1 from test import test_support 2 import unittest 3 import select 4 import os 5 import sys 6 7 @unittest.skipIf(sys.platform[:3] in ('win', 'os2', 'riscos'), 8 "can't easily test on this system") 9 class SelectTestCase(unittest.TestCase): 10 11 class Nope: 12 pass 13 14 class Almost: 15 def fileno(self): 16 return 'fileno' 17 18 def test_error_conditions(self): 19 self.assertRaises(TypeError, select.select, 1, 2, 3) 20 self.assertRaises(TypeError, select.select, [self.Nope()], [], []) 21 self.assertRaises(TypeError, select.select, [self.Almost()], [], []) 22 self.assertRaises(TypeError, select.select, [], [], [], "not a number") 23 24 def test_returned_list_identity(self): 25 # See issue #8329 26 r, w, x = select.select([], [], [], 1) 27 self.assertIsNot(r, w) 28 self.assertIsNot(r, x) 29 self.assertIsNot(w, x) 30 31 def test_select(self): 32 cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do echo testing...; sleep 1; done' 33 p = os.popen(cmd, 'r') 34 for tout in (0, 1, 2, 4, 8, 16) + (None,)*10: 35 if test_support.verbose: 36 print 'timeout =', tout 37 rfd, wfd, xfd = select.select([p], [], [], tout) 38 if (rfd, wfd, xfd) == ([], [], []): 39 continue 40 if (rfd, wfd, xfd) == ([p], [], []): 41 line = p.readline() 42 if test_support.verbose: 43 print repr(line) 44 if not line: 45 if test_support.verbose: 46 print 'EOF' 47 break 48 continue 49 self.fail('Unexpected return values from select():', rfd, wfd, xfd) 50 p.close() 51 52 53 def test_main(): 54 test_support.run_unittest(SelectTestCase) 55 test_support.reap_children() 56 57 if __name__ == "__main__": 58 test_main() 59
