fix: move test_weight_random_host_selector.py to unit test folder

tests/integration/container/conftest.py

@@ -109,7 +109,12 @@ def pytest_runtest_setup(item):
                 logger.warning("conftest.ExceptionWhileObtainingInstanceIDs", ex)
                 instances = list()
 
-            sleep(5)
+            # Only sleep if condition is still not met
+            if (len(instances) < request.get_num_of_instances()
+                or len(instances) == 0
+                or not rds_utility.is_db_instance_writer(instances[0])) and (
+                    timeit.default_timer() - start_time) < 300:
+                sleep(5)
 
         assert len(instances) > 0
         current_writer = instances[0]
@@ -144,6 +149,7 @@ def pytest_runtest_setup(item):
         MonitoringThreadContainer.clean_up()
         ThreadPoolContainer.release_resources(wait=True)
 
+        ConnectionProviderManager.release_resources()
         ConnectionProviderManager.reset_provider()
         DatabaseDialectManager.reset_custom_dialect()
         DriverDialectManager.reset_custom_dialect()

tests/integration/container/test_read_write_splitting.py

@@ -81,6 +81,11 @@ def clear_caches(self):
         RdsHostListProvider._topology_cache.clear()
         RdsHostListProvider._is_primary_cluster_id_cache.clear()
         RdsHostListProvider._cluster_ids_to_update.clear()
+        yield
+        ConnectionProviderManager.release_resources()
+        ConnectionProviderManager.reset_provider()
+        gc.collect()
+        ProxyHelper.enable_all_connectivity()
 
     @pytest.fixture
     def props(self, plugin_config, conn_utils):
@@ -196,14 +201,6 @@ def proxied_failover_props(self, failover_props, plugin_config, conn_utils):
         )
         return props_copy
 
-    @pytest.fixture(autouse=True)
-    def cleanup_connection_provider(self):
-        yield
-        ConnectionProviderManager.release_resources()
-        ConnectionProviderManager.reset_provider()
-        gc.collect()
-        ProxyHelper.enable_all_connectivity()
-
     def test_connect_to_writer__switch_read_only(
         self, test_driver: TestDriver, props, conn_utils, rds_utils
     ):