Use new program when unittest

python/paddle/fluid/tests/unittests/test_recordio_reader.py

@@ -21,7 +21,7 @@ import paddle.v2 as paddle
 class TestRecordIO(unittest.TestCase):
     def setUp(self):
         # Convert mnist to recordio file
-        with fluid.program_guard(fluid.Program()):
+        with fluid.program_guard(fluid.Program(), fluid.Program()):
             reader = paddle.batch(mnist.train(), batch_size=32)
             feeder = fluid.DataFeeder(
                 feed_list=[  # order is image and label
@@ -35,6 +35,8 @@ class TestRecordIO(unittest.TestCase):
                 './mnist.recordio', reader, feeder)
 
     def test_main(self):
+        # use new program
+        with fluid.program_guard(fluid.Program(), fluid.Program()):
             data_file = fluid.layers.open_recordio_file(
                 './mnist.recordio',
                 shapes=[[-1, 784], [-1, 1]],