EnumId implements DataSerializableFixedID { @Override public int getDSFID() { return ENUM_ID; } EnumId(int id);  EnumId(); @Override int getDSFID(); @Override void toData(DataOutput out,
      SerializationContext context); @Override void fromData(DataInput in,
      DeserializationContext context); int intValue(); int getDSId(); int getEnumNum(); @Override int hashCode(); @Override boolean equals(Object obj); @Override String toString(); @Override KnownVersion[] getSerializationVersions();  }
@Test public void testGetDSFID() { final EnumId enumId = new EnumId(ID); assertEquals(ENUM_ID, enumId.getDSFID()); }