| from test import 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") |
| self.assertRaises(ValueError, select.select, [], [], [], -1) |
| |
| 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 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 support.verbose: |
| print(repr(line)) |
| if not line: |
| if support.verbose: |
| print('EOF') |
| break |
| continue |
| self.fail('Unexpected return values from select():', rfd, wfd, xfd) |
| p.close() |
| |
| def test_main(): |
| support.run_unittest(SelectTestCase) |
| support.reap_children() |
| |
| if __name__ == "__main__": |
| test_main() |