'L{default.verifyHostKey} should return a L{Deferred} which fires with
C{1} when passed a host, IP, and key which already match the
known_hosts file it is supposed to check.'

def test_verifyOKKey(self):

    l = []
    default.verifyHostKey(self.fakeTransport, '4.3.2.1', sampleKey, "I    don't    care.").addCallback(l.append)
    self.assertEqual([1], l)
