### Question:
OxmTcpDstSerializer extends AbstractOxmMatchEntrySerializer { @Override protected int getOxmClassCode() { return OxmMatchConstants.OPENFLOW_BASIC_CLASS; }  @Override void serialize(MatchEntry entry, ByteBuf outBuffer);  }### Answer:
@Test public void testGetOxmClassCode() { assertEquals("Wrong oxm-class", OxmMatchConstants.OPENFLOW_BASIC_CLASS, serializer.getOxmClassCode()); }