| /* |
| * 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.MockTokenizer; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.util.BaseTokenStreamFactoryTestCase; |
| |
| import java.io.Reader; |
| import java.io.StringReader; |
| |
| /** |
| * Simple tests to ensure the simple truncation filter factory is working. |
| */ |
| public class TestTruncateTokenFilterFactory extends BaseTokenStreamFactoryTestCase { |
| /** |
| * Ensure the filter actually truncates text. |
| */ |
| public void testTruncating() throws Exception { |
| Reader reader = new StringReader("abcdefg 1234567 ABCDEFG abcde abc 12345 123"); |
| TokenStream stream = new MockTokenizer(MockTokenizer.WHITESPACE, false); |
| ((Tokenizer) stream).setReader(reader); |
| stream = tokenFilterFactory("Truncate", |
| TruncateTokenFilterFactory.PREFIX_LENGTH_KEY, "5").create(stream); |
| assertTokenStreamContents(stream, new String[]{"abcde", "12345", "ABCDE", "abcde", "abc", "12345", "123"}); |
| } |
| |
| /** |
| * Test that bogus arguments result in exception |
| */ |
| public void testBogusArguments() throws Exception { |
| IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> { |
| tokenFilterFactory("Truncate", |
| TruncateTokenFilterFactory.PREFIX_LENGTH_KEY, "5", |
| "bogusArg", "bogusValue"); |
| }); |
| assertTrue(expected.getMessage().contains("Unknown parameter(s):")); |
| } |
| |
| /** |
| * Test that negative prefix length result in exception |
| */ |
| public void testNonPositivePrefixLengthArgument() throws Exception { |
| IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> { |
| tokenFilterFactory("Truncate", |
| TruncateTokenFilterFactory.PREFIX_LENGTH_KEY, "-5" |
| ); |
| }); |
| assertTrue(expected.getMessage().contains(TruncateTokenFilterFactory.PREFIX_LENGTH_KEY + " parameter must be a positive number: -5")); |
| } |
| } |
| |
| |