Fix blob filter path shorter than filter path

1 files changed, 31 insertions, 0 deletions

diff --git a/test/test_blob_filter.py b/test/test_blob_filter.py
new file mode 100644
index 00000000..a8cd0c9c
--- /dev/null
+++ b/test/test_blob_filter.py
@@ -0,0 +1,31 @@
+"""Test the blob filter."""
+from pathlib import Path
+from typing import Sequence, Tuple
+from unittest.mock import MagicMock
+
+import pytest
+
+from git.index.typ import BlobFilter, StageType
+from git.objects import Blob
+from git.types import PathLike
+
+
+# fmt: off
+@pytest.mark.parametrize('paths, stage_type, path, expected_result', [
+    ((Path("foo"),), 0, Path("foo"), True),
+    ((Path("foo"),), 0, Path("foo/bar"), True),
+    ((Path("foo/bar"),), 0, Path("foo"), False),
+    ((Path("foo"), Path("bar")), 0, Path("foo"), True),
+])
+# fmt: on
+def test_blob_filter(paths: Sequence[PathLike], stage_type: StageType, path: PathLike, expected_result: bool) -> None:
+    """Test the blob filter."""
+    blob_filter = BlobFilter(paths)
+
+    binsha = MagicMock(__len__=lambda self: 20)
+    blob: Blob = Blob(repo=MagicMock(), binsha=binsha, path=path)
+    stage_blob: Tuple[StageType, Blob] = (stage_type, blob)
+
+    result = blob_filter(stage_blob)
+
+    assert result == expected_result