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cpython/Lib/test/test_signal.py
Barry Warsaw 5e056bbb76 test_rotor.py: New test of the rotor module.
test_*: converted to the new test harness.  GvR note!  test_signal.py
works interatively (i.e. when verbose=1) but does not work inside the
test harness.  It must be a timing issue, but I haven't figured it out
yet.
1996-12-23 23:39:42 +00:00

64 lines
1.1 KiB
Python

# Test the signal module
from test_support import verbose
import signal
import os
if verbose:
x = '-x'
else:
x = '+x'
pid = os.getpid()
# Shell script that will send us asynchronous signals
script = """
(
set %(x)s
sleep 2
kill -5 %(pid)d
sleep 2
kill -2 %(pid)d
sleep 2
kill -3 %(pid)d
) &
""" % vars()
def handlerA(*args):
if verbose:
print "handlerA", args
HandlerBCalled = "HandlerBCalled" # Exception
def handlerB(*args):
if verbose:
print "handlerB", args
raise HandlerBCalled, args
signal.alarm(20) # Entire test lasts at most 20 sec.
signal.signal(5, handlerA)
signal.signal(2, handlerB)
signal.signal(3, signal.SIG_IGN)
signal.signal(signal.SIGALRM, signal.default_int_handler)
os.system(script)
print "starting pause() loop..."
try:
while 1:
if verbose:
print "call pause()..."
try:
signal.pause()
if verbose:
print "pause() returned"
except HandlerBCalled:
if verbose:
print "HandlerBCalled exception caught"
else:
pass
except KeyboardInterrupt:
if verbose:
print "KeyboardInterrupt (assume the alarm() went off)"