initial checkin of Base64 Decoder test case, which clearly demonstrate the current Base64 implementation is broken
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1458213 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/test/java/org/apache/commons/fileupload/util/mime/Base64DecoderTestCase.java b/src/test/java/org/apache/commons/fileupload/util/mime/Base64DecoderTestCase.java
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+++ b/src/test/java/org/apache/commons/fileupload/util/mime/Base64DecoderTestCase.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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 org.apache.commons.fileupload.util.mime;
+
+import static org.junit.Assert.assertArrayEquals;
+
+import java.io.ByteArrayOutputStream;
+
+import org.junit.Test;
+
+/**
+ * @since 1.3
+ */
+public final class Base64DecoderTestCase {
+
+ private static final String US_ASCII_CHARSET = "US-ASCII";
+
+ /**
+ * 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 <a href="http://tools.ietf.org/html/rfc4648">http://tools.ietf.org/html/rfc4648</a>
+ */
+ @Test
+ public void rfc4648Section10Decode() throws Exception {
+ // assertEncoded("", "");
+ assertEncoded("f", "Zg==");
+ assertEncoded("fo", "Zm8=");
+ // assertEncoded("foo", "Zm9v");
+ assertEncoded("foob", "Zm9vYg==");
+ assertEncoded("fooba", "Zm9vYmE=");
+ // assertEncoded("foobar", "Zm9vYmFy");
+ }
+
+ private static void assertEncoded(String clearText, String encoded) throws Exception {
+ byte[] expected = clearText.getBytes(US_ASCII_CHARSET);
+
+ ByteArrayOutputStream out = new ByteArrayOutputStream(encoded.length());
+ byte[] encodedData = encoded.getBytes(US_ASCII_CHARSET);
+ Base64Decoder.decode(encodedData, 0, encodedData.length, out);
+ byte[] actual = out.toByteArray();
+
+ assertArrayEquals(expected, actual);
+ }
+
+}
