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    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  package org.apache.commons.fileupload.util.mime;
    18
    19  import static org.junit.Assert.assertEquals;
    20
    21  import java.io.UnsupportedEncodingException;
    22
    23  import org.junit.Test;
    24
    25  /**
    26   * Use the online <a href="http://dogmamix.com/MimeHeadersDecoder/">MimeHeadersDecoder</a>
    27   * to validate expected values.
    28   *
    29   * @since 1.3
    30   */
    31  public final class MimeUtilityTestCase {
    32
    33      @Test
    34      public void noNeedToDecode() throws Exception {
    35          assertEncoded("abc", "abc");
    36      }
    37
    38      @Test
    39      public void decodeUtf8QuotedPrintableEncoded() throws Exception {
    40          assertEncoded(" h\u00e9! \u00e0\u00e8\u00f4u !!!", "=?UTF-8?Q?_h=C3=A9!_=C3=A0=C3=A8=C3=B4u_!!!?=");
    41      }
    42
    43      @Test
    44      public void decodeUtf8Base64Encoded() throws Exception {
    45          assertEncoded(" h\u00e9! \u00e0\u00e8\u00f4u !!!", "=?UTF-8?B?IGjDqSEgw6DDqMO0dSAhISE=?=");
    46      }
    47
    48      @Test
    49      public void decodeIso88591Base64Encoded() throws Exception {
    50          assertEncoded("If you can read this you understand the example.",
    51                        "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?= =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
    52      }
    53
    54      @Test
    55      public void decodeIso88591Base64EncodedWithWhiteSpace() throws Exception {
    56          assertEncoded("If you can read this you understand the example.",
    57                  "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\t  \r\n   =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
    58      }
    59
    60      private static void assertEncoded(String expected, String encoded) throws Exception {
    61          assertEquals(expected, MimeUtility.decodeText(encoded));
    62      }
    63
    64      @Test(expected=UnsupportedEncodingException.class)
    65      public void decodeInvalidEncoding() throws Exception {
    66          MimeUtility.decodeText("=?invalid?B?xyz-?=");
    67      }
    68  }