def setUp(self):
"""
Create a L{dns.DNSProtocol} with a deterministic clock.
"""
self.clock = task.Clock()
self.controller = TestTCPController()
self.proto = dns.DNSProtocol(self.controller)
self.proto.makeConnection(proto_helpers.StringTransport())
self.proto.callLater = self.clock.callLater
def buildProtocol(self, addr):
p = dns.DNSProtocol(self.controller)
p.factory = self
return p
