FILE *log = fopen("/dev/null", "w");

log_set_file(log);

log_set_level(LOG_WARN);

log_trace("NOT OK");

log_debug("NOT OK");

log_info("NOT OK");

log_warn("OK");

log_error("OK");

log_fatal("OK");

if (log_trace()) abort();

if (log_debug()) abort();

if (log_info()) abort();

if (log_warn()) {log_warn();}

if (log_error()) {log_error();}

if (log_fatal()) {log_fatal();}

fclose(log);

log_info("NOT OK");

log_warn("OK");

log_set_file(NULL);

log_warn("OK");

/* Test the timestamp stuff

FILE *logf = fopen("/tmp/foo.log","w");

log_set_file(logf);

log_warn("OK");

log_warn("OK");

log_warn("OK AGAIN");

fclose(logf);

*/

return 0;