tests: verify that the selected ALPN protocol is the first advertised

diff --git a/tests/mini-alpn.c b/tests/mini-alpn.c
index 355141a771e5fadc52b1055cd0900ede742e81da..049bf2e62414cc7e11ed739668d0cca95801c012 100644 (file)
--- a/tests/mini-alpn.c
+++ b/tests/mini-alpn.c
@@ -171,6 +171,7 @@ static void server(int fd, const char *protocol1, const char *protocol2)
        gnutls_session_t session;
        gnutls_anon_server_credentials_t anoncred;
        gnutls_datum_t t[2];
+       gnutls_datum_t selected;
 
        /* this must be called once in the program
         */
@@ -226,17 +227,22 @@ static void server(int fd, const char *protocol1, const char *protocol2)
                        gnutls_protocol_get_name
                        (gnutls_protocol_get_version(session)));
 
-       ret = gnutls_alpn_get_selected_protocol(session, &t[0]);
+       ret = gnutls_alpn_get_selected_protocol(session, &selected);
        if (ret < 0) {
                gnutls_perror(ret);
                exit(1);
        }
 #if 0
        if (debug) {
-               success("Protocol: %.*s\n", (int) t[0].size, t[0].data);
+               success("Protocol: %.*s\n", (int) selected.size, selected.data);
        }
 #endif
 
+       if (selected.size != strlen(protocol1) || memcmp(selected.data, protocol1, selected.size) != 0) {
+               fail("did not select the expected protocol (selected %.*s, expected %s)\n", selected.size, selected.data, protocol1);
+               exit(1);
+       }
+
        /* do not wait for the peer to close the connection.
         */
        gnutls_bye(session, GNUTLS_SHUT_WR);