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# Copyright 2016 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.
import unittest
import logging
import grpc
from tests.unit import test_common
from tests.unit.framework.common import test_constants
_REQUEST = b''
_RESPONSE = b''
_UNARY_UNARY = '/test/UnaryUnary'
_UNARY_STREAM = '/test/UnaryStream'
_STREAM_UNARY = '/test/StreamUnary'
_STREAM_STREAM = '/test/StreamStream'
def handle_unary_unary(request, servicer_context):
return _RESPONSE
def handle_unary_stream(request, servicer_context):
for _ in range(test_constants.STREAM_LENGTH):
yield _RESPONSE
def handle_stream_unary(request_iterator, servicer_context):
for request in request_iterator:
pass
return _RESPONSE
def handle_stream_stream(request_iterator, servicer_context):
for request in request_iterator:
yield _RESPONSE
class _MethodHandler(grpc.RpcMethodHandler):
def __init__(self, request_streaming, response_streaming):
self.request_streaming = request_streaming
self.response_streaming = response_streaming
self.request_deserializer = None
self.response_serializer = None
self.unary_unary = None
self.unary_stream = None
self.stream_unary = None
self.stream_stream = None
if self.request_streaming and self.response_streaming:
self.stream_stream = handle_stream_stream
elif self.request_streaming:
self.stream_unary = handle_stream_unary
elif self.response_streaming:
self.unary_stream = handle_unary_stream
else:
self.unary_unary = handle_unary_unary
class _GenericHandler(grpc.GenericRpcHandler):
def service(self, handler_call_details):
if handler_call_details.method == _UNARY_UNARY:
return _MethodHandler(False, False)
elif handler_call_details.method == _UNARY_STREAM:
return _MethodHandler(False, True)
elif handler_call_details.method == _STREAM_UNARY:
return _MethodHandler(True, False)
elif handler_call_details.method == _STREAM_STREAM:
return _MethodHandler(True, True)
else:
return None
class EmptyMessageTest(unittest.TestCase):
def setUp(self):
self._server = test_common.test_server()
self._server.add_generic_rpc_handlers((_GenericHandler(),))
port = self._server.add_insecure_port('[::]:0')
self._server.start()
self._channel = grpc.insecure_channel('localhost:%d' % port)
def tearDown(self):
self._server.stop(0)
self._channel.close()
def testUnaryUnary(self):
response = self._channel.unary_unary(_UNARY_UNARY)(_REQUEST)
self.assertEqual(_RESPONSE, response)
def testUnaryStream(self):
response_iterator = self._channel.unary_stream(_UNARY_STREAM)(_REQUEST)
self.assertSequenceEqual([_RESPONSE] * test_constants.STREAM_LENGTH,
list(response_iterator))
def testStreamUnary(self):
response = self._channel.stream_unary(_STREAM_UNARY)(iter(
[_REQUEST] * test_constants.STREAM_LENGTH))
self.assertEqual(_RESPONSE, response)
def testStreamStream(self):
response_iterator = self._channel.stream_stream(_STREAM_STREAM)(iter(
[_REQUEST] * test_constants.STREAM_LENGTH))
self.assertSequenceEqual([_RESPONSE] * test_constants.STREAM_LENGTH,
list(response_iterator))
if __name__ == '__main__':
logging.basicConfig()
unittest.main(verbosity=2)
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