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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   https://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.commons.compress.compressors.gzip;
21  
22  import static org.junit.jupiter.api.Assertions.assertEquals;
23  import static org.junit.jupiter.api.Assertions.assertNotEquals;
24  
25  import org.apache.commons.compress.compressors.gzip.ExtraField.SubField;
26  import org.junit.jupiter.api.Test;
27  
28  /**
29   * Tests {@link ExtraField.SubField}.
30   */
31  class SubFieldTest {
32  
33      @Test
34      void testEquals() {
35          assertEquals(new SubField((byte) 0, (byte) 0, new byte[0]), new SubField((byte) 0, (byte) 0, new byte[0]));
36          assertEquals(new SubField((byte) 9, (byte) 9, new byte[9]), new SubField((byte) 9, (byte) 9, new byte[9]));
37          // not equals
38          assertNotEquals(new SubField((byte) 0, (byte) 9, new byte[9]), new SubField((byte) 9, (byte) 9, new byte[9]));
39          assertNotEquals(new SubField((byte) 9, (byte) 0, new byte[9]), new SubField((byte) 9, (byte) 9, new byte[9]));
40          assertNotEquals(new SubField((byte) 9, (byte) 9, new byte[0]), new SubField((byte) 9, (byte) 9, new byte[9]));
41          assertNotEquals(new SubField((byte) 9, (byte) 9, new byte[9]), new SubField((byte) 9, (byte) 9, new byte[] { 9 }));
42      }
43  
44      @Test
45      void testHashCode() {
46          assertEquals(new SubField((byte) 0, (byte) 0, new byte[0]).hashCode(), new SubField((byte) 0, (byte) 0, new byte[0]).hashCode());
47          assertEquals(new SubField((byte) 9, (byte) 9, new byte[9]).hashCode(), new SubField((byte) 9, (byte) 9, new byte[9]).hashCode());
48          // not equals
49          assertNotEquals(new SubField((byte) 0, (byte) 9, new byte[9]).hashCode(), new SubField((byte) 9, (byte) 9, new byte[9]).hashCode());
50          assertNotEquals(new SubField((byte) 9, (byte) 0, new byte[9]).hashCode(), new SubField((byte) 9, (byte) 9, new byte[9]).hashCode());
51          assertNotEquals(new SubField((byte) 9, (byte) 9, new byte[0]).hashCode(), new SubField((byte) 9, (byte) 9, new byte[9]).hashCode());
52          assertNotEquals(new SubField((byte) 9, (byte) 9, new byte[9]).hashCode(), new SubField((byte) 9, (byte) 9, new byte[] { 9 }).hashCode());
53      }
54  }