diff options
Diffstat (limited to 'src/python')
| -rw-r--r-- | src/python/grpcio/grpc/__init__.py | 96 | ||||
| -rw-r--r-- | src/python/grpcio/grpc/_utilities.py | 26 | ||||
| -rw-r--r-- | src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py | 583 | ||||
| -rw-r--r-- | src/python/grpcio/tests/tests.json | 1 |
4 files changed, 705 insertions, 1 deletions
diff --git a/src/python/grpcio/grpc/__init__.py b/src/python/grpcio/grpc/__init__.py index 5ba5a4e1fd..a8897501d1 100644 --- a/src/python/grpcio/grpc/__init__.py +++ b/src/python/grpcio/grpc/__init__.py @@ -900,6 +900,102 @@ class Server(six.with_metaclass(abc.ABCMeta)): ################################# Functions ################################ +def unary_unary_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a unary-unary RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + a single request value and returning a single response value. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a unary-unary RPC method constructed from the given + parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + False, False, request_deserializer, response_serializer, behavior, None, + None, None) + + +def unary_stream_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a unary-stream RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + a single request value and returning an iterator of response values. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a unary-stream RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + False, True, request_deserializer, response_serializer, None, behavior, + None, None) + + +def stream_unary_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a stream-unary RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + an iterator of request values and returning a single response value. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a stream-unary RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + True, False, request_deserializer, response_serializer, None, None, + behavior, None) + + +def stream_stream_rpc_method_handler( + behavior, request_deserializer=None, response_serializer=None): + """Creates an RpcMethodHandler for a stream-stream RPC method. + + Args: + behavior: The implementation of an RPC method as a callable behavior taking + an iterator of request values and returning an iterator of response + values. + request_deserializer: An optional request deserialization behavior. + response_serializer: An optional response serialization behavior. + + Returns: + An RpcMethodHandler for a stream-stream RPC method constructed from the + given parameters. + """ + from grpc import _utilities + return _utilities.RpcMethodHandler( + True, True, request_deserializer, response_serializer, None, None, None, + behavior) + + +def method_handlers_generic_handler(service, method_handlers): + """Creates a grpc.GenericRpcHandler from RpcMethodHandlers. + + Args: + service: A service name to be used for the given method handlers. + method_handlers: A dictionary from method name to RpcMethodHandler + implementing the named method. + + Returns: + A GenericRpcHandler constructed from the given parameters. + """ + from grpc import _utilities + return _utilities.DictionaryGenericHandler(service, method_handlers) + + def ssl_channel_credentials( root_certificates=None, private_key=None, certificate_chain=None): """Creates a ChannelCredentials for use with an SSL-enabled Channel. diff --git a/src/python/grpcio/grpc/_utilities.py b/src/python/grpcio/grpc/_utilities.py index a4ca9b7282..4850967fbc 100644 --- a/src/python/grpcio/grpc/_utilities.py +++ b/src/python/grpcio/grpc/_utilities.py @@ -29,16 +29,41 @@ """Internal utilities for gRPC Python.""" +import collections import threading import time +import six + import grpc +from grpc import _common from grpc.framework.foundation import callable_util _DONE_CALLBACK_EXCEPTION_LOG_MESSAGE = ( 'Exception calling connectivity future "done" callback!') +class RpcMethodHandler( + collections.namedtuple( + '_RpcMethodHandler', + ('request_streaming', 'response_streaming', 'request_deserializer', + 'response_serializer', 'unary_unary', 'unary_stream', 'stream_unary', + 'stream_stream',)), + grpc.RpcMethodHandler): + pass + + +class DictionaryGenericHandler(grpc.GenericRpcHandler): + + def __init__(self, service, method_handlers): + self._method_handlers = { + _common.fully_qualified_method(service, method): method_handler + for method, method_handler in six.iteritems(method_handlers)} + + def