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# Copyright 2021 The 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.
"""Test the time_remaining() method of async ServicerContext."""
import asyncio
import datetime
import logging
import unittest
import grpc
from grpc import aio
from tests_aio.unit._common import ADHOC_METHOD
from tests_aio.unit._common import AdhocGenericHandler
from tests_aio.unit._test_base import AioTestBase
_REQUEST = b'\x09\x05'
_REQUEST_TIMEOUT_S = datetime.timedelta(seconds=5).total_seconds()
class TestServerTimeRemaining(AioTestBase):
async def setUp(self):
# Create async server
self._server = aio.server(options=(('grpc.so_reuseport', 0),))
self._adhoc_handlers = AdhocGenericHandler()
self._server.add_generic_rpc_handlers((self._adhoc_handlers,))
port = self._server.add_insecure_port('[::]:0')
address = 'localhost:%d' % port
await self._server.start()
# Create async channel
self._channel = aio.insecure_channel(address)
async def tearDown(self):
await self._channel.close()
await self._server.stop(None)
async def test_servicer_context_time_remaining(self):
seen_time_remaining = []
@grpc.unary_unary_rpc_method_handler
def log_time_remaining(request: bytes,
context: grpc.ServicerContext) -> bytes:
seen_time_remaining.append(context.time_remaining())
return b""
# Check if the deadline propagates properly
self._adhoc_handlers.set_adhoc_handler(log_time_remaining)
await self._channel.unary_unary(ADHOC_METHOD)(
_REQUEST, timeout=_REQUEST_TIMEOUT_S)
self.assertGreater(seen_time_remaining[0], _REQUEST_TIMEOUT_S / 2)
# Check if there is no timeout, the time_remaining will be None
self._adhoc_handlers.set_adhoc_handler(log_time_remaining)
await self._channel.unary_unary(ADHOC_METHOD)(_REQUEST)
self.assertIsNone(seen_time_remaining[1])
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
unittest.main(verbosity=2)
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