1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/*
* DSI utilities
*
* Copyright (C) 2010-2023 Sebastiano Vigna
*
* This program and the accompanying materials are made available under the
* terms of the GNU Lesser General Public License v2.1 or later,
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html,
* or the Apache Software License 2.0, which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
*
* SPDX-License-Identifier: LGPL-2.1-or-later OR Apache-2.0
*/
package it.unimi.dsi.util;
import static it.unimi.dsi.util.LongIntervals.EMPTY_INTERVAL;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import it.unimi.dsi.fastutil.longs.LongIterators;
import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
import it.unimi.dsi.fastutil.longs.LongRBTreeSet;
import it.unimi.dsi.fastutil.longs.LongSortedSet;
import it.unimi.dsi.fastutil.longs.LongSortedSets;
public class LongIntervalTest {
@Test
public void testLength() {
assertEquals(0, EMPTY_INTERVAL.length());
assertEquals(1, LongInterval.valueOf(0).length());
assertEquals(2, LongInterval.valueOf(0, 1).length());
}
@Test
public void testContainsElement() {
assertTrue(LongInterval.valueOf(0).contains(0));
assertFalse(LongInterval.valueOf(0).contains(1));
assertFalse(LongInterval.valueOf(0).contains(-1));
assertTrue(LongInterval.valueOf(0, 1).contains(0));
assertTrue(LongInterval.valueOf(0, 1).contains(1));
assertFalse(LongInterval.valueOf(0).contains(2));
assertFalse(LongInterval.valueOf(0).contains(-1));
assertFalse(EMPTY_INTERVAL.contains(0));
assertFalse(EMPTY_INTERVAL.contains(1));
assertFalse(EMPTY_INTERVAL.contains(-1));
}
@Test
public void testContainsInterval() {
assertTrue(LongInterval.valueOf(0).contains(LongInterval.valueOf(0)));
assertTrue(LongInterval.valueOf(0).contains(EMPTY_INTERVAL));
assertFalse(LongInterval.valueOf(0).contains(LongInterval.valueOf(0, 1)));
assertFalse(LongInterval.valueOf(0).contains(LongInterval.valueOf(-1, 0)));
assertTrue(LongInterval.valueOf(0, 1).contains(LongInterval.valueOf(0)));
assertTrue(LongInterval.valueOf(0, 1).contains(LongInterval.valueOf(1)));
assertTrue(LongInterval.valueOf(0, 1).contains(LongInterval.valueOf(0, 1)));
assertTrue(LongInterval.valueOf(0, 1).contains(EMPTY_INTERVAL));
assertFalse(LongInterval.valueOf(0).contains(LongInterval.valueOf(-1, 0)));
assertFalse(LongInterval.valueOf(