1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package libcore.io; 19 20import java.util.Arrays; 21import junit.framework.TestCase; 22 23public final class Base64Test extends TestCase { 24 25 public void testDecodeEmpty() throws Exception { 26 assertEquals("[]", Arrays.toString(Base64.decode(new byte[0]))); 27 } 28 29 public void testEncode() throws Exception { 30 assertEncoded(""); 31 assertEncoded("Eg==", 0x12); 32 assertEncoded("EjQ=", 0x12, 0x34 ); 33 assertEncoded("EjRW", 0x12, 0x34, 0x56); 34 assertEncoded("EjRWeA==", 0x12, 0x34, 0x56, 0x78); 35 assertEncoded("EjRWeJo=", 0x12, 0x34, 0x56, 0x78, 0x9A); 36 assertEncoded("EjRWeJq8", 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc); 37 } 38 39 public void testEncodeDoesNotWrap() { 40 int[] data = new int[61]; 41 Arrays.fill(data, 0xff); 42 String expected = "///////////////////////////////////////////////////////////////////////" 43 + "//////////w=="; // 84 chars 44 assertEncoded(expected, data); 45 } 46 47 public void assertEncoded(String expected , int... data) { 48 byte[] dataBytes = new byte[data.length]; 49 for (int i = 0; i < data.length; i++) { 50 dataBytes[i] = (byte) data[i]; 51 } 52 assertEquals(expected, Base64.encode(dataBytes)); 53 } 54} 55 56