Merge pull request #1123 from mulkieran/test-all-help-text

Print help text for every command

tests/whitebox/integration/test_help_text.py

@@ -0,0 +1,53 @@
+# Copyright 2025 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Test that printing out help text does not result in any error returns or
+exceptions.
+"""
+
+# isort: STDLIB
+from argparse import _SubParsersAction
+
+# isort: LOCAL
+from stratis_cli._parser import gen_parser
+
+from ._misc import RunTestCase
+
+
+def gen_subcommands(parser, command_line):
+    """
+    Recursively traverse the parser, yielding all possible subcommands.
+    """
+    yield command_line
+    for action in (
+        action
+        for action in parser._actions  # pylint: disable=protected-access
+        if isinstance(action, _SubParsersAction)
+    ):
+        for name, subparser in action.choices.items():
+            yield from gen_subcommands(subparser, command_line + [name])
+
+
+class ParserHelpTestCase(RunTestCase):
+    """
+    Test various timeout inputs.
+    """
+
+    def test_help(self):
+        """
+        Test all parser help.
+        """
+
+        for command_line in gen_subcommands(gen_parser(), []):
+            self.check_system_exit(command_line + ["--help"], 0)