diff --git a/test/tuner_test.py b/test/tuner_test.py
index 131fa3971f..139a3f4844 100644
--- a/test/tuner_test.py
+++ b/test/tuner_test.py
@@ -49,6 +49,10 @@ def switch(dispatch_type, dispatch_name):
                 'optimize_mode': 'maximize'
             }
         }
+    if dispatch_name == 'BatchTuner':
+        experiment_config['searchSpacePath'] = 'batchtuner_search_space.json'
+    else:
+        experiment_config['searchSpacePath'] = 'search_space.json'
     dump_yml_content(config_path, experiment_config)
 
 def test_builtin_dispatcher(dispatch_type, dispatch_name):
diff --git a/test/tuner_test/batchtuner_search_space.json b/test/tuner_test/batchtuner_search_space.json
new file mode 100644
index 0000000000..5d3beeee85
--- /dev/null
+++ b/test/tuner_test/batchtuner_search_space.json
@@ -0,0 +1,8 @@
+{
+    "combine_params":
+    {
+        "_type" : "choice",
+        "_value" : [{"x": 1},
+                    {"x": 100}]
+    }
+}