Added test coverage.

Author: kmvanbrunt

tests/test_argparse_custom.py

@@ -49,8 +49,8 @@ def test_text_group_direct_plain() -> None:
     assert "  Some text" in output
 
 
-def test_text_group_in_parser(capsys) -> None:
-    """Print a TextGroup using argparse."""
+def test_text_group_in_parser_cmd2(capsys) -> None:
+    """Print a TextGroup with argparse using a Cmd2RichArgparseConsole."""
     parser = Cmd2ArgumentParser(prog="test")
     parser.epilog = argparse_custom.TextGroup("Notes", "Some text")
 
@@ -62,6 +62,29 @@ def test_text_group_in_parser(capsys) -> None:
     assert "  Some text" in out
 
 
+def test_text_group_in_parser_plain(capsys) -> None:
+    """Print a TextGroup with argparse not using a Cmd2RichArgparseConsole."""
+
+    class CustomParser(Cmd2ArgumentParser):
+        from typing import Any
+
+        def _get_formatter(self, **kwargs: Any) -> Cmd2HelpFormatter:
+            """Overwrite the formatter's console with a plain one."""
+            formatter = super()._get_formatter(**kwargs)
+            formatter.console = Console()
+            return formatter
+
+    parser = CustomParser(prog="test")
+    parser.epilog = argparse_custom.TextGroup("Notes", "Some text")
+
+    # Render help
+    parser.print_help()
+    out, _ = capsys.readouterr()
+
+    assert "Notes:" in out
+    assert "  Some text" in out
+
+
 class ApCustomTestApp(cmd2.Cmd):
     """Test app for cmd2's argparse customization"""