Final unit test for extract()

Signed-off-by: Bram Stoeller <bram.stoeller@alliander.com>

Author: bramstoeller

tests/unit/utils/test_zip_files.py

@@ -63,6 +63,16 @@ def test_extract__invalid_file_extension():
         extract(src_file_path=Path("/tmp/dir/tempfile.download"))
 
 
+def test_extract__invalid_dst_dir(temp_dir: Path):
+    # Arrange
+    with open(temp_dir / "notadir.txt", "wb"):
+        pass
+
+    # Act / Assert
+    with pytest.raises(NotADirectoryError, match=r"Destination dir .*notadir\.txt exists and is not a directory"):
+        extract(src_file_path=Path("file.zip"), dst_dir_path=temp_dir / "notadir.txt")
+
+
 @patch("power_grid_model_io.utils.download.tqdm")
 def test_extract__file_exists(mock_tqdm: MagicMock, temp_dir: Path):
     # Arrange