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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.
"""Tests Base interface compliance of the core-over-gRPC-links stack."""
import collections
import logging
import random
import time
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
from grpc.framework.interfaces.base 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.base import test_cases
from tests.unit.framework.interfaces.base import test_interfaces
class _SerializationBehaviors(
collections.namedtuple(
'_SerializationBehaviors',
('request_serializers', 'request_deserializers', 'response_serializers',
'response_deserializers',))):
pass
class _Links(
collections.namedtuple(
'_Links',
('invocation_end_link', 'invocation_grpc_link', 'service_grpc_link',
'service_end_link'))):
pass
def _serialization_behaviors_from_serializations(serializations):
request_serializers = {}
request_deserializers = {}
response_serializers = {}
response_deserializers = {}
for (group, method), serialization in six.iteritems(serializations):
request_serializers[group, method] = serialization.serialize_request
request_deserializers[group, method] = serialization.deserialize_request
response_serializers[group, method] = serialization.serialize_response
response_deserializers[group, method] = serialization.deserialize_response
return _SerializationBehaviors(
request_serializers, request_deserializers, response_serializers,
response_deserializers)
class _Implementation(test_interfaces.Implementation):
def instantiate(self, serializations, servicer):
serialization_behaviors = _serialization_behaviors_from_serializations(
serializations)
invocation_end_link = implementations.invocation_end_link()
service_end_link = 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_end_link.join_link(service_grpc_link)
service_grpc_link.join_link(service_end_link)
invocation_grpc_link.start()
service_grpc_link.start()
return invocation_end_link, service_end_link, (
invocation_grpc_link, service_grpc_link)
def destantiate(self, memo):
invocation_grpc_link, service_grpc_link = memo
invocation_grpc_link.stop()
service_grpc_link.begin_stop()
service_grpc_link.end_stop()
def invocation_initial_metadata(self):
return grpc_test_common.INVOCATION_INITIAL_METADATA
def service_initial_metadata(self):
return grpc_test_common.SERVICE_INITIAL_METADATA
def invocation_completion(self):
return utilities.completion(None, None, None)
def service_completion(self):
return utilities.completion(
grpc_test_common.SERVICE_TERMINAL_METADATA,
beta_interfaces.StatusCode.OK, 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 completion_transmitted(self, original_completion, transmitted_completion):
if (original_completion.terminal_metadata is not None and
not grpc_test_common.metadata_transmitted(
original_completion.terminal_metadata,
transmitted_completion.terminal_metadata)):
return False
elif original_completion.code is not transmitted_completion.code:
return False
elif original_completion.message != transmitted_completion.message:
return False
else:
return True
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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