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1   /**
2    * Copyright (c) 2008-2012, 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  package biz.source_code.base64Coder;
17  
18  import java.io.UnsupportedEncodingException;
19  
20  import junit.framework.TestCase;
21  
22  import org.yaml.snakeyaml.external.biz.base64Coder.Base64Coder;
23  
24  public class Base64CoderTest extends TestCase {
25  
26      public void testDecode() throws UnsupportedEncodingException {
27          check("Aladdin:open sesame", "QWxhZGRpbjpvcGVuIHNlc2FtZQ==");
28          check("a", "YQ==");
29          check("aa", "YWE=");
30          check("a=", "YT0=");
31          check("", "");
32      }
33  
34      public void testFailure1() throws UnsupportedEncodingException {
35          try {
36              Base64Coder.decode("YQ=".toCharArray());
37              fail();
38          } catch (Exception e) {
39              assertEquals("Length of Base64 encoded input string is not a multiple of 4.",
40                      e.getMessage());
41          }
42      }
43  
44      public void testFailure2() throws UnsupportedEncodingException {
45          checkInvalid("\tWE=");
46          checkInvalid("Y\tE=");
47          checkInvalid("YW\t=");
48          checkInvalid("YWE\t");
49          //
50          checkInvalid("©WE=");
51          checkInvalid("Y©E=");
52          checkInvalid("YW©=");
53          checkInvalid("YWE©");
54      }
55  
56      private void checkInvalid(String encoded) {
57          try {
58              Base64Coder.decode(encoded.toCharArray());
59              fail("Illegal chanracter.");
60          } catch (Exception e) {
61              assertEquals("Illegal character in Base64 encoded data.", e.getMessage());
62          }
63      }
64  
65      private void check(String text, String encoded) throws UnsupportedEncodingException {
66          char[] s1 = Base64Coder.encode(text.getBytes("UTF-8"));
67          String t1 = new String(s1);
68          assertEquals(encoded, t1);
69          byte[] s2 = Base64Coder.decode(encoded.toCharArray());
70          String t2 = new String(s2, "UTF-8");
71          assertEquals(text, t2);
72      }
73  }