/*
* ModeShape (http://www.modeshape.org)
*
* Licensed 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.modeshape.common.util;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsNull.notNullValue;
import static org.junit.Assert.assertThat;
import java.io.IOException;
import java.io.InputStream;
import java.security.NoSuchAlgorithmException;
import org.junit.Test;
import org.modeshape.common.util.SecureHash.Algorithm;
import org.modeshape.common.util.SecureHash.HashingInputStream;
public class SecureHashTest {
@Test
public void shouldCorrectlyComputeSecureHashUsingMD2() throws Exception {
assertCorrectlyComputeSecureHashUsing(Algorithm.MD2);
}
@Test
public void shouldCorrectlyComputeSecureHashUsingMD5() throws Exception {
assertCorrectlyComputeSecureHashUsing(Algorithm.MD5);
}
@Test
public void shouldCorrectlyComputeSecureHashUsingSHA1() throws Exception {
assertCorrectlyComputeSecureHashUsing(Algorithm.SHA_1);
}
@Test
public void shouldCorrectlyComputeSecureHashUsingSHA256() throws Exception {
assertCorrectlyComputeSecureHashUsing(Algorithm.SHA_256);
}
@Test
public void shouldCorrectlyComputeSecureHashUsingSHA384() throws Exception {
assertCorrectlyComputeSecureHashUsing(Algorithm.SHA_384);
}
protected void assertCorrectlyComputeSecureHashUsing( Algorithm algorithm ) throws Exception {
assertSecureHashStreamWorks(algorithm, "/org/modeshape/common/i18n/I18nTest$TestI18n_en.properties");
assertSecureHashStreamWorks(algorithm, "/org/modeshape/common/i18n/I18nTest$TestI18n_fr.properties");
assertSecureHashStreamWorks(algorithm, "/org/modeshape/common/i18n/MockI18n.properties");
assertSecureHashStreamWorks(algorithm, "/org/modeshape/common/util/additionalmime.types");
assertSecureHashStreamWorks(algorithm, "/org/modeshape/common/logging/LoggerTest.properties");
assertSecureHashStreamWorks(algorithm, "/log4j.properties");
assertSecureHashStreamWorks(algorithm, "/maven-metadata-repository.jboss.org.xml");
}
protected void assertSecureHashStreamWorks( Algorithm algorithm,
String resourceName ) throws IOException, NoSuchAlgorithmException {
// Find the content of the file ...
InputStream stream = getClass().getResourceAsStream(resourceName);
assertThat(stream, is(notNullValue()));
byte[] bytesThruStream = IoUtil.readBytes(stream);
// Find the secure hash of the file ...
stream = getClass().getResourceAsStream(resourceName);
assertThat(stream, is(notNullValue()));
byte[] hashThruStream = null;
try {
hashThruStream = SecureHash.getHash(algorithm, stream);
} finally {
stream.close();
}
// Now try reading the stream using a hash stream ...
stream = getClass().getResourceAsStream(resourceName);
assertThat(stream, is(notNullValue()));
HashingInputStream hashingStream = SecureHash.createHashingStream(algorithm, stream);
byte[] bytesThruHashingStream = IoUtil.readBytes(hashingStream); // closes stream
byte[] hashThruHashingStream = hashingStream.getHash();
// The content should be the same ..
assertThat(bytesThruHashingStream, is(bytesThruStream));
// The hash should also be the same ...
assertThat(hashThruHashingStream, is(hashThruStream));
// System.out.println(algorithm.digestName() + "---> " + hashingStream.getHashAsHexString() + " of " + resourceName);
}
}