625b618776
Problem: Since pull request #1730 was merged, protocol for REQ socket is checked at the session level and this check does not take into account the possibility of a request_id being part of the message. Thus the option ZMQ_REQ_CORRELATE would no longer work. This is now fixed: the possiblity of a 4 bytes integer being present before the delimiter frame is taken into account (whether or not this breaks the REQ/REP RFC is another issue).
Guidelines for tests
Write your test case as if you were writing clean application code. It should be safe to compile on all platforms.
The only include file you should use is testutil.hpp. Do not include files from src. Do not use the internal libzmq API or your test case is fair game to be deleted.
If you must write non-portable code, wrap it in #ifdefs to ensure it will compile and run on all systems.
Note that testutil.hpp includes platform.h. Do not include it yourself as it changes location depending on the build system and OS.
All sources must contain the correct header. Please copy from test_system.cpp if you're not certain.
Please use only ANSI C99 in test cases, no C++. This is to make the code more reusable.
On many slower environments, like embedded systems, VMs or CI systems, test might fail because it takes time for sockets to settle after a connect. If you need to add a sleep, please be consistent with all the other tests and use: msleep (SETTLE_TIME);
Building tests in Windows
Install CMAKE CMD> CMAKE libzmq/tests CMD> tests.sln CMD> # build all projects in the solution