/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hive.ql.exec.vector.expressions;
import junit.framework.Assert;
import org.apache.hadoop.hive.common.type.Decimal128;
import org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
import org.junit.Test;
/**
* Unit tests for DecimalUtil.
*/
public class TestDecimalUtil {
@Test
public void testFloor() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
Decimal128 expected1 = new Decimal128(19, (short)0);
DecimalUtil.floor(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(23.0, (short) 5);
Decimal128 expected2 = new Decimal128(23, (short)0);
DecimalUtil.floor(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
Decimal128 d3 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected3 = new Decimal128(-26, (short)0);
DecimalUtil.floor(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0]));
Decimal128 d4 = new Decimal128(-17, (short) 5);
Decimal128 expected4 = new Decimal128(-17, (short)0);
DecimalUtil.floor(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0]));
Decimal128 d5 = new Decimal128(-0.3, (short) 5);
Decimal128 expected5 = new Decimal128(-1, (short)0);
DecimalUtil.floor(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0]));
Decimal128 d6 = new Decimal128(0.3, (short) 5);
Decimal128 expected6 = new Decimal128(0, (short)0);
DecimalUtil.floor(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0]));
}
@Test
public void testCeiling() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
Decimal128 expected1 = new Decimal128(20, (short)0);
DecimalUtil.ceiling(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(23.0, (short) 5);
Decimal128 expected2 = new Decimal128(23, (short)0);
DecimalUtil.ceiling(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
Decimal128 d3 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected3 = new Decimal128(-25, (short)0);
DecimalUtil.ceiling(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0]));
Decimal128 d4 = new Decimal128(-17, (short) 5);
Decimal128 expected4 = new Decimal128(-17, (short)0);
DecimalUtil.ceiling(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0]));
Decimal128 d5 = new Decimal128(-0.3, (short) 5);
Decimal128 expected5 = new Decimal128(0, (short)0);
DecimalUtil.ceiling(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0]));
Decimal128 d6 = new Decimal128(0.3, (short) 5);
Decimal128 expected6 = new Decimal128(1, (short)0);
DecimalUtil.ceiling(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0]));
}
@Test
public void testAbs() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
DecimalUtil.abs(0, d1, dcv);
Assert.assertEquals(0, d1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected2 = new Decimal128(25.34567, (short)5);
DecimalUtil.abs(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
}
@Test
public void testRound() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 0);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
Decimal128 expected1 = new Decimal128(20, (short)0);
DecimalUtil.round(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(23.0, (short) 5);
Decimal128 expected2 = new Decimal128(23, (short)0);
DecimalUtil.round(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
Decimal128 d3 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected3 = new Decimal128(-25, (short)0);
DecimalUtil.round(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0]));
Decimal128 d4 = new Decimal128(-17, (short) 5);
Decimal128 expected4 = new Decimal128(-17, (short)0);
DecimalUtil.round(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0]));
Decimal128 d5 = new Decimal128(19.36778, (short) 5);
Decimal128 expected5 = new Decimal128(19, (short)0);
DecimalUtil.round(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0]));
Decimal128 d6 = new Decimal128(-25.54567, (short) 5);
Decimal128 expected6 = new Decimal128(-26, (short)0);
DecimalUtil.round(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0]));
}
@Test
public void testRoundWithDigits() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 3);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
Decimal128 expected1 = new Decimal128(19.568, (short)3);
DecimalUtil.round(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(23.567, (short) 5);
Decimal128 expected2 = new Decimal128(23.567, (short)3);
DecimalUtil.round(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
Decimal128 d3 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected3 = new Decimal128(-25.346, (short)3);
DecimalUtil.round(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0]));
Decimal128 d4 = new Decimal128(-17.234, (short) 5);
Decimal128 expected4 = new Decimal128(-17.234, (short)3);
DecimalUtil.round(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0]));
Decimal128 d5 = new Decimal128(19.36748, (short) 5);
Decimal128 expected5 = new Decimal128(19.367, (short)3);
DecimalUtil.round(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0]));
Decimal128 d6 = new Decimal128(-25.54537, (short) 5);
Decimal128 expected6 = new Decimal128(-25.545, (short)3);
DecimalUtil.round(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0]));
}
@Test
public void testNegate() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
Decimal128 expected1 = new Decimal128(-19.56778, (short)5);
DecimalUtil.negate(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0]));
Decimal128 d2 = new Decimal128(-25.34567, (short) 5);
Decimal128 expected2 = new Decimal128(25.34567, (short)5);
DecimalUtil.negate(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0]));
Decimal128 d3 = new Decimal128(0, (short) 5);
Decimal128 expected3 = new Decimal128(0, (short)0);
DecimalUtil.negate(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0]));
}
@Test
public void testSign() {
LongColumnVector lcv = new LongColumnVector(4);
Decimal128 d1 = new Decimal128(19.56778, (short) 5);
DecimalUtil.sign(0, d1, lcv);
Assert.assertEquals(1, lcv.vector[0]);
Decimal128 d2 = new Decimal128(-25.34567, (short) 5);
DecimalUtil.sign(0, d2, lcv);
Assert.assertEquals(-1, lcv.vector[0]);
Decimal128 d3 = new Decimal128(0, (short) 5);
DecimalUtil.sign(0, d3, lcv);
Assert.assertEquals(0, lcv.vector[0]);
}
}