test(common): cover diff cli_utils path normalization

Co-authored-by: PuritanWizard <th3w1zard1@users.noreply.github.com>

Author: cursoragent

Libraries/PyKotor/tests/common/test_diff_cli_utils.py

@@ -0,0 +1,31 @@
+"""Regression tests for diff_tool.cli_utils path normalization."""
+
+from __future__ import annotations
+
+import pytest
+
+from pykotor.diff_tool.cli_utils import normalize_path_arg
+
+
+@pytest.mark.parametrize(
+    ("raw", "expected"),
+    [
+        (None, None),
+        ("", None),
+        ("   ", None),
+        ("/tmp/kotor", "/tmp/kotor"),
+        ('"/tmp/kotor"', "/tmp/kotor"),
+        ("'/tmp/kotor'", "/tmp/kotor"),
+        (r'C:\Games\KOTOR\ ', r"C:\Games\KOTOR"),
+        (r'C:\Games\KOTOR\" C:\Other', r"C:\Games\KOTOR"),
+    ],
+)
+def test_normalize_path_arg_strips_quotes_and_whitespace(
+    raw: str | None,
+    expected: str | None,
+) -> None:
+    assert normalize_path_arg(raw) == expected
+
+
+def test_normalize_path_arg_removes_embedded_quotes() -> None:
+    assert normalize_path_arg('C:\\"Games\\"KOTOR') == r"C:\Games\KOTOR"