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test_threads.py
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# Copyright 2009-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 that pymongo is thread safe."""
import threading
from test import (client_context,
db_user,
db_pwd,
IntegrationTest,
unittest)
from test.utils import rs_or_single_client_noauth, rs_or_single_client
from test.utils import joinall
from pymongo.errors import OperationFailure
@client_context.require_connection
def setUpModule():
pass
class AutoAuthenticateThreads(threading.Thread):
def __init__(self, collection, num):
threading.Thread.__init__(self)
self.coll = collection
self.num = num
self.success = False
self.setDaemon(True)
def run(self):
for i in range(self.num):
self.coll.insert_one({'num': i})
self.coll.find_one({'num': i})
self.success = True
class SaveAndFind(threading.Thread):
def __init__(self, collection):
threading.Thread.__init__(self)
self.collection = collection
self.setDaemon(True)
self.passed = False
def run(self):
sum = 0
for document in self.collection.find():
sum += document["x"]
assert sum == 499500, "sum was %d not 499500" % sum
self.passed = True
class Insert(threading.Thread):
def __init__(self, collection, n, expect_exception):
threading.Thread.__init__(self)
self.collection = collection
self.n = n
self.expect_exception = expect_exception
self.setDaemon(True)
def run(self):
for _ in range(self.n):
error = True
try:
self.collection.insert_one({"test": "insert"})
error = False
except:
if not self.expect_exception:
raise
if self.expect_exception:
assert error
class Update(threading.Thread):
def __init__(self, collection, n, expect_exception):
threading.Thread.__init__(self)
self.collection = collection
self.n = n
self.expect_exception = expect_exception
self.setDaemon(True)
def run(self):
for _ in range(self.n):
error = True
try:
self.collection.update_one({"test": "unique"},
{"$set": {"test": "update"}})
error = False
except:
if not self.expect_exception:
raise
if self.expect_exception:
assert error
class Disconnect(threading.Thread):
def __init__(self, client, n):
threading.Thread.__init__(self)
self.client = client
self.n = n
self.passed = False
def run(self):
for _ in range(self.n):
self.client.close()
self.passed = True
class TestThreads(IntegrationTest):
def setUp(self):
self.db = self.client.pymongo_test
def test_threading(self):
self.db.drop_collection("test")
self.db.test.insert_many([{"x": i} for i in range(1000)])
threads = []
for i in range(10):
t = SaveAndFind(self.db.test)
t.start()
threads.append(t)
joinall(threads)
def test_safe_insert(self):
self.db.drop_collection("test1")
self.db.test1.insert_one({"test": "insert"})
self.db.drop_collection("test2")
self.db.test2.insert_one({"test": "insert"})
self.db.test2.create_index("test", unique=True)
self.db.test2.find_one()
okay = Insert(self.db.test1, 2000, False)
error = Insert(self.db.test2, 2000, True)
error.start()
okay.start()
error.join()
okay.join()
def test_safe_update(self):
self.db.drop_collection("test1")
self.db.test1.insert_one({"test": "update"})
self.db.test1.insert_one({"test": "unique"})
self.db.drop_collection("test2")
self.db.test2.insert_one({"test": "update"})
self.db.test2.insert_one({"test": "unique"})
self.db.test2.create_index("test", unique=True)
self.db.test2.find_one()
okay = Update(self.db.test1, 2000, False)
error = Update(self.db.test2, 2000, True)
error.start()
okay.start()
error.join()
okay.join()
def test_client_disconnect(self):
db = rs_or_single_client(serverSelectionTimeoutMS=30000).pymongo_test
db.drop_collection("test")
db.test.insert_many([{"x": i} for i in range(1000)])
# Start 10 threads that execute a query, and 10 threads that call
# client.close() 10 times in a row.
threads = [SaveAndFind(db.test) for _ in range(10)]
threads.extend(Disconnect(db.client, 10) for _ in range(10))
for t in threads:
t.start()
for t in threads:
t.join(300)
for t in threads:
self.assertTrue(t.passed)
class TestThreadsAuth(IntegrationTest):
@classmethod
@client_context.require_auth
def setUpClass(cls):
super(TestThreadsAuth, cls).setUpClass()
def test_auto_auth_login(self):
# Create the database upfront to workaround SERVER-39167.
self.client.auth_test.test.insert_one({})
self.addCleanup(self.client.drop_database, "auth_test")
client = rs_or_single_client_noauth()
self.assertRaises(OperationFailure, client.auth_test.test.find_one)
# Admin auth
client.admin.authenticate(db_user, db_pwd)
nthreads = 10
threads = []
for _ in range(nthreads):
t = AutoAuthenticateThreads(client.auth_test.test, 10)
t.start()
threads.append(t)
joinall(threads)
for t in threads:
self.assertTrue(t.success)
if __name__ == "__main__":
unittest.main()