/**
* 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.junit.Assert;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDFUtils;
import org.apache.hadoop.io.Text;
import org.junit.Test;
public class TestGenericUDFUtils {
@Test
public void testFindText() throws Exception {
// http://dev.mysql.com/doc/refman/5.1/en/string-functions.html#function_locate
Assert.assertEquals(0, GenericUDFUtils.findText(new Text("foobarbar"), new Text("foo"), 0));
Assert.assertEquals(3, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 0));
Assert.assertEquals(-1, GenericUDFUtils.findText(new Text("foobarbar"), new Text("xbar"), 0));
Assert.assertEquals(6, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 5));
Assert.assertEquals(6, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 5));
Assert.assertEquals(6, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 6));
Assert.assertEquals(-1, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 7));
Assert.assertEquals(-1, GenericUDFUtils.findText(new Text("foobarbar"), new Text("bar"), 10));
Assert.assertEquals(-1, GenericUDFUtils.findText(new Text(""), new Text("bar"), 0));
Assert.assertEquals(0, GenericUDFUtils.findText(new Text(""), new Text(""), 0));
Assert.assertEquals(0, GenericUDFUtils.findText(new Text("foobar"), new Text(""), 0));
Assert.assertEquals(0, GenericUDFUtils.findText(new Text("foobar"), new Text(""), 6));
Assert.assertEquals(-1, GenericUDFUtils.findText(new Text("foobar"), new Text(""), 7));
//Unicode case.
Assert.assertEquals(4, GenericUDFUtils.findText(new Text("НАСТРОЕние"), new Text("Р"), 0));
Assert.assertEquals(15, GenericUDFUtils.findText(new Text("НАСТРОЕние НАСТРОЕние"), new Text("Р"), 11));
//surrogate pair case
Assert.assertEquals(3, GenericUDFUtils.findText(new Text("123\uD801\uDC00456"), new Text("\uD801\uDC00"), 0));
Assert.assertEquals(4, GenericUDFUtils.findText(new Text("123\uD801\uDC00456"), new Text("4"), 0));
}
}