1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
# 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'):
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()
|
