Convert test.test_monitor to async

Author: sleepyStick

test/asynchronous/test_monitor.py

@@ -0,0 +1,97 @@
+# Copyright 2014-present MongoDB, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Test the monitor module."""
+from __future__ import annotations
+
+import gc
+import subprocess
+import sys
+import warnings
+from functools import partial
+
+sys.path[0:0] = [""]
+
+from test.asynchronous import AsyncIntegrationTest, connected, unittest
+from test.utils import (
+    ServerAndTopologyEventListener,
+    async_wait_until,
+)
+
+from pymongo.periodic_executor import _EXECUTORS
+
+_IS_SYNC = False
+
+def unregistered(ref):
+    gc.collect()
+    return ref not in _EXECUTORS
+
+
+def get_executors(client):
+    executors = []
+    for server in client._topology._servers.values():
+        executors.append(server._monitor._executor)
+        executors.append(server._monitor._rtt_monitor._executor)
+    executors.append(client._kill_cursors_executor)
+    executors.append(client._topology._Topology__events_executor)
+    return [e for e in executors if e is not None]
+
+
+class TestMonitor(AsyncIntegrationTest):
+    async def create_client(self):
+        listener = ServerAndTopologyEventListener()
+        client = await self.unmanaged_async_single_client(event_listeners=[listener])
+        await connected(client)
+        return client
+
+    async def test_cleanup_executors_on_client_del(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore")
+            client = await self.create_client()
+            executors = get_executors(client)
+            self.assertEqual(len(executors), 4)
+
+            # Each executor stores a weakref to itself in _EXECUTORS.
+            executor_refs = [(r, r()._name) for r in _EXECUTORS.copy() if r() in executors]
+
+            del executors
+            del client
+
+            for ref, name in executor_refs:
+                await async_wait_until(partial(unregistered, ref), f"unregister executor: {name}", timeout=5)
+
+    async def test_cleanup_executors_on_client_close(self):
+        client = await self.create_client()
+        executors = get_executors(client)
+        self.assertEqual(len(executors), 4)
+
+        await client.close()
+
+        for executor in executors:
+            await async_wait_until(lambda: executor._stopped, f"closed executor: {executor._name}", timeout=5)
+
+    async def test_no_thread_start_runtime_err_on_shutdown(self):
+        """Test we silence noisy runtime errors fired when the AsyncMongoClient spawns a new thread
+        on process shutdown."""
+        command = [sys.executable, "-c", "from pymongo import AsyncMongoClient; c = AsyncMongoClient()"]
+        completed_process: subprocess.CompletedProcess = subprocess.run(
+            command, capture_output=True
+        )
+
+        self.assertFalse(completed_process.stderr)
+        self.assertFalse(completed_process.stdout)
+
+
+if __name__ == "__main__":
+    unittest.main()

test/test_monitor.py

@@ -31,6 +31,7 @@
 
 from pymongo.periodic_executor import _EXECUTORS
 
+_IS_SYNC = True
 
 def unregistered(ref):
     gc.collect()

tools/synchro.py

@@ -214,6 +214,7 @@ def async_only_test(f: str) -> bool:
     "test_json_util_integration.py",
     "test_gridfs_spec.py",
     "test_logger.py",
+    "test_monitor.py",
     "test_monitoring.py",
     "test_raw_bson.py",
     "test_retryable_reads.py",