Add ProcessPoolAction, update CAP to look only at keywords correctly

tests/test_parsers/test_basics.py

@@ -0,0 +1,49 @@
+import pytest
+
+from falyx.exceptions import CommandArgumentError
+from falyx.parsers import CommandArgumentParser
+
+
+def test_str():
+    """Test the string representation of CommandArgumentParser."""
+    parser = CommandArgumentParser()
+    assert (
+        str(parser)
+        == "CommandArgumentParser(args=1, flags=2, keywords=2, positional=0, required=0)"
+    )
+
+    parser.add_argument("test", action="store", help="Test argument")
+    assert (
+        str(parser)
+        == "CommandArgumentParser(args=2, flags=3, keywords=2, positional=1, required=1)"
+    )
+
+    parser.add_argument("-o", "--optional", action="store", help="Optional argument")
+    assert (
+        str(parser)
+        == "CommandArgumentParser(args=3, flags=5, keywords=4, positional=1, required=1)"
+    )
+
+    parser.add_argument("--flag", action="store", help="Flag argument", required=True)
+    assert (
+        str(parser)
+        == "CommandArgumentParser(args=4, flags=6, keywords=5, positional=1, required=2)"
+    )
+    assert (
+        repr(parser)
+        == "CommandArgumentParser(args=4, flags=6, keywords=5, positional=1, required=2)"
+    )
+
+
+@pytest.mark.asyncio
+async def test_positional_text_with_choices():
+    parser = CommandArgumentParser()
+    parser.add_argument("path", choices=["a", "b"])
+    args = await parser.parse_args(["a"])
+    assert args["path"] == "a"
+
+    with pytest.raises(CommandArgumentError):
+        await parser.parse_args(["c"])
+
+    with pytest.raises(CommandArgumentError):
+        await parser.parse_args([])