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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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87 lines
3.2 KiB
87 lines
3.2 KiB
# Copyright 2019 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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"""Test for cancellation example.""" |
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import contextlib |
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import os |
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import signal |
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import socket |
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import subprocess |
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import unittest |
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_BINARY_DIR = os.path.realpath( |
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os.path.join(os.path.dirname(os.path.abspath(__file__)), '..')) |
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_SERVER_PATH = os.path.join(_BINARY_DIR, 'server') |
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_CLIENT_PATH = os.path.join(_BINARY_DIR, 'client') |
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@contextlib.contextmanager |
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def _get_port(): |
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sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) |
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1) |
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if sock.getsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT) == 0: |
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raise RuntimeError("Failed to set SO_REUSEPORT.") |
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sock.bind(('', 0)) |
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try: |
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yield sock.getsockname()[1] |
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finally: |
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sock.close() |
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def _start_client(server_port, |
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desired_string, |
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ideal_distance, |
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interesting_distance=None): |
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interesting_distance_args = () if interesting_distance is None else ( |
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'--show-inferior', interesting_distance) |
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return subprocess.Popen((_CLIENT_PATH, desired_string, '--server', |
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'localhost:{}'.format(server_port), |
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'--ideal-distance', |
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str(ideal_distance)) + interesting_distance_args) |
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class CancellationExampleTest(unittest.TestCase): |
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def test_successful_run(self): |
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with _get_port() as test_port: |
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server_process = subprocess.Popen((_SERVER_PATH, '--port', |
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str(test_port))) |
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try: |
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client_process = _start_client(test_port, 'aa', 0) |
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client_return_code = client_process.wait() |
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self.assertEqual(0, client_return_code) |
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self.assertIsNone(server_process.poll()) |
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finally: |
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server_process.kill() |
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server_process.wait() |
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def test_graceful_sigint(self): |
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with _get_port() as test_port: |
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server_process = subprocess.Popen((_SERVER_PATH, '--port', |
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str(test_port))) |
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try: |
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client_process1 = _start_client(test_port, 'aaaaaaaaaa', 0) |
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client_process1.send_signal(signal.SIGINT) |
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client_process1.wait() |
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client_process2 = _start_client(test_port, 'aa', 0) |
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client_return_code = client_process2.wait() |
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self.assertEqual(0, client_return_code) |
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self.assertIsNone(server_process.poll()) |
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finally: |
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server_process.kill() |
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server_process.wait() |
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if __name__ == '__main__': |
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unittest.main(verbosity=2)
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