private void compareToUDFUnixTimeStampDate(long t, long y) {
    TimestampLocalTZWritable tsw = toTimestampLocalTZWritable(t);
    LongWritable res = getLongWritable(tsw);
    Assert.assertEquals(res.get(), y);
  }
Input array is used to fill the entire size of the vector row batch
ql/src/test/org/apache/hadoop/hive/ql/exec/vector/expressions/TestVectorDateExpressions.java