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# Copyright 2018 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests server context abort mechanism"""
import unittest
import collections
import logging
import grpc
from tests.unit import test_common
from tests.unit.framework.common import test_constants
_ABORT = '/test/abort'
_ABORT_WITH_STATUS = '/test/AbortWithStatus'
_INVALID_CODE = '/test/InvalidCode'
_REQUEST = b'\x00\x00\x00'
_RESPONSE = b'\x00\x00\x00'
_ABORT_DETAILS = 'Abandon ship!'
_ABORT_METADATA = (('a-trailing-metadata', '42'),)
class _Status(
collections.namedtuple(
'_Status', ('code', 'details', 'trailing_metadata')), grpc.Status):
pass
def abort_unary_unary(request, servicer_context):
servicer_context.abort(
grpc.StatusCode.INTERNAL,
_ABORT_DETAILS,
)
raise Exception('This line should not be executed!')
def abort_with_status_unary_unary(request, servicer_context):
servicer_context.abort_with_status(
_Status(
code=grpc.StatusCode.INTERNAL,
details=_ABORT_DETAILS,
trailing_metadata=_ABORT_METADATA,
))
raise Exception('This line should not be executed!')
def invalid_code_unary_unary(request, servicer_context):
servicer_context.abort(
42,
_ABORT_DETAILS,
)
class _GenericHandler(grpc.GenericRpcHandler):
def service(self, handler_call_details):
if handler_call_details.method == _ABORT:
return grpc.unary_unary_rpc_method_handler(abort_unary_unary)
elif handler_call_details.method == _ABORT_WITH_STATUS:
return grpc.unary_unary_rpc_method_handler(
abort_with_status_unary_unary)
elif handler_call_details.method == _INVALID_CODE:
return grpc.stream_stream_rpc_method_handler(
invalid_code_unary_unary)
else:
return None
class AbortTest(unittest.TestCase):
def setUp(self):
self._server = test_common.test_server()
port = self._server.add_insecure_port('[::]:0')
self._server.add_generic_rpc_handlers((_GenericHandler(),))
self._server.start()
self._channel = grpc.insecure_channel('localhost:%d' % port)
def tearDown(self):
self._channel.close()
self._server.stop(0)
def test_abort(self):
with self.assertRaises(grpc.RpcError) as exception_context:
self._channel.unary_unary(_ABORT)(_REQUEST)
rpc_error = exception_context.exception
self.assertEqual(rpc_error.code(), grpc.StatusCode.INTERNAL)
self.assertEqual(rpc_error.details(), _ABORT_DETAILS)
def test_abort_with_status(self):
with self.assertRaises(grpc.RpcError) as exception_context:
self._channel.unary_unary(_ABORT_WITH_STATUS)(_REQUEST)
rpc_error = exception_context.exception
self.assertEqual(rpc_error.code(), grpc.StatusCode.INTERNAL)
self.assertEqual(rpc_error.details(), _ABORT_DETAILS)
self.assertEqual(rpc_error.trailing_metadata(), _ABORT_METADATA)
def test_invalid_code(self):
with self.assertRaises(grpc.RpcError) as exception_context:
self._channel.unary_unary(_INVALID_CODE)(_REQUEST)
rpc_error = exception_context.exception
self.assertEqual(rpc_error.code(), grpc.StatusCode.UNKNOWN)
self.assertEqual(rpc_error.details(), _ABORT_DETAILS)
if __name__ == '__main__':
logging.basicConfig()
unittest.main(verbosity=2)
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