Noah Eisen
7 years ago
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GitHub
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7 changed files with 28 additions and 374 deletions
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# Copyright 2018 gRPC authors. |
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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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"""Tests servicers sending OK status without having read all requests. |
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This is a regression test of https://github.com/grpc/grpc/issues/6891. |
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""" |
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import enum |
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import unittest |
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import six |
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import grpc |
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from tests.unit import test_common |
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from tests.unit.framework.common import test_constants |
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_RPC_METHOD = '/serffice/Meffod' |
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@enum.unique |
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class _MessageCount(enum.Enum): |
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ZERO = ( |
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0, |
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'Zero', |
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) |
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TWO = ( |
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1, |
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'Two', |
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) |
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MANY = ( |
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test_constants.STREAM_LENGTH, |
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'Many', |
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) |
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@enum.unique |
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class _MessageSize(enum.Enum): |
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EMPTY = ( |
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0, |
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'Empty', |
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) |
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SMALL = ( |
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32, |
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'Small', |
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) # Smaller than any flow control window. |
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LARGE = ( |
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3 * 1024 * 1024, |
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'Large', |
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) # Larger than any flow control window. |
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_ZERO_MESSAGE = b'' |
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_SMALL_MESSAGE = b'\x07' * _MessageSize.SMALL.value[0] |
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_LARGE_MESSAGE = b'abc' * (_MessageSize.LARGE.value[0] // 3) |
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@enum.unique |
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class _ReadRequests(enum.Enum): |
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ZERO = ( |
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0, |
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'Zero', |
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) |
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TWO = ( |
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2, |
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'Two', |
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) |
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class _Case(object): |
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def __init__(self, request_count, request_size, request_reading, |
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response_count, response_size): |
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self.request_count = request_count |
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self.request_size = request_size |
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self.request_reading = request_reading |
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self.response_count = response_count |
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self.response_size = response_size |
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def create_test_case_name(self): |
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return '{}{}Requests{}Read{}{}ResponsesEarlyOKTest'.format( |
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self.request_count.value[1], self.request_size.value[1], |
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self.request_reading.value[1], self.response_count.value[1], |
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self.response_size.value[1]) |
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def _message(message_size): |
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if message_size is _MessageSize.EMPTY: |
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return _ZERO_MESSAGE |
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elif message_size is _MessageSize.SMALL: |
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return _SMALL_MESSAGE |
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elif message_size is _MessageSize.LARGE: |
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return _LARGE_MESSAGE |
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def _messages_to_send(count, size): |
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for _ in range(count.value[0]): |
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yield _message(size) |
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def _draw_requests(case, request_iterator): |
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for _ in range( |
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min(case.request_count.value[0], case.request_reading.value[0])): |
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next(request_iterator) |
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def _draw_responses(case, response_iterator): |
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for _ in range(case.response_count.value[0]): |
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next(response_iterator) |
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class _MethodHandler(grpc.RpcMethodHandler): |
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def __init__(self, case): |
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self.request_streaming = True |
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self.response_streaming = True |
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self.request_deserializer = None |
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self.response_serializer = None |
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self.unary_unary = None |
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self.unary_stream = None |
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self.stream_unary = None |
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self._case = case |
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def stream_stream(self, request_iterator, servicer_context): |
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_draw_requests(self._case, request_iterator) |
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for response in _messages_to_send(self._case.response_count, |
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self._case.response_size): |
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yield response |
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class _GenericHandler(grpc.GenericRpcHandler): |
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def __init__(self, case): |
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self._case = case |
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def service(self, handler_call_details): |
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return _MethodHandler(self._case) |
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class _EarlyOkTest(unittest.TestCase): |
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def setUp(self): |
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self._server = test_common.test_server() |
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port = self._server.add_insecure_port('[::]:0') |
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self._server.add_generic_rpc_handlers((_GenericHandler(self.case),)) |
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self._server.start() |
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self._channel = grpc.insecure_channel('localhost:%d' % port) |
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self._multi_callable = self._channel.stream_stream(_RPC_METHOD) |
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def tearDown(self): |
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self._server.stop(None) |
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def test_early_ok(self): |
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requests = _messages_to_send(self.case.request_count, |
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self.case.request_size) |
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response_iterator_call = self._multi_callable(requests) |
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_draw_responses(self.case, response_iterator_call) |
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self.assertIs(grpc.StatusCode.OK, response_iterator_call.code()) |
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def _cases(): |
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for request_count in _MessageCount: |
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for request_size in _MessageSize: |
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for request_reading in _ReadRequests: |
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for response_count in _MessageCount: |
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for response_size in _MessageSize: |
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yield _Case(request_count, request_size, |
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request_reading, response_count, |
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response_size) |
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def _test_case_classes(): |
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for case in _cases(): |
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yield type(case.create_test_case_name(), (_EarlyOkTest,), { |
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'case': case, |
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'__module__': _EarlyOkTest.__module__, |
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}) |
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def load_tests(loader, tests, pattern): |
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return unittest.TestSuite( |
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tests=tuple( |
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loader.loadTestsFromTestCase(test_case_class) |
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for test_case_class in _test_case_classes())) |
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if __name__ == '__main__': |
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unittest.main(verbosity=2) |
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