Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_kqueue.py @ 70817:dd775b1561ba

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Fix markup.
author Georg Brandl <georg@python.org>
date Tue, 14 Jun 2011 21:09:55 +0200
parents 3c9232a684ae
children 74c6afbb524a
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1 """
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2 Tests for kqueue wrapper.
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3 """
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4 import socket
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5 import errno
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6 import time
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7 import select
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8 import sys
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9 import unittest
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10
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11 from test import support
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12 if not hasattr(select, "kqueue"):
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13 raise unittest.SkipTest("test works only on BSD")
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14
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15 class TestKQueue(unittest.TestCase):
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16 def test_create_queue(self):
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17 kq = select.kqueue()
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18 self.assertTrue(kq.fileno() > 0, kq.fileno())
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19 self.assertTrue(not kq.closed)
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20 kq.close()
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21 self.assertTrue(kq.closed)
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22 self.assertRaises(ValueError, kq.fileno)
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23
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24 def test_create_event(self):
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25 from operator import lt, le, gt, ge
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26 fd = sys.stderr.fileno()
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27 ev = select.kevent(fd)
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28 other = select.kevent(1000)
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29 self.assertEqual(ev.ident, fd)
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30 self.assertEqual(ev.filter, select.KQ_FILTER_READ)
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31 self.assertEqual(ev.flags, select.KQ_EV_ADD)
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32 self.assertEqual(ev.fflags, 0)
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33 self.assertEqual(ev.data, 0)
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34 self.assertEqual(ev.udata, 0)
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35 self.assertEqual(ev, ev)
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36 self.assertNotEqual(ev, other)
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37 self.assertTrue(ev < other)
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38 self.assertTrue(other >= ev)
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39 for op in lt, le, gt, ge:
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40 self.assertRaises(TypeError, op, ev, None)
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41 self.assertRaises(TypeError, op, ev, 1)
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42 self.assertRaises(TypeError, op, ev, "ev")
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44 ev = select.kevent(fd, select.KQ_FILTER_WRITE)
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45 self.assertEqual(ev.ident, fd)
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46 self.assertEqual(ev.filter, select.KQ_FILTER_WRITE)
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47 self.assertEqual(ev.flags, select.KQ_EV_ADD)
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48 self.assertEqual(ev.fflags, 0)
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49 self.assertEqual(ev.data, 0)
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50 self.assertEqual(ev.udata, 0)
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51 self.assertEqual(ev, ev)
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52 self.assertNotEqual(ev, other)
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53
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54 ev = select.kevent(fd, select.KQ_FILTER_WRITE, select.KQ_EV_ONESHOT)
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55 self.assertEqual(ev.ident, fd)
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56 self.assertEqual(ev.filter, select.KQ_FILTER_WRITE)
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57 self.assertEqual(ev.flags, select.KQ_EV_ONESHOT)
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58 self.assertEqual(ev.fflags, 0)
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59 self.assertEqual(ev.data, 0)
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60 self.assertEqual(ev.udata, 0)
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61 self.assertEqual(ev, ev)
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62 self.assertNotEqual(ev, other)
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63
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64 ev = select.kevent(1, 2, 3, 4, 5, 6)
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65 self.assertEqual(ev.ident, 1)
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66 self.assertEqual(ev.filter, 2)
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67 self.assertEqual(ev.flags, 3)
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68 self.assertEqual(ev.fflags, 4)
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69 self.assertEqual(ev.data, 5)
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70 self.assertEqual(ev.udata, 6)
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71 self.assertEqual(ev, ev)
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72 self.assertNotEqual(ev, other)
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73
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74 bignum = sys.maxsize * 2 + 1
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75 ev = select.kevent(bignum, 1, 2, 3, sys.maxsize, bignum)
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76 self.assertEqual(ev.ident, bignum)
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77 self.assertEqual(ev.filter, 1)
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78 self.assertEqual(ev.flags, 2)
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79 self.assertEqual(ev.fflags, 3)
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80 self.assertEqual(ev.data, sys.maxsize)
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81 self.assertEqual(ev.udata, bignum)
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82 self.assertEqual(ev, ev)
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83 self.assertNotEqual(ev, other)
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84
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85 def test_queue_event(self):
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86 serverSocket = socket.socket()
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87 serverSocket.bind(('127.0.0.1', 0))
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88 serverSocket.listen(1)
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89 client = socket.socket()
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90 client.setblocking(False)
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91 try:
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92 client.connect(('127.0.0.1', serverSocket.getsockname()[1]))
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93 except socket.error as e:
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94 self.assertEqual(e.args[0], errno.EINPROGRESS)
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95 else:
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96 #raise AssertionError("Connect should have raised EINPROGRESS")
