Initial ZMQ bindings.

vendor/ZMQ/tests/test_spec_rep.cpp

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+/*
+    Copyright (c) 2007-2016 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"
+
+#include <stdlib.h>
+
+SETUP_TEARDOWN_TESTCONTEXT
+
+char connect_address[MAX_SOCKET_STRING];
+
+void test_fair_queue_in (const char *bind_address_)
+{
+    void *rep = test_context_socket (ZMQ_REP);
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (rep, bind_address_));
+    size_t len = MAX_SOCKET_STRING;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_getsockopt (rep, ZMQ_LAST_ENDPOINT, connect_address, &len));
+
+    const size_t services = 5;
+    void *reqs[services];
+    for (size_t peer = 0; peer < services; ++peer) {
+        reqs[peer] = test_context_socket (ZMQ_REQ);
+
+        TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (reqs[peer], connect_address));
+    }
+
+    msleep (SETTLE_TIME);
+
+    s_send_seq (reqs[0], "A", SEQ_END);
+    s_recv_seq (rep, "A", SEQ_END);
+    s_send_seq (rep, "A", SEQ_END);
+    s_recv_seq (reqs[0], "A", SEQ_END);
+
+    s_send_seq (reqs[0], "A", SEQ_END);
+    s_recv_seq (rep, "A", SEQ_END);
+    s_send_seq (rep, "A", SEQ_END);
+    s_recv_seq (reqs[0], "A", SEQ_END);
+
+    // TODO: following test fails randomly on some boxes
+#ifdef SOMEONE_FIXES_THIS
+    // send N requests
+    for (size_t peer = 0; peer < services; ++peer) {
+        char *str = strdup ("A");
+        str[0] += peer;
+        s_send_seq (reqs[peer], str, SEQ_END);
+        free (str);
+    }
+
+    // handle N requests
+    for (size_t peer = 0; peer < services; ++peer) {
+        char *str = strdup ("A");
+        str[0] += peer;
+        //  Test fails here
+        s_recv_seq (rep, str, SEQ_END);
+        s_send_seq (rep, str, SEQ_END);
+        s_recv_seq (reqs[peer], str, SEQ_END);
+        free (str);
+    }
+#endif
+    test_context_socket_close_zero_linger (rep);
+
+    for (size_t peer = 0; peer < services; ++peer)
+        test_context_socket_close_zero_linger (reqs[peer]);
+}
+
+void test_envelope (const char *bind_address_)
+{
+    void *rep = test_context_socket (ZMQ_REP);
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (rep, bind_address_));
+    size_t len = MAX_SOCKET_STRING;
+    TEST_ASSERT_SUCCESS_ERRNO (
+      zmq_getsockopt (rep, ZMQ_LAST_ENDPOINT, connect_address, &len));
+
+    void *dealer = test_context_socket (ZMQ_DEALER);
+
+    TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (dealer, connect_address));
+
+    // minimal envelope
+    s_send_seq (dealer, 0, "A", SEQ_END);
+    s_recv_seq (rep, "A", SEQ_END);
+    s_send_seq (rep, "A", SEQ_END);
+    s_recv_seq (dealer, 0, "A", SEQ_END);
+
+    // big envelope
+    s_send_seq (dealer, "X", "Y", 0, "A", SEQ_END);
+    s_recv_seq (rep, "A", SEQ_END);
+    s_send_seq (rep, "A", SEQ_END);
+    s_recv_seq (dealer, "X", "Y", 0, "A", SEQ_END);
+
+    test_context_socket_close_zero_linger (rep);
+    test_context_socket_close_zero_linger (dealer);
+}
+
+const char bind_inproc[] = "inproc://a";
+const char bind_tcp[] = "tcp://127.0.0.1:*";
+
+void test_fair_queue_in_inproc ()
+{
+    test_fair_queue_in (bind_inproc);
+}
+
+void test_fair_queue_in_tcp ()
+{
+    test_fair_queue_in (bind_tcp);
+}
+
+void test_envelope_inproc ()
+{
+    test_envelope (bind_inproc);
+}
+
+void test_envelope_tcp ()
+{
+    test_envelope (bind_tcp);
+}
+
+int main ()
+{
+    setup_test_environment ();
+
+    UNITY_BEGIN ();
+
+    // SHALL receive incoming messages from its peers using a fair-queuing
+    // strategy.
+    RUN_TEST (test_fair_queue_in_inproc);
+    RUN_TEST (test_fair_queue_in_tcp);
+
+    // For an incoming message:
+    // SHALL remove and store the address envelope, including the delimiter.
+    // SHALL pass the remaining data frames to its calling application.
+    // SHALL wait for a single reply message from its calling application.
+    // SHALL prepend the address envelope and delimiter.
+    // SHALL deliver this message back to the originating peer.
+    RUN_TEST (test_envelope_inproc);
+    RUN_TEST (test_envelope_tcp);
+
+    return UNITY_END ();
+}