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* 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.HiveDecimal;
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);
HiveDecimal d1 = HiveDecimal.create("19.56778");
HiveDecimal expected1 = HiveDecimal.create("19");
DecimalUtil.floor(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
// As of HIVE-8745, these decimal values should be trimmed of trailing zeros.
HiveDecimal d2 = HiveDecimal.create("23.00000");
Assert.assertEquals(0, d2.scale());
HiveDecimal expected2 = HiveDecimal.create("23");
DecimalUtil.floor(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d3 = HiveDecimal.create("-25.34567");
HiveDecimal expected3 = HiveDecimal.create("-26");
DecimalUtil.floor(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d4 = HiveDecimal.create("-17.00000");
Assert.assertEquals(0, d4.scale());
HiveDecimal expected4 = HiveDecimal.create("-17");
DecimalUtil.floor(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d5 = HiveDecimal.create("-0.30000");
Assert.assertEquals(1, d5.scale());
HiveDecimal expected5 = HiveDecimal.create("-1");
DecimalUtil.floor(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d6 = HiveDecimal.create("0.30000");
Assert.assertEquals(1, d6.scale());
HiveDecimal expected6 = HiveDecimal.create("0");
DecimalUtil.floor(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testCeiling() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
HiveDecimal d1 = HiveDecimal.create("19.56778");
HiveDecimal expected1 = HiveDecimal.create("20");
DecimalUtil.ceiling(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
// As of HIVE-8745, these decimal values should be trimmed of trailing zeros.
HiveDecimal d2 = HiveDecimal.create("23.00000");
Assert.assertEquals(0, d2.scale());
HiveDecimal expected2 = HiveDecimal.create("23");
DecimalUtil.ceiling(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d3 = HiveDecimal.create("-25.34567");
HiveDecimal expected3 = HiveDecimal.create("-25");
DecimalUtil.ceiling(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d4 = HiveDecimal.create("-17.00000");
Assert.assertEquals(0, d4.scale());
HiveDecimal expected4 = HiveDecimal.create("-17");
DecimalUtil.ceiling(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d5 = HiveDecimal.create("-0.30000");
Assert.assertEquals(1, d5.scale());
HiveDecimal expected5 = HiveDecimal.create("0");
DecimalUtil.ceiling(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d6 = HiveDecimal.create("0.30000");
Assert.assertEquals(1, d6.scale());
HiveDecimal expected6 = HiveDecimal.create("1");
DecimalUtil.ceiling(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testAbs() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
HiveDecimal d1 = HiveDecimal.create("19.56778");
DecimalUtil.abs(0, d1, dcv);
Assert.assertEquals(0, d1.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d2 = HiveDecimal.create("-25.34567");
HiveDecimal expected2 = HiveDecimal.create("25.34567");
DecimalUtil.abs(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testRound() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 0);
HiveDecimal d1 = HiveDecimal.create("19.56778");
HiveDecimal expected1 = HiveDecimal.create("20");
DecimalUtil.round(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
// As of HIVE-8745, these decimal values should be trimmed of trailing zeros.
HiveDecimal d2 = HiveDecimal.create("23.00000");
Assert.assertEquals(0, d2.scale());
HiveDecimal expected2 = HiveDecimal.create("23");
DecimalUtil.round(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d3 = HiveDecimal.create("-25.34567");
HiveDecimal expected3 = HiveDecimal.create("-25");
DecimalUtil.round(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d4 = HiveDecimal.create("-17.00000");
Assert.assertEquals(0, d4.scale());
HiveDecimal expected4 = HiveDecimal.create("-17");
DecimalUtil.round(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d5 = HiveDecimal.create("19.36778");
HiveDecimal expected5 = HiveDecimal.create("19");
DecimalUtil.round(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d6 = HiveDecimal.create("-25.54567");
HiveDecimal expected6 = HiveDecimal.create("-26");
DecimalUtil.round(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testRoundWithDigits() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 3);
HiveDecimal d1 = HiveDecimal.create("19.56778");
HiveDecimal expected1 = HiveDecimal.create("19.568");
DecimalUtil.round(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
// As of HIVE-8745, these decimal values should be trimmed of trailing zeros.
HiveDecimal d2 = HiveDecimal.create("23.56700");
Assert.assertEquals(3, d2.scale());
HiveDecimal expected2 = HiveDecimal.create("23.567");
DecimalUtil.round(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d3 = HiveDecimal.create("-25.34567");
HiveDecimal expected3 = HiveDecimal.create("-25.346");
DecimalUtil.round(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d4 = HiveDecimal.create("-17.23400");
Assert.assertEquals(3, d4.scale());
HiveDecimal expected4 = HiveDecimal.create("-17.234");
DecimalUtil.round(0, d4, dcv);
Assert.assertEquals(0, expected4.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d5 = HiveDecimal.create("19.36748");
HiveDecimal expected5 = HiveDecimal.create("19.367");
DecimalUtil.round(0, d5, dcv);
Assert.assertEquals(0, expected5.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d6 = HiveDecimal.create("-25.54537");
HiveDecimal expected6 = HiveDecimal.create("-25.545");
DecimalUtil.round(0, d6, dcv);
Assert.assertEquals(0, expected6.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testNegate() {
DecimalColumnVector dcv = new DecimalColumnVector(4 ,20, 13);
HiveDecimal d1 = HiveDecimal.create("19.56778");
HiveDecimal expected1 = HiveDecimal.create("-19.56778");
DecimalUtil.negate(0, d1, dcv);
Assert.assertEquals(0, expected1.compareTo(dcv.vector[0].getHiveDecimal()));
HiveDecimal d2 = HiveDecimal.create("-25.34567");
HiveDecimal expected2 = HiveDecimal.create("25.34567");
DecimalUtil.negate(0, d2, dcv);
Assert.assertEquals(0, expected2.compareTo(dcv.vector[0].getHiveDecimal()));
// As of HIVE-8745, these decimal values should be trimmed of trailing zeros.
HiveDecimal d3 = HiveDecimal.create("0.00000");
Assert.assertEquals(0, d3.scale());
HiveDecimal expected3 = HiveDecimal.create("0");
DecimalUtil.negate(0, d3, dcv);
Assert.assertEquals(0, expected3.compareTo(dcv.vector[0].getHiveDecimal()));
}
@Test
public void testSign() {
LongColumnVector lcv = new LongColumnVector(4);
HiveDecimal d1 = HiveDecimal.create("19.56778");
DecimalUtil.sign(0, d1, lcv);
Assert.assertEquals(1, lcv.vector[0]);
HiveDecimal d2 = HiveDecimal.create("-25.34567");
DecimalUtil.sign(0, d2, lcv);
Assert.assertEquals(-1, lcv.vector[0]);
HiveDecimal d3 = HiveDecimal.create("0.00000");
Assert.assertEquals(0, d3.scale());
d3.setScale(5);
DecimalUtil.sign(0, d3, lcv);
Assert.assertEquals(0, lcv.vector[0]);
}
}