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/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.util;
import java.io.UnsupportedEncodingException;
import javax.xml.bind.DatatypeConverter;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Juergen Hoeller
* @since 4.2
*/
public class Base64UtilsTests {
@Test
public void encode() throws UnsupportedEncodingException {
byte[] bytes = new byte[]
{-0x4f, 0xa, -0x73, -0x4f, 0x64, -0x20, 0x75, 0x41, 0x5, -0x49, -0x57, -0x65, -0x19, 0x2e, 0x3f, -0x1b};
assertArrayEquals(bytes, Base64Utils.decode(Base64Utils.encode(bytes)));
bytes = "Hello World".getBytes("UTF-8");
assertArrayEquals(bytes, Base64Utils.decode(Base64Utils.encode(bytes)));
bytes = "Hello World\r\nSecond Line".getBytes("UTF-8");
assertArrayEquals(bytes, Base64Utils.decode(Base64Utils.encode(bytes)));
bytes = "Hello World\r\nSecond Line\r\n".getBytes("UTF-8");
assertArrayEquals(bytes, Base64Utils.decode(Base64Utils.encode(bytes)));
bytes = new byte[] { (byte) 0xfb, (byte) 0xf0 };
assertArrayEquals("+/A=".getBytes(), Base64Utils.encode(bytes));
assertArrayEquals(bytes, Base64Utils.decode(Base64Utils.encode(bytes)));
assertArrayEquals("-_A=".getBytes(), Base64Utils.encodeUrlSafe(bytes));
assertArrayEquals(bytes, Base64Utils.decodeUrlSafe(Base64Utils.encodeUrlSafe(bytes)));
}
@Test
public void encodeToStringWithJdk8VsJaxb() throws UnsupportedEncodingException {
byte[] bytes = new byte[]
{-0x4f, 0xa, -0x73, -0x4f, 0x64, -0x20, 0x75, 0x41, 0x5, -0x49, -0x57, -0x65, -0x19, 0x2e, 0x3f, -0x1b};
assertEquals(Base64Utils.encodeToString(bytes), DatatypeConverter.printBase64Binary(bytes));
assertArrayEquals(bytes, Base64Utils.decodeFromString(Base64Utils.encodeToString(bytes)));
assertArrayEquals(bytes, DatatypeConverter.parseBase64Binary(DatatypeConverter.printBase64Binary(bytes)));
bytes = "Hello World".getBytes("UTF-8");
assertEquals(Base64Utils.encodeToString(bytes), DatatypeConverter.printBase64Binary(bytes));
assertArrayEquals(bytes, Base64Utils.decodeFromString(Base64Utils.encodeToString(bytes)));
assertArrayEquals(bytes, DatatypeConverter.parseBase64Binary(DatatypeConverter.printBase64Binary(bytes)));
bytes = "Hello World\r\nSecond Line".getBytes("UTF-8");
assertEquals(Base64Utils.encodeToString(bytes), DatatypeConverter.printBase64Binary(bytes));
assertArrayEquals(bytes, Base64Utils.decodeFromString(Base64Utils.encodeToString(bytes)));
assertArrayEquals(bytes, DatatypeConverter.parseBase64Binary(DatatypeConverter.printBase64Binary(bytes)));
bytes = "Hello World\r\nSecond Line\r\n".getBytes("UTF-8");
assertEquals(Base64Utils.encodeToString(bytes), DatatypeConverter.printBase64Binary(bytes));
assertArrayEquals(bytes, Base64Utils.decodeFromString(Base64Utils.encodeToString(bytes)));
assertArrayEquals(bytes, DatatypeConverter.parseBase64Binary(DatatypeConverter.printBase64Binary(bytes)));
}
@Test
public void encodeDecodeUrlSafe() {
byte[] bytes = new byte[] { (byte) 0xfb, (byte) 0xf0 };
assertArrayEquals("-_A=".getBytes(), Base64Utils.encodeUrlSafe(bytes));
assertArrayEquals(bytes, Base64Utils.decodeUrlSafe(Base64Utils.encodeUrlSafe(bytes)));
assertEquals("-_A=", Base64Utils.encodeToUrlSafeString(bytes));
assertArrayEquals(bytes, Base64Utils.decodeFromUrlSafeString(Base64Utils.encodeToUrlSafeString(bytes)));
}
}