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Merge pull request grpc#9269 from nathanielmanistaatgoogle/v1.0.x-upm…
…erge v1.0.x manual upmerge.
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247 changes: 247 additions & 0 deletions
247
src/python/grpcio_tests/tests/unit/_invocation_defects_test.py
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| # Copyright 2016, Google Inc. | ||
| # All rights reserved. | ||
| # | ||
| # Redistribution and use in source and binary forms, with or without | ||
| # modification, are permitted provided that the following conditions are | ||
| # met: | ||
| # | ||
| # * Redistributions of source code must retain the above copyright | ||
| # notice, this list of conditions and the following disclaimer. | ||
| # * Redistributions in binary form must reproduce the above | ||
| # copyright notice, this list of conditions and the following disclaimer | ||
| # in the documentation and/or other materials provided with the | ||
| # distribution. | ||
| # * Neither the name of Google Inc. nor the names of its | ||
| # contributors may be used to endorse or promote products derived from | ||
| # this software without specific prior written permission. | ||
| # | ||
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| import itertools | ||
| import threading | ||
| import unittest | ||
| from concurrent import futures | ||
|
|
||
| import grpc | ||
| from grpc.framework.foundation import logging_pool | ||
|
|
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| from tests.unit.framework.common import test_constants | ||
| from tests.unit.framework.common import test_control | ||
|
|
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| _SERIALIZE_REQUEST = lambda bytestring: bytestring * 2 | ||
| _DESERIALIZE_REQUEST = lambda bytestring: bytestring[len(bytestring) // 2:] | ||
| _SERIALIZE_RESPONSE = lambda bytestring: bytestring * 3 | ||
| _DESERIALIZE_RESPONSE = lambda bytestring: bytestring[:len(bytestring) // 3] | ||
|
|
||
| _UNARY_UNARY = '/test/UnaryUnary' | ||
| _UNARY_STREAM = '/test/UnaryStream' | ||
| _STREAM_UNARY = '/test/StreamUnary' | ||
| _STREAM_STREAM = '/test/StreamStream' | ||
|
|
||
|
|
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| class _Callback(object): | ||
| def __init__(self): | ||
| self._condition = threading.Condition() | ||
| self._value = None | ||
| self._called = False | ||
|
|
||
| def __call__(self, value): | ||
| with self._condition: | ||
| self._value = value | ||
| self._called = True | ||
| self._condition.notify_all() | ||
|
|
||
| def value(self): | ||
| with self._condition: | ||
| while not self._called: | ||
| self._condition.wait() | ||
| return self._value | ||
|
|
||
|
|
||
| class _Handler(object): | ||
| def __init__(self, control): | ||
| self._control = control | ||
|
|
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| def handle_unary_unary(self, request, servicer_context): | ||
| self._control.control() | ||
| if servicer_context is not None: | ||
| servicer_context.set_trailing_metadata((('testkey', 'testvalue',),)) | ||
| return request | ||
|
|
||
| def handle_unary_stream(self, request, servicer_context): | ||
| for _ in range(test_constants.STREAM_LENGTH): | ||
| self._control.control() | ||
| yield request | ||
| self._control.control() | ||
| if servicer_context is not None: | ||
| servicer_context.set_trailing_metadata((('testkey', 'testvalue',),)) | ||
|
|
||
| def handle_stream_unary(self, request_iterator, servicer_context): | ||
| if servicer_context is not None: | ||
| servicer_context.invocation_metadata() | ||
| self._control.control() | ||
| response_elements = [] | ||
| for request in request_iterator: | ||
| self._control.control() | ||
| response_elements.append(request) | ||
| self._control.control() | ||
| if servicer_context is not None: | ||
| servicer_context.set_trailing_metadata((('testkey', 'testvalue',),)) | ||
| return b''.join(response_elements) | ||
|
|
||
| def handle_stream_stream(self, request_iterator, servicer_context): | ||
| self._control.control() | ||
| if servicer_context is not None: | ||
| servicer_context.set_trailing_metadata((('testkey', 'testvalue',),)) | ||
| for request in request_iterator: | ||
| self._control.control() | ||
| yield request | ||
| self._control.control() | ||
|
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||
|
|
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| class _MethodHandler(grpc.RpcMethodHandler): | ||
| def __init__( | ||
| self, request_streaming, response_streaming, request_deserializer, | ||
| response_serializer, unary_unary, unary_stream, stream_unary, | ||
| stream_stream): | ||
| self.request_streaming = request_streaming | ||
| self.response_streaming = response_streaming | ||
| self.request_deserializer = request_deserializer | ||
| self.response_serializer = response_serializer | ||
| self.unary_unary = unary_unary | ||
| self.unary_stream = unary_stream | ||
| self.stream_unary = stream_unary | ||
| self.stream_stream = stream_stream | ||
|
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||
|
|
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| class _GenericHandler(grpc.GenericRpcHandler): | ||
| def __init__(self, handler): | ||
| self._handler = handler | ||
|
|
