Function CHECKED_IF

c/tests/connection_driver_test.cpp:319–326

    pn_delivery_t *rd = d.server.handler.delivery;
    d.server.handler.delivery = NULL;
    CHECKED_IF(rd) {
      CHECK(pn_delivery_current(rd));
      std::string rbuf(tag.size() * 2, 'x');
      CHECK(ssize_t(tag.size()) ==
            pn_link_recv(pn_delivery_link(rd), &rbuf[0], rbuf.size()));
      rbuf.resize(tag.size());
      CHECK(tag == rbuf);
    }
    pn_delivery_settle(rd);
  }
}