diff options
Diffstat (limited to 'src/python/grpcio_tests/tests/unit/_invocation_defects_test.py')
| -rw-r--r-- | src/python/grpcio_tests/tests/unit/_invocation_defects_test.py | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py b/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py new file mode 100644 index 0000000000..efeb237874 --- /dev/null +++ b/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py @@ -0,0 +1,259 @@ +# 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 + +from tests.unit.framework.common import test_constants +from tests.unit.framework.common import test_control + +_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' + + +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 + + 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() + + +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 + + +class _GenericHandler(grpc.GenericRpcHandler): + + def __init__(self, handler): + self._handler = handler + + 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 + + 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 + + +def _unary_unary_multi_callable(channel): + return channel.unary_unary(_UNARY_UNARY) + + +def _unary_stream_multi_callable(channel): + return channel.unary_stream( + _UNARY_STREAM, + request_serializer=_SERIALIZE_REQUEST, + response_deserializer=_DESERIALIZE_RESPONSE) + + +def _stream_unary_multi_callable(channel): + return channel.stream_unary( + _STREAM_UNARY, + request_serializer=_SERIALIZE_REQUEST, + response_deserializer=_DESERIALIZE_RESPONSE) + + +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) + + 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() + + self._channel = grpc.insecure_channel('localhost:%d' % port) + + def tearDown(self): + self._server.stop(0) + + def testIterableStreamRequestBlockingUnaryResponse(self): + requests = [b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)] + multi_callable = _stream_unary_multi_callable(self._channel) + + with self.assertRaises(grpc.RpcError): + response = multi_callable( + requests, + metadata=( + ('test', 'IterableStreamRequestBlockingUnaryResponse'),)) + + 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'),)) + + with self.assertRaises(grpc.RpcError): + response = response_future.result() + + 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'),)) + + with self.assertRaises(grpc.RpcError): + next(response_iterator) + + 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'),)) + + with self.assertRaises(grpc.RpcError): + for _ in range(test_constants.STREAM_LENGTH // 2 + 1): + next(response_iterator) |