Fixed unit test under Python 2.5

Author: Daniele Esposti

tests/patterns/facade.py

@@ -191,4 +191,5 @@ def testGetInstance(self):
         class MyFacade(Facade):
             pass
 
-        self.assertIsInstance(MyFacade.getInstance("myFacade"), MyFacade)
+        # Use 'assertTrue' for Python 2.5 compatibility
+        self.assertTrue(isinstance(MyFacade.getInstance("myFacade"), MyFacade))

tests/patterns/observer.py

@@ -110,12 +110,12 @@ def testSendNotificationNoBodyAndType(self):
         """NotifierTest: send notification without body and type"""
         try:
             self.notifier.sendNotification("TestNotification")
-        except Exception as e:
+        except Exception, e:  # Old-style 'except' for Python 2.5 compatibility
             self.fail(e)
 
     def testSendNotificationNoType(self):
         """NotifierTest: send notification without type"""
         try:
             self.notifier.sendNotification("TestNotification", 1)
-        except Exception as e:
+        except Exception, e:  # Old-style 'except' for Python 2.5 compatibility
             self.fail(e)