diff --git a/test/unittest_analyze.py b/test/unittest_analyze.py
index 355006b88d3a28eb13cb5c8e8a8911126e8f1bfd_dGVzdC91bml0dGVzdF9hbmFseXplLnB5..46ea8a04429ce7bf7685f4cb98a7d6dc1d6211f8_dGVzdC91bml0dGVzdF9hbmFseXplLnB5 100644
--- a/test/unittest_analyze.py
+++ b/test/unittest_analyze.py
@@ -1,7 +1,6 @@
 from logilab.common.testlib import TestCase, unittest_main
 
 from rql import RQLHelper, TypeResolverException
-from rql.analyze import UnifyingETypeResolver, ETypeResolver
 
 FINAL_ETYPES = ('String', 'Boolean', 'Int', 'Float', 'Date', 'Datetime')
 
@@ -5,7 +4,7 @@
 
 FINAL_ETYPES = ('String', 'Boolean', 'Int', 'Float', 'Date', 'Datetime')
 
-class ERSchema:
+class ERSchema(object):
 
     def __cmp__(self, other):
         other = getattr(other, 'type', other)
@@ -49,32 +48,28 @@
     def is_final(self):
         return self.type in FINAL_ETYPES
     
-class DummySchema:
-    _types = {}
-    for type in ['String', 'Boolean', 'Int', 'Float', 'Date',
-                 'Eetype', 'Person', 'Company', 'Address']:
-        _types[type] = EntitySchema(type)
-        
-    _relations = {
-        'eid' : RelationSchema( ( ('Person', ('Int',) ),
-                                  ('Company', ('Int',) ),
-                                  ('Address', ('Int',) ),
-                                  ('Eetype', ('Int',) ),
-                                  )
-                                ),
-        'creation_date' : RelationSchema( ( ('Person', ('Datetime',) ),
-                                            ('Company', ('Datetime',) ),
-                                            ('Address', ('Datetime',) ),
-                                            ('Eetype', ('Datetime',) ),
-                                            )
-                                ),
-        'name' : RelationSchema( ( ('Person', ('String',) ),
-                                  ('Company', ('String',) ),
-                                  )
-                                ),
-        'firstname' : RelationSchema( ( ('Person', ('String',) ),
-                                       )
-                                ),
-        'work_for' : RelationSchema( ( ('Person', ('Company',) ),
+class DummySchema(object):
+
+    def __init__(self):
+        self._types = {}
+        for etype in ['String', 'Boolean', 'Int', 'Float', 'Date',
+                     'Eetype', 'Person', 'Company', 'Address']:
+            self._types[etype] = EntitySchema(etype)
+
+        self._relations = {
+            'eid' : RelationSchema( ( ('Person', ('Int',) ),
+                                      ('Company', ('Int',) ),
+                                      ('Address', ('Int',) ),
+                                      ('Eetype', ('Int',) ),
+                                      )
+                                    ),
+            'creation_date' : RelationSchema( ( ('Person', ('Datetime',) ),
+                                                ('Company', ('Datetime',) ),
+                                                ('Address', ('Datetime',) ),
+                                                ('Eetype', ('Datetime',) ),
+                                                )
+                                    ),
+            'name' : RelationSchema( ( ('Person', ('String',) ),
+                                      ('Company', ('String',) ),
                                       )
                                     ),
@@ -79,14 +74,13 @@
                                       )
                                     ),
-        'is' : RelationSchema( ( ('Person', ('Eetype',) ),
-                                 ('Company', ('Eetype',) ),
-                                 ('Address', ('Eetype',) ),
-                                 )
-                               ),
-        'connait' : RelationSchema( (('Person', ('Person',) ),
-                                     ),
-                                    symetric=True),
-        'located' : RelationSchema( ( ('Person', ('Address',) ),
-                                     ('Company', ('Address',) ),
+            'firstname' : RelationSchema( ( ('Person', ('String',) ),
+                                           )
+                                    ),
+            'work_for' : RelationSchema( ( ('Person', ('Company',) ),
+                                          )
+                                        ),
+            'is' : RelationSchema( ( ('Person', ('Eetype',) ),
+                                     ('Company', ('Eetype',) ),
+                                     ('Address', ('Eetype',) ),
                                      )
                                    ),
@@ -91,17 +85,25 @@
                                      )
                                    ),
-        'owned_by' : RelationSchema( ( ('Person', ('Person',) ),
-                                       ('Company', ('Person',) ),
-                                       ('Eetype', ('Person',) ),
-                                       )
-                                     ),
-        'identity' : RelationSchema( ( ('Person', ('Person',) ),
-                                       ('Company', ('Company',) ),
-                                       ('Address', ('Address',) ),
-                                       ('Eetype', ('Eetype',) ),
-                                  )
-                                ),
-        }
+            'connait' : RelationSchema( (('Person', ('Person',) ),
+                                         ),
+                                        symetric=True),
+            'located' : RelationSchema( ( ('Person', ('Address',) ),
+                                         ('Company', ('Address',) ),
+                                         )
+                                       ),
+            'owned_by' : RelationSchema( ( ('Person', ('Person',) ),
+                                           ('Company', ('Person',) ),
+                                           ('Eetype', ('Person',) ),
+                                           )
+                                         ),
+            'identity' : RelationSchema( ( ('Person', ('Person',) ),
+                                           ('Company', ('Company',) ),
+                                           ('Address', ('Address',) ),
+                                           ('Eetype', ('Eetype',) ),
+                                      )
+                                    ),
+            }
+        
     def entities(self):
         return self._types.values()
         
diff --git a/test/unittest_compare.py b/test/unittest_compare.py
index 355006b88d3a28eb13cb5c8e8a8911126e8f1bfd_dGVzdC91bml0dGVzdF9jb21wYXJlLnB5..46ea8a04429ce7bf7685f4cb98a7d6dc1d6211f8_dGVzdC91bml0dGVzdF9jb21wYXJlLnB5 100644
--- a/test/unittest_compare.py
+++ b/test/unittest_compare.py
@@ -4,8 +4,4 @@
 from unittest_analyze import RelationSchema, EntitySchema, DummySchema as BaseSchema
 
 class DummySchema(BaseSchema):
-    _types = BaseSchema._types
-    
-    for type in ['Note',]:
-        _types[type] = EntitySchema(type)
 
@@ -11,15 +7,16 @@
 
-    _relations = BaseSchema._relations
-    
-    _relations['a_faire_par'] = RelationSchema( ( ('Note', ('Person',)),
-                                                  )
-                                                )
-    _relations['creation_date'] = RelationSchema( ( ('Note', ('Date',)),
-                                                  )
-                                                )
-    _relations['nom'] = _relations['name']
-    _relations['prenom'] = _relations['firstname']
-    
+    def __init__(self):
+        super(DummySchema, self).__init__()
+        for etype in ['Note',]:
+            self._types[etype] = EntitySchema(etype)
+        relations = [('a_faire_par', (('Note', ('Person',)),)),
+                     ('creation_date', (('Note', ('Date',)),)),
+                     ]
+        for rel_name, rel_ent in relations:
+            self._relations[rel_name] = RelationSchema(rel_ent)
+        self._relations['nom'] = self._relations['name']
+        self._relations['prenom'] = self._relations['firstname']
+
 class RQLCompareClassTest(TestCase):
     """ Compare RQL strings """