142 lines
4.5 KiB
Python
142 lines
4.5 KiB
Python
# Copyright 2015 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 itertools
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import unittest
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import pytest
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try:
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from mockupdb import MockupDB, OpMsg, 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 operations import operations # type: ignore[import]
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from pymongo import MongoClient, ReadPreference
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from pymongo.common import MIN_SUPPORTED_WIRE_VERSION
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from pymongo.read_preferences import (
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_MONGOS_MODES,
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make_read_preference,
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read_pref_mode_from_name,
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)
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pytestmark = pytest.mark.mockupdb
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class TestMongosCommandReadMode(unittest.TestCase):
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def test_aggregate(self):
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server = MockupDB()
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server.autoresponds(
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"ismaster",
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ismaster=True,
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msg="isdbgrid",
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minWireVersion=2,
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maxWireVersion=MIN_SUPPORTED_WIRE_VERSION,
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)
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self.addCleanup(server.stop)
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server.run()
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client = MongoClient(server.uri)
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self.addCleanup(client.close)
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collection = client.test.collection
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with going(collection.aggregate, []):
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command = server.receives(aggregate="collection", pipeline=[])
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self.assertFalse(command.slave_ok, "SlaveOkay set")
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command.ok(result=[{}])
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secondary_collection = collection.with_options(read_preference=ReadPreference.SECONDARY)
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with going(secondary_collection.aggregate, []):
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command = server.receives(
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OpMsg(
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{
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"aggregate": "collection",
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"pipeline": [],
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"$readPreference": {"mode": "secondary"},
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}
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)
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)
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command.ok(result=[{}])
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self.assertTrue(command.slave_ok, "SlaveOkay not set")
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def create_mongos_read_mode_test(mode, operation):
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def test(self):
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server = MockupDB()
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self.addCleanup(server.stop)
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server.run()
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server.autoresponds(
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"ismaster",
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ismaster=True,
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msg="isdbgrid",
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minWireVersion=2,
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maxWireVersion=MIN_SUPPORTED_WIRE_VERSION,
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)
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pref = make_read_preference(read_pref_mode_from_name(mode), tag_sets=None)
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client = MongoClient(server.uri, read_preference=pref)
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self.addCleanup(client.close)
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with going(operation.function, client):
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request = server.receive()
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request.reply(operation.reply)
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if operation.op_type == "always-use-secondary":
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self.assertEqual(ReadPreference.SECONDARY.document, request.doc.get("$readPreference"))
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slave_ok = mode != "primary"
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elif operation.op_type == "must-use-primary":
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slave_ok = False
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elif operation.op_type == "may-use-secondary":
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slave_ok = mode != "primary"
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actual_pref = request.doc.get("$readPreference")
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if mode == "primary":
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self.assertIsNone(actual_pref)
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else:
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self.assertEqual(pref.document, actual_pref)
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else:
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self.fail("unrecognized op_type %r" % operation.op_type)
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if slave_ok:
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self.assertTrue(request.slave_ok, "SlaveOkay not set")
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else:
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self.assertFalse(request.slave_ok, "SlaveOkay set")
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return test
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def generate_mongos_read_mode_tests():
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matrix = itertools.product(_MONGOS_MODES, operations)
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for entry in matrix:
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mode, operation = entry
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if mode == "primary" and operation.op_type == "always-use-secondary":
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# Skip something like command('foo', read_preference=SECONDARY).
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continue
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test = create_mongos_read_mode_test(mode, operation)
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test_name = "test_{}_with_mode_{}".format(operation.name.replace(" ", "_"), mode)
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test.__name__ = test_name
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setattr(TestMongosCommandReadMode, test_name, test)
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generate_mongos_read_mode_tests()
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if __name__ == "__main__":
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unittest.main()
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