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 */
16package biz.source_code.base64Coder;
17
18import java.io.UnsupportedEncodingException;
19
20import junit.framework.TestCase;
21
22import org.yaml.snakeyaml.external.biz.base64Coder.Base64Coder;
23
24public 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}
74