Tests for Base64Utils results between JDK 8 and Commons Codec

Issue: SPR-13146

spring-core/src/main/java/org/springframework/util/Base64Utils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -125,7 +125,7 @@ public abstract class Base64Utils {
 	}
 
 
-	private interface Base64Delegate {
+	interface Base64Delegate {
 
 		byte[] encode(byte[] src);
 
@@ -134,7 +134,7 @@ public abstract class Base64Utils {
 
 
 	@UsesJava8
-	private static class JdkBase64Delegate implements Base64Delegate {
+	static class JdkBase64Delegate implements Base64Delegate {
 
 		public byte[] encode(byte[] src) {
 			if (src == null || src.length == 0) {
@@ -152,7 +152,7 @@ public abstract class Base64Utils {
 	}
 
 
-	private static class CommonsCodecBase64Delegate implements Base64Delegate {
+	static class CommonsCodecBase64Delegate implements Base64Delegate {
 
 		private final org.apache.commons.codec.binary.Base64 base64 = new org.apache.commons.codec.binary.Base64();
 

spring-core/src/test/java/org/springframework/util/Base64UtilsTests.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2002-2015 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 org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * @author Juergen Hoeller
+ */
+public class Base64UtilsTests {
+
+	@Test
+	public void jdk8VsCommonsCodec() throws UnsupportedEncodingException {
+		Base64Utils.Base64Delegate jdkDelegate = new Base64Utils.JdkBase64Delegate();
+		Base64Utils.Base64Delegate commonsDelegate = new Base64Utils.CommonsCodecBase64Delegate();
+
+		byte[] bytes = new byte[]
+				{-0x4f, 0xa, -0x73, -0x4f, 0x64, -0x20, 0x75, 0x41, 0x5, -0x49, -0x57, -0x65, -0x19, 0x2e, 0x3f, -0x1b};
+		assertArrayEquals(jdkDelegate.encode(bytes), commonsDelegate.encode(bytes));
+
+		bytes = "Hello World".getBytes("UTF-8");
+		assertArrayEquals(jdkDelegate.encode(bytes), commonsDelegate.encode(bytes));
+
+		bytes = "Hello World\r\nSecond Line".getBytes("UTF-8");
+		assertArrayEquals(jdkDelegate.encode(bytes), commonsDelegate.encode(bytes));
+
+		bytes = "Hello World\r\nSecond Line\r\n".getBytes("UTF-8");
+		assertArrayEquals(jdkDelegate.encode(bytes), commonsDelegate.encode(bytes));
+	}
+
+}

spring-core/src/test/java/org/springframework/util/DigestUtilsTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2015 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.
@@ -23,20 +23,25 @@ import org.junit.Test;
 
 import static org.junit.Assert.*;
 
+/**
+ * @author Arjen Poutsma
+ */
 public class DigestUtilsTests {
 
 	private byte[] bytes;
 
+
 	@Before
 	public void createBytes() throws UnsupportedEncodingException {
 		bytes = "Hello World".getBytes("UTF-8");
 	}
 
+
 	@Test
 	public void md5() {
 		byte[] result = DigestUtils.md5Digest(bytes);
-		byte[] expected = new byte[]{-0x4f, 0xa, -0x73, -0x4f, 0x64, -0x20, 0x75, 0x41, 0x5, -0x49, -0x57, -0x65, -0x19,
-				0x2e, 0x3f, -0x1b};
+		byte[] expected = new byte[]
+				{-0x4f, 0xa, -0x73, -0x4f, 0x64, -0x20, 0x75, 0x41, 0x5, -0x49, -0x57, -0x65, -0x19, 0x2e, 0x3f, -0x1b};
 		assertArrayEquals("Invalid hash", expected, result);
 	}
 
@@ -53,5 +58,4 @@ public class DigestUtilsTests {
 		assertEquals("Invalid hash", "b10a8db164e0754105b7a99be72e3fe5", builder.toString());
 	}
 
-
-}
+}