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() | |
def test_main(): | |
test_support.run_unittest(SelectTestCase) | |
test_support.reap_children() | |
if __name__ == "__main__": | |
test_main() |