1 files changed, 6 insertions, 0 deletions

diff --git a/kronos/tests/test_cli.py b/kronos/tests/test_cli.py
index 54aef81..a826a7e 100644
--- a/kronos/tests/test_cli.py
+++ b/kronos/tests/test_cli.py
@@ -34,3 +34,9 @@ class TestParsingErrors(object):
     def test_should_exit_if_not_enough_args(self):
         ui = CommandLineUI([])
         assert_raises(SystemExit, ui.run)
+
+    def test_should_exit_if_invalid_controller(self):
+        args = ['kronos', 'ducks', 'my action@home', '#stuff', '#good']
+        ui = CommandLineUI(args)
+
+        assert_raises(SystemExit, ui.run)