View Javadoc
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    *      https://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.stream;
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.assertNotNull;
23  
24  import org.apache.commons.lang3.AbstractLangTest;
25  import org.junit.jupiter.api.Test;
26  
27  /**
28   * Tests {@link IntStreams}.
29   */
30  class IntStreamsTest extends AbstractLangTest {
31  
32      @SuppressWarnings("deprecation")
33      @Test
34      void testDeprecatedConstructor() {
35          assertNotNull(new IntStreams().toString());
36      }
37  
38      @Test
39      void testOfArray() {
40          assertEquals(0, IntStreams.of((int[]) null).count());
41          assertEquals(1, IntStreams.of(1).count());
42          assertEquals(2, IntStreams.of(1, 2).count());
43      }
44  
45      @Test
46      void testRange() {
47          assertArrayEquals(new int[] { 0, 1 }, IntStreams.range(2).toArray());
48      }
49  
50      @Test
51      void testRangeClosed() {
52          assertArrayEquals(new int[] { 0, 1, 2 }, IntStreams.rangeClosed(2).toArray());
53      }
54  }