catch_warnings instead of assertLogs in test

Author: tammy-baylis-swi

opentelemetry-sdk/tests/logs/test_export.py

@@ -17,6 +17,7 @@
 import os
 import time
 import unittest
+import warnings
 from concurrent.futures import ThreadPoolExecutor
 from sys import version_info
 from unittest.mock import Mock, patch
@@ -193,7 +194,7 @@ def test_simple_log_record_processor_shutdown(self):
         )
         exporter.clear()
         logger_provider.shutdown()
-        with self.assertLogs(level=logging.WARNING):
+        with warnings.catch_warnings(record=True):
             logger.warning("Log after shutdown")
         finished_logs = exporter.get_finished_logs()
         self.assertEqual(len(finished_logs), 0)