1 /*
2 * Copyright (C) 2012, 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.internal.storage.file;
45
46 import static org.junit.Assert.assertFalse;
47 import static org.junit.Assert.assertTrue;
48
49 import org.junit.Test;
50
51 import com.googlecode.javaewah.EWAHCompressedBitmap;
52
53 public class InflatingBitSetTest {
54
55 @Test
56 public void testMaybeContains() {
57 EWAHCompressedBitmap ecb = new EWAHCompressedBitmap();
58 ecb.set(63);
59 ecb.set(64);
60 ecb.set(128);
61
62 InflatingBitSet ibs = new InflatingBitSet(ecb);
63 assertTrue(ibs.maybeContains(0));
64 assertFalse(ibs.contains(0)); // Advance
65 assertFalse(ibs.maybeContains(0));
66 assertTrue(ibs.maybeContains(63));
67 assertTrue(ibs.maybeContains(64));
68 assertTrue(ibs.maybeContains(65));
69 assertFalse(ibs.maybeContains(129));
70 }
71
72 @Test
73 public void testContainsMany() {
74 EWAHCompressedBitmap ecb = new EWAHCompressedBitmap();
75 ecb.set(64);
76 ecb.set(65);
77 ecb.set(1024);
78
79 InflatingBitSet ibs = new InflatingBitSet(ecb);
80 assertFalse(ibs.contains(0));
81 assertTrue(ibs.contains(64));
82 assertTrue(ibs.contains(65));
83 assertFalse(ibs.contains(66));
84 assertTrue(ibs.contains(1024));
85 assertFalse(ibs.contains(1025));
86 }
87
88 @Test
89 public void testContainsOne() {
90 EWAHCompressedBitmap ecb = new EWAHCompressedBitmap();
91 ecb.set(64);
92
93 InflatingBitSet ibs = new InflatingBitSet(ecb);
94 assertTrue(ibs.contains(64));
95 assertTrue(ibs.contains(64));
96 assertFalse(ibs.contains(65));
97 assertFalse(ibs.contains(63));
98 }
99
100 @Test
101 public void testContainsEmpty() {
102 InflatingBitSet ibs = new InflatingBitSet(new EWAHCompressedBitmap());
103 assertFalse(ibs.maybeContains(0));
104 assertFalse(ibs.contains(0));
105 }
106 }