Java tutorial
/* * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * 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://aws.amazon.com/apache2.0 * * This file 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 com.amazonaws.util; import static org.junit.Assert.assertEquals; import org.apache.commons.io.FileUtils; import org.junit.Test; import java.io.ByteArrayInputStream; import java.io.File; import java.io.IOException; public class Md5UtilsTest { @Test public void testBytes() { byte[] md5 = Md5Utils.computeMD5Hash("Testing MD5".getBytes(StringUtils.UTF8)); assertEquals("0b4f503b8eb7714ce12402406895cf68", StringUtils.lowerCase(Base16.encodeAsString(md5))); String b64 = Md5Utils.md5AsBase64("Testing MD5".getBytes(StringUtils.UTF8)); assertEquals("C09QO463cUzhJAJAaJXPaA==", b64); } @Test public void testStream() throws IOException { byte[] md5 = Md5Utils.computeMD5Hash(new ByteArrayInputStream("Testing MD5".getBytes(StringUtils.UTF8))); assertEquals("0b4f503b8eb7714ce12402406895cf68", StringUtils.lowerCase(Base16.encodeAsString(md5))); String b64 = Md5Utils.md5AsBase64(new ByteArrayInputStream("Testing MD5".getBytes(StringUtils.UTF8))); assertEquals("C09QO463cUzhJAJAaJXPaA==", b64); } @Test public void testFile() throws Exception { File f = File.createTempFile("Md5UtilsTest-", "txt"); f.deleteOnExit(); FileUtils.writeStringToFile(f, "Testing MD5"); byte[] md5 = Md5Utils.computeMD5Hash(f); assertEquals("0b4f503b8eb7714ce12402406895cf68", StringUtils.lowerCase(Base16.encodeAsString(md5))); String b64 = Md5Utils.md5AsBase64(f); assertEquals("C09QO463cUzhJAJAaJXPaA==", b64); } }