diff --git a/src/backend/tests/unit/utils/test_format_directory_path.py b/src/backend/tests/unit/utils/test_format_directory_path.py
index 027128fb8aac..329383108ef2 100644
--- a/src/backend/tests/unit/utils/test_format_directory_path.py
+++ b/src/backend/tests/unit/utils/test_format_directory_path.py
@@ -3,30 +3,40 @@
 
 
 @pytest.mark.parametrize(
-    "path, expected",
+    "input_path, expected",
     [
-        # Test case 1: Standard path with forward slashes
+        # Test case 1: Standard path with no newlines (no change expected)
         ("/home/user/documents/file.txt", "/home/user/documents/file.txt"),
-        # Test case 2: Path with backslashes (Windows-style)
-        ("C:\\Users\\Documents\\file.txt", "C:/Users/Documents/file.txt"),
-        # Test case 3: Mixed separators
-        ("C:/Users\\Documents/file.txt", "C:/Users/Documents/file.txt"),
-        # Test case 4: Path with only forward slashes
-        ("/home/user/documents/", "/home/user/documents/"),
-        # Test case 5: Path with only backslashes
-        ("\\\\server\\share\\file.txt", "//server/share/file.txt"),
-        # Test case 6: Path with no separators
-        ("file.txt", "file.txt"),
-        # Test case 7: Empty path
+        # Test case 2: Path with newline character (replace \n with \\n)
+        ("/home/user/docu\nments/file.txt", "/home/user/docu\\nments/file.txt"),
+        # Test case 3: Path with multiple newline characters
+        ("/home/user/\ndocu\nments/file.txt", "/home/user/\\ndocu\\nments/file.txt"),
+        # Test case 4: Path with only newline characters
+        ("\n\n\n", "\\n\\n\\n"),
+        # Test case 5: Empty path (as per the original function, this remains an empty string)
         ("", ""),
-        # Test case 8: Path with special characters
-        ("/home/user/my-docs/special_file!.pdf", "/home/user/my-docs/special_file!.pdf"),
-        # Test case 9: Path with dots
-        ("/home/user/../documents/./file.txt", "/home/user/../documents/./file.txt"),
+        # Test case 6: Path with mixed newlines and other special characters
+        ("/home/user/my-\ndocs/special_file!.pdf", "/home/user/my-\\ndocs/special_file!.pdf"),
+        # Test case 7: Windows-style path with newline
+        ("C:\\Users\\\nDocuments\\file.txt", "C:\\Users\\\\nDocuments\\file.txt"),  # No conversion of backslashes
+        # Test case 8: Path with trailing newline
+        ("/home/user/documents/\n", "/home/user/documents/\\n"),
+        # Test case 9: Path with leading newline
+        ("\n/home/user/documents/", "\\n/home/user/documents/"),
+        # Test case 10: Path with multiple consecutive newlines
+        ("/home/user/docu\n\nments/file.txt", "/home/user/docu\\n\\nments/file.txt"),
+        # Test case 11: Windows-style path (backslashes remain unchanged)
+        ("C:\\Users\\Documents\\file.txt", "C:\\Users\\Documents\\file.txt"),
+        # Test case 12: Windows path with trailing backslash
+        ("C:\\Users\\Documents\\", "C:\\Users\\Documents\\"),
+        # Test case 13: Mixed separators (leave as is)
+        ("C:/Users\\Documents/file.txt", "C:/Users\\Documents/file.txt"),
+        # Test case 14: Network path (UNC) (leave backslashes as is)
+        ("\\\\server\\share\\file.txt", "\\\\server\\share\\file.txt"),
     ],
 )
-def test_format_directory_path(path, expected):
-    result = format_directory_path(path)
+def test_format_directory_path(input_path, expected):
+    result = format_directory_path(input_path)
     assert result == expected