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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  
18  package org.apache.commons.lang3;
19  
20  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
21  import static org.junit.jupiter.api.Assertions.assertEquals;
22  import static org.junit.jupiter.api.Assertions.assertNull;
23  import static org.junit.jupiter.api.Assertions.assertSame;
24  
25  import java.util.function.IntFunction;
26  import java.util.function.Supplier;
27  
28  import org.junit.jupiter.api.Test;
29  
30  public class ArrayUtilsSetTest extends AbstractLangTest {
31  
32      @Test
33      public void testSetAll_IntFunction() {
34          final IntFunction<?> nullIntFunction = null;
35          assertNull(ArrayUtils.setAll(null, nullIntFunction));
36          assertArrayEquals(null, ArrayUtils.setAll(null, nullIntFunction));
37          assertArrayEquals(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, ArrayUtils.setAll(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, nullIntFunction));
38          assertArrayEquals(ArrayUtils.EMPTY_OBJECT_ARRAY, ArrayUtils.setAll(ArrayUtils.EMPTY_OBJECT_ARRAY, nullIntFunction));
39          final Integer[] array = new Integer[10];
40          final Integer[] array2 = ArrayUtils.setAll(array, Integer::valueOf);
41          assertSame(array, array2);
42          for (int i = 0; i < array.length; i++) {
43              assertEquals(i, array[i].intValue());
44          }
45      }
46  
47      @Test
48      public void testSetAll_Suppiler() {
49          final Supplier<?> nullSupplier = null;
50          assertNull(ArrayUtils.setAll(null, nullSupplier));
51          assertArrayEquals(null, ArrayUtils.setAll(null, nullSupplier));
52          assertArrayEquals(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, ArrayUtils.setAll(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, nullSupplier));
53          assertArrayEquals(ArrayUtils.EMPTY_OBJECT_ARRAY, ArrayUtils.setAll(ArrayUtils.EMPTY_OBJECT_ARRAY, nullSupplier));
54          final String[] array = new String[10];
55          final String[] array2 = ArrayUtils.setAll(array, () -> StringUtils.EMPTY);
56          assertSame(array, array2);
57          for (final String s : array) {
58              assertEquals(StringUtils.EMPTY, s);
59          }
60      }
61  }