mirror of https://github.com/grpc/grpc.git
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# Copyright 2020 The gRPC Authors |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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"""Tests behavior of the try connect API on client side.""" |
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import asyncio |
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import logging |
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import unittest |
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import datetime |
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from typing import Callable, Tuple |
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import grpc |
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from grpc.experimental import aio |
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from tests_aio.unit._test_base import AioTestBase |
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from tests_aio.unit._test_server import start_test_server |
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from tests_aio.unit import _common |
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from src.proto.grpc.testing import messages_pb2, test_pb2_grpc |
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_REQUEST = b'\x01\x02\x03' |
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_UNREACHABLE_TARGET = '0.1:1111' |
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_TEST_METHOD = '/test/Test' |
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_NUM_STREAM_RESPONSES = 5 |
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_REQUEST_PAYLOAD_SIZE = 7 |
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_RESPONSE_PAYLOAD_SIZE = 42 |
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class TestTryConnect(AioTestBase): |
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"""Tests if try connect raises connectivity issue.""" |
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async def setUp(self): |
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address, self._server = await start_test_server() |
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self._channel = aio.insecure_channel(address) |
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self._dummy_channel = aio.insecure_channel(_UNREACHABLE_TARGET) |
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self._stub = test_pb2_grpc.TestServiceStub(self._channel) |
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async def tearDown(self): |
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await self._dummy_channel.close() |
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await self._channel.close() |
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await self._server.stop(None) |
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async def test_unary_stream_ok(self): |
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request = messages_pb2.StreamingOutputCallRequest() |
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for _ in range(_NUM_STREAM_RESPONSES): |
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request.response_parameters.append( |
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messages_pb2.ResponseParameters(size=_RESPONSE_PAYLOAD_SIZE)) |
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call = self._stub.StreamingOutputCall(request) |
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# No exception raised and no message swallowed. |
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await call.try_connect() |
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response_cnt = 0 |
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async for response in call: |
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response_cnt += 1 |
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self.assertIs(type(response), |
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messages_pb2.StreamingOutputCallResponse) |
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self.assertEqual(_RESPONSE_PAYLOAD_SIZE, len(response.payload.body)) |
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self.assertEqual(_NUM_STREAM_RESPONSES, response_cnt) |
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self.assertEqual(await call.code(), grpc.StatusCode.OK) |
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async def test_stream_stream_ok(self): |
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call = self._stub.FullDuplexCall() |
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# No exception raised and no message swallowed. |
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await call.try_connect() |
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request = messages_pb2.StreamingOutputCallRequest() |
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request.response_parameters.append( |
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messages_pb2.ResponseParameters(size=_RESPONSE_PAYLOAD_SIZE)) |
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for _ in range(_NUM_STREAM_RESPONSES): |
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await call.write(request) |
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response = await call.read() |
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self.assertIsInstance(response, |
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messages_pb2.StreamingOutputCallResponse) |
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self.assertEqual(_RESPONSE_PAYLOAD_SIZE, len(response.payload.body)) |
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await call.done_writing() |
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self.assertEqual(grpc.StatusCode.OK, await call.code()) |
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async def test_unary_stream_error(self): |
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call = self._dummy_channel.unary_stream(_TEST_METHOD)(_REQUEST) |
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with self.assertRaises(aio.AioRpcError) as exception_context: |
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await call.try_connect() |
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rpc_error = exception_context.exception |
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self.assertEqual(grpc.StatusCode.UNAVAILABLE, rpc_error.code()) |
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async def test_stream_stream_error(self): |
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call = self._dummy_channel.stream_stream(_TEST_METHOD)() |
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with self.assertRaises(aio.AioRpcError) as exception_context: |
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await call.try_connect() |
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rpc_error = exception_context.exception |
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self.assertEqual(grpc.StatusCode.UNAVAILABLE, rpc_error.code()) |
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if __name__ == '__main__': |
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logging.basicConfig(level=logging.DEBUG) |
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unittest.main(verbosity=2) |
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