/*
* 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.lucene.analysis.miscellaneous;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.TokenStream;
import org.junit.Test;
/**
* Test the truncate token filter.
*/
public class TestTruncateTokenFilter extends BaseTokenStreamTestCase {
public void testTruncating() throws Exception {
TokenStream stream = whitespaceMockTokenizer("abcdefg 1234567 ABCDEFG abcde abc 12345 123");
stream = new TruncateTokenFilter(stream, 5);
assertTokenStreamContents(stream, new String[]{"abcde", "12345", "ABCDE", "abcde", "abc", "12345", "123"});
}
@Test(expected = IllegalArgumentException.class)
public void testNonPositiveLength() throws Exception {
new TruncateTokenFilter(whitespaceMockTokenizer("length must be a positive number"), -48);
}
}