SF #1085304: Make array.array pickle-able

1 files changed, 19 insertions, 0 deletions

diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index b15298fbfe..c24b41b931 100755
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -7,6 +7,10 @@ import unittest
 from test import test_support
 from weakref import proxy
 import array, cStringIO, math
+from cPickle import loads, dumps
+
+class ArraySubclass(array.array):
+    pass
 
 tests = [] # list to accumulate all tests
 typecodes = "cubBhHiIlLfd"
@@ -81,6 +85,21 @@ class BaseTest(unittest.TestCase):
         self.assertNotEqual(id(a), id(b))
         self.assertEqual(a, b)
 
+    def test_pickle(self):
+        for protocol in (0, 1, 2):
+            a = array.array(self.typecode, self.example)
+            b = loads(dumps(a, protocol))
+            self.assertNotEqual(id(a), id(b))
+            self.assertEqual(a, b)
+
+            a = ArraySubclass(self.typecode, self.example)
+            a.x = 10
+            b = loads(dumps(a, protocol))
+            self.assertNotEqual(id(a), id(b))
+            self.assertEqual(a, b)
+            self.assertEqual(a.x, b.x)
+            self.assertEqual(type(a), type(b))
+
     def test_insert(self):
         a = array.array(self.typecode, self.example)
         a.insert(0, self.example[0])