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.codec.digest;
18
19 import static org.junit.jupiter.api.Assertions.assertEquals;
20 import static org.junit.jupiter.api.Assertions.assertNotNull;
21 import static org.junit.jupiter.api.Assertions.assertThrows;
22 import static org.junit.jupiter.api.Assertions.assertTrue;
23
24 import org.junit.jupiter.api.Test;
25
26 public class CryptTest {
27
28 @Test
29 public void testCrypt() {
30 assertNotNull(new Crypt()); // just for Test Coverage
31 }
32
33 @Test
34 public void testCryptWithBytes() {
35 final byte[] keyBytes = { 'b', 'y', 't', 'e' };
36 final String hash = Crypt.crypt(keyBytes);
37 assertEquals(hash, Crypt.crypt("byte", hash));
38 }
39
40 /**
41 * An empty string as salt is invalid.
42 *
43 * The C and Perl implementations return an empty string, PHP threads it
44 * as NULL. Our implementation should throw an Exception as any resulting
45 * hash would not be verifiable with other implementations of crypt().
46 */
47 @Test
48 public void testCryptWithEmptySalt() {
49 assertThrows(IllegalArgumentException.class, () -> Crypt.crypt("secret", ""));
50 }
51
52 @Test
53 public void testDefaultCryptVariant() {
54 // If salt is null or completely omitted, a random "$6$" is used.
55 assertTrue(Crypt.crypt("secret").startsWith("$6$"));
56 assertTrue(Crypt.crypt("secret", null).startsWith("$6$"));
57 }
58
59 }