ref: Auto-fix ruff rules in tests (#4154)

src/backend/tests/unit/utils/test_connection_string_parser.py

@@ -3,7 +3,7 @@ from langflow.utils.connection_string_parser import transform_connection_string
 
 
 @pytest.mark.parametrize(
-    "connection_string, expected",
+    ("connection_string", "expected"),
     [
         ("protocol:user:password@host", "protocol:user:password@host"),
         ("protocol:user@host", "protocol:user@host"),

src/backend/tests/unit/utils/test_format_directory_path.py

@@ -3,7 +3,7 @@ from langflow.base.data.utils import format_directory_path
 
 
 @pytest.mark.parametrize(
-    "input_path, expected",
+    ("input_path", "expected"),
     [
         # Test case 1: Standard path with no newlines (no change expected)
         ("/home/user/documents/file.txt", "/home/user/documents/file.txt"),

src/backend/tests/unit/utils/test_rewrite_file_path.py

@@ -1,9 +1,9 @@
-from langflow.base.data.utils import format_directory_path
 import pytest
+from langflow.base.data.utils import format_directory_path
 
 
 @pytest.mark.parametrize(
-    "input_path, expected",
+    ("input_path", "expected"),
     [
         # Test case 1: Standard path with no newlines
         ("/home/user/documents/file.txt", "/home/user/documents/file.txt"),

src/backend/tests/unit/utils/test_truncate_long_strings.py

@@ -1,9 +1,11 @@
+import math
+
 import pytest
 from langflow.utils.util_strings import truncate_long_strings
 
 
 @pytest.mark.parametrize(
-    "input_data, max_length, expected",
+    ("input_data", "max_length", "expected"),
     [
         # Test case 1: String shorter than max_length
         ("short string", 20, "short string"),
@@ -20,7 +22,7 @@ from langflow.utils.util_strings import truncate_long_strings
         # Test case 7: Integer input
         (12345, 3, 12345),
         # Test case 8: Float input
-        (3.14159, 4, 3.14159),
+        (math.pi, 4, math.pi),
         # Test case 9: Boolean input
         (True, 2, True),
         # Test case 10: None input

src/backend/tests/unit/utils/test_truncate_long_strings_on_objects.py

@@ -1,10 +1,10 @@
-from langflow.utils.util_strings import truncate_long_strings
-from langflow.utils.constants import MAX_TEXT_LENGTH
 import pytest
+from langflow.utils.constants import MAX_TEXT_LENGTH
+from langflow.utils.util_strings import truncate_long_strings
 
 
 @pytest.mark.parametrize(
-    "input_data, max_length, expected",
+    ("input_data", "max_length", "expected"),
     [
         # Test case 1: Simple string truncation
         ({"key": "a" * 100}, 10, {"key": "a" * 10 + "..."}),