message: Add missing result check
diff: @@ -905,7 +905,8 @@ mod tests {
  leave_default_data(&env);
  let api = MockApi::default();
  - do_canonicalize_address(&env, source_ptr, dest_ptr).unwrap();
  + let res = do_canonicalize_address(&env, source_ptr, dest_ptr).unwrap();
  + assert_eq!(res, 0);
  let data = force_read(&env, dest_ptr);
  assert_eq!(data.len(), api.canonical_length);
  }
  