Added test case for issue 451

451/issue.c

@@ -0,0 +1,40 @@
+#include "czmq.h"
+
+int main () {
+    zctx_t *context = zctx_new ();
+
+    puts ("Testing ZMQ_ROUTER_MANDATORY:");
+    void *router = zsocket_new (context, ZMQ_ROUTER);
+    zmq_bind (router, "tcp://*:6666");
+
+    //  Test non-mandatory, it will fail silently
+    zsocket_set_router_mandatory (router, 0);
+    zmsg_t *msg = zmsg_new ();
+    zmsg_addstr (msg, "identity");
+    zmsg_addstr (msg, "data");
+    int rc = zmsg_send (&msg, router);
+    if (rc == 0)
+        puts (" -- step 1 OK");
+    else {
+        puts (" -- step 1 FAILED");
+        return 0;
+    }
+
+    //  Test mandatory, it should return EHOSTUNREACH
+    zsocket_set_router_mandatory (router, 1);
+    msg = zmsg_new ();
+    zmsg_addstr (msg, "identity");
+    zmsg_addstr (msg, "data");
+    rc = zmsg_send (&msg, router);
+    if (rc == -1 && errno == EHOSTUNREACH)
+        puts (" -- step 2 OK");
+    else
+    if (rc == -1 && errno == EAGAIN)
+        puts (" -- step 2 old behavior");
+    else
+        puts (" -- step 2 FAILED");
+
+    zctx_destroy (&context);
+    return 0;
+}
+