1 /*
2 * Copyright (C) 2008-2009, 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 java.nio.charset.StandardCharsets.ISO_8859_1;
47 import static org.junit.Assert.assertArrayEquals;
48 import static org.junit.Assert.assertNotNull;
49
50 import org.junit.Test;
51
52 public class RawParseUtils_LineMapTest {
53 @Test
54 public void testEmpty() {
55 final IntList map = RawParseUtils.lineMap(new byte[] {}, 0, 0);
56 assertNotNull(map);
57 assertArrayEquals(new int[]{Integer.MIN_VALUE, 0}, asInts(map));
58 }
59
60 @Test
61 public void testOneBlankLine() {
62 final IntList map = RawParseUtils.lineMap(new byte[] { '\n' }, 0, 1);
63 assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 1}, asInts(map));
64 }
65
66 @Test
67 public void testTwoLineFooBar() {
68 final byte[] buf = "foo\nbar\n".getBytes(ISO_8859_1);
69 final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
70 assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 4, buf.length}, asInts(map));
71 }
72
73 @Test
74 public void testTwoLineNoLF() {
75 final byte[] buf = "foo\nbar".getBytes(ISO_8859_1);
76 final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
77 assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 4, buf.length}, asInts(map));
78 }
79
80 @Test
81 public void testBinary() {
82 final byte[] buf = "xxxfoo\nb\0ar".getBytes(ISO_8859_1);
83 final IntList map = RawParseUtils.lineMap(buf, 3, buf.length);
84 assertArrayEquals(new int[]{Integer.MIN_VALUE, 3, buf.length}, asInts(map));
85 }
86
87 @Test
88 public void testFourLineBlanks() {
89 final byte[] buf = "foo\n\n\nbar\n".getBytes(ISO_8859_1);
90 final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
91
92 assertArrayEquals(new int[]{
93 Integer.MIN_VALUE, 0, 4, 5, 6, buf.length
94 }, asInts(map));
95 }
96
97 private int[] asInts(IntList l) {
98 int[] result = new int[l.size()];
99 for (int i = 0; i < l.size(); i++) {
100 result[i] = l.get(i);
101 }
102 return result;
103 }
104 }