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+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Tests clean exit of server/client on Python Interpreter exit/sigint.
+
+The tests in this module spawn a subprocess for each test case, the
+test is considered successful if it doesn't hang/timeout.
+"""
+
+import atexit
+import os
+import signal
+import six
+import subprocess
+import sys
+import threading
+import time
+import unittest
+
+from tests.unit import _exit_scenarios
+
+SCENARIO_FILE = os.path.abspath(os.path.join(
+ os.path.dirname(os.path.realpath(__file__)), '_exit_scenarios.py'))
+INTERPRETER = sys.executable
+BASE_COMMAND = [INTERPRETER, SCENARIO_FILE]
+BASE_SIGTERM_COMMAND = BASE_COMMAND + ['--wait_for_interrupt']
+
+INIT_TIME = 1.0
+
+
+processes = []
+process_lock = threading.Lock()
+
+
+# Make sure we attempt to clean up any
+# processes we may have left running
+def cleanup_processes():
+ with process_lock:
+ for process in processes:
+ try:
+ process.kill()
+ except Exception:
+ pass
+atexit.register(cleanup_processes)
+
+
+def interrupt_and_wait(process):
+ with process_lock:
+ processes.append(process)
+ time.sleep(INIT_TIME)
+ os.kill(process.pid, signal.SIGINT)
+ process.wait()
+
+
+def wait(process):
+ with process_lock:
+ processes.append(process)
+ process.wait()
+
+
+class ExitTest(unittest.TestCase):
+
+ def test_unstarted_server(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.UNSTARTED_SERVER],
+ stdout=sys.stdout, stderr=sys.stderr)
+ wait(process)
+
+ def test_unstarted_server_terminate(self):
+ process = subprocess.Popen(
+ BASE_SIGTERM_COMMAND + [_exit_scenarios.UNSTARTED_SERVER],
+ stdout=sys.stdout)
+ interrupt_and_wait(process)
+
+ def test_running_server(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.RUNNING_SERVER],
+ stdout=sys.stdout, stderr=sys.stderr)
+ wait(process)
+
+ def test_running_server_terminate(self):
+ process = subprocess.Popen(
+ BASE_SIGTERM_COMMAND + [_exit_scenarios.RUNNING_SERVER],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ def test_poll_connectivity_no_server(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.POLL_CONNECTIVITY_NO_SERVER],
+ stdout=sys.stdout, stderr=sys.stderr)
+ wait(process)
+
+ def test_poll_connectivity_no_server_terminate(self):
+ process = subprocess.Popen(
+ BASE_SIGTERM_COMMAND + [_exit_scenarios.POLL_CONNECTIVITY_NO_SERVER],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ def test_poll_connectivity(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.POLL_CONNECTIVITY],
+ stdout=sys.stdout, stderr=sys.stderr)
+ wait(process)
+
+ def test_poll_connectivity_terminate(self):
+ process = subprocess.Popen(
+ BASE_SIGTERM_COMMAND + [_exit_scenarios.POLL_CONNECTIVITY],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ def test_in_flight_unary_unary_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_UNARY_UNARY_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+ def test_in_flight_unary_stream_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_UNARY_STREAM_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ def test_in_flight_stream_unary_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_STREAM_UNARY_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+ def test_in_flight_stream_stream_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_STREAM_STREAM_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+ def test_in_flight_partial_unary_stream_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_PARTIAL_UNARY_STREAM_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ def test_in_flight_partial_stream_unary_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_PARTIAL_STREAM_UNARY_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+ @unittest.skipIf(six.PY2, 'https://github.com/grpc/grpc/issues/6999')
+ def test_in_flight_partial_stream_stream_call(self):
+ process = subprocess.Popen(
+ BASE_COMMAND + [_exit_scenarios.IN_FLIGHT_PARTIAL_STREAM_STREAM_CALL],
+ stdout=sys.stdout, stderr=sys.stderr)
+ interrupt_and_wait(process)
+
+
+if __name__ == '__main__':
+ unittest.main(verbosity=2)