001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.codec.digest;
018
019import static org.junit.Assert.assertEquals;
020import static org.junit.Assert.assertNotNull;
021import static org.junit.Assert.assertTrue;
022
023import org.apache.commons.codec.Charsets;
024import org.junit.Test;
025
026public class Md5CryptTest {
027
028    @Test
029    public void testCtor() {
030        assertNotNull(new Md5Crypt()); // for code-coverage
031    }
032
033    @Test
034    public void testMd5CryptStrings() {
035        // empty data
036        assertEquals("$1$foo$9mS5ExwgIECGE5YKlD5o91", Crypt.crypt("", "$1$foo"));
037        // salt gets cut at dollar sign
038        assertEquals("$1$1234$ImZYBLmYC.rbBKg9ERxX70", Crypt.crypt("secret", "$1$1234"));
039        assertEquals("$1$1234$ImZYBLmYC.rbBKg9ERxX70", Crypt.crypt("secret", "$1$1234$567"));
040        assertEquals("$1$1234$ImZYBLmYC.rbBKg9ERxX70", Crypt.crypt("secret", "$1$1234$567$890"));
041        // salt gets cut at maximum length
042        assertEquals("$1$12345678$hj0uLpdidjPhbMMZeno8X/", Crypt.crypt("secret", "$1$1234567890123456"));
043        assertEquals("$1$12345678$hj0uLpdidjPhbMMZeno8X/", Crypt.crypt("secret", "$1$123456789012345678"));
044    }
045
046    @Test
047    public void testMd5CryptBytes() {
048        // An empty Bytearray equals an empty String
049        assertEquals("$1$foo$9mS5ExwgIECGE5YKlD5o91", Crypt.crypt(new byte[0], "$1$foo"));
050        // UTF-8 stores \u00e4 "a with diaeresis" as two bytes 0xc3 0xa4.
051        assertEquals("$1$./$52agTEQZs877L9jyJnCNZ1", Crypt.crypt("t\u00e4st", "$1$./$"));
052        // ISO-8859-1 stores "a with diaeresis" as single byte 0xe4.
053        assertEquals("$1$./$J2UbKzGe0Cpe63WZAt6p//", Crypt.crypt("t\u00e4st".getBytes(Charsets.ISO_8859_1), "$1$./$"));
054    }
055
056    @Test
057    public void testMd5CryptExplicitCall() {
058        assertTrue(Md5Crypt.md5Crypt("secret".getBytes()).matches("^\\$1\\$[a-zA-Z0-9./]{0,8}\\$.{1,}$"));
059        assertTrue(Md5Crypt.md5Crypt("secret".getBytes(), null).matches("^\\$1\\$[a-zA-Z0-9./]{0,8}\\$.{1,}$"));
060    }
061
062    @Test
063    public void testMd5CryptLongInput() {
064        assertEquals("$1$1234$MoxekaNNUgfPRVqoeYjCD/", Crypt.crypt("12345678901234567890", "$1$1234"));
065    }
066
067    @Test(expected = NullPointerException.class)
068    public void testMd5CryptNullData() {
069        Md5Crypt.md5Crypt((byte[]) null);
070    }
071
072    @Test(expected = IllegalArgumentException.class)
073    public void testMd5CryptWithEmptySalt() {
074        Md5Crypt.md5Crypt("secret".getBytes(), "");
075    }
076}