private void longColAddLongScalarWithRepeatingUtil(boolean isChecked) throws HiveException {
    LongColumnVector in, out;
    VectorizedRowBatch batch;
    VectorExpression expr;

    // Case 1: is repeating, no nulls
    batch = getVectorizedRowBatchSingleLongVector(VectorizedRowBatch.DEFAULT_SIZE);
    in = (LongColumnVector) batch.cols[0];
    in.isRepeating = true;
    out = (LongColumnVector) batch.cols[1];
    out.isRepeating = false;
    if(isChecked) {
      expr = new LongColAddLongScalarChecked(0, 23, 1);
      expr.setOutputTypeInfo(TypeInfoFactory.getPrimitiveTypeInfo("bigint"));
    } else {
      expr = new LongColAddLongScalar(0, 23, 1);
    }

    expr.evaluate(batch);
    // verify
    Assert.assertTrue(out.isRepeating);
    Assert.assertTrue(out.noNulls);
    Assert.assertEquals(out.vector[0], 0 * 37 + 23);

    // Case 2: is repeating, has nulls
    batch = getVectorizedRowBatchSingleLongVector(VectorizedRowBatch.DEFAULT_SIZE);
    in = (LongColumnVector) batch.cols[0];
    in.isRepeating = true;
    in.noNulls = false;
    in.isNull[0] = true;

    out = (LongColumnVector) batch.cols[1];
    out.isRepeating = false;
    out.isNull[0] = false;
    out.noNulls = true;
    if (isChecked) {
      expr = new LongColAddLongScalarChecked(0, 23, 1);
      expr.setOutputTypeInfo(TypeInfoFactory.getPrimitiveTypeInfo("bigint"));
    } else {
      expr = new LongColAddLongScalar(0, 23, 1);
    }

    expr.evaluate(batch);
    // verify
    Assert.assertTrue(out.isRepeating);
    Assert.assertFalse(out.noNulls);
    Assert.assertEquals(true, out.isNull[0]);
    verifyLongNullDataVectorEntries(out, batch.selected, batch.selectedInUse, batch.size);
  }
Unit tests for vectorized arithmetic expressions.
ql/src/test/org/apache/hadoop/hive/ql/exec/vector/expressions/TestVectorArithmeticExpressions.java