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1   /*
2    * Copyright (C) 2016, Google Inc. and others
3    *
4    * This program and the accompanying materials are made available under the
5    * terms of the Eclipse Distribution License v. 1.0 which is available at
6    * https://www.eclipse.org/org/documents/edl-v10.php.
7    *
8    * SPDX-License-Identifier: BSD-3-Clause
9    */
10  
11  package org.eclipse.jgit.util;
12  
13  import static org.eclipse.jgit.util.Paths.compare;
14  import static org.eclipse.jgit.util.Paths.compareSameName;
15  import static org.junit.Assert.assertEquals;
16  import static org.junit.Assert.assertNull;
17  
18  import org.eclipse.jgit.lib.Constants;
19  import org.eclipse.jgit.lib.FileMode;
20  import org.junit.Test;
21  
22  public class PathsTest {
23  	@Test
24  	public void testStripTrailingSeparator() {
25  		assertNull(Paths.stripTrailingSeparator(null));
26  		assertEquals("", Paths.stripTrailingSeparator(""));
27  		assertEquals("a", Paths.stripTrailingSeparator("a"));
28  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo"));
29  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo/"));
30  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo//"));
31  		assertEquals("a/boo", Paths.stripTrailingSeparator("a/boo///"));
32  	}
33  
34  	@Test
35  	public void testPathCompare() {
36  		byte[] a = Constants.encode("afoo/bar.c");
37  		byte[] b = Constants.encode("bfoo/bar.c");
38  
39  		assertEquals(0, compare(a, 1, a.length, 0, b, 1, b.length, 0));
40  		assertEquals(-1, compare(a, 0, a.length, 0, b, 0, b.length, 0));
41  		assertEquals(1, compare(b, 0, b.length, 0, a, 0, a.length, 0));
42  
43  		a = Constants.encode("a");
44  		b = Constants.encode("aa");
45  		assertEquals(-97, compare(a, 0, a.length, 0, b, 0, b.length, 0));
46  		assertEquals(0, compare(a, 0, a.length, 0, b, 0, 1, 0));
47  		assertEquals(0, compare(a, 0, a.length, 0, b, 1, 2, 0));
48  		assertEquals(0, compareSameName(a, 0, a.length, b, 1, b.length, 0));
49  		assertEquals(0, compareSameName(a, 0, a.length, b, 0, 1, 0));
50  		assertEquals(-50, compareSameName(a, 0, a.length, b, 0, b.length, 0));
51  		assertEquals(97, compareSameName(b, 0, b.length, a, 0, a.length, 0));
52  
53  		a = Constants.encode("a");
54  		b = Constants.encode("a");
55  		assertEquals(0, compare(
56  				a, 0, a.length, FileMode.TREE.getBits(),
57  				b, 0, b.length, FileMode.TREE.getBits()));
58  		assertEquals(0, compare(
59  				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
60  				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
61  		assertEquals(-47, compare(
62  				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
63  				b, 0, b.length, FileMode.TREE.getBits()));
64  		assertEquals(47, compare(
65  				a, 0, a.length, FileMode.TREE.getBits(),
66  				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
67  
68  		assertEquals(0, compareSameName(
69  				a, 0, a.length,
70  				b, 0, b.length, FileMode.TREE.getBits()));
71  		assertEquals(0, compareSameName(
72  				a, 0, a.length,
73  				b, 0, b.length, FileMode.REGULAR_FILE.getBits()));
74  
75  		a = Constants.encode("a.c");
76  		b = Constants.encode("a");
77  		byte[] c = Constants.encode("a0c");
78  		assertEquals(-1, compare(
79  				a, 0, a.length, FileMode.REGULAR_FILE.getBits(),
80  				b, 0, b.length, FileMode.TREE.getBits()));
81  		assertEquals(-1, compare(
82  				b, 0, b.length, FileMode.TREE.getBits(),
83  				c, 0, c.length, FileMode.REGULAR_FILE.getBits()));
84  	}
85  }