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| def service(self, handler_call_details): | ||
| if handler_call_details.method == _UNARY_UNARY: | ||
| return _MethodHandler( | ||
| False, False, None, None, self._handler.handle_unary_unary, None, | ||
| None, None) | ||
| elif handler_call_details.method == _UNARY_STREAM: | ||
| return _MethodHandler( | ||
| False, True, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None, | ||
| self._handler.handle_unary_stream, None, None) | ||
| elif handler_call_details.method == _STREAM_UNARY: | ||
| return _MethodHandler( | ||
| True, False, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None, None, | ||
| self._handler.handle_stream_unary, None) | ||
| elif handler_call_details.method == _STREAM_STREAM: | ||
| return _MethodHandler( | ||
| True, True, None, None, None, None, None, | ||
| self._handler.handle_stream_stream) | ||
| else: | ||
| return None | ||
|
|
||
|
|
||
| class FailAfterFewIterationsCounter(object): | ||
| def __init__(self, high, bytestring): | ||
| self._current = 0 | ||
| self._high = high | ||
| self._bytestring = bytestring | ||
|
|
||
| def __iter__(self): | ||
| return self | ||
|
|
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| def __next__(self): | ||
| if self._current >= self._high: | ||
| raise Exception("This is a deliberate failure in a unit test.") | ||
| else: | ||
| self._current += 1 | ||
| return self._bytestring | ||
|
|
||
|
|
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| def _unary_unary_multi_callable(channel): | ||
| return channel.unary_unary(_UNARY_UNARY) | ||
|
|
||
|
|
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| def _unary_stream_multi_callable(channel): | ||
| return channel.unary_stream( | ||
| _UNARY_STREAM, | ||
| request_serializer=_SERIALIZE_REQUEST, | ||
| response_deserializer=_DESERIALIZE_RESPONSE) | ||
|
|
||
|
|
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| def _stream_unary_multi_callable(channel): | ||
| return channel.stream_unary( | ||
| _STREAM_UNARY, | ||
| request_serializer=_SERIALIZE_REQUEST, | ||
| response_deserializer=_DESERIALIZE_RESPONSE) | ||
|
|
||
|
|
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| def _stream_stream_multi_callable(channel): | ||
| return channel.stream_stream(_STREAM_STREAM) | ||
|
|
||
|
|
||
| class InvocationDefectsTest(unittest.TestCase): | ||
| def setUp(self): | ||
| self._control = test_control.PauseFailControl() | ||
| self._handler = _Handler(self._control) | ||
| self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY) | ||
|
|
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| self._server = grpc.server(self._server_pool) | ||
| port = self._server.add_insecure_port('[::]:0') | ||
| self._server.add_generic_rpc_handlers((_GenericHandler(self._handler),)) | ||
| self._server.start() | ||
|
|
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| self._channel = grpc.insecure_channel('localhost:%d' % port) | ||
|
|
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| def tearDown(self): | ||
| self._server.stop(0) | ||
|
|
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| def testIterableStreamRequestBlockingUnaryResponse(self): | ||
| requests = [b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)] | ||
| multi_callable = _stream_unary_multi_callable(self._channel) | ||
|
|
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| with self.assertRaises(grpc.RpcError): | ||
| response = multi_callable( | ||
| requests, | ||
| metadata=(('test', 'IterableStreamRequestBlockingUnaryResponse'),)) | ||
|
|
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| def testIterableStreamRequestFutureUnaryResponse(self): | ||
| requests = [b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)] | ||
| multi_callable = _stream_unary_multi_callable(self._channel) | ||
| response_future = multi_callable.future( | ||
| requests, | ||
| metadata=( | ||
| ('test', 'IterableStreamRequestFutureUnaryResponse'),)) | ||
|
|
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| with self.assertRaises(grpc.RpcError): | ||
| response = response_future.result() | ||
|
|
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| def testIterableStreamRequestStreamResponse(self): | ||
| requests = [b'\x77\x58' for _ in range(test_constants.STREAM_LENGTH)] | ||
| multi_callable = _stream_stream_multi_callable(self._channel) | ||
| response_iterator = multi_callable( | ||
| requests, | ||
| metadata=(('test', 'IterableStreamRequestStreamResponse'),)) | ||
|
|
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| with self.assertRaises(grpc.RpcError): | ||
| next(response_iterator) | ||
|
|
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| def testIteratorStreamRequestStreamResponse(self): | ||
| requests_iterator = FailAfterFewIterationsCounter( | ||
| test_constants.STREAM_LENGTH // 2, b'\x07\x08') | ||
| multi_callable = _stream_stream_multi_callable(self._channel) | ||
| response_iterator = multi_callable( | ||
| requests_iterator, | ||
| metadata=(('test', 'IteratorStreamRequestStreamResponse'),)) | ||
|
|
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| with self.assertRaises(grpc.RpcError): | ||
| for _ in range(test_constants.STREAM_LENGTH // 2 + 1): | ||
| next(response_iterator) |
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