New test methods testRfc4648 based on RFC 4648 that show our inconsistent handling of CR LF at the end of data. Failing assertions are //commented out.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@928129 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/test/org/apache/commons/codec/binary/Base64Test.java

@@ -517,6 +517,63 @@ public void testRfc1421Section6Dot8ChunkSizeDefinition() {
         assertEquals(64, Base64.PEM_CHUNK_SIZE);
     }
 
+    /**
+     * Tests RFC 4648 section 10 test vectors.
+     * <ul>
+     * <li>BASE64("") = ""</li>
+     * <li>BASE64("f") = "Zg=="</li>
+     * <li>BASE64("fo") = "Zm8="</li>
+     * <li>BASE64("foo") = "Zm9v"</li>
+     * <li>BASE64("foob") = "Zm9vYg=="</li>
+     * <li>BASE64("fooba") = "Zm9vYmE="</li>
+     * <li>BASE64("foobar") = "Zm9vYmFy"</li>
+     * </ul>
+     * 
+     * @see http://tools.ietf.org/html/rfc4648
+     */
+    public void testRfc4648Section10Decode() {
+        assertEquals("", StringUtils.newStringUsAscii(Base64.decodeBase64("")));
+        assertEquals("f", StringUtils.newStringUsAscii(Base64.decodeBase64("Zg==")));
+        assertEquals("fo", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm8=")));
+        assertEquals("foo", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9v")));
+        assertEquals("foob", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYg==")));
+        assertEquals("fooba", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYmE=")));
+        assertEquals("foobar", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYmFy")));
+    }
+    
+    public void testRfc4648Section10DecodeWithCrLf() {
+        assertEquals("", StringUtils.newStringUsAscii(Base64.decodeBase64("")));
+        assertEquals("f", StringUtils.newStringUsAscii(Base64.decodeBase64("Zg==" + Base64.CHUNK_SEPARATOR)));
+        assertEquals("fo", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm8=" + Base64.CHUNK_SEPARATOR)));
+        //assertEquals("foo", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9v" + Base64.CHUNK_SEPARATOR)));
+        assertEquals("foob", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYg==" + Base64.CHUNK_SEPARATOR)));
+        assertEquals("fooba", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYmE=" + Base64.CHUNK_SEPARATOR)));
+        //assertEquals("foobar", StringUtils.newStringUsAscii(Base64.decodeBase64("Zm9vYmFy" + Base64.CHUNK_SEPARATOR)));
+    }
+    
+    /**
+     * Tests RFC 4648 section 10 test vectors.
+     * <ul>
+     * <li>BASE64("") = ""</li>
+     * <li>BASE64("f") = "Zg=="</li>
+     * <li>BASE64("fo") = "Zm8="</li>
+     * <li>BASE64("foo") = "Zm9v"</li>
+     * <li>BASE64("foob") = "Zm9vYg=="</li>
+     * <li>BASE64("fooba") = "Zm9vYmE="</li>
+     * <li>BASE64("foobar") = "Zm9vYmFy"</li>
+     * </ul>
+     * 
+     * @see http://tools.ietf.org/html/rfc4648
+     */
+    public void testRfc4648Section10Encode() {
+        //assertEquals("Zg==", Base64.encodeBase64String(StringUtils.getBytesUtf8("f")));
+        //assertEquals("Zm8=", Base64.encodeBase64String(StringUtils.getBytesUtf8("fo")));
+        //assertEquals("Zm9v", Base64.encodeBase64String(StringUtils.getBytesUtf8("foo")));
+        //assertEquals("Zm9vYg==", Base64.encodeBase64String(StringUtils.getBytesUtf8("foob")));
+        //assertEquals("Zm9vYmE=", Base64.encodeBase64String(StringUtils.getBytesUtf8("fooba")));
+        //assertEquals("Zm9vYmFy", Base64.encodeBase64String(StringUtils.getBytesUtf8("foobar")));
+    }
+    
     public void testSingletons() {
         assertEquals("AA==", new String(Base64.encodeBase64(new byte[]{(byte) 0})));
         assertEquals("AQ==", new String(Base64.encodeBase64(new byte[]{(byte) 1})));