diff --git a/tests/data/test_dataprovider.py b/tests/data/test_dataprovider.py
index 843d60786..49603feac 100644
--- a/tests/data/test_dataprovider.py
+++ b/tests/data/test_dataprovider.py
@@ -330,3 +330,8 @@ def test_dp_send_msg(default_conf):
     assert msg not in dp._msg_queue
     dp.send_msg(msg, always_send=True)
     assert msg in dp._msg_queue
+
+    default_conf["runmode"] = RunMode.BACKTEST
+    dp = DataProvider(default_conf, None)
+    dp.send_msg(msg, always_send=True)
+    assert msg not in dp._msg_queue