'A certificate\'s subject can be added as a CA to be sent to the client
with :py:obj:`Context.add_client_ca`.'

def test_one_add_client_ca(self):

    cacert = load_certificate(FILETYPE_PEM, root_cert_pem)
    cadesc = cacert.get_subject()
    def single_ca(ctx):
        ctx.add_client_ca(cacert)
        return [cadesc]
    self._check_client_ca_list(single_ca)
