long tailPos = dbusBuf.getTail();
long headGenId = parser.bufferGenId(headPos);
long headIndexId = parser.bufferIndex(headPos);
long headOffset = parser.bufferOffset(headPos);
long tailGenId = parser.bufferGenId(tailPos);
long tailIndexId = parser.bufferIndex(tailPos);
long tailOffset = parser.bufferOffset(tailPos);
assertEquals("Head GenId", 0, headGenId);
assertEquals("Head Index", 0, headIndexId);
assertEquals("Head Offset", 1627, headOffset);