SVN: ZODB/trunk/src/BTrees/ Added the value class attribute to BTrees.Length.Length.

Log message for revision 108750:
  Added the value class attribute to BTrees.Length.Length.
  
  Fixes https://bugs.launchpad.net/zodb/+bug/516653 .
  

Changed:
  U   ZODB/trunk/src/BTrees/Length.py
  U   ZODB/trunk/src/BTrees/tests/testLength.py

-=-
Modified: ZODB/trunk/src/BTrees/Length.py
===================================================================
--- ZODB/trunk/src/BTrees/Length.py	2010-02-04 11:08:55 UTC (rev 108749)
+++ ZODB/trunk/src/BTrees/Length.py	2010-02-04 12:04:26 UTC (rev 108750)
@@ -30,6 +30,7 @@
     instance-defined slot fillers are ignored.
 
     """
+    value = 0
 
     def __init__(self, v=0):
         self.value = v

Modified: ZODB/trunk/src/BTrees/tests/testLength.py
===================================================================
--- ZODB/trunk/src/BTrees/tests/testLength.py	2010-02-04 11:08:55 UTC (rev 108749)
+++ ZODB/trunk/src/BTrees/tests/testLength.py	2010-02-04 12:04:26 UTC (rev 108750)
@@ -18,6 +18,7 @@
 __docformat__ = "reStructuredText"
 
 import BTrees.Length
+import copy
 import sys
 import unittest
 
@@ -40,7 +41,13 @@
         length.change(-1)
         self.assertEqual(length(), minint - 1)
         self.assert_(type(length()) is long)
-        
 
+    def test_copy(self):
+        # Test for https://bugs.launchpad.net/zodb/+bug/516653
+        length = BTrees.Length.Length()
+        other = copy.copy(length)
+        self.assertEqual(other(), 0)
+
+
 def test_suite():
     return unittest.makeSuite(LengthTestCase)