cpython/Lib/test/test_select.py

65 lines
2.0 KiB
Python
Raw Normal View History

from test import test_support
import unittest
import select
import os
import sys
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):
2010-04-20 18:02:36 -03:00
if sys.platform[:3] in ('win', 'mac', 'os2'):
if test_support.verbose:
print "can't easily test on this system"
return
# See issue #8329
r, w, x = select.select([], [], [], 1)
2010-04-07 17:40:30 -03:00
self.assertFalse(r is w)
self.assertFalse(r is x)
self.assertFalse(w is x)
def test_select(self):
2010-04-07 17:40:30 -03:00
if sys.platform[:3] in ('win', 'mac', 'os2'):
if test_support.verbose:
print "can't easily test on this system"
return
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()