78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
# Copyright 2016 MongoDB, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import annotations
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import unittest
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from test import PyMongoTestCase
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import pytest
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try:
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from mockupdb import MockupDB, going
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_HAVE_MOCKUPDB = True
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except ImportError:
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_HAVE_MOCKUPDB = False
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from pymongo.common import MIN_SUPPORTED_WIRE_VERSION
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pytestmark = pytest.mark.mockupdb
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class TestMaxStalenessMongos(PyMongoTestCase):
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def test_mongos(self):
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mongos = MockupDB()
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mongos.autoresponds(
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"ismaster", maxWireVersion=MIN_SUPPORTED_WIRE_VERSION, ismaster=True, msg="isdbgrid"
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)
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mongos.run()
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self.addCleanup(mongos.stop)
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# No maxStalenessSeconds.
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uri = "mongodb://localhost:%d/?readPreference=secondary" % mongos.port
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client = self.simple_client(uri)
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with going(client.db.coll.find_one) as future:
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request = mongos.receives()
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self.assertNotIn("maxStalenessSeconds", request.doc["$readPreference"])
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self.assertTrue(request.slave_okay)
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request.ok(cursor={"firstBatch": [], "id": 0})
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# find_one succeeds with no result.
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self.assertIsNone(future())
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# Set maxStalenessSeconds to 1. Client has no minimum with mongos,
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# we let mongos enforce the 90-second minimum and return an error:
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# SERVER-27146.
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uri = (
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"mongodb://localhost:%d/?readPreference=secondary"
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"&maxStalenessSeconds=1" % mongos.port
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)
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client = self.simple_client(uri)
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with going(client.db.coll.find_one) as future:
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request = mongos.receives()
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self.assertEqual(1, request.doc["$readPreference"]["maxStalenessSeconds"])
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self.assertTrue(request.slave_okay)
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request.ok(cursor={"firstBatch": [], "id": 0})
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self.assertIsNone(future())
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if __name__ == "__main__":
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unittest.main()
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