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from tests.patcher_test import ProcessBase
class ForkTest(ProcessBase):
def test_simple(self):
newmod = '''
import eventlet
import os
import sys
import signal
mydir = %r
signal_file = os.path.join(mydir, "output.txt")
pid = os.fork()
if (pid != 0):
eventlet.Timeout(10)
try:
port = None
while True:
try:
contents = open(signal_file, "rb").read()
port = int(contents.split()[0])
break
except (IOError, IndexError, ValueError, TypeError):
eventlet.sleep(0.1)
eventlet.connect(('127.0.0.1', port))
while True:
try:
contents = open(signal_file, "rb").read()
result = contents.split()[1]
break
except (IOError, IndexError):
eventlet.sleep(0.1)
print 'result', result
finally:
os.kill(pid, signal.SIGTERM)
else:
try:
s = eventlet.listen(('', 0))
fd = open(signal_file, "wb")
fd.write(str(s.getsockname()[1]))
fd.write("\\n")
fd.flush()
s.accept()
fd.write("done")
fd.flush()
finally:
fd.close()
'''
self.write_to_tempfile("newmod", newmod % self.tempdir)
output, lines = self.launch_subprocess('newmod.py')
self.assertEqual(lines[0], "result done", output)
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