| from django import db |
| from django.conf import settings |
| from django.contrib.contenttypes.models import ContentType |
| from django.contrib.sites.models import Site |
| from django.contrib.contenttypes.views import shortcut |
| from django.core.exceptions import ObjectDoesNotExist |
| from django.http import HttpRequest |
| from django.test import TestCase |
| |
| |
| class ContentTypesTests(TestCase): |
| |
| def setUp(self): |
| # First, let's make sure we're dealing with a blank slate (and that |
| # DEBUG is on so that queries get logged) |
| self.old_DEBUG = settings.DEBUG |
| self.old_Site_meta_installed = Site._meta.installed |
| settings.DEBUG = True |
| ContentType.objects.clear_cache() |
| db.reset_queries() |
| |
| def tearDown(self): |
| settings.DEBUG = self.old_DEBUG |
| Site._meta.installed = self.old_Site_meta_installed |
| |
| def test_lookup_cache(self): |
| """ |
| Make sure that the content type cache (see ContentTypeManager) |
| works correctly. Lookups for a particular content type -- by model or |
| by ID -- should hit the database only on the first lookup. |
| """ |
| |
| # At this point, a lookup for a ContentType should hit the DB |
| ContentType.objects.get_for_model(ContentType) |
| self.assertEqual(1, len(db.connection.queries)) |
| |
| # A second hit, though, won't hit the DB, nor will a lookup by ID |
| ct = ContentType.objects.get_for_model(ContentType) |
| self.assertEqual(1, len(db.connection.queries)) |
| ContentType.objects.get_for_id(ct.id) |
| self.assertEqual(1, len(db.connection.queries)) |
| |
| # Once we clear the cache, another lookup will again hit the DB |
| ContentType.objects.clear_cache() |
| ContentType.objects.get_for_model(ContentType) |
| len(db.connection.queries) |
| self.assertEqual(2, len(db.connection.queries)) |
| |
| def test_shortcut_view(self): |
| """ |
| Check that the shortcut view (used for the admin "view on site" |
| functionality) returns a complete URL regardless of whether the sites |
| framework is installed |
| """ |
| |
| request = HttpRequest() |
| request.META = { |
| "SERVER_NAME": "Example.com", |
| "SERVER_PORT": "80", |
| } |
| from django.contrib.auth.models import User |
| user_ct = ContentType.objects.get_for_model(User) |
| obj = User.objects.create(username="john") |
| Site._meta.installed = True |
| response = shortcut(request, user_ct.id, obj.id) |
| self.assertEqual("http://example.com/users/john/", response._headers.get("location")[1]) |
| Site._meta.installed = False |
| response = shortcut(request, user_ct.id, obj.id) |
| self.assertEqual("http://Example.com/users/john/", response._headers.get("location")[1]) |
