Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_select.py @ 78069:a8aa77458e12 3.2

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Add c_size_t and c_ssize_t to the ctypes summary table.
author Antoine Pitrou <solipsis@pitrou.net>
date Thu, 12 Jul 2012 20:31:50 +0200
parents 1f7506f23771
children 87ccf2635ad7 3982be773b54
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1 from test import support
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2 import unittest
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3 import select
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4 import os
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5 import sys
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6
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7 @unittest.skipIf(sys.platform[:3] in ('win', 'os2', 'riscos'),
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8 "can't easily test on this system")
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9 class SelectTestCase(unittest.TestCase):
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10
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11 class Nope:
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12 pass
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13
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14 class Almost:
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15 def fileno(self):
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16 return 'fileno'
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18 def test_error_conditions(self):
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19 self.assertRaises(TypeError, select.select, 1, 2, 3)
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20 self.assertRaises(TypeError, select.select, [self.Nope()], [], [])
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21 self.assertRaises(TypeError, select.select, [self.Almost()], [], [])
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22 self.assertRaises(TypeError, select.select, [], [], [], "not a number")
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23
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24 def test_returned_list_identity(self):
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25 # See issue #8329
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26 r, w, x = select.select([], [], [], 1)
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27 self.assertIsNot(r, w)
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28 self.assertIsNot(r, x)
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29 self.assertIsNot(w, x)
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31 def test_select(self):
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32 cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
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33 p = os.popen(cmd, 'r')
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34 for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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35 if support.verbose:
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36 print('timeout =', tout)
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37 rfd, wfd, xfd = select.select([p], [], [], tout)
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38 if (rfd, wfd, xfd) == ([], [], []):
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39 continue
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40 if (rfd, wfd, xfd) == ([p], [], []):
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41 line = p.readline()
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42 if support.verbose:
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43 print(repr(line))
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44 if not line:
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45 if support.verbose:
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46 print('EOF')
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47 break
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48 continue
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49 self.fail('Unexpected return values from select():', rfd, wfd, xfd)
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50 p.close()
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51
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52 def test_main():
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53 support.run_unittest(SelectTestCase)
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54 support.reap_children()
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55
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56 if __name__ == "__main__":
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57 test_main()