'Test that a challenge/response sequence can be aborted by the client.'

def test_abortAuthentication(self):

    loginArgs = []
    self.server.portal = self.portalFactory(loginArgs)
    self.server.dataReceived('EHLO\r\n')
    self.server.dataReceived('AUTH    LOGIN\r\n')
    self.assertServerResponse('*\r\n', ['501    Authentication    aborted'])
