assert_se(bus_message_get_blob(m, &blob, &sz) >= 0);
assert_se(bus_message_from_malloc(bus, blob, sz, NULL, 0, NULL, NULL, &n) >= 0);
blob = NULL;
assert_se(bus_message_get_blob(m, &blob, &sz) >= 0);
assert_se(bus_message_from_malloc(bus, blob, sz, NULL, 0, NULL, NULL, &n) >= 0);
blob = NULL;