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
|
# Copyright (C) 2010 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.
import logging
import Queue
import sys
import thread
import threading
import time
import unittest
from webkitpy.common import array_stream
from webkitpy.common.system import outputcapture
from webkitpy.tool import mocktool
from webkitpy.layout_tests import run_webkit_tests
import message_broker
class TestThread(threading.Thread):
def __init__(self, started_queue, stopping_queue):
threading.Thread.__init__(self)
self._thread_id = None
self._started_queue = started_queue
self._stopping_queue = stopping_queue
self._timeout = False
self._timeout_queue = Queue.Queue()
self._exception_info = None
def id(self):
return self._thread_id
def getName(self):
return "worker-0"
def run(self):
self._covered_run()
def _covered_run(self):
# FIXME: this is a separate routine to work around a bug
# in coverage: see http://bitbucket.org/ned/coveragepy/issue/85.
self._thread_id = thread.get_ident()
try:
self._started_queue.put('')
msg = self._stopping_queue.get()
if msg == 'KeyboardInterrupt':
raise KeyboardInterrupt
elif msg == 'Exception':
raise ValueError()
elif msg == 'Timeout':
self._timeout = True
self._timeout_queue.get()
except:
self._exception_info = sys.exc_info()
def exception_info(self):
return self._exception_info
def next_timeout(self):
if self._timeout:
self._timeout_queue.put('done')
return time.time() - 10
return time.time()
def clear_next_timeout(self):
self._next_timeout = None
class TestHandler(logging.Handler):
def __init__(self, astream):
logging.Handler.__init__(self)
self._stream = astream
def emit(self, record):
self._stream.write(self.format(record))
class MultiThreadedBrokerTest(unittest.TestCase):
class MockTestRunner(object):
def __init__(self):
pass
def __del__(self):
pass
def update(self):
pass
def run_one_thread(self, msg):
runner = self.MockTestRunner()
port = None
options = mocktool.MockOptions(child_processes='1')
starting_queue = Queue.Queue()
stopping_queue = Queue.Queue()
broker = message_broker.MultiThreadedBroker(port, options)
broker._test_runner = runner
child_thread = TestThread(starting_queue, stopping_queue)
broker._workers['worker-0'] = message_broker._WorkerState('worker-0')
broker._workers['worker-0'].thread = child_thread
child_thread.start()
started_msg = starting_queue.get()
stopping_queue.put(msg)
return broker.run_message_loop()
def test_basic(self):
interrupted = self.run_one_thread('')
self.assertFalse(interrupted)
def test_interrupt(self):
self.assertRaises(KeyboardInterrupt, self.run_one_thread, 'KeyboardInterrupt')
def test_timeout(self):
oc = outputcapture.OutputCapture()
oc.capture_output()
interrupted = self.run_one_thread('Timeout')
self.assertFalse(interrupted)
oc.restore_output()
def test_exception(self):
self.assertRaises(ValueError, self.run_one_thread, 'Exception')
class Test(unittest.TestCase):
def test_find_thread_stack_found(self):
id, stack = sys._current_frames().items()[0]
found_stack = message_broker._find_thread_stack(id)
self.assertNotEqual(found_stack, None)
def test_find_thread_stack_not_found(self):
found_stack = message_broker._find_thread_stack(0)
self.assertEqual(found_stack, None)
def test_log_wedged_worker(self):
oc = outputcapture.OutputCapture()
oc.capture_output()
logger = message_broker._log
astream = array_stream.ArrayStream()
handler = TestHandler(astream)
logger.addHandler(handler)
starting_queue = Queue.Queue()
stopping_queue = Queue.Queue()
child_thread = TestThread(starting_queue, stopping_queue)
child_thread.start()
msg = starting_queue.get()
message_broker.log_wedged_worker(child_thread.getName(),
child_thread.id())
stopping_queue.put('')
child_thread.join(timeout=1.0)
self.assertFalse(astream.empty())
self.assertFalse(child_thread.isAlive())
oc.restore_output()
if __name__ == '__main__':
unittest.main()
|
