diff --git a/tests/test_services.py b/tests/test_services.py
index 1a3ada23..684266f2 100644
--- a/tests/test_services.py
+++ b/tests/test_services.py
@@ -275,3 +275,18 @@ class MyPartialListener(r.ServiceListener):
         )
 
     zc.close()
+
+
+def test_signal_registration_interface():
+    """Test adding and removing from the SignalRegistrationInterface."""
+
+    interface = r.SignalRegistrationInterface([])
+
+    def dummy():
+        pass
+
+    interface.register_handler(dummy)
+    interface.unregister_handler(dummy)
+
+    with pytest.raises(ValueError):
+        interface.unregister_handler(dummy)