Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_select.py @ 79691:05c8928362ee

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Merge __next__ method link fixes with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Fri, 12 Oct 2012 13:46:37 +0300
parents 9ba1f113c3ec
children 823898ef37ce
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8bbfb24d4824 Issue #12367: Add a test on error attribute of select.error
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1 import errno
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2 import os
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3 import select
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4 import sys
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5 import unittest
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6 from test import support
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7
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8 @unittest.skipIf((sys.platform[:3]=='win') or (sys.platform=='riscos'),
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9 "can't easily test on this system")
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10 class SelectTestCase(unittest.TestCase):
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11
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12 class Nope:
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13 pass
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14
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15 class Almost:
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16 def fileno(self):
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17 return 'fileno'
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18
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19 def test_error_conditions(self):
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20 self.assertRaises(TypeError, select.select, 1, 2, 3)
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21 self.assertRaises(TypeError, select.select, [self.Nope()], [], [])
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22 self.assertRaises(TypeError, select.select, [self.Almost()], [], [])
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23 self.assertRaises(TypeError, select.select, [], [], [], "not a number")
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24 self.assertRaises(ValueError, select.select, [], [], [], -1)
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26 # Issue #12367: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/155606
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27 @unittest.skipIf(sys.platform.startswith('freebsd'),
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28 'skip because of a FreeBSD bug: kern/155606')
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29 def test_errno(self):
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30 with open(__file__, 'rb') as fp:
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31 fd = fp.fileno()
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32 fp.close()
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33 try:
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34 select.select([fd], [], [], 0)
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35 except select.error as err:
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36 self.assertEqual(err.errno, errno.EBADF)
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37 else:
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38 self.fail("exception not raised")
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39
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40 def test_returned_list_identity(self):
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41 # See issue #8329
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42 r, w, x = select.select([], [], [], 1)
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43 self.assertIsNot(r, w)
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44 self.assertIsNot(r, x)
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45 self.assertIsNot(w, x)
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46
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47 def test_select(self):
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48 cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
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49 p = os.popen(cmd, 'r')
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50 for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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51 if support.verbose:
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52 print('timeout =', tout)
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53 rfd, wfd, xfd = select.select([p], [], [], tout)
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54 if (rfd, wfd, xfd) == ([], [], []):
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55 continue
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56 if (rfd, wfd, xfd) == ([p], [], []):
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57 line = p.readline()
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58 if support.verbose:
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59 print(repr(line))
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60 if not line:
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61 if support.verbose:
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62 print('EOF')
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63 break
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64 continue
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65 self.fail('Unexpected return values from select():', rfd, wfd, xfd)
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66 p.close()
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67
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68 def test_main():
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69 support.run_unittest(SelectTestCase)
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70 support.reap_children()
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71
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72 if __name__ == "__main__":
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Christian Heimes <christian@cheimes.de>
parents: 42632
diff changeset
73 test_main()