[CMF-checkins] CVS: Products/CMFCore/tests - test_DirectoryView.py:1.23

[Jens Vagelpohl]

Update of /cvs-repository/Products/CMFCore/tests
In directory cvs.zope.org:/tmp/cvs-serv11745/CMFCore/tests

Modified Files:
	test_DirectoryView.py 
Log Message:
- CMFCore.DirectoryView: A special __setattr__ on the
  DirectoryViewSurrogate class made sure to write changes through to the
  underlying DirectoryView, but there was no equivalent __delattr__
  cleanup. (http://www.zope.org/Collectors/CMF/316)


=== Products/CMFCore/tests/test_DirectoryView.py 1.22 => 1.23 ===
--- Products/CMFCore/tests/test_DirectoryView.py:1.22	Sun Mar  6 07:29:03 2005
+++ Products/CMFCore/tests/test_DirectoryView.py	Mon Mar  7 18:03:04 2005
@@ -158,6 +158,30 @@
         # Test that the .test1.py is ignored
         assert('#test1' not in self.ob.fake_skin.objectIds())
 
+    def test_surrogate_writethrough(self):
+        # CMF Collector 316: It is possible to cause ZODB writes because
+        # setting attributes on the non-persistent surrogate writes them 
+        # into the persistent DirectoryView as well. This is bad in situations
+        # where you only want to store markers and remove them before the
+        # transaction has ended - they never got removed because there was
+        # no equivalent __delattr__ on the surrogate that would clean up
+        # the persistent DirectoryView as well.
+        fs = self.ob.fake_skin
+        test_foo = 'My Foovalue'
+        fs.foo = test_foo
+
+        self.assertEqual(fs.foo, test_foo)
+        self.assertEqual(fs.__dict__['_real'].foo, test_foo)
+
+        del fs.foo
+
+        self.assertRaises(AttributeError, getattr, fs, 'foo')
+        self.assertRaises( AttributeError
+                         , getattr
+                         , fs.__dict__['_real']
+                         , 'foo'
+                         )
+
 
 class DirectoryViewFolderTests(FSDVTest):