1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
# 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
import grpc
from grpc.framework.foundation import logging_pool
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
SHUTDOWN_GRACE = 5.0
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()
@unittest.skip('https://github.com/grpc/grpc/issues/7311')
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)
class _ShutDownHandler(object):
def __init__(self):
self.seen_handler_grace = None
def shutdown_handler(self, handler_grace):
self.seen_handler_grace = handler_grace
class ShutdownHandlerTest(unittest.TestCase):
def test_shutdown_handler(self):
server = grpc.server(logging_pool.pool(1))
handler = _ShutDownHandler()
server.add_shutdown_handler(handler.shutdown_handler)
server.start()
server.stop(0, shutdown_handler_grace=SHUTDOWN_GRACE).wait()
self.assertEqual(SHUTDOWN_GRACE, handler.seen_handler_grace)
if __name__ == '__main__':
unittest.main(verbosity=2)
|
