1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.core5.util;
29
30 import org.junit.jupiter.api.Assertions;
31 import org.junit.jupiter.api.Test;
32
33 /**
34 * Unit tests for {@link LangUtils}.
35 *
36 */
37 public class TestLangUtils {
38
39 @Test
40 public void testBasicHash() {
41 final Integer i = Integer.valueOf(1234);
42 final int h1 = LangUtils.hashCode(LangUtils.HASH_SEED, i.hashCode());
43 final int h2 = LangUtils.hashCode(LangUtils.HASH_SEED, i);
44 Assertions.assertEquals(h1, h2);
45 }
46
47 @Test
48 public void testNullObjectHash() {
49 final int h1 = LangUtils.hashCode(LangUtils.HASH_SEED, null);
50 final int h2 = LangUtils.hashCode(LangUtils.HASH_SEED, 0);
51 Assertions.assertEquals(h1, h2);
52 }
53
54 @Test
55 public void testBooleanHash() {
56 final int h1 = LangUtils.hashCode(LangUtils.HASH_SEED, true);
57 final int h2 = LangUtils.hashCode(LangUtils.HASH_SEED, false);
58 final int h3 = LangUtils.hashCode(LangUtils.HASH_SEED, true);
59 final int h4 = LangUtils.hashCode(LangUtils.HASH_SEED, false);
60 Assertions.assertTrue(h1 != h2);
61 Assertions.assertEquals(h1, h3);
62 Assertions.assertEquals(h2, h4);
63 }
64
65 }