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21d29c377b
Thanks to the PEP 3151, select.error (which is just an alias to OSError) has now an error attribute.
70 lines
2.2 KiB
Python
70 lines
2.2 KiB
Python
import errno
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import os
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import select
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import sys
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import unittest
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from test import support
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@unittest.skipIf(sys.platform[:3] in ('win', 'os2', 'riscos'),
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"can't easily test on this system")
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class SelectTestCase(unittest.TestCase):
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class Nope:
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pass
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class Almost:
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def fileno(self):
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return 'fileno'
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def test_error_conditions(self):
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self.assertRaises(TypeError, select.select, 1, 2, 3)
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self.assertRaises(TypeError, select.select, [self.Nope()], [], [])
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self.assertRaises(TypeError, select.select, [self.Almost()], [], [])
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self.assertRaises(TypeError, select.select, [], [], [], "not a number")
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self.assertRaises(ValueError, select.select, [], [], [], -1)
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def test_errno(self):
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with open(__file__, 'rb') as fp:
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fd = fp.fileno()
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fp.close()
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try:
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select.select([fd], [], [])
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except select.error as err:
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self.assertEqual(err.errno, errno.EBADF)
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else:
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self.fail("exception not raised")
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def test_returned_list_identity(self):
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# See issue #8329
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r, w, x = select.select([], [], [], 1)
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self.assertIsNot(r, w)
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self.assertIsNot(r, x)
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self.assertIsNot(w, x)
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def test_select(self):
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cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
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p = os.popen(cmd, 'r')
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for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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if support.verbose:
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print('timeout =', tout)
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rfd, wfd, xfd = select.select([p], [], [], tout)
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if (rfd, wfd, xfd) == ([], [], []):
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continue
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if (rfd, wfd, xfd) == ([p], [], []):
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line = p.readline()
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if support.verbose:
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print(repr(line))
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if not line:
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if support.verbose:
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print('EOF')
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break
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continue
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self.fail('Unexpected return values from select():', rfd, wfd, xfd)
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p.close()
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def test_main():
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support.run_unittest(SelectTestCase)
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support.reap_children()
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if __name__ == "__main__":
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test_main()
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