@Test
public void testDecimalColAddDecimalColumn() {
VectorizedRowBatch b = getVectorizedRowBatch3DecimalCols();
VectorExpression expr = new DecimalColAddDecimalColumn(0, 1, 2);
DecimalColumnVector r = (DecimalColumnVector) b.cols[2];
// test without nulls
expr.evaluate(b);
assertTrue(r.vector[0].equals(new Decimal128("2.20", (short) 2)));
assertTrue(r.vector[1].equals(new Decimal128("-2.30", (short) 2)));
assertTrue(r.vector[2].equals(new Decimal128("1.00", (short) 2)));
// test nulls propagation
b = getVectorizedRowBatch3DecimalCols();
DecimalColumnVector c0 = (DecimalColumnVector) b.cols[0];
c0.noNulls = false;
c0.isNull[0] = true;
r = (DecimalColumnVector) b.cols[2];
expr.evaluate(b);
assertTrue(!r.noNulls && r.isNull[0]);
// Verify null output data entry is not 0, but rather the value specified by design,
// which is the minimum non-0 value, 0.01 in this case.
assertTrue(r.vector[0].equals(new Decimal128("0.01", (short) 2)));
// test that overflow produces NULL
b = getVectorizedRowBatch3DecimalCols();
c0 = (DecimalColumnVector) b.cols[0];
c0.vector[0].update("9999999999999999.99", (short) 2); // set to max possible value
r = (DecimalColumnVector) b.cols[2];
expr.evaluate(b); // will cause overflow for result at position 0, must yield NULL
assertTrue(!r.noNulls && r.isNull[0]);
// verify proper null output data value
assertTrue(r.vector[0].equals(new Decimal128("0.01", (short) 2)));
// test left input repeating
b = getVectorizedRowBatch3DecimalCols();
c0 = (DecimalColumnVector) b.cols[0];
c0.isRepeating = true;
r = (DecimalColumnVector) b.cols[2];
expr.evaluate(b);
assertTrue(r.vector[0].equals(new Decimal128("2.20", (short) 2)));
assertTrue(r.vector[1].equals(new Decimal128("2.20", (short) 2)));
assertTrue(r.vector[2].equals(new Decimal128("2.20", (short) 2)));
// test both inputs repeating
DecimalColumnVector c1 = (DecimalColumnVector) b.cols[1];
c1.isRepeating = true;
expr.evaluate(b);
assertTrue(r.isRepeating);
assertTrue(r.vector[0].equals(new Decimal128("2.20", (short) 2)));