message: Test debug formatting in plist tests
diff: @@ -49,6 +49,8 @@ macro_rules! test_pl_common {
  assert_eq!(pl_default.class()?, $plc);
  assert_eq!(pl_default, pl_default);
  + assert!(format!("{:?}", pl_default).starts_with(&format!("{:?}", $plc)));
  +
  let mut b = $cls::build();
  let pl = $func(&mut b)?;
  assert_eq!(pl.class()?, $plc);
  