Zope4

CHANGES.rst

@@ -10,7 +10,8 @@ New:
 
 Fixes:
 
-- *add item here*
+- Add temporary fix for a test failure within a Zope 4 environment.
+  [pbauer]
 
 
 1.2.6 (2014-10-20)

plone/supermodel/model.py

@@ -84,9 +84,23 @@ def finalizeSchemas(parent=Schema):
 
     def walk(schema):
         yield schema
-        for child in schema.dependents.keys():
-            for s in walk(child):
-                yield s
+        if getattr(schema, 'dependents', None) is None:
+            # This is just a temporary fix for a issue when running Plone-tests
+            # with zope4 (http://jenkins.plone.org/view/PLIPs/job/plip-zope4/).
+            # InterfaceClass
+            # plone.dexterity.schema.generated.plone_0_LockableType
+            # has zope.interface.adapter.VerifyingAdapterLookup as a
+            # dependent which again has no dependents.
+            # Maybe VerifyingAdapterLookup should not be here or it should have
+            # dependents (a weakref.WeakKeyDictionary())
+            # Maybe also related to the comment below which states that the
+            # first base class of a schema must be a SchemaClass.
+            logger.info(
+                'This should not happen: "%s" has no dependents!' % schema)
+        else:
+            for child in schema.dependents.keys():
+                for s in walk(child):
+                    yield s
     schemas = set(walk(parent))
     for schema in schemas:
         if hasattr(schema, '_SchemaClass_finalize'):