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1   /*
2    * Copyright (C) 2010, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.util;
45  
46  import static org.eclipse.jgit.util.Base64.decode;
47  import static org.eclipse.jgit.util.Base64.encodeBytes;
48  import static org.junit.Assert.assertEquals;
49  import static org.junit.Assert.fail;
50  
51  import org.eclipse.jgit.junit.JGitTestUtil;
52  import org.eclipse.jgit.lib.Constants;
53  import org.junit.Test;
54  
55  public class Base64Test {
56  	@Test
57  	public void testEncode() {
58  		assertEquals("aGkK", encodeBytes(b("hi\n")));
59  		assertEquals("AAECDQoJcQ==", encodeBytes(b("\0\1\2\r\n\tq")));
60  	}
61  
62  	@Test
63  	public void testDecode() {
64  		JGitTestUtil.assertEquals(b("hi\n"), decode("aGkK"));
65  		JGitTestUtil.assertEquals(b("\0\1\2\r\n\tq"), decode("AAECDQoJcQ=="));
66  		JGitTestUtil.assertEquals(b("\0\1\2\r\n\tq"),
67  				decode("A A E\tC D\rQ o\nJ c Q=="));
68  		JGitTestUtil.assertEquals(b("\u000EB"), decode("DkL="));
69  	}
70  
71  	@Test
72  	public void testDecodeFail_NonBase64Character() {
73  		try {
74  			decode("! a bad base64 string !");
75  			fail("Accepted bad string in decode");
76  		} catch (IllegalArgumentException fail) {
77  			// Expected
78  		}
79  	}
80  
81  	@Test
82  	public void testEncodeMatchesDecode() {
83  		String[] testStrings = { "", //
84  				"cow", //
85  				"a", //
86  				"a secret string", //
87  				"\0\1\2\r\n\t" //
88  		};
89  		for (String e : testStrings)
90  			JGitTestUtil.assertEquals(b(e), decode(encodeBytes(b(e))));
91  	}
92  
93  	private static byte[] b(String str) {
94  		return Constants.encode(str);
95  	}
96  
97  }