old_contents: # Copyright 2015 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.
  
  import time
  
  from mockupdb import MockupDB, wait_until
  from pymongo import MongoClient
  
  from tests import unittest
  
  
  class TestInitialIsMaster(unittest.TestCase):
      def test_initial_ismaster(self):
          server = MockupDB()
          server.run()
          self.addCleanup(server.stop)
  
          start = time.time()
          client = MongoClient(server.uri)
          self.addCleanup(client.close)
  
          # A single ismaster is enough for the client to be connected.
          self.assertIsNone(client.address)
          server.receives('ismaster').ok()
          wait_until(lambda: client.address is not None,
                     'update address', timeout=1)
  
          # At least 10 seconds before next heartbeat.
          server.receives('ismaster').ok()
          self.assertGreaterEqual(time.time() - start, 10)
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: # Copyright 2015 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.
  
  import time
  
  from mockupdb import MockupDB, wait_until
  from pymongo import MongoClient
  
  from tests import unittest
  
  
  class TestInitialIsMaster(unittest.TestCase):
      def test_initial_ismaster(self):
          server = MockupDB()
          server.run()
          self.addCleanup(server.stop)
  
          start = time.time()
          client = MongoClient(server.uri)
          self.addCleanup(client.close)
  
          # A single ismaster is enough for the client to be connected.
          self.assertFalse(client.nodes)
          server.receives('ismaster').ok(ismaster=True)
          wait_until(lambda: client.nodes,
                     'update nodes', timeout=1)
  
          # At least 10 seconds before next heartbeat.
          server.receives('ismaster').ok(ismaster=True)
          self.assertGreaterEqual(time.time() - start, 10)
  
  if __name__ == '__main__':
      unittest.main()
  
subject: Update for PYTHON 985: MongoClient properties now block until connected.