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1   /*
2    * Copyright (C) 2016, 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
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29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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42   */
43  
44  package org.eclipse.jgit.util;
45  
46  import static org.eclipse.jgit.util.Paths.compare;
47  import static org.eclipse.jgit.util.Paths.compareSameName;
48  import static org.junit.Assert.assertEquals;
49  import static org.junit.Assert.assertNull;
50  
51  import org.eclipse.jgit.lib.Constants;
52  import org.eclipse.jgit.lib.FileMode;
53  import org.junit.Test;
54  
55  public class PathsTest {
56  	@Test
57  	public void testStripTrailingSeparator() {
58  		assertNull(Paths.stripTrailingSeparator(null));
59  		assertEquals("", Paths.stripTrailingSeparator(""));
60  		assertEquals("a", Paths.stripTrailingSeparator("a"));
61  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo"));
62  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo/"));
63  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo//"));
64  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo///"));
65  	}
66  
67  	@Test
68  	public void testPathCompare() {
69  		byte[] a = Constants.encode("afoo/bar.c");
70  		byte[] b = Constants.encode("bfoo/bar.c");
71  
72  		assertEquals(0, compare(a, 1, a.length, 0, b, 1, b.length, 0));
73  		assertEquals(-1, compare(a, 0, a.length, 0, b, 0, b.length, 0));
74  		assertEquals(1, compare(b, 0, b.length, 0, a, 0, a.length, 0));
75  
76  		a = Constants.encode("a");
77  		b = Constants.encode("aa");
78  		assertEquals(-97, compare(a, 0, a.length, 0, b, 0, b.length, 0));
79  		assertEquals(0, compare(a, 0, a.length, 0, b, 0, 1, 0));
80  		assertEquals(0, compare(a, 0, a.length, 0, b, 1, 2, 0));
81  		assertEquals(0, compareSameName(a, 0, a.length, b, 1, b.length, 0));
82  		assertEquals(0, compareSameName(a, 0, a.length, b, 0, 1, 0));
83  		assertEquals(-50, compareSameName(a, 0, a.length, b, 0, b.length, 0));
84  		assertEquals(97, compareSameName(b, 0, b.length, a, 0, a.length, 0));
85  
86  		a = Constants.encode("a");
87  		b = Constants.encode("a");
88  		assertEquals(0, compare(
89  				a, 0, a.length, FileMode.TREE.getBits(),
90  				b, 0, b.length, FileMode.TREE.getBits()));
91  		assertEquals(0, compare(
92  				a, 0, a.length, FileMode.TREE.getBits(),
93  				b, 0, b.length, FileMode.GITLINK.getBits()));
94  		assertEquals(0, compare(
95  				a, 0, a.length, FileMode.GITLINK.getBits(),
96  				b, 0, b.length, FileMode.GITLINK.getBits()));
97  		assertEquals(0, compare(
98  				a, 0, a.length, FileMode.GITLINK.getBits(),
99  				b, 0, b.length, FileMode.TREE.getBits()));
100 		assertEquals(0, compare(
101 				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
102 				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
103 		assertEquals(-47, compare(
104 				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
105 				b, 0, b.length, FileMode.TREE.getBits()));
106 		assertEquals(0, compare(
107 				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
108 				b, 0, b.length, FileMode.GITLINK.getBits()));
109 		assertEquals(47, compare(
110 				a, 0, a.length, FileMode.TREE.getBits(),
111 				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
112 		assertEquals(0, compare(
113 				a, 0, a.length, FileMode.GITLINK.getBits(),
114 				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
115 
116 		assertEquals(0, compareSameName(
117 				a, 0, a.length,
118 				b, 0, b.length, FileMode.TREE.getBits()));
119 		assertEquals(0, compareSameName(
120 				a, 0, a.length,
121 				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
122 		assertEquals(0, compareSameName(
123 				a, 0, a.length,
124 				b, 0, b.length, FileMode.GITLINK.getBits()));
125 
126 		a = Constants.encode("a.c");
127 		b = Constants.encode("a");
128 		byte[] c = Constants.encode("a0c");
129 		assertEquals(-1, compare(
130 				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
131 				b, 0, b.length, FileMode.TREE.getBits()));
132 		assertEquals(-1, compare(
133 				b, 0, b.length, FileMode.TREE.getBits(),
134 				c, 0, c.length, FileMode.REGULAR_FILE.getBits()));
135 	}
136 }