Add test case for parser.print_help()

Author: nanomad

src/configuration/parser.py

@@ -23,7 +23,7 @@
 
 
 def process_command_line() -> Configuration:
-    parser = __setup_parser()
+    parser = setup_parser()
     try:
         args = parser.parse_args()
         config = Configuration()
@@ -155,7 +155,7 @@ def __setup_osmand(args: Namespace, config: Configuration) -> None:
         config.osmand_use_knots = args.osmand_use_knots
 
 
-def __setup_parser() -> argparse.ArgumentParser:
+def setup_parser() -> argparse.ArgumentParser:
     parser = argparse.ArgumentParser(prog="MQTT Gateway")
     parser.add_argument(
         "-m",

tests/test_parser.py

@@ -0,0 +1,7 @@
+from configuration.parser import setup_parser
+
+
+def test_setup_parser_should_generate_a_valid_parser() -> None:
+    parser = setup_parser()
+    parser.print_help()
+    assert True