Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_select.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents ca123f240ba9
children 5e31d381fa47
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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b9fcfb99a3e5 * test_select.py: (some) tests for built-in select module
Guido van Rossum <guido@python.org>
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1 # Testing select module
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2 from test_support import verbose
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3 import select
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4 import os
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5
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6 # test some known error conditions
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7 try:
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8 rfd, wfd, xfd = select.select(1, 2, 3)
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9 except TypeError:
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10 pass
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11 else:
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12 print 'expected TypeError exception not raised'
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13
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14 class Nope:
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15 pass
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16
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17 class Almost:
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18 def fileno(self):
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19 return 'fileno'
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20
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21 try:
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22 rfd, wfd, xfd = select.select([Nope()], [], [])
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23 except TypeError:
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24 pass
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25 else:
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26 print 'expected TypeError exception not raised'
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27
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28 try:
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29 rfd, wfd, xfd = select.select([Almost()], [], [])
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30 except TypeError:
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31 pass
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32 else:
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33 print 'expected TypeError exception not raised'
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34
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35
b9fcfb99a3e5 * test_select.py: (some) tests for built-in select module
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36 def test():
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37 import sys
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38 if sys.platform[:3] in ('win', 'mac'):
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39 if verbose:
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40 print "Can't test select easily on", sys.platform
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41 return
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42 cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
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43 p = os.popen(cmd, 'r')
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44 for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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45 if verbose:
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46 print 'timeout =', tout
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47 rfd, wfd, xfd = select.select([p], [], [], tout)
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48 ## print rfd, wfd, xfd
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49 if (rfd, wfd, xfd) == ([], [], []):
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50 continue
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51 if (rfd, wfd, xfd) == ([p], [], []):
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52 line = p.readline()
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53 if verbose:
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54 print `line`
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55 if not line:
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56 if verbose:
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57 print 'EOF'
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58 break
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59 continue
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60 print 'Heh?'
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61 p.close()
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62
b9fcfb99a3e5 * test_select.py: (some) tests for built-in select module
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63 test()
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64