Home | History | Annotate | Download | only in base64Coder
      1 /**
      2  * Copyright (c) 2008, 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("YE=");
     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 }
     74