/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.codec.digest;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Random;
import org.apache.commons.codec.binary.StringUtils;
import junit.framework.TestCase;
/**
* Tests DigestUtils methods.
*
* @author Apache Software Foundation
* @version $Id: DigestUtilsTest.java 800270 2009-08-03 09:32:08Z ggregory $
*/
public class DigestUtilsTest extends TestCase {
private byte[] testData = new byte[1024*1024];
private byte[] getBytesUtf8(String hashMe) {
return StringUtils.getBytesUtf8(hashMe);
}
/* (non-Javadoc)
* @see junit.framework.TestCase#setUp()
*/
protected void setUp() throws Exception {
new Random().nextBytes(testData);
}
public void testConstructable() {
new DigestUtils();
}
public void testInternalNoSuchAlgorithmException() {
try {
DigestUtils.getDigest("Bogus Bogus");
fail("A RuntimeException should have been thrown.");
} catch (RuntimeException e) {
// Expected exception.
}
}
public void testMd5Hex() throws IOException {
// Examples from RFC 1321
assertEquals("d41d8cd98f00b204e9800998ecf8427e", DigestUtils.md5Hex(""));
assertEquals("0cc175b9c0f1b6a831c399e269772661", DigestUtils.md5Hex("a"));
assertEquals("900150983cd24fb0d6963f7d28e17f72", DigestUtils.md5Hex("abc"));
assertEquals("f96b697d7cb7938d525a2f31aaf161d0", DigestUtils.md5Hex("message digest"));
assertEquals("c3fcd3d76192e4007dfb496cca67e13b", DigestUtils.md5Hex("abcdefghijklmnopqrstuvwxyz"));
assertEquals(
"d174ab98d277d9f5a5611c2c9f419d9f",
DigestUtils.md5Hex("ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789"));
assertEquals(
"57edf4a22be3c955ac49da2e2107b67a",
DigestUtils.md5Hex("1234567890123456789012345678901234567890" + "1234567890123456789012345678901234567890"));
assertEquals(DigestUtils.md5Hex(testData),
DigestUtils.md5Hex(new ByteArrayInputStream(testData)));
}
/**
* An MD5 hash converted to hex should always be 32 characters.
*/
public void testMD5HexLength() {
String hashMe = "this is some string that is longer than 32 characters";
String hash = DigestUtils.md5Hex(getBytesUtf8(hashMe));
assertEquals(32, hash.length());
hashMe = "length < 32";
hash = DigestUtils.md5Hex(getBytesUtf8(hashMe));
assertEquals(32, hash.length());
}
/**
* An MD5 hash should always be a 16 element byte[].
*/
public void testMD5Length() {
String hashMe = "this is some string that is longer than 16 characters";
byte[] hash = DigestUtils.md5(getBytesUtf8(hashMe));
assertEquals(16, hash.length);
hashMe = "length < 16";
hash = DigestUtils.md5(getBytesUtf8(hashMe));
assertEquals(16, hash.length);
}
public void testSha256() throws IOException {
// Examples from FIPS 180-2
assertEquals("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad",
DigestUtils.sha256Hex("abc"));
assertEquals("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad",
DigestUtils.sha256Hex(getBytesUtf8("abc")));
assertEquals("248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1",
DigestUtils.sha256Hex("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"));
assertEquals(DigestUtils.sha256Hex(testData),
DigestUtils.sha256Hex(new ByteArrayInputStream(testData)));
}
public void testSha384() throws IOException {
// Examples from FIPS 180-2
assertEquals("cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed" +
"8086072ba1e7cc2358baeca134c825a7",
DigestUtils.sha384Hex("abc"));
assertEquals("cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed" +
"8086072ba1e7cc2358baeca134c825a7",
DigestUtils.sha384Hex(getBytesUtf8("abc")));
assertEquals("09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712" +
"fcc7c71a557e2db966c3e9fa91746039",
DigestUtils.sha384Hex("abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" +
"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"));
assertEquals(DigestUtils.sha384Hex(testData),
DigestUtils.sha384Hex(new ByteArrayInputStream(testData)));
}
public void testSha512() throws IOException {
// Examples from FIPS 180-2
assertEquals("ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a" +
"2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f",
DigestUtils.sha512Hex("abc"));
assertEquals("ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a" +
"2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f",
DigestUtils.sha512Hex(getBytesUtf8("abc")));
assertEquals("8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018" +
"501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909",
DigestUtils.sha512Hex("abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" +
"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu"));
assertEquals(DigestUtils.sha512Hex(testData),
DigestUtils.sha512Hex(new ByteArrayInputStream(testData)));
}
public void testShaHex() throws IOException {
// Examples from FIPS 180-1
assertEquals("a9993e364706816aba3e25717850c26c9cd0d89d", DigestUtils.shaHex("abc"));
assertEquals("a9993e364706816aba3e25717850c26c9cd0d89d", DigestUtils.shaHex(getBytesUtf8("abc")));
assertEquals(
"84983e441c3bd26ebaae4aa1f95129e5e54670f1",
DigestUtils.shaHex("abcdbcdecdefdefgefghfghighij" + "hijkijkljklmklmnlmnomnopnopq"));
assertEquals(DigestUtils.shaHex(testData),
DigestUtils.shaHex(new ByteArrayInputStream(testData)));
}
}