diff --git a/python/paddle/v2/fluid/tests/test_const_value.py b/python/paddle/v2/fluid/tests/test_const_value.py
index fd034f55e7b3d830dd297d893b4e99912432f615..f8c17c2c98674fa67458efa090e166e37f5a6a8a 100644
--- a/python/paddle/v2/fluid/tests/test_const_value.py
+++ b/python/paddle/v2/fluid/tests/test_const_value.py
@@ -5,6 +5,9 @@ import paddle.v2.fluid.framework as framework
 class ConditionalBlock(unittest.TestCase):
     def test_const_value(self):
         self.assertEqual(framework.GRAD_VAR_SUFFIX, "@GRAD")
+        self.assertEqual(framework.TEMP_VAR_NAME, "@TEMP@")
+        self.assertEqual(framework.GRAD_VAR_SUFFIX, "@GRAD")
+        self.assertEqual(framework.ZERO_VAR_SUFFIX, "@ZERO")
 
 
 if __name__ == '__main__':