| /* |
| * 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 java.io.Reader; |
| import java.io.StringReader; |
| import org.apache.lucene.analysis.BaseTokenStreamFactoryTestCase; |
| import org.apache.lucene.analysis.MockTokenizer; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.Tokenizer; |
| |
| /** 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")); |
| } |
| } |