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1   /**
2    * Copyright (c) 2008-2011, http://www.snakeyaml.org
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package biz.source_code.base64Coder;
18  
19  import java.io.UnsupportedEncodingException;
20  
21  import junit.framework.TestCase;
22  
23  import org.yaml.snakeyaml.external.biz.base64Coder.Base64Coder;
24  
25  public class Base64CoderTest extends TestCase {
26  
27      public void testDecode() throws UnsupportedEncodingException {
28          check("Aladdin:open sesame", "QWxhZGRpbjpvcGVuIHNlc2FtZQ==");
29          check("a", "YQ==");
30          check("aa", "YWE=");
31          check("a=", "YT0=");
32          check("", "");
33      }
34  
35      public void testFailure1() throws UnsupportedEncodingException {
36          try {
37              Base64Coder.decode("YQ=".toCharArray());
38              fail();
39          } catch (Exception e) {
40              assertEquals("Length of Base64 encoded input string is not a multiple of 4.",
41                      e.getMessage());
42          }
43      }
44  
45      public void testFailure2() throws UnsupportedEncodingException {
46          checkInvalid("\tWE=");
47          checkInvalid("Y\tE=");
48          checkInvalid("YW\t=");
49          checkInvalid("YWE\t");
50          //
51          checkInvalid("©WE=");
52          checkInvalid("Y©E=");
53          checkInvalid("YW©=");
54          checkInvalid("YWE©");
55      }
56  
57      private void checkInvalid(String encoded) {
58          try {
59              Base64Coder.decode(encoded.toCharArray());
60              fail("Illegal chanracter.");
61          } catch (Exception e) {
62              assertEquals("Illegal character in Base64 encoded data.", e.getMessage());
63          }
64      }
65  
66      private void check(String text, String encoded) throws UnsupportedEncodingException {
67          char[] s1 = Base64Coder.encode(text.getBytes("UTF-8"));
68          String t1 = new String(s1);
69          assertEquals(encoded, t1);
70          byte[] s2 = Base64Coder.decode(encoded.toCharArray());
71          String t2 = new String(s2, "UTF-8");
72          assertEquals(text, t2);
73      }
74  }