mirror of
https://github.com/python/cpython.git
synced 2025-10-29 04:35:05 +00:00
64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
# Testing select module
|
|
from test_support import verbose
|
|
import select
|
|
import os
|
|
|
|
# test some known error conditions
|
|
try:
|
|
rfd, wfd, xfd = select.select(1, 2, 3)
|
|
except TypeError:
|
|
pass
|
|
else:
|
|
print 'expected TypeError exception not raised'
|
|
|
|
class Nope:
|
|
pass
|
|
|
|
class Almost:
|
|
def fileno(self):
|
|
return 'fileno'
|
|
|
|
try:
|
|
rfd, wfd, xfd = select.select([Nope()], [], [])
|
|
except TypeError:
|
|
pass
|
|
else:
|
|
print 'expected TypeError exception not raised'
|
|
|
|
try:
|
|
rfd, wfd, xfd = select.select([Almost()], [], [])
|
|
except TypeError:
|
|
pass
|
|
else:
|
|
print 'expected TypeError exception not raised'
|
|
|
|
|
|
def test():
|
|
import sys
|
|
if sys.platform[:3] in ('win', 'mac', 'os2'):
|
|
if verbose:
|
|
print "Can't test select easily on", sys.platform
|
|
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 verbose:
|
|
print 'timeout =', tout
|
|
rfd, wfd, xfd = select.select([p], [], [], tout)
|
|
## print rfd, wfd, xfd
|
|
if (rfd, wfd, xfd) == ([], [], []):
|
|
continue
|
|
if (rfd, wfd, xfd) == ([p], [], []):
|
|
line = p.readline()
|
|
if verbose:
|
|
print `line`
|
|
if not line:
|
|
if verbose:
|
|
print 'EOF'
|
|
break
|
|
continue
|
|
print 'Heh?'
|
|
p.close()
|
|
|
|
test()
|
|
|