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Java example source code file (Base64Test.java)

This example Java source code file (Base64Test.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

a1udewqcmaawhqydvr0obbyefgwljakjwigqw61pgll/zlxj4iirmb8ga1udiwqymbaafa2frbtg\n, baymbdiwntkwcwydvr0pbaqdagxgmakga1udewqcmaawhqydvr0obbyefgwljakj\n, bgebeaqejgwkmgrlyzi0mgytoti2os00mdy5lwe2mtytyjjmnti0zja2zge0mcmg\n, bob7pzyc24sf5gjmohxhasxmrnyebdtsaiqrgz0m0pisogsfetu/w0htltoqwddckphhesakhvxa\n, bytebuf, certificatefactory, exception, jgwkmgrlyzi0mgytoti2os00mdy5lwe2mtytyjjmnti0zja2zge0mcmgcisgaqqbjchbzweefqwt\n, miicqjccajggawibagici1ywcqyhkozizj0eatammsqwigydvqqddbtucnvzdgvk\n, ohxhasxmrnyebdtsaiqrgz0m0pisogsfetu/w0htltoqwddckphhesakhvxa6ebl\n, string, test, x509certificate, zcbuagluiensawvuddb2mbagbyqgsm49agegbsubbaaia2iabob7pzyc24sf5gjm\n

The Base64Test.java Java example source code

/*
 * Copyright 2015 The Netty Project
 *
 * The Netty Project 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 io.netty.handler.codec.base64;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.util.CharsetUtil;
import org.junit.Test;


import java.io.ByteArrayInputStream;
import java.nio.charset.Charset;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

import static io.netty.buffer.Unpooled.copiedBuffer;
import static org.junit.Assert.assertEquals;

public class Base64Test {

    @Test
    public void testNotAddNewLineWhenEndOnLimit() {
        ByteBuf src = copiedBuffer("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcde",
                CharsetUtil.US_ASCII);
        ByteBuf expectedEncoded =
                copiedBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXphYmNkZWZnaGlqa2xtbm9wcXJzdHV2d3h5emFiY2Rl",
                        CharsetUtil.US_ASCII);
        testEncode(src, expectedEncoded);
    }

    @Test
    public void testAddNewLine() {
        ByteBuf src = copiedBuffer("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz12345678",
                CharsetUtil.US_ASCII);
        ByteBuf expectedEncoded =
                copiedBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXphYmNkZWZnaGlqa2xtbm9wcXJzdHV2d3h5ejEyMzQ1\nNjc4",
                        CharsetUtil.US_ASCII);
        testEncode(src, expectedEncoded);
    }

    @Test
    public void testEncodeEmpty() {
        ByteBuf src = Unpooled.EMPTY_BUFFER;
        ByteBuf expectedEncoded = Unpooled.EMPTY_BUFFER;
        testEncode(src, expectedEncoded);
    }

    @Test
    public void testPaddingNewline() throws Exception {
        String cert = "-----BEGIN CERTIFICATE-----\n" +
                "MIICqjCCAjGgAwIBAgICI1YwCQYHKoZIzj0EATAmMSQwIgYDVQQDDBtUcnVzdGVk\n" +
                "IFRoaW4gQ2xpZW50IFJvb3QgQ0EwIhcRMTYwMTI0MTU0OTQ1LTA2MDAXDTE2MDQy\n" +
                "NTIyNDk0NVowYzEwMC4GA1UEAwwnREMgMGRlYzI0MGYtOTI2OS00MDY5LWE2MTYt\n" +
                "YjJmNTI0ZjA2ZGE0MREwDwYDVQQLDAhEQyBJUFNFQzEcMBoGA1UECgwTVHJ1c3Rl\n" +
                "ZCBUaGluIENsaWVudDB2MBAGByqGSM49AgEGBSuBBAAiA2IABOB7pZYC24sF5gJm\n" +
                "OHXhasxmrNYebdtSAiQRgz0M0pIsogsFeTU/W0HTlTOqwDDckphHESAKHVxa6EBL\n" +
                "d+/8HYZ1AaCmXtG73XpaOyaRr3TipJl2IaJzwuehgDHs0L+qcqOB8TCB7jAwBgYr\n" +
                "BgEBEAQEJgwkMGRlYzI0MGYtOTI2OS00MDY5LWE2MTYtYjJmNTI0ZjA2ZGE0MCMG\n" +
                "CisGAQQBjCHbZwEEFQwTNDkwNzUyMjc1NjM3MTE3Mjg5NjAUBgorBgEEAYwh22cC\n" +
                "BAYMBDIwNTkwCwYDVR0PBAQDAgXgMAkGA1UdEwQCMAAwHQYDVR0OBBYEFGWljaKj\n" +
                "wiGqW61PgLL/zLxj4iirMB8GA1UdIwQYMBaAFA2FRBtG/dGnl0iXP2uKFwJHmEQI\n" +
                "MCcGA1UdJQQgMB4GCCsGAQUFBwMCBggrBgEFBQcDAQYIKwYBBQUHAwkwCQYHKoZI\n" +
                "zj0EAQNoADBlAjAQFP8rMLUxl36u8610LsSCiRG8pP3gjuLaaJMm3tjbVue/TI4C\n" +
                "z3iL8i96YWK0VxcCMQC7pf6Wk3RhUU2Sg6S9e6CiirFLDyzLkaWxuCnXcOwTvuXT\n" +
                "HUQSeUCp2Q6ygS5qKyc=\n" +
                "-----END CERTIFICATE-----";

