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Fix #8405 for slow buildbots. Remove the sleep on startup and move the 

pipe communication into a loop to retry in case a buildbot gets even slower.
This commit is contained in:
Brian Curtin 2010-05-28 15:49:21 +00:00
parent b41afb5544
commit 83cba05c30
1 changed files with 16 additions and 11 deletions
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27
Lib/test/test_os.py
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@ -706,17 +706,22 @@ class Win32KillTests(unittest.TestCase):
stderr=subprocess.PIPE,
stdin=subprocess.PIPE)
# Let the process start up (See #3137)
time.sleep(0.5)
# Create a string buffer to store the result of stdout from the pipe
buf = ctypes.create_string_buffer(len(msg))
# Obtain the text currently in proc.stdout
# Bytes read/avail/left are left as NULL and unused
rslt = PeekNamedPipe(msvcrt.get_osfhandle(proc.stdout.fileno()), buf,
ctypes.sizeof(buf), None, None, None)
self.assertNotEqual(rslt, 0, "PeekNamedPipe failed")
self.assertEqual(msg, buf.value)
count, max = 0, 100
while count < max and proc.poll() is None:
# Create a string buffer to store the result of stdout from the pipe
buf = ctypes.create_string_buffer(len(msg))
# Obtain the text currently in proc.stdout
# Bytes read/avail/left are left as NULL and unused
rslt = PeekNamedPipe(msvcrt.get_osfhandle(proc.stdout.fileno()),
buf, ctypes.sizeof(buf), None, None, None)
self.assertNotEqual(rslt, 0, "PeekNamedPipe failed")
if buf.value:
self.assertEqual(msg, buf.value)
break
time.sleep(0.1)
count += 1
else:
self.fail("Did not receive communication from the subprocess")
os.kill(proc.pid, sig)
self.assertEqual(proc.wait(), sig)