def test_acceptDescriptorInheritance(self):
"""
If a L{TwistdSlaveProcess} specifies some file descriptors to be
inherited, they should be inherited by the subprocess.
"""
dspm = DelayedStartupProcessMonitor()
dspm.reactor = InMemoryProcessSpawner()
# Most arguments here will be ignored, so these are bogus values.
slave = TwistdSlaveProcess(
twistd = "bleh",
tapname = "caldav",
configFile = "/does/not/exist",
id = 10,
interfaces = '127.0.0.1',
inheritFDs = [3, 7],
inheritSSLFDs = [19, 25],
)
dspm.addProcessObject(slave, {})
dspm.startService()
self.addCleanup(dspm.consistency.cancel)
# We can easily stub out spawnProcess, because caldav calls it, but a
# bunch of callLater calls are buried in procmon itself, so we need to
# use the real clock.
oneProcessTransport = yield dspm.reactor.waitForOneProcess()
self.assertEquals(oneProcessTransport.childFDs,
{0: 'w', 1: 'r', 2: 'r',
3: 3, 7: 7,
19: 19, 25: 25})
def test_metaDescriptorInheritance(self):
"""
If a L{TwistdSlaveProcess} specifies a meta-file-descriptor to be
inherited, it should be inherited by the subprocess, and a
configuration argument should be passed that indicates to the
subprocess.
"""
dspm = DelayedStartupProcessMonitor()
dspm.reactor = InMemoryProcessSpawner()
class FakeFD:
def __init__(self, n):
self.fd = n
def fileno(self):
return self.fd
class FakeDispatcher:
n = 3
def addSocket(self):
self.n += 1
return FakeFD(self.n)
# Most arguments here will be ignored, so these are bogus values.
slave = TwistdSlaveProcess(
twistd = "bleh",
tapname = "caldav",
configFile = "/does/not/exist",
id = 10,
interfaces = '127.0.0.1',
metaSocket = FakeDispatcher().addSocket()
)
dspm.addProcessObject(slave, {})
dspm.startService()
self.addCleanup(dspm.consistency.cancel)
oneProcessTransport = yield dspm.reactor.waitForOneProcess()
self.assertIn("MetaFD=4", oneProcessTransport.args)
self.assertEquals(
oneProcessTransport.args[oneProcessTransport.args.index("MetaFD=4")-1],
'-o',
"MetaFD argument was not passed as an option"
)
self.assertEquals(oneProcessTransport.childFDs,
{0: 'w', 1: 'r', 2: 'r',
4: 4})