        String expected = "MIICqjCCAjGgAwIBAgICI1YwCQYHKoZIzj0EATAmMSQwIgYDVQQDDBtUcnVzdGVkIFRoaW4gQ2xp\n" +
                "ZW50IFJvb3QgQ0EwIhcRMTYwMTI0MTU0OTQ1LTA2MDAXDTE2MDQyNTIyNDk0NVowYzEwMC4GA1UE\n" +
                "AwwnREMgMGRlYzI0MGYtOTI2OS00MDY5LWE2MTYtYjJmNTI0ZjA2ZGE0MREwDwYDVQQLDAhEQyBJ\n" +
                "UFNFQzEcMBoGA1UECgwTVHJ1c3RlZCBUaGluIENsaWVudDB2MBAGByqGSM49AgEGBSuBBAAiA2IA\n" +
                "BOB7pZYC24sF5gJmOHXhasxmrNYebdtSAiQRgz0M0pIsogsFeTU/W0HTlTOqwDDckphHESAKHVxa\n" +
                "6EBLd+/8HYZ1AaCmXtG73XpaOyaRr3TipJl2IaJzwuehgDHs0L+qcqOB8TCB7jAwBgYrBgEBEAQE\n" +
                "JgwkMGRlYzI0MGYtOTI2OS00MDY5LWE2MTYtYjJmNTI0ZjA2ZGE0MCMGCisGAQQBjCHbZwEEFQwT\n" +
                "NDkwNzUyMjc1NjM3MTE3Mjg5NjAUBgorBgEEAYwh22cCBAYMBDIwNTkwCwYDVR0PBAQDAgXgMAkG\n" +
                "A1UdEwQCMAAwHQYDVR0OBBYEFGWljaKjwiGqW61PgLL/zLxj4iirMB8GA1UdIwQYMBaAFA2FRBtG\n" +
                "/dGnl0iXP2uKFwJHmEQIMCcGA1UdJQQgMB4GCCsGAQUFBwMCBggrBgEFBQcDAQYIKwYBBQUHAwkw\n" +
                "CQYHKoZIzj0EAQNoADBlAjAQFP8rMLUxl36u8610LsSCiRG8pP3gjuLaaJMm3tjbVue/TI4Cz3iL\n" +
                "8i96YWK0VxcCMQC7pf6Wk3RhUU2Sg6S9e6CiirFLDyzLkaWxuCnXcOwTvuXTHUQSeUCp2Q6ygS5q\n" +
                "Kyc=";

        ByteBuf src =  Unpooled.wrappedBuffer(certFromString(cert).getEncoded());
        ByteBuf expectedEncoded = copiedBuffer(expected, CharsetUtil.US_ASCII);
        testEncode(src, expectedEncoded);
    }

    private static X509Certificate certFromString(String string) throws Exception {
        CertificateFactory factory = CertificateFactory.getInstance("X.509");
        ByteArrayInputStream bin = new ByteArrayInputStream(string.getBytes(CharsetUtil.US_ASCII));
        try {
            return (X509Certificate) factory.generateCertificate(bin);
        } finally {
            bin.close();
        }
    }

    private static void testEncode(ByteBuf src, ByteBuf expectedEncoded) {
        ByteBuf encoded = Base64.encode(src, true, Base64Dialect.STANDARD);
        try {
            assertEquals(expectedEncoded, encoded);
        } finally {
            src.release();
            expectedEncoded.release();
            encoded.release();
        }
    }
}

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