| /* |
| * 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.util.BaseTokenStreamFactoryTestCase; |
| |
| import java.io.Reader; |
| import java.io.StringReader; |
| |
| public class TestLimitTokenPositionFilterFactory extends BaseTokenStreamFactoryTestCase { |
| |
| public void testMaxPosition1() throws Exception { |
| for (final boolean consumeAll : new boolean[]{true, false}) { |
| Reader reader = new StringReader("A1 B2 C3 D4 E5 F6"); |
| MockTokenizer tokenizer = whitespaceMockTokenizer(reader); |
| // if we are consuming all tokens, we can use the checks, otherwise we can't |
| tokenizer.setEnableChecks(consumeAll); |
| TokenStream stream = tokenizer; |
| stream = tokenFilterFactory("LimitTokenPosition", |
| LimitTokenPositionFilterFactory.MAX_TOKEN_POSITION_KEY, "1", |
| LimitTokenPositionFilterFactory.CONSUME_ALL_TOKENS_KEY, Boolean.toString(consumeAll) |
| ).create(stream); |
| assertTokenStreamContents(stream, new String[]{"A1"}); |
| } |
| } |
| |
| public void testMissingParam() throws Exception { |
| IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> { |
| tokenFilterFactory("LimitTokenPosition"); |
| }); |
| assertTrue("exception doesn't mention param: " + expected.getMessage(), |
| 0 < expected.getMessage().indexOf(LimitTokenPositionFilterFactory.MAX_TOKEN_POSITION_KEY)); |
| } |
| |
| public void testMaxPosition1WithShingles() throws Exception { |
| for (final boolean consumeAll : new boolean[]{true, false}) { |
| Reader reader = new StringReader("one two three four five"); |
| MockTokenizer tokenizer = whitespaceMockTokenizer(reader); |
| // if we are consuming all tokens, we can use the checks, otherwise we can't |
| tokenizer.setEnableChecks(consumeAll); |
| TokenStream stream = tokenizer; |
| stream = tokenFilterFactory("Shingle", |
| "minShingleSize", "2", |
| "maxShingleSize", "3", |
| "outputUnigrams", "true").create(stream); |
| stream = tokenFilterFactory("LimitTokenPosition", |
| LimitTokenPositionFilterFactory.MAX_TOKEN_POSITION_KEY, "1", |
| LimitTokenPositionFilterFactory.CONSUME_ALL_TOKENS_KEY, Boolean.toString(consumeAll) |
| ).create(stream); |
| assertTokenStreamContents(stream, new String[]{"one", "one two", "one two three"}); |
| } |
| } |
| |
| /** |
| * Test that bogus arguments result in exception |
| */ |
| public void testBogusArguments() throws Exception { |
| IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> { |
| tokenFilterFactory("LimitTokenPosition", |
| "maxTokenPosition", "3", |
| "bogusArg", "bogusValue"); |
| }); |
| assertTrue(expected.getMessage().contains("Unknown parameters")); |
| } |
| } |