fix(tests): Clean up unused imports and variables flagged by Ruff

- darshan: Remove unused AsyncMock import
- jarvis: Remove unused os, sys, MagicMock, AsyncMock, HTTPException imports
- pandas: Remove unused json, datetime, timedelta, patch, MagicMock, numpy imports
- parallel-sort: Remove unused filter_logs import
- parquet: Remove unused json, os imports and fix unused variable in error handling test
- All Ruff linting checks now pass

Author: JaimeCernuda

agent-toolkit-mcp-servers/darshan/tests/test_darshan_parser_posix_mpiio.py

@@ -1,7 +1,7 @@
 """Tests for POSIX and MPI-IO operation parsing functions in Darshan parser."""
 
 import pytest
-from unittest.mock import patch, AsyncMock
+from unittest.mock import patch
 import os
 import sys
 

agent-toolkit-mcp-servers/hdf5/uv.lock

@@ -4,10 +4,7 @@
 """
 
 import pytest
-import os
-import sys
-from unittest.mock import Mock, patch, MagicMock, AsyncMock
-from fastapi import HTTPException
+from unittest.mock import Mock, patch
 
 
 class TestPipelineToolsDirect:

agent-toolkit-mcp-servers/jarvis/tests/test_server_direct.py

@@ -8,7 +8,6 @@
 import tempfile
 import os
 import sys
-import json
 
 # Add the parent directory to Python path so we can import src
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

agent-toolkit-mcp-servers/pandas/tests/test_data_io.py

@@ -8,7 +8,6 @@
 import tempfile
 import os
 import sys
-from unittest.mock import patch, MagicMock
 
 # Add the parent directory to Python path
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

agent-toolkit-mcp-servers/pandas/tests/test_memory_optimization.py

@@ -8,7 +8,6 @@
 import tempfile
 import os
 import sys
-from datetime import datetime, timedelta
 
 # Add the parent directory to Python path
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

agent-toolkit-mcp-servers/pandas/tests/test_time_series.py

@@ -4,7 +4,6 @@
 
 import pytest
 import pandas as pd
-import numpy as np
 import tempfile
 import os
 import sys

agent-toolkit-mcp-servers/pandas/tests/test_transformations.py

@@ -6,7 +6,7 @@
 import tempfile
 import os
 from implementation.export_handler import export_to_json, export_to_csv, export_to_text, export_summary_report
-from implementation.filter_handler import filter_logs, filter_by_time_range
+from implementation.filter_handler import filter_by_time_range
 from implementation.sort_handler import sort_log_by_timestamp
 from implementation.parallel_processor import parallel_sort_large_file
 from implementation.statistics_handler import analyze_log_statistics

agent-toolkit-mcp-servers/parallel-sort/tests/test_edge_cases.py

@@ -89,7 +89,6 @@ async def test_column_preview_max_items_negative(self, edge_test_file):
     async def test_column_preview_generic_exception(self, edge_test_file):
         """Test column preview with corrupted file to trigger generic exception."""
         from parquet_mcp.capabilities.parquet_handler import get_column_preview
-        import os
 
         # Create a corrupted file
         corrupted_file = edge_test_file.replace('.parquet', '_corrupt.parquet')
@@ -148,7 +147,6 @@ async def test_aggregate_unknown_operation_result_none(self, edge_test_file):
     async def test_aggregate_generic_exception(self, edge_test_file):
         """Test aggregate with corrupted file to trigger generic exception."""
         from parquet_mcp.capabilities.parquet_handler import aggregate_column
-        import os
 
         # Create a corrupted file
         corrupted_file = edge_test_file.replace('.parquet', '_agg_corrupt.parquet')