.assertEqual(new_apps.get_model("apps", "SoAlternative"), SoAlternative)
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def test_dynamic_load(self):
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"""
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Makes a new model at runtime and ensures it goes into the right place.
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"""
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old_models = apps.get_models(apps.get_app_config("apps").models_module)
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# Construct a new model in a new app registry
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body = {}
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new_apps = Apps()
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meta_contents = {
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'app_label': "apps",
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'apps': new_apps,
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}
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meta = type(str("Meta"), tuple(), meta_contents)
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body['Meta'] = meta
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body['__module__'] = TotallyNormal.__module__
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temp_model = type(str("SouthPonies"), (models.Model,), body)
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# Make sure it appeared in the right place!
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self.assertEqual(
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old_models,
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apps.get_models(apps.get_app_config("apps").models_module),
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)
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self.assertEqual(new_apps.get_model("apps", "SouthPonies"), temp_model)
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