'Fake L{IReactorUNIX.connectUNIX}, that logs the call and returns an
L{IConnector}.'

def connectUNIX(self, address, factory, timeout=30, checkPID=0):

    self.unixClients.append((address, factory, timeout, checkPID))
    conn = _FakeConnector(UNIXAddress(address))
    factory.startedConnecting(conn)
    self.connectors.append(conn)
    return conn
