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libzmq/tests/test_xpub_verbose.cpp
Luca Boccassi 354491ddf2 Problem: no test for ZMQ_XPUB_VERBOSE(R) 
Solution: add test_xpub_verbose to cover those APIs
2018-03-02 13:42:44 +01:00

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/*
Copyright (c) 2018 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 <unity.h>
void setUp ()
{
}
void tearDown ()
{
}
void test_xpub_verbose_one_sub ()
{
int rc;
char buffer[2];
void *ctx = zmq_ctx_new ();
TEST_ASSERT_NOT_NULL (ctx);
void *pub = zmq_socket (ctx, ZMQ_XPUB);
TEST_ASSERT_NOT_NULL (pub);
rc = zmq_bind (pub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
void *sub = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub);
rc = zmq_connect (sub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe for A
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Subscribe socket for B instead
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "B", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'B');
// Subscribe again for A again
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time it is duplicated, so it will be filtered out
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
int verbose = 1;
rc = zmq_setsockopt (pub, ZMQ_XPUB_VERBOSE, &verbose, sizeof (int));
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe socket for A again
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time with VERBOSE the duplicated sub will be received
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Sending A message and B Message
rc = zmq_send_const (pub, "A", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_send_const (pub, "B", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_recv (sub, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
rc = zmq_recv (sub, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'B');
// Clean up.
rc = zmq_close (pub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_ctx_term (ctx);
TEST_ASSERT_EQUAL_INT (0, rc);
}
void test_xpub_verbose_two_subs ()
{
int rc;
char buffer[2];
void *ctx = zmq_ctx_new ();
TEST_ASSERT_NOT_NULL (ctx);
void *pub = zmq_socket (ctx, ZMQ_XPUB);
TEST_ASSERT_NOT_NULL (pub);
rc = zmq_bind (pub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
void *sub0 = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub0);
rc = zmq_connect (sub0, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
void *sub1 = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub1);
rc = zmq_connect (sub1, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe for A on the first socket
rc = zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Subscribe for A on the second socket
rc = zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time it is duplicated, so it will be filtered out
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Subscribe socket for B instead
rc = zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, "B", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'B');
int verbose = 1;
rc = zmq_setsockopt (pub, ZMQ_XPUB_VERBOSE, &verbose, sizeof (int));
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe socket for A again
rc = zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time with VERBOSE the duplicated sub will be received
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Sending A message and B Message
rc = zmq_send_const (pub, "A", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_send_const (pub, "B", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_recv (sub0, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
rc = zmq_recv (sub1, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
rc = zmq_recv (sub0, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'B');
// Clean up.
rc = zmq_close (pub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub0);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub1);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_ctx_term (ctx);
TEST_ASSERT_EQUAL_INT (0, rc);
}
void test_xpub_verboser_one_sub ()
{
int rc;
char buffer[3];
void *ctx = zmq_ctx_new ();
TEST_ASSERT_NOT_NULL (ctx);
// Create a publisher
void *pub = zmq_socket (ctx, ZMQ_XPUB);
TEST_ASSERT_NOT_NULL (pub);
rc = zmq_bind (pub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
// Create a subscriber
void *sub = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub);
rc = zmq_connect (sub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
// Unsubscribe for A, does not exist yet
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Does not exist, so it will be filtered out by XSUB
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Subscribe for A
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Subscribe again for A again, XSUB will increase refcount
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time it is duplicated, so it will be filtered out by XPUB
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Unsubscribe for A, this time it exists in XPUB
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// XSUB refcounts and will not actually send unsub to PUB until the number
// of unsubs match the earlier subs
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive unsubscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 0);
assert (buffer[1] == 'A');
// XSUB only sends the last and final unsub, so XPUB will only receive 1
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Unsubscribe for A, does not exist anymore
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Does not exist, so it will be filtered out by XSUB
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
int verbose = 1;
rc = zmq_setsockopt (pub, ZMQ_XPUB_VERBOSER, &verbose, sizeof (int));
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe socket for A again
rc = zmq_setsockopt (sub, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber, did not exist anymore
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Sending A message to make sure everything still works
rc = zmq_send_const (pub, "A", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_recv (sub, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
// Unsubscribe for A, this time it exists
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive unsubscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 0);
assert (buffer[1] == 'A');
// Unsubscribe for A again, it does not exist anymore so XSUB will filter
rc = zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// XSUB only sends unsub if it matched it in its trie, IOW: it will only
// send it if it existed in the first place even with XPUB_VERBBOSER
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Clean up.
rc = zmq_close (pub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_ctx_term (ctx);
TEST_ASSERT_EQUAL_INT (0, rc);
}
void test_xpub_verboser_two_subs ()
{
int rc;
char buffer[3];
void *ctx = zmq_ctx_new ();
TEST_ASSERT_NOT_NULL (ctx);
void *pub = zmq_socket (ctx, ZMQ_XPUB);
TEST_ASSERT_NOT_NULL (pub);
rc = zmq_bind (pub, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
void *sub0 = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub0);
rc = zmq_connect (sub0, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
void *sub1 = zmq_socket (ctx, ZMQ_SUB);
TEST_ASSERT_NOT_NULL (sub1);
rc = zmq_connect (sub1, "inproc://soname");
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe for A
rc = zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Subscribe again for A on the other socket
rc = zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// This time it is duplicated, so it will be filtered out by XPUB
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Unsubscribe for A, this time it exists in XPUB
rc = zmq_setsockopt (sub0, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// sub1 is still subscribed, so no notification
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Unsubscribe the second socket to trigger the notification
rc = zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive unsubscriptions since all sockets are gone
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 0);
assert (buffer[1] == 'A');
// Make really sure there is only one notification
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
int verbose = 1;
rc = zmq_setsockopt (pub, ZMQ_XPUB_VERBOSER, &verbose, sizeof (int));
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe socket for A again
rc = zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Subscribe socket for A again
rc = zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive subscriptions from subscriber, did not exist anymore
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// VERBOSER is set, so subs from both sockets are received
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 1);
assert (buffer[1] == 'A');
// Sending A message to make sure everything still works
rc = zmq_send_const (pub, "A", 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
rc = zmq_recv (sub0, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
rc = zmq_recv (sub1, buffer, 1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
assert (buffer[0] == 'A');
// Unsubscribe for A
rc = zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive unsubscriptions from first subscriber due to VERBOSER
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 0);
assert (buffer[1] == 'A');
// Unsubscribe for A again from the other socket
rc = zmq_setsockopt (sub0, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Receive unsubscriptions from first subscriber due to VERBOSER
rc = zmq_recv (pub, buffer, 2, 0);
TEST_ASSERT_EQUAL_INT (2, rc);
assert (buffer[0] == 0);
assert (buffer[1] == 'A');
// Unsubscribe again to make sure it gets filtered now
rc = zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, "A", 1);
TEST_ASSERT_EQUAL_INT (0, rc);
// Unmatched, so XSUB filters even with VERBOSER
rc = zmq_recv (pub, buffer, 1, ZMQ_DONTWAIT);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EAGAIN, errno);
// Clean up.
rc = zmq_close (pub);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub0);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_close (sub1);
TEST_ASSERT_EQUAL_INT (0, rc);
rc = zmq_ctx_term (ctx);
TEST_ASSERT_EQUAL_INT (0, rc);
}
int main (void)
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_xpub_verbose_one_sub);
RUN_TEST (test_xpub_verbose_two_subs);
RUN_TEST (test_xpub_verboser_one_sub);
RUN_TEST (test_xpub_verboser_two_subs);
return 0;
}
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