def createSystem(self):
"""
Create and return a brand new L{MemoryIOSystem}.
The L{MemoryIOSystem} knows how to open new tunnel devices.
@return: The newly created I/O system object.
@rtype: L{MemoryIOSystem}
"""
system = MemoryIOSystem()
system.registerSpecialDevice(Tunnel._DEVICE_NAME, Tunnel)
return system
def setUp(self):
"""
Create an in-memory I/O system and set up a L{TuntapPort} against it.
"""
self.name = b"tun0"
self.system = MemoryIOSystem()
self.system.registerSpecialDevice(Tunnel._DEVICE_NAME, Tunnel)
self.protocol = self.factory.buildProtocol(
TunnelAddress(self.helper.TUNNEL_TYPE, self.name))
self.reactor = FSSetClock()
self.port = TuntapPort(self.name,
self.protocol,
reactor=self.reactor,
system=self.system)
