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Diffstat (limited to 'src/python/grpcio/tests/unit/framework/face/testing/service.py')
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1 files changed, 337 insertions, 0 deletions
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/service.py b/src/python/grpcio/tests/unit/framework/face/testing/service.py new file mode 100644 index 0000000000..ac0b89b6ee --- /dev/null +++ b/src/python/grpcio/tests/unit/framework/face/testing/service.py @@ -0,0 +1,337 @@ +# 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. + +"""Private interfaces implemented by data sets used in Face-layer tests.""" + +import abc + +# interfaces is referenced from specification in this module. +from grpc.framework.face import interfaces as face_interfaces # pylint: disable=unused-import +from tests.unit.framework.face.testing import interfaces + + +class UnaryUnaryTestMethodImplementation(interfaces.Method): + """A controllable implementation of a unary-unary RPC method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, request, response_callback, context, control): + """Services an RPC that accepts one message and produces one message. + + Args: + request: The single request message for the RPC. + response_callback: A callback to be called to accept the response message + of the RPC. + context: An face_interfaces.RpcContext object. + control: A test_control.Control to control execution of this method. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class UnaryUnaryTestMessages(object): + """A type for unary-request-unary-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def request(self): + """Affords a request message. + + Implementations of this method should return a different message with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A request message. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, request, response, test_case): + """Verifies that the computed response matches the given request. + + Args: + request: A request message. + response: A response message. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the request and response do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class UnaryStreamTestMethodImplementation(interfaces.Method): + """A controllable implementation of a unary-stream RPC method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, request, response_consumer, context, control): + """Services an RPC that takes one message and produces a stream of messages. + + Args: + request: The single request message for the RPC. + response_consumer: A stream.Consumer to be called to accept the response + messages of the RPC. + context: A face_interfaces.RpcContext object. + control: A test_control.Control to control execution of this method. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class UnaryStreamTestMessages(object): + """A type for unary-request-stream-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def request(self): + """Affords a request message. + + Implementations of this method should return a different message with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A request message. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, request, responses, test_case): + """Verifies that the computed responses match the given request. + + Args: + request: A request message. + responses: A sequence of response messages. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the request and responses do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class StreamUnaryTestMethodImplementation(interfaces.Method): + """A controllable implementation of a stream-unary RPC method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, response_callback, context, control): + """Services an RPC that takes a stream of messages and produces one message. + + Args: + response_callback: A callback to be called to accept the response message + of the RPC. + context: A face_interfaces.RpcContext object. + control: A test_control.Control to control execution of this method. + + Returns: + A stream.Consumer with which to accept the request messages of the RPC. + The consumer returned from this method may or may not be invoked to + completion: in the case of RPC abortion, RPC Framework will simply stop + passing messages to this object. Implementations must not assume that + this object will be called to completion of the request stream or even + called at all. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class StreamUnaryTestMessages(object): + """A type for stream-request-unary-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def requests(self): + """Affords a sequence of request messages. + + Implementations of this method should return a different sequences with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A sequence of request messages. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, requests, response, test_case): + """Verifies that the computed response matches the given requests. + + Args: + requests: A sequence of request messages. + response: A response message. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the requests and response do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class StreamStreamTestMethodImplementation(interfaces.Method): + """A controllable implementation of a stream-stream RPC method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, response_consumer, context, control): + """Services an RPC that accepts and produces streams of messages. + + Args: + response_consumer: A stream.Consumer to be called to accept the response + messages of the RPC. + context: A face_interfaces.RpcContext object. + control: A test_control.Control to control execution of this method. + + Returns: + A stream.Consumer with which to accept the request messages of the RPC. + The consumer returned from this method may or may not be invoked to + completion: in the case of RPC abortion, RPC Framework will simply stop + passing messages to this object. Implementations must not assume that + this object will be called to completion of the request stream or even + called at all. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class StreamStreamTestMessages(object): + """A type for stream-request-stream-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def requests(self): + """Affords a sequence of request messages. + + Implementations of this method should return a different sequences with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A sequence of request messages. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, requests, responses, test_case): + """Verifies that the computed response matches the given requests. + + Args: + requests: A sequence of request messages. + responses: A sequence of response messages. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the requests and responses do not match, indicating + that there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class TestService(object): + """A specification of implemented RPC methods to use in tests.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def name(self): + """Identifies the RPC service name used during the test. + + Returns: + The RPC service name to be used for the test. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_unary_scenarios(self): + """Affords unary-request-unary-response test methods and their messages. + + Returns: + A dict from method name to pair. The first element of the pair + is a UnaryUnaryTestMethodImplementation object and the second element + is a sequence of UnaryUnaryTestMethodMessages objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_stream_scenarios(self): + """Affords unary-request-stream-response test methods and their messages. + + Returns: + A dict from method name to pair. The first element of the pair is a + UnaryStreamTestMethodImplementation object and the second element is a + sequence of UnaryStreamTestMethodMessages objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_unary_scenarios(self): + """Affords stream-request-unary-response test methods and their messages. + + Returns: + A dict from method name to pair. The first element of the pair is a + StreamUnaryTestMethodImplementation object and the second element is a + sequence of StreamUnaryTestMethodMessages objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_stream_scenarios(self): + """Affords stream-request-stream-response test methods and their messages. + + Returns: + A dict from method name to pair. The first element of the pair is a + StreamStreamTestMethodImplementation object and the second element is a + sequence of StreamStreamTestMethodMessages objects. + """ + raise NotImplementedError() |