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57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
from test import support
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import unittest
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import select
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import os
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import sys
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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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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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