| # Copyright 2017 gRPC authors. |
| # |
| # 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. |
| """Tests that a channel will reconnect if a connection is dropped""" |
| |
| import unittest |
| |
| import grpc |
| from grpc.framework.foundation import logging_pool |
| |
| from tests.unit.framework.common import test_constants |
| |
| _REQUEST = b'\x00\x00\x00' |
| _RESPONSE = b'\x00\x00\x01' |
| |
| _UNARY_UNARY = '/test/UnaryUnary' |
| |
| |
| def _handle_unary_unary(unused_request, unused_servicer_context): |
| return _RESPONSE |
| |
| |
| class ReconnectTest(unittest.TestCase): |
| |
| def test_reconnect(self): |
| server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) |
| handler = grpc.method_handlers_generic_handler('test', { |
| 'UnaryUnary': |
| grpc.unary_unary_rpc_method_handler(_handle_unary_unary) |
| }) |
| server = grpc.server(server_pool, (handler,)) |
| port = server.add_insecure_port('[::]:0') |
| server.start() |
| channel = grpc.insecure_channel('localhost:%d' % port) |
| multi_callable = channel.unary_unary(_UNARY_UNARY) |
| self.assertEqual(_RESPONSE, multi_callable(_REQUEST)) |
| server.stop(None) |
| server = grpc.server(server_pool, (handler,)) |
| server.add_insecure_port('[::]:{}'.format(port)) |
| server.start() |
| self.assertEqual(_RESPONSE, multi_callable(_REQUEST)) |
| |
| |
| if __name__ == '__main__': |
| unittest.main(verbosity=2) |