diff -r 1e0235478403 -r 31a1813d53f3 web/test/unittest_urlpublisher.py
--- a/web/test/unittest_urlpublisher.py	Thu Dec 12 12:28:43 2013 +0100
+++ b/web/test/unittest_urlpublisher.py	Thu Dec 12 12:34:38 2013 +0100
@@ -62,42 +62,42 @@
         self.assertEqual(ctrl, 'view')
         self.assertEqual(rset.description[0][0], 'CWEType')
         self.assertEqual(rset.printable_rql(),
-                          "Any X,AA,AB ORDERBY AA WHERE X is CWEType, X name AA, X modification_date AB")
+                          "Any X,AA,AB ORDERBY AA WHERE X is_instance_of CWEType, X name AA, X modification_date AB")
 
     def test_rest_path_by_attr(self):
         ctrl, rset = self.process('CWUser/login/admin')
         self.assertEqual(ctrl, 'view')
         self.assertEqual(len(rset), 1)
         self.assertEqual(rset.description[0][0], 'CWUser')
-        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "admin"')
+        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is_instance_of CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "admin"')
 
     def test_rest_path_unique_attr(self):
         ctrl, rset = self.process('cwuser/admin')
         self.assertEqual(ctrl, 'view')
         self.assertEqual(len(rset), 1)
         self.assertEqual(rset.description[0][0], 'CWUser')
-        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "admin"')
+        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is_instance_of CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "admin"')
 
     def test_rest_path_eid(self):
         ctrl, rset = self.process('cwuser/eid/%s' % self.user().eid)
         self.assertEqual(ctrl, 'view')
         self.assertEqual(len(rset), 1)
         self.assertEqual(rset.description[0][0], 'CWUser')
-        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X eid %s' % rset[0][0])
+        self.assertEqual(rset.printable_rql(), 'Any X,AA,AB,AC,AD WHERE X is_instance_of CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X eid %s' % rset[0][0])
 
     def test_rest_path_non_ascii_paths(self):
         ctrl, rset = self.process('CWUser/login/%C3%BFsa%C3%BFe')
         self.assertEqual(ctrl, 'view')
         self.assertEqual(len(rset), 1)
         self.assertEqual(rset.description[0][0], 'CWUser')
-        self.assertEqual(rset.printable_rql(), u'Any X,AA,AB,AC,AD WHERE X is CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "\xffsa\xffe"')
+        self.assertEqual(rset.printable_rql(), u'Any X,AA,AB,AC,AD WHERE X is_instance_of CWUser, X login AA, X firstname AB, X surname AC, X modification_date AD, X login "\xffsa\xffe"')
 
     def test_rest_path_quoted_paths(self):
         ctrl, rset = self.process('BlogEntry/title/hell%27o')
         self.assertEqual(ctrl, 'view')
         self.assertEqual(len(rset), 1)
         self.assertEqual(rset.description[0][0], 'BlogEntry')
-        self.assertEqual(rset.printable_rql(), u'Any X,AA,AB,AC WHERE X is BlogEntry, X creation_date AA, X title AB, X modification_date AC, X title "hell\'o"')
+        self.assertEqual(rset.printable_rql(), u'Any X,AA,AB,AC WHERE X is_instance_of BlogEntry, X creation_date AA, X title AB, X modification_date AC, X title "hell\'o"')
 
     def test_rest_path_errors(self):
         self.assertRaises(NotFound, self.process, 'CWUser/eid/30000')