diff --git a/lib/erl/test/test_const.erl b/lib/erl/test/test_const.erl
new file mode 100644
index 0000000..ed0cf03
--- /dev/null
+++ b/lib/erl/test/test_const.erl
@@ -0,0 +1,34 @@
+%%
+%% Licensed to the Apache Software Foundation (ASF) under one
+%% or more contributor license agreements. See the NOTICE file
+%% distributed with this work for additional information
+%% regarding copyright ownership. The ASF licenses this file
+%% to you under the Apache License, Version 2.0 (the
+%% "License"); you may not use this file except in compliance
+%% with the License. You may obtain a copy of the License at
+%%
+%%   http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing,
+%% software distributed under the License is distributed on an
+%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+%% KIND, either express or implied. See the License for the
+%% specific language governing permissions and limitations
+%% under the License.
+%%
+
+-module(test_const).
+
+-ifdef(TEST).
+-include_lib("eunit/include/eunit.hrl").
+
+-include("gen-erl/constants_demo_types.hrl").
+
+namespace_test() ->
+  %% Verify that records produced by ConstantsDemo.thrift have the right namespace.
+  io:format(user, "in namespace_test()\n", []),
+  {struct, _} = constants_demo_types:struct_info('consts_thing'),
+  {struct, _} = constants_demo_types:struct_info('consts_Blah'),
+  ok.
+
+-endif. %% TEST