diff --git a/lib/solaar/gtk.py b/lib/solaar/gtk.py
index c9ed6b0b..45357afa 100755
--- a/lib/solaar/gtk.py
+++ b/lib/solaar/gtk.py
@@ -54,7 +54,7 @@ tray_icon_size = None
 temp = tempfile.NamedTemporaryFile(prefix="Solaar_", mode="w", delete=True)
 
 
-def _parse_arguments():
+def create_parser():
     arg_parser = argparse.ArgumentParser(
         prog=NAME.lower(), epilog="For more information see https://pwr-solaar.github.io/Solaar"
     )
@@ -99,7 +99,11 @@ def _parse_arguments():
         choices=cli.actions,
         help="command-line action to perform (optional); append ' --help' to show args",
     )
+    return arg_parser
 
+
+def _parse_arguments():
+    arg_parser = create_parser()
     args = arg_parser.parse_args()
 
     if args.help_actions:
diff --git a/tests/solaar/test_gtk.py b/tests/solaar/test_gtk.py
new file mode 100644
index 00000000..60fea213
--- /dev/null
+++ b/tests/solaar/test_gtk.py
@@ -0,0 +1,27 @@
+from solaar.gtk import create_parser
+
+
+def test_arg_parse():
+    parser = create_parser()
+    res = parser.parse_args([])
+
+    assert res.debug == 0
+    assert res.hidraw_path is None
+    assert res.restart_on_wake_up is False
+    assert res.window is None
+    assert res.battery_icons is None
+    assert res.tray_icon_size is None
+
+
+def test_arg_parse_debug():
+    parser = create_parser()
+    res = parser.parse_args(["--debug"])
+
+    assert res.debug == 1
+
+
+def test_arg_parse_version():
+    parser = create_parser()
+    res = parser.parse_args(["version"])
+
+    assert res