@Test
    public void normalExtendedMessage() throws Exception
    {

        byte[] message = MsgpackIOUtil.toByteArray(fixtureExtended, EXTENDED_SCHEMA, numeric);

        TestMessageExtended instance = EXTENDED_SCHEMA.newMessage();

        MsgpackIOUtil.mergeFrom(message, instance, EXTENDED_SCHEMA, numeric);
        checkKnownFields(instance);
    }
Test for ignoring unknown fields during de-seralization
protostuff-msgpack/src/test/java/io/protostuff/MsgpackUnknownFieldTest.java