lucene/analysis/common/src/test/org/apache/lucene/analysis/core/TestTypeTokenFilterFactory.java

/*
 * 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.core;


import java.util.Set;

import org.apache.lucene.analysis.CannedTokenStream;
import org.apache.lucene.analysis.util.BaseTokenStreamFactoryTestCase;
import org.apache.lucene.analysis.util.TokenFilterFactory;

/**
 * Testcase for {@link TypeTokenFilterFactory}
 */
public class TestTypeTokenFilterFactory extends BaseTokenStreamFactoryTestCase {

  public void testInform() throws Exception {
    TypeTokenFilterFactory factory = (TypeTokenFilterFactory) tokenFilterFactory("Type",
        "types", "stoptypes-1.txt");
    Set<String> types = factory.getStopTypes();
    assertTrue("types is null and it shouldn't be", types != null);
    assertTrue("types Size: " + types.size() + " is not: " + 2, types.size() == 2);

    factory = (TypeTokenFilterFactory) tokenFilterFactory("Type",
        "types", "stoptypes-1.txt, stoptypes-2.txt",
        "useWhitelist", "true");
    types = factory.getStopTypes();
    assertTrue("types is null and it shouldn't be", types != null);
    assertTrue("types Size: " + types.size() + " is not: " + 4, types.size() == 4);
  }

  public void testCreationWithBlackList() throws Exception {
    TokenFilterFactory factory = tokenFilterFactory("Type",
        "types", "stoptypes-1.txt, stoptypes-2.txt");
    CannedTokenStream input = new CannedTokenStream();
    factory.create(input);
  }
  
  public void testCreationWithWhiteList() throws Exception {
    TokenFilterFactory factory = tokenFilterFactory("Type",
        "types", "stoptypes-1.txt, stoptypes-2.txt",
        "useWhitelist", "true");
    CannedTokenStream input = new CannedTokenStream();
    factory.create(input);
  }

  public void testMissingTypesParameter() throws Exception {
    // not supplying 'types' parameter should cause an IllegalArgumentException
    expectThrows(IllegalArgumentException.class, () -> {
      tokenFilterFactory("Type");
    });
  }
  
  /** Test that bogus arguments result in exception */
  public void testBogusArguments() throws Exception {
    IllegalArgumentException expected = expectThrows(IllegalArgumentException.class, () -> {
      tokenFilterFactory("Type", 
          "types", "stoptypes-1.txt", 
          "bogusArg", "bogusValue");
    });
    assertTrue(expected.getMessage().contains("Unknown parameters"));
  }
}