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97 pass # FreeBSD doesn't raise an exception here
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98 server, addr = serverSocket.accept()
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99
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100 if sys.platform.startswith("darwin"):
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101 flags = select.KQ_EV_ADD | select.KQ_EV_ENABLE
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102 else:
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103 flags = 0
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104
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105 kq = select.kqueue()
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106 kq2 = select.kqueue.fromfd(kq.fileno())
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107
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108 ev = select.kevent(server.fileno(),
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109 select.KQ_FILTER_WRITE,
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110 select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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111 kq.control([ev], 0)
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112 ev = select.kevent(server.fileno(),
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113 select.KQ_FILTER_READ,
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114 select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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115 kq.control([ev], 0)
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116 ev = select.kevent(client.fileno(),
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117 select.KQ_FILTER_WRITE,
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118 select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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119 kq2.control([ev], 0)
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120 ev = select.kevent(client.fileno(),
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121 select.KQ_FILTER_READ,
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122 select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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123 kq2.control([ev], 0)
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124
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125 events = kq.control(None, 4, 1)
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126 events = [(e.ident, e.filter, e.flags) for e in events]
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127 events.sort()
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128 self.assertEqual(events, [
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129 (client.fileno(), select.KQ_FILTER_WRITE, flags),
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130 (server.fileno(), select.KQ_FILTER_WRITE, flags)])
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131
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132 client.send(b"Hello!")
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133 server.send(b"world!!!")
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134
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135 # We may need to call it several times
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136 for i in range(10):
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137 events = kq.control(None, 4, 1)
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138 if len(events) == 4:
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139 break
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140 time.sleep(1.0)
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141 else:
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142 self.fail('timeout waiting for event notifications')
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143
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144 events = [(e.ident, e.filter, e.flags) for e in events]
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145 events.sort()
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146
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147 self.assertEqual(events, [
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148 (client.fileno(), select.KQ_FILTER_WRITE, flags),
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149 (client.fileno(), select.KQ_FILTER_READ, flags),
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150 (server.fileno(), select.KQ_FILTER_WRITE, flags),
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151 (server.fileno(), select.KQ_FILTER_READ, flags)])
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152
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153 # Remove completely client, and server read part
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154 ev = select.kevent(client.fileno(),
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155 select.KQ_FILTER_WRITE,
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156 select.KQ_EV_DELETE)
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157 kq.control([ev], 0)
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158 ev = select.kevent(client.fileno(),
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159 select.KQ_FILTER_READ,
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160 select.KQ_EV_DELETE)
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161 kq.control([ev], 0)
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162 ev = select.kevent(server.fileno(),
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163 select.KQ_FILTER_READ,
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164 select.KQ_EV_DELETE)
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165 kq.control([ev], 0, 0)
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166
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167 events = kq.control([], 4, 0.99)
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168 events = [(e.ident, e.filter, e.flags) for e in events]
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169 events.sort()
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170 self.assertEqual(events, [
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171 (server.fileno(), select.KQ_FILTER_WRITE, flags)])
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172
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173 client.close()
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174 server.close()
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175 serverSocket.close()
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176
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177 def testPair(self):
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178 kq = select.kqueue()
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179 a, b = socket.socketpair()
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180
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181 a.send(b'foo')
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182 event1 = select.kevent(a, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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183 event2 = select.kevent(b, select.KQ_FILTER_READ, select.KQ_EV_ADD | select.KQ_EV_ENABLE)
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184 r = kq.control([event1, event2], 1, 1)
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185 self.assertTrue(r)
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186 self.assertFalse(r[0].flags & select.KQ_EV_ERROR)
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187 self.assertEqual(b.recv(r[0].data), b'foo')
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188
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189 a.close()
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190 b.close()
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191 kq.close()
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192
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193 def test_main():
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194 support.run_unittest(TestKQueue)
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195
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196 if __name__ == "__main__":
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197 test_main()