+ r = sd_bus_message_read_basic(m, 's', &s);
+ assert_se(r > 0);
+ assert_se(streq(s, "hallo"));
+
+ r = sd_bus_message_read_array(m, 'i', (const void**) &return_array, &sz);
+ assert_se(r > 0);
+ assert_se(sz == sizeof(integer_array));
+ assert_se(memcmp(integer_array, return_array, sz) == 0);
+