Add unit test for channel ready

pull/21885/head
Lidi Zheng 5 years ago
parent 6a330edf74
commit a5503cc64a
  1. 68
      src/python/grpcio_tests/tests_aio/unit/channel_ready_test.py

@ -0,0 +1,68 @@
# Copyright 2020 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.
"""Testing the channel_ready function."""
import asyncio
import gc
import logging
import time
import unittest
import grpc
from grpc.experimental import aio
from tests.unit.framework.common import get_socket, test_constants
from tests_aio.unit import _common
from tests_aio.unit._test_base import AioTestBase
from tests_aio.unit._test_server import start_test_server
class TestChannelReady(AioTestBase):
async def setUp(self):
address, self._port, self._socket = get_socket(listen=False)
self._channel = aio.insecure_channel(f"{address}:{self._port}")
self._socket.close()
async def tearDown(self):
await self._channel.close()
async def test_channel_ready_success(self):
# Start `channel_ready` as another Task
channel_ready_task = self.loop.create_task(
aio.channel_ready(self._channel))
# Wait for TRANSIENT_FAILURE
await _common.block_until_certain_state(
self._channel, grpc.ChannelConnectivity.TRANSIENT_FAILURE)
try:
# Start the server
_, server = await start_test_server(port=self._port)
# The RPC should recover itself
await channel_ready_task
finally:
if server is not None:
await server.stop(None)
async def test_channel_ready_blocked(self):
with self.assertRaises(asyncio.TimeoutError):
await asyncio.wait_for(aio.channel_ready(self._channel),
test_constants.SHORT_TIMEOUT)
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
unittest.main(verbosity=2)
Loading…
Cancel
Save