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| from test import test_support
| import unittest
| import select
| import os
| import sys
|
| @unittest.skipIf(sys.platform[:3] in ('win', 'os2', 'riscos'),
| "can't easily test on this system")
| class SelectTestCase(unittest.TestCase):
|
| class Nope:
| pass
|
| class Almost:
| def fileno(self):
| return 'fileno'
|
| def test_error_conditions(self):
| self.assertRaises(TypeError, select.select, 1, 2, 3)
| self.assertRaises(TypeError, select.select, [self.Nope()], [], [])
| self.assertRaises(TypeError, select.select, [self.Almost()], [], [])
| self.assertRaises(TypeError, select.select, [], [], [], "not a number")
|
| def test_returned_list_identity(self):
| # See issue #8329
| r, w, x = select.select([], [], [], 1)
| self.assertIsNot(r, w)
| self.assertIsNot(r, x)
| self.assertIsNot(w, x)
|
| def test_select(self):
| cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done'
| p = os.popen(cmd, 'r')
| for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
| if test_support.verbose:
| print 'timeout =', tout
| rfd, wfd, xfd = select.select([p], [], [], tout)
| if (rfd, wfd, xfd) == ([], [], []):
| continue
| if (rfd, wfd, xfd) == ([p], [], []):
| line = p.readline()
| if test_support.verbose:
| print repr(line)
| if not line:
| if test_support.verbose:
| print 'EOF'
| break
| continue
| self.fail('Unexpected return values from select():', rfd, wfd, xfd)
| p.close()
|
| # Issue 16230: Crash on select resized list
| def test_select_mutated(self):
| a = []
| class F:
| def fileno(self):
| del a[-1]
| return sys.__stdout__.fileno()
| a[:] = [F()] * 10
| self.assertEqual(select.select([], a, []), ([], a[:5], []))
|
| def test_main():
| test_support.run_unittest(SelectTestCase)
| test_support.reap_children()
|
| if __name__ == "__main__":
| test_main()
|
|
