Added regression test for bug fixed in 24d4fd291054

theano/tensor/tests/test_elemwise.py

-
-import time
-import unittest
+import cPickle, time, unittest
 
 from theano.gof import Variable, Op
 from theano import gof
@@ -399,6 +397,14 @@ class test_Prod(unittest.TestCase):
 
         fn_debug(a)
 
+    def test_pickle_bug(self):
+        # Regression test for bug fixed in 24d4fd291054.
+        o = Prod()
+        s = cPickle.dumps(o)
+        o = cPickle.loads(s)
+        cPickle.dumps(o)
+
+
 if __name__ == '__main__':
     #unittest.main()
     suite = unittest.TestSuite([test_Prod('test_mul_without_zeros_zeros')])