message: Add deser from slice to roundtrip tests
diff: @@ -1290,8 +1290,14 @@ where
  t.write_bytes(&mut written_bytes)
  .expect("Unable to serialize data via write_bytes");
  assert_eq!(serialized, written_bytes);
  +
  + let deserialized_from_slice =
  + deserialize_from_slice(&serialized).expect("Unable to deserialize data");
  + // assert!(*t == deserialized);
  + assert_eq!(*t, deserialized_from_slice);
  +
  let deserialized = deserialize::<T>(serialized).expect("Unable to deserialize data");
  - assert!(*t == deserialized);
  + assert_eq!(*t, deserialized);
  }
  #[cfg(test)]
  mod tests {
  