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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.collections4.bloomfilter;
18  
19  import static org.junit.jupiter.api.Assertions.assertTrue;
20  
21  import java.util.ArrayList;
22  import java.util.List;
23  
24  import org.junit.jupiter.api.Test;
25  
26  public class BitMapProducerFromIndexProducerTest extends AbstractBitMapProducerTest {
27  
28      @Override
29      protected BitMapProducer createEmptyProducer() {
30          final IndexProducer iProducer = consumer -> true;
31          return BitMapProducer.fromIndexProducer(iProducer, 200);
32      }
33  
34      @Override
35      protected BitMapProducer createProducer() {
36          final IndexProducer iProducer = consumer -> consumer.test(0) && consumer.test(1) && consumer.test(63) && consumer.test(64)
37                  && consumer.test(127) && consumer.test(128);
38          return BitMapProducer.fromIndexProducer(iProducer, 200);
39      }
40  
41      @Test
42      public final void testFromIndexProducer() {
43          final List<Long> lst = new ArrayList<>();
44          createProducer().forEachBitMap(lst::add);
45          final long[] buckets = lst.stream().mapToLong(Long::longValue).toArray();
46          assertTrue(BitMap.contains(buckets, 0));
47          assertTrue(BitMap.contains(buckets, 1));
48          assertTrue(BitMap.contains(buckets, 63));
49          assertTrue(BitMap.contains(buckets, 64));
50          assertTrue(BitMap.contains(buckets, 127));
51          assertTrue(BitMap.contains(buckets, 128));
52      }
53  }