1 /*
2 * Copyright (C) 2013, Robin Stocker <robin@nibor.org>
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 package org.eclipse.jgit.util;
44
45 import static java.nio.charset.StandardCharsets.UTF_8;
46 import static org.junit.Assert.assertEquals;
47 import static org.junit.Assert.assertNotNull;
48
49 import org.eclipse.jgit.junit.RepositoryTestCase;
50 import org.junit.Test;
51
52 public class RawSubStringPatternTest extends RepositoryTestCase {
53
54 @Test
55 public void testBoundary() {
56 assertMatchResult("a", "a", 0);
57 assertMatchResult("a", "abcd", 0);
58 assertMatchResult("ab", "abcd", 0);
59 assertMatchResult("abcd", "abcd", 0);
60 assertMatchResult("bc", "abcd", 1);
61 assertMatchResult("bcd", "abcd", 1);
62 assertMatchResult("cd", "abcd", 2);
63 assertMatchResult("d", "abcd", 3);
64 assertMatchResult("abab", "abaabab", 3);
65 }
66
67 @Test
68 public void testNoMatches() {
69 assertMatchResult("a", "", -1);
70 assertMatchResult("a", "b", -1);
71 assertMatchResult("abab", "abaaba", -1);
72 assertMatchResult("ab", "ddda", -1);
73 }
74
75 @Test
76 public void testCaseInsensitive() {
77 assertMatchResult("a", "A", 0);
78 assertMatchResult("A", "a", 0);
79 assertMatchResult("Ab", "aB", 0);
80 assertMatchResult("aB", "Ab", 0);
81 }
82
83 @Test(expected = IllegalArgumentException.class)
84 public void testEmptyPattern() {
85 assertNotNull(new RawSubStringPattern(""));
86 }
87
88 private static void assertMatchResult(String pattern, String input, int position) {
89 RawSubStringPattern p = new RawSubStringPattern(pattern);
90 assertEquals("Expected match result " + position + " with input "
91 + input + " for pattern " + pattern,
92 position, p.match(raw(input)));
93 }
94
95 private static RawCharSequence raw(String text) {
96 byte[] bytes = text.getBytes(UTF_8);
97 return new RawCharSequence(bytes, 0, bytes.length);
98 }
99 }