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# Copyright 2015-2016, 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.
"""Tests Face compliance of the crust-over-core-over-gRPC-links stack."""
import collections
import unittest
import six
from grpc._adapter import _intermediary_low
from grpc._links import invocation
from grpc._links import service
from grpc.beta import interfaces as beta_interfaces
from grpc.framework.core import implementations as core_implementations
from grpc.framework.crust import implementations as crust_implementations
from grpc.framework.foundation import logging_pool
from grpc.framework.interfaces.links import utilities
from tests.unit import test_common as grpc_test_common
from tests.unit.framework.common import test_constants
from tests.unit.framework.interfaces.face import test_cases
from tests.unit.framework.interfaces.face import test_interfaces
class _SerializationBehaviors(
collections.namedtuple(
'_SerializationBehaviors',
('request_serializers', 'request_deserializers', 'response_serializers',
'response_deserializers',))):
pass
def _serialization_behaviors_from_test_methods(test_methods):
request_serializers = {}
request_deserializers = {}
response_serializers = {}
response_deserializers = {}
for (group, method), test_method in six.iteritems(test_methods):
request_serializers[group, method] = test_method.serialize_request
request_deserializers[group, method] = test_method.deserialize_request
response_serializers[group, method] = test_method.serialize_response
response_deserializers[group, method] = test_method.deserialize_response
return _SerializationBehaviors(
request_serializers, request_deserializers, response_serializers,
response_deserializers)
class _Implementation(test_interfaces.Implementation):
def instantiate(
self, methods, method_implementations, multi_method_implementation):
pool = logging_pool.pool(test_constants.POOL_SIZE)
servicer = crust_implementations.servicer(
method_implementations, multi_method_implementation, pool)
serialization_behaviors = _serialization_behaviors_from_test_methods(
methods)
invocation_end_link = core_implementations.invocation_end_link()
service_end_link = core_implementations.service_end_link(
servicer, test_constants.DEFAULT_TIMEOUT,
test_constants.MAXIMUM_TIMEOUT)
service_grpc_link = service.service_link(
serialization_behaviors.request_deserializers,
serialization_behaviors.response_serializers)
port = service_grpc_link.add_port('[::]:0', None)
channel = _intermediary_low.Channel('localhost:%d' % port, None)
invocation_grpc_link = invocation.invocation_link(
channel, b'localhost', None,
serialization_behaviors.request_serializers,
serialization_behaviors.response_deserializers)
invocation_end_link.join_link(invocation_grpc_link)
invocation_grpc_link.join_link(invocation_end_link)
service_grpc_link.join_link(service_end_link)
service_end_link.join_link(service_grpc_link)
service_end_link.start()
invocation_end_link.start()
invocation_grpc_link.start()
service_grpc_link.start()
generic_stub = crust_implementations.generic_stub(invocation_end_link, pool)
# TODO(nathaniel): Add a "groups" attribute to _digest.TestServiceDigest.
group = next(iter(methods))[0]
# TODO(nathaniel): Add a "cardinalities_by_group" attribute to
# _digest.TestServiceDigest.
cardinalities = {
method: method_object.cardinality()
for (group, method), method_object in six.iteritems(methods)}
dynamic_stub = crust_implementations.dynamic_stub(
invocation_end_link, group, cardinalities, pool)
return generic_stub, {group: dynamic_stub}, (
invocation_end_link, invocation_grpc_link, service_grpc_link,
service_end_link, pool)
def destantiate(self, memo):
(invocation_end_link, invocation_grpc_link, service_grpc_link,
service_end_link, pool) = memo
invocation_end_link.stop(0).wait()
invocation_grpc_link.stop()
service_grpc_link.begin_stop()
service_end_link.stop(0).wait()
service_grpc_link.end_stop()
invocation_end_link.join_link(utilities.NULL_LINK)
invocation_grpc_link.join_link(utilities.NULL_LINK)
service_grpc_link.join_link(utilities.NULL_LINK)
service_end_link.join_link(utilities.NULL_LINK)
pool.shutdown(wait=True)
def invocation_metadata(self):
return grpc_test_common.INVOCATION_INITIAL_METADATA
def initial_metadata(self):
return grpc_test_common.SERVICE_INITIAL_METADATA
def terminal_metadata(self):
return grpc_test_common.SERVICE_TERMINAL_METADATA
def code(self):
return beta_interfaces.StatusCode.OK
def details(self):
return grpc_test_common.DETAILS
def metadata_transmitted(self, original_metadata, transmitted_metadata):
return original_metadata is None or grpc_test_common.metadata_transmitted(
original_metadata, transmitted_metadata)
def load_tests(loader, tests, pattern):
return unittest.TestSuite(
tests=tuple(
loader.loadTestsFromTestCase(test_case_class)
for test_case_class in test_cases.test_cases(_Implementation())))
if __name__ == '__main__':
unittest.main(verbosity=2)
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