1 from test import test_support

     2 import unittest

     3 import select

     4 import os

     5 import sys

     6 

     7 class SelectTestCase(unittest.TestCase):

     8 

     9     class Nope:

    10         pass

    11 

    12     class Almost:

    13         def fileno(self):

    14             return 'fileno'

    15 

    16     def test_error_conditions(self):

    17         self.assertRaises(TypeError, select.select, 1, 2, 3)

    18         self.assertRaises(TypeError, select.select, [self.Nope()], [], [])

    19         self.assertRaises(TypeError, select.select, [self.Almost()], [], [])

    20         self.assertRaises(TypeError, select.select, [], [], [], "not a number")

    21 

    22     def test_select(self):

    23         if sys.platform[:3] in ('win', 'mac', 'os2', 'riscos'):

    24             if test_support.verbose:

    25                 print "Can't test select easily on", sys.platform

    26             return

    27         cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'

    28         p = os.popen(cmd, 'r')

    29         for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:

    30             if test_support.verbose:

    31                 print 'timeout =', tout

    32             rfd, wfd, xfd = select.select([p], [], [], tout)

    33             if (rfd, wfd, xfd) == ([], [], []):

    34                 continue

    35             if (rfd, wfd, xfd) == ([p], [], []):

    36                 line = p.readline()

    37                 if test_support.verbose:

    38                     print repr(line)

    39                 if not line:

    40                     if test_support.verbose:

    41                         print 'EOF'

    42                     break

    43                 continue

    44             self.fail('Unexpected return values from select():', rfd, wfd, xfd)

    45         p.close()

    46 

    47 

    48 def test_main():

    49     test_support.run_unittest(SelectTestCase)

    50     test_support.reap_children()

    51 

    52 if __name__ == "__main__":

    53     test_main()