fix flakiness

Author: naji247

tests/test_logging.py

@@ -71,15 +71,19 @@ def test_write_to_log_appends_messages(self, tmp_path):
             content = log_file.read_text()
             lines = content.strip().split('\n')
 
+            # Filter lines to only those containing our unique_id
+            # This prevents interference from other concurrent logging
+            test_lines = [line for line in lines if unique_id in line]
+            
             # Verify all messages are present
-            assert len(lines) == len(messages), f"Expected exactly {len(messages)} lines, got {len(lines)}"
+            assert len(test_lines) == len(messages), f"Expected exactly {len(messages)} lines with unique_id, got {len(test_lines)}"
 
             for i, msg in enumerate(messages):
-                assert msg in lines[i], f"Message '{msg}' not found in line {i}"
+                assert msg in test_lines[i], f"Message '{msg}' not found in line {i}"
 
             # Verify messages are in chronological order
             timestamps = []
-            for line in lines:
+            for line in test_lines:
                 # Extract timestamp from [timestamp] format
                 timestamp = line.split('] ')[0].strip('[')
                 timestamps.append(timestamp)