service(self, handler_call_details): + return self._method_handlers.get(handler_call_details.method) + + class _ChannelReadyFuture(grpc.Future): def __init__(self, channel): @@ -144,4 +169,3 @@ def channel_ready_future(channel): ready_future = _ChannelReadyFuture(channel) ready_future.start() return ready_future - diff --git a/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py b/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py new file mode 100644 index 0000000000..1c9cbb0d0c --- /dev/null +++ b/src/python/grpcio/tests/protoc_plugin/_python_plugin_test.py @@ -0,0 +1,583 @@ +# Copyright 2015, 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 collections +from concurrent import futures +import contextlib +import distutils.spawn +import errno +import os +import shutil +import subprocess +import sys +import tempfile +import threading +import unittest + +from six import moves + +import grpc +from tests.unit.framework.common import test_constants + +# Identifiers of entities we expect to find in the generated module. +STUB_IDENTIFIER = 'TestServiceStub' +SERVICER_IDENTIFIER = 'TestServiceServicer' +ADD_SERVICER_TO_SERVER_IDENTIFIER = 'add_TestServiceServicer_to_server' + + +class _ServicerMethods(object): + + def __init__(self, response_pb2, payload_pb2): + self._condition = threading.Condition() + self._paused = False + self._fail = False + self._response_pb2 = response_pb2 + self._payload_pb2 = payload_pb2 + + @contextlib.contextmanager + def pause(self): # pylint: disable=invalid-name + with self._condition: + self._paused = True + yield + with self._condition: + self._paused = False + self._condition.notify_all() + + @contextlib.contextmanager + def fail(self): # pylint: disable=invalid-name + with self._condition: + self._fail = True + yield + with self._condition: + self._fail = False + + def _control(self): # pylint: disable=invalid-name + with self._condition: + if self._fail: + raise ValueError() + while self._paused: + self._condition.wait() + + def UnaryCall(self, request, unused_rpc_context): + response = self._response_pb2.SimpleResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * request.response_size + self._control() + return response + + def StreamingOutputCall(self, request, unused_rpc_context): + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + yield response + + def StreamingInputCall(self, request_iter, unused_rpc_context): + response = self._response_pb2.StreamingInputCallResponse() + aggregated_payload_size = 0 + for request in request_iter: + aggregated_payload_size += len(request.payload.payload_compressable) + response.aggregated_payload_size = aggregated_payload_size + self._control() + return response + + def FullDuplexCall(self, request_iter, unused_rpc_context): + for request in request_iter: + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + yield response + + def HalfDuplexCall(self, request_iter, unused_rpc_context): + responses = [] + for request in request_iter: + for parameter in request.response_parameters: + response = self._response_pb2.StreamingOutputCallResponse() + response.payload.payload_type = self._payload_pb2.COMPRESSABLE + response.payload.payload_compressable = 'a' * parameter.size + self._control() + responses.append(response) + for response in responses: + yield response + + +class _Service( + collections.namedtuple( + '_Service', ('servicer_methods', 'server', 'stub',))): + """A live and running service. + + Attributes: + servicer_methods: The _ServicerMethods servicing RPCs. + server: The grpc.Server servicing RPCs. + stub: A stub on which to invoke RPCs. + """ + + +def _CreateService(service_pb2, response_pb2, payload_pb2): + """Provides a servicer backend and a stub. + + Args: + service_pb2: The service_pb2 module generated by this test. + response_pb2: The response_pb2 module generated by this test. + payload_pb2: The payload_pb2 module generated by this test. + + Returns: + A _Service with which to test RPCs. + """ + servicer_methods = _ServicerMethods(response_pb2, payload_pb2) + + class Servicer(getattr(service_pb2, SERVICER_IDENTIFIER)): + + def UnaryCall(self, request, context): + return servicer_methods.UnaryCall(request, context) + + def StreamingOutputCall(self, request, context): + return servicer_methods.StreamingOutputCall(request, context) + + def StreamingInputCall(self, request_iter, context): + return servicer_methods.StreamingInputCall(request_iter, context) + + def FullDuplexCall(self, request_iter, context): + return servicer_methods.FullDuplexCall(request_iter, context) + + def HalfDuplexCall(self, request_iter, context): + return servicer_methods.HalfDuplexCall(request_iter, context) + + server = grpc.server( + (), futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE)) + getattr(service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER)(Servicer(), server) + port = server.add_insecure_port('[::]:0') + server.start() + channel = grpc.insecure_channel('localhost:{}'.format(port)) + stub = getattr(service_pb2, STUB_IDENTIFIER)(channel) + return _Service(servicer_methods, server, stub) + + +def _CreateIncompleteService(service_pb2): + """Provides a servicer backend that fails to implement methods and its stub. + + Args: + service_pb2: The service_pb2 module generated by this test. + + Returns: + A _Service with which to test RPCs. The returned _Service's + servicer_methods implements none of the methods required of it. + """ + + class Servicer(getattr(service_pb2, SERVICER_IDENTIFIER)): + pass + + server = grpc.server( + (), futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE)) + getattr(service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER)(Servicer(), server) + port = server.add_insecure_port('[::]:0') + server.start() + channel = grpc.insecure_channel('localhost:{}'.format(port)) + stub = getattr(service_pb2, STUB_IDENTIFIER)(channel) + return _Service(None, server, stub) + + +def _streaming_input_request_iterator(request_pb2, payload_pb2): + for _ in range(3): + request = request_pb2.StreamingInputCallRequest() + request.payload.payload_type = payload_pb2.COMPRESSABLE + request.payload.payload_compressable = 'a' + yield request + + +def _streaming_output_request(request_pb2): + request = request_pb2.StreamingOutputCallRequest() + sizes = [1, 2, 3] + request.response_parameters.add(size=sizes[0], interval_us=0) + request.response_parameters.add(size=sizes[1], interval_us=0) + request.response_parameters.add(size=sizes[2], interval_us=0) + return request + + +def _full_duplex_request_iterator(request_pb2): + request = request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + request = request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=2, interval_us=0) + request.response_parameters.add(size=3, interval_us=0) + yield request + + +class PythonPluginTest(unittest.TestCase): + """Test case for the gRPC Python protoc-plugin. + + While reading these tests, remember that the futures API + (`stub.method.future()`) only gives futures for the *response-unary* + methods and does not exist for response-streaming methods. + """ + + def setUp(self): + # Assume that the appropriate protoc and grpc_python_plugins are on the + # path. + protoc_command = 'protoc' + protoc_plugin_filename = distutils.spawn.find_executable( + 'grpc_python_plugin') + if not os.path.isfile(protoc_command): + # Assume that if we haven't built protoc that it's on the system. + protoc_command = 'protoc' + + # Ensure that the output directory exists. + self.outdir = tempfile.mkdtemp() + + # Find all proto files + paths = [] + root_dir = os.path.dirname(os.path.realpath(__file__)) + proto_dir = os.path.join(root_dir, 'protos') + for walk_root, _, filenames in os.walk(proto_dir): + for filename in filenames: + if filename.endswith('.proto'): + path = os.path.join(walk_root, filename) + paths.append(path) + + # Invoke protoc with the plugin. + cmd = [ + protoc_command, + '--plugin=protoc-gen-python-grpc=%s' % protoc_plugin_filename, + '-I %s' % root_dir, + '--python_out=%s' % self.outdir, + '--python-grpc_out=%s' % self.outdir + ] + paths + subprocess.check_call(' '.join(cmd), shell=True, env=os.environ, + cwd=os.path.dirname(os.path.realpath(__file__))) + + # Generated proto directories dont include __init__.py, but + # these are needed for python package resolution + for walk_root, _, _ in os.walk(os.path.join(self.outdir, 'protos')): + path = os.path.join(walk_root, '__init__.py') + open(path, 'a').close() + + sys.path.insert(0, self.outdir) + + import protos.payload.test_payload_pb2 as payload_pb2 + import protos.requests.r.test_requests_pb2 as request_pb2 + import protos.responses.test_responses_pb2 as response_pb2 + import protos.service.test_service_pb2 as service_pb2 + self._payload_pb2 = payload_pb2 + self._request_pb2 = request_pb2 + self._response_pb2 = response_pb2 + self._service_pb2 = service_pb2 + + def tearDown(self): + try: + shutil.rmtree(self.outdir) + except OSError as exc: + if exc.errno != errno.ENOENT: + raise + sys.path.remove(self.outdir) + + def testImportAttributes(self): + # check that we can access the generated module and its members. + self.assertIsNotNone( + getattr(self._service_pb2, STUB_IDENTIFIER, None)) + self.assertIsNotNone( + getattr(self._service_pb2, SERVICER_IDENTIFIER, None)) + self.assertIsNotNone( + getattr(self._service_pb2, ADD_SERVICER_TO_SERVER_IDENTIFIER, None)) + + def testUpDown(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + self.assertIsNotNone(service.servicer_methods) + self.assertIsNotNone(service.server) + self.assertIsNotNone(service.stub) + + def testIncompleteServicer(self): + service = _CreateIncompleteService(self._service_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with self.assertRaises(grpc.RpcError) as exception_context: + service.stub.UnaryCall(request) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.UNIMPLEMENTED) + + def testUnaryCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + response = service.stub.UnaryCall(request) + expected_response = service.servicer_methods.UnaryCall( + request, 'not a real context!') + self.assertEqual(expected_response, response) + + def testUnaryCallFuture(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + # Check that the call does not block waiting for the server to respond. + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future(request) + response = response_future.result() + expected_response = service.servicer_methods.UnaryCall( + request, 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testUnaryCallFutureExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future( + request, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + self.assertIs(response_future.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testUnaryCallFutureCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.pause(): + response_future = service.stub.UnaryCall.future(request) + response_future.cancel() + self.assertTrue(response_future.cancelled()) + self.assertIs(response_future.code(), grpc.StatusCode.CANCELLED) + + def testUnaryCallFutureFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = self._request_pb2.SimpleRequest(response_size=13) + with service.servicer_methods.fail(): + response_future = service.stub.UnaryCall.future(request) + self.assertIsNotNone(response_future.exception()) + self.assertIs(response_future.code(), grpc.StatusCode.UNKNOWN) + + def testStreamingOutputCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + responses = service.stub.StreamingOutputCall(request) + expected_responses = service.servicer_methods.StreamingOutputCall( + request, 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testStreamingOutputCallExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + with service.servicer_methods.pause(): + responses = service.stub.StreamingOutputCall( + request, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + list(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testStreamingOutputCallCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + responses = service.stub.StreamingOutputCall(request) + next(responses) + responses.cancel() + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(responses.code(), grpc.StatusCode.CANCELLED) + + def testStreamingOutputCallFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request = _streaming_output_request(self._request_pb2) + with service.servicer_methods.fail(): + responses = service.stub.StreamingOutputCall(request) + self.assertIsNotNone(responses) + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(exception_context.exception.code(), grpc.StatusCode.UNKNOWN) + + def testStreamingInputCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + response = service.stub.StreamingInputCall( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + expected_response = service.servicer_methods.StreamingInputCall( + _streaming_input_request_iterator(self._request_pb2, self._payload_pb2), + 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testStreamingInputCallFuture(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + response = response_future.result() + expected_response = service.servicer_methods.StreamingInputCall( + _streaming_input_request_iterator(self._request_pb2, self._payload_pb2), + 'not a real RpcContext!') + self.assertEqual(expected_response, response) + + def testStreamingInputCallFutureExpired(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2), + timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + response_future.result() + self.assertIsInstance(response_future.exception(), grpc.RpcError) + self.assertIs( + response_future.exception().code(), grpc.StatusCode.DEADLINE_EXCEEDED) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testStreamingInputCallFutureCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + response_future.cancel() + self.assertTrue(response_future.cancelled()) + with self.assertRaises(grpc.FutureCancelledError): + response_future.result() + + def testStreamingInputCallFutureFailed(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.fail(): + response_future = service.stub.StreamingInputCall.future( + _streaming_input_request_iterator( + self._request_pb2, self._payload_pb2)) + self.assertIsNotNone(response_future.exception()) + self.assertIs(response_future.code(), grpc.StatusCode.UNKNOWN) + + def testFullDuplexCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + responses = service.stub.FullDuplexCall( + _full_duplex_request_iterator(self._request_pb2)) + expected_responses = service.servicer_methods.FullDuplexCall( + _full_duplex_request_iterator(self._request_pb2), + 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testFullDuplexCallExpired(self): + request_iterator = _full_duplex_request_iterator(self._request_pb2) + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.pause(): + responses = service.stub.FullDuplexCall( + request_iterator, timeout=test_constants.SHORT_TIMEOUT) + with self.assertRaises(grpc.RpcError) as exception_context: + list(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + def testFullDuplexCallCancelled(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + request_iterator = _full_duplex_request_iterator(self._request_pb2) + responses = service.stub.FullDuplexCall(request_iterator) + next(responses) + responses.cancel() + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.CANCELLED) + + def testFullDuplexCallFailed(self): + request_iterator = _full_duplex_request_iterator(self._request_pb2) + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with service.servicer_methods.fail(): + responses = service.stub.FullDuplexCall(request_iterator) + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs(exception_context.exception.code(), grpc.StatusCode.UNKNOWN) + + def testHalfDuplexCall(self): + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + def half_duplex_request_iterator(): + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=2, interval_us=0) + request.response_parameters.add(size=3, interval_us=0) + yield request + responses = service.stub.HalfDuplexCall(half_duplex_request_iterator()) + expected_responses = service.servicer_methods.HalfDuplexCall( + half_duplex_request_iterator(), 'not a real RpcContext!') + for expected_response, response in moves.zip_longest( + expected_responses, responses): + self.assertEqual(expected_response, response) + + def testHalfDuplexCallWedged(self): + condition = threading.Condition() + wait_cell = [False] + @contextlib.contextmanager + def wait(): # pylint: disable=invalid-name + # Where's Python 3's 'nonlocal' statement when you need it? + with condition: + wait_cell[0] = True + yield + with condition: + wait_cell[0] = False + condition.notify_all() + def half_duplex_request_iterator(): + request = self._request_pb2.StreamingOutputCallRequest() + request.response_parameters.add(size=1, interval_us=0) + yield request + with condition: + while wait_cell[0]: + condition.wait() + service = _CreateService( + self._service_pb2, self._response_pb2, self._payload_pb2) + with wait(): + responses = service.stub.HalfDuplexCall( + half_duplex_request_iterator(), timeout=test_constants.SHORT_TIMEOUT) + # half-duplex waits for the client to send all info + with self.assertRaises(grpc.RpcError) as exception_context: + next(responses) + self.assertIs( + exception_context.exception.code(), grpc.StatusCode.DEADLINE_EXCEEDED) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio/tests/tests.json b/src/python/grpcio/tests/tests.json index 53b2998b78..391bb39ef5 100644 --- a/src/python/grpcio/tests/tests.json +++ b/src/python/grpcio/tests/tests.json @@ -49,6 +49,7 @@ "_low_test.HangingServerShutdown", "_low_test.InsecureServerInsecureClient", "_not_found_test.NotFoundTest", + "_python_plugin_test.PythonPluginTest", "_read_some_but_not_all_responses_test.ReadSomeButNotAllResponsesTest", "_rpc_test.RPCTest", "_sanity_test.Sanity", |