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# 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 grpc_test.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()
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