__findattr__ refactor

Lib/test/test_descr_jy.py

 """Test descriptors, binary ops, etc.
 
 Made for Jython.
 """
 import types
 import unittest
 from test import test_support
 
 class Old:
     pass
@@ skipping 54 matching lines @@
         except TypeError:
             pass
         else:
             self.assert_(False, "should have raised TypeError")
         try:
             foo = C(None)
         except TypeError:
             pass
         else:
             self.assert_(False, "should have raised TypeError")
+
+    def test_raising_custom_attribute_error(self):
+        class Desc(object):
+            def __get__(self, instance, type):
+                raise AttributeError("Custom message")
+        class Foo(object):
+            desc = Desc()
+        try:
+            Foo().desc
+            self.assert_(False) # Previous line should raise AttributteError
+        except AttributeError, e:
+            self.assertEquals("Custom message", str(e))
 
 class SubclassDescrTestCase(unittest.TestCase):
 
     def test_subclass_cmp_right_op(self):
         # Case 1: subclass of int
 
         class B(int):
             def __ge__(self, other):
                 return "B.__ge__"
             def __le__(self, other):
@@ skipping 210 matching lines @@
 
 
 def test_main():
     test_support.run_unittest(TestDescrTestCase,
                               SubclassDescrTestCase,
                               InPlaceTestCase,
                               DescrExceptionsTestCase)
 
 if __name__ == '__main__':
     test_main()