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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.hadoop.hive.ql.udf.generic;
import junit.framework.TestCase;
import org.apache.hadoop.hive.common.type.HiveDecimal;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredJavaObject;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDFAbs;
import org.apache.hadoop.hive.serde2.io.DoubleWritable;
import org.apache.hadoop.hive.serde2.io.HiveDecimalWritable;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.apache.hadoop.io.FloatWritable;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
public class TestGenericUDFAbs extends TestCase {
public void testInt() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new IntWritable(107));
DeferredObject[] args = {valueObj};
IntWritable output = (IntWritable) udf.evaluate(args);
assertEquals("abs() test for INT failed ", 107, output.get());
valueObj = new DeferredJavaObject(new IntWritable(-107));
args[0] = valueObj;
output = (IntWritable) udf.evaluate(args);
assertEquals("abs() test for INT failed ", 107, output.get());
}
public void testLong() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableLongObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new LongWritable(107L));
DeferredObject[] args = {valueObj};
LongWritable output = (LongWritable) udf.evaluate(args);
assertEquals("abs() test for LONG failed ", 107, output.get());
valueObj = new DeferredJavaObject(new LongWritable(-107L));
args[0] = valueObj;
output = (LongWritable) udf.evaluate(args);
assertEquals("abs() test for LONG failed ", 107, output.get());
}
public void testDouble() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableDoubleObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new DoubleWritable(107.78));
DeferredObject[] args = {valueObj};
DoubleWritable output = (DoubleWritable) udf.evaluate(args);
assertEquals("abs() test for Double failed ", 107.78, output.get());
valueObj = new DeferredJavaObject(new DoubleWritable(-107.78));
args[0] = valueObj;
output = (DoubleWritable) udf.evaluate(args);
assertEquals("abs() test for Double failed ", 107.78, output.get());
}
public void testFloat() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableFloatObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new FloatWritable(107.78f));
DeferredObject[] args = {valueObj};
DoubleWritable output = (DoubleWritable) udf.evaluate(args);
// Make sure flow and double equality compare works
assertTrue("abs() test for Float failed ", Math.abs(107.78 - output.get()) < 0.0001);
valueObj = new DeferredJavaObject(new FloatWritable(-107.78f));
args[0] = valueObj;
output = (DoubleWritable) udf.evaluate(args);
assertTrue("abs() test for Float failed ", Math.abs(107.78 - output.get()) < 0.0001);
}
public void testText() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new Text("123.45"));
DeferredObject[] args = {valueObj};
DoubleWritable output = (DoubleWritable) udf.evaluate(args);
assertEquals("abs() test for String failed ", "123.45", output.toString());
valueObj = new DeferredJavaObject(new Text("-123.45"));
args[0] = valueObj;
output = (DoubleWritable) udf.evaluate(args);
assertEquals("abs() test for String failed ", "123.45", output.toString());
}
public void testHiveDecimal() throws HiveException {
GenericUDFAbs udf = new GenericUDFAbs();
ObjectInspector valueOI = PrimitiveObjectInspectorFactory.writableHiveDecimalObjectInspector;
ObjectInspector[] arguments = {valueOI};
udf.initialize(arguments);
DeferredObject valueObj = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create(
"107.123456789")));
DeferredObject[] args = {valueObj};
HiveDecimalWritable output = (HiveDecimalWritable) udf.evaluate(args);
assertEquals("abs() test for HiveDecimal failed ", 107.123456789, output.getHiveDecimal()
.doubleValue());
valueObj = new DeferredJavaObject(new HiveDecimalWritable(HiveDecimal.create("-107.123456789")));
args[0] = valueObj;
output = (HiveDecimalWritable) udf.evaluate(args);
assertEquals("abs() test for HiveDecimal failed ", 107.123456789, output.getHiveDecimal()
.doubleValue());
}
}