Merge commit 'e988fee1679536137b87d10e939eff5c1f27c8ab' as 'libs/libzmq'

libs/libzmq/tests/test_req_correlate.cpp

@@ -0,0 +1,120 @@
+/*
+    Copyright (c) 2007-2017 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "testutil.hpp"
+#include "testutil_unity.hpp"
+
+SETUP_TEARDOWN_TESTCONTEXT
+
+void test_req_correlate ()
+{
+    void *req = test_context_socket (ZMQ_REQ);
+    void *router = test_context_socket (ZMQ_ROUTER);
+
+    int enabled = 1;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_setsockopt (req, ZMQ_REQ_CORRELATE, &enabled, sizeof (int)));
+
+    char my_endpoint[MAX_SOCKET_STRING];
+    bind_loopback_ipv4 (router, my_endpoint, sizeof my_endpoint);
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (req, my_endpoint));
+
+    // Send a multi-part request.
+    s_send_seq (req, "ABC", "DEF", SEQ_END);
+
+    zmq_msg_t msg;
+    zmq_msg_init (&msg);
+
+    // Receive peer routing id
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&msg, router, 0));
+    TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&msg));
+    zmq_msg_t peer_id_msg;
+    zmq_msg_init (&peer_id_msg);
+    zmq_msg_copy (&peer_id_msg, &msg);
+
+    int more = 0;
+    size_t more_size = sizeof (more);
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_getsockopt (router, ZMQ_RCVMORE, &more, &more_size));
+    TEST_ASSERT_TRUE (more);
+
+    // Receive request id 1
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&msg, router, 0));
+    TEST_ASSERT_EQUAL_UINT (sizeof (uint32_t), zmq_msg_size (&msg));
+    const uint32_t req_id = *static_cast<uint32_t *> (zmq_msg_data (&msg));
+    zmq_msg_t req_id_msg;
+    zmq_msg_init (&req_id_msg);
+    zmq_msg_copy (&req_id_msg, &msg);
+
+    more = 0;
+    more_size = sizeof (more);
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_getsockopt (router, ZMQ_RCVMORE, &more, &more_size));
+    TEST_ASSERT_TRUE (more);
+
+    // Receive the rest.
+    s_recv_seq (router, 0, "ABC", "DEF", SEQ_END);
+
+    uint32_t bad_req_id = req_id + 1;
+
+    // Send back a bad reply: wrong req id, 0, data
+    zmq_msg_copy (&msg, &peer_id_msg);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_send (&msg, router, ZMQ_SNDMORE));
+    zmq_msg_init_data (&msg, &bad_req_id, sizeof (uint32_t), NULL, NULL);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_send (&msg, router, ZMQ_SNDMORE));
+    s_send_seq (router, 0, "DATA", SEQ_END);
+
+    // Send back a good reply: good req id, 0, data
+    zmq_msg_copy (&msg, &peer_id_msg);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_send (&msg, router, ZMQ_SNDMORE));
+    zmq_msg_copy (&msg, &req_id_msg);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_send (&msg, router, ZMQ_SNDMORE));
+    s_send_seq (router, 0, "GHI", SEQ_END);
+
+    // Receive reply. If bad reply got through, we wouldn't see
+    // this particular data.
+    s_recv_seq (req, "GHI", SEQ_END);
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&peer_id_msg));
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&req_id_msg));
+
+    test_context_socket_close_zero_linger (req);
+    test_context_socket_close_zero_linger (router);
+}
+
+int main ()
+{
+    setup_test_environment ();
+
+    UNITY_BEGIN ();
+    RUN_TEST (test_req_correlate);
+    return UNITY_END ();
+}