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Speed up test_io by >2x by reducing the sleep time using setitimer instead of

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alarm for the signal tests.
This commit is contained in:
Gregory P. Smith 2012-06-23 23:46:37 -07:00
parent 7349eb27d7
commit 8150492f11
1 changed files with 5 additions and 5 deletions
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10
Lib/test/test_io.py
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@ -2868,7 +2868,7 @@ class SignalsTest(unittest.TestCase):
try:
wio = self.io.open(w, **fdopen_kwargs)
t.start()
signal.alarm(1)
signal.setitimer(signal.ITIMER_REAL, 0.1)
# Fill the pipe enough that the write will be blocking.
# It will be interrupted by the timer armed above. Since the
# other thread has read one byte, the low-level write will
@ -2912,7 +2912,7 @@ class SignalsTest(unittest.TestCase):
r, w = os.pipe()
wio = self.io.open(w, **fdopen_kwargs)
try:
signal.alarm(1)
signal.setitimer(signal.ITIMER_REAL, 0.1)
# Either the reentrant call to wio.write() fails with RuntimeError,
# or the signal handler raises ZeroDivisionError.
with self.assertRaises((ZeroDivisionError, RuntimeError)) as cm:
@ -2947,7 +2947,7 @@ class SignalsTest(unittest.TestCase):
try:
rio = self.io.open(r, **fdopen_kwargs)
os.write(w, b"foo")
signal.alarm(1)
signal.setitimer(signal.ITIMER_REAL, 0.1)
# Expected behaviour:
# - first raw read() returns partial b"foo"
# - second raw read() returns EINTR
@ -2991,13 +2991,13 @@ class SignalsTest(unittest.TestCase):
t.daemon = True
def alarm1(sig, frame):
signal.signal(signal.SIGALRM, alarm2)
signal.alarm(1)
signal.setitimer(signal.ITIMER_REAL, 0.1)
def alarm2(sig, frame):
t.start()
signal.signal(signal.SIGALRM, alarm1)
try:
wio = self.io.open(w, **fdopen_kwargs)
signal.alarm(1)
signal.setitimer(signal.ITIMER_REAL, 0.1)
# Expected behaviour:
# - first raw write() is partial (because of the limited pipe buffer
# and the first alarm)