/**
* 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.udf.generic;
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.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import junit.framework.TestCase;
public class TestGenericUDFRpad extends TestCase {
public void testRpad() throws HiveException {
GenericUDFRpad udf = new GenericUDFRpad();
ObjectInspector valueOI1 = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
ObjectInspector valueOI2 = PrimitiveObjectInspectorFactory.writableIntObjectInspector;
ObjectInspector valueOI3 = PrimitiveObjectInspectorFactory.writableStringObjectInspector;
ObjectInspector[] arguments = { valueOI1, valueOI2, valueOI3 };
udf.initialize(arguments);
runAndVerify("hi", 5, "??", "hi???", udf);
runAndVerify("hi", 1, "??", "h", udf);
runAndVerify("ｈｉ", 5, "？？", "ｈｉ？？？", udf);
runAndVerify("ｈｉ", 1, "？？", "ｈ", udf);
runAndVerify("hi", 3, "", null, udf);
}
private void runAndVerify(String str, int len, String pad, String expResult, GenericUDF udf)
throws HiveException {
DeferredObject valueObj1 = new DeferredJavaObject(new Text(str));
DeferredObject valueObj2 = new DeferredJavaObject(new IntWritable(len));
DeferredObject valueObj3 = new DeferredJavaObject(new Text(pad));
DeferredObject[] args = { valueObj1, valueObj2, valueObj3 };
Object output = udf.evaluate(args);
if(expResult != null) {
assertEquals("rpad() test ", expResult, output.toString());
} else {
assertNull("rpad() test ", output);
}
}
}