[Checkins] SVN: Zope3/trunk/src/zope/app/interface/ Fix interfaces that subclass interfaces in persistent modules

[Ross Patterson]

Log message for revision 72382:
  Fix interfaces that subclass interfaces in persistent modules
  
  When interfaces in a persistent module subclass other interfaces from
  a persistent module, they then become dependents of the subclassed
  interface.  As such the DependentsDict needs to convert such
  interfaces to thier persistent versions.
  
  I added InterfaceClass to the values handled by the DependentsDict and
  updated the tests.
  
  merged from branches/3.3 r72381
  

Changed:
  U   Zope3/trunk/src/zope/app/interface/__init__.py
  U   Zope3/trunk/src/zope/app/interface/tests/test_interface.py

-=-
Modified: Zope3/trunk/src/zope/app/interface/__init__.py
===================================================================
--- Zope3/trunk/src/zope/app/interface/__init__.py	2007-02-05 21:33:26 UTC (rev 72381)
+++ Zope3/trunk/src/zope/app/interface/__init__.py	2007-02-05 22:03:49 UTC (rev 72382)
@@ -110,6 +110,11 @@
 PersistentInterface = PersistentInterfaceClass("PersistentInterface",
                                                (Interface, ))
 
+
+def persistentInterface(iface):
+    return PersistentInterfaceClass(iface.__name__)
+persistentFactories[InterfaceClass] = persistentInterface
+
 class PersistentInterfaceWrapper(Wrapper):
 
     def unwrap(self):

Modified: Zope3/trunk/src/zope/app/interface/tests/test_interface.py
===================================================================
--- Zope3/trunk/src/zope/app/interface/tests/test_interface.py	2007-02-05 21:33:26 UTC (rev 72381)
+++ Zope3/trunk/src/zope/app/interface/tests/test_interface.py	2007-02-05 22:03:49 UTC (rev 72382)
@@ -46,10 +46,16 @@
 aFoo = Foo()
 """
 
+class IQuux(Interface): pass
+
 bar_code = """\
 from zope.interface import Interface
+from zope.app.interface.tests.test_interface import IQuux
+
 class IBar(Interface): pass
+class IBah(IQuux): pass
 class IBaz(Interface): pass
+class IBlah(IBaz): pass
 """
 
 class Bar(Persistent): pass
@@ -98,18 +104,36 @@
         
         self.registry.newModule("barmodule", bar_code)
         barmodule = self.registry.findModule("barmodule")
+
         bar = Bar()
         directlyProvides(bar, barmodule.IBar)
         self.root['bar'] = bar
         self.assertTrue(barmodule.IBar.providedBy(bar))
+
+        bah = Bar()
+        directlyProvides(bah, barmodule.IBah)
+        self.root['bah'] = bah
+        self.assertTrue(barmodule.IBah.providedBy(bah))
+
+        blah = Bar()
+        directlyProvides(blah, barmodule.IBlah)
+        self.root['blah'] = blah
+        self.assertTrue(barmodule.IBlah.providedBy(blah))
+
         transaction.commit()
         self.db.close()
-
         root = self.db.open().root()
         barmodule = root['registry'].findModule("barmodule")
+
         bar = root['bar']
         self.assertTrue(barmodule.IBar.providedBy(bar))
 
+        bah = root['bah']
+        self.assertTrue(barmodule.IBah.providedBy(bah))
+
+        blah = root['blah']
+        self.assertTrue(barmodule.IBlah.providedBy(blah))
+
     def test_persistentWeakref(self):
         """Verify interacton of declaration weak refs with ZODB