### Question:
OxmIpv4SrcSerializer extends AbstractOxmIpv4AddressSerializer { @Override protected int getValueLength() { return EncodeConstants.SIZE_OF_INT_IN_BYTES; }  @Override void serialize(final MatchEntry entry, final ByteBuf outBuffer);  }### Answer:
@Test public void testGetValueLength() { assertEquals("Wrong value length", EncodeConstants.SIZE_OF_INT_IN_BYTES, serializer.getValueLength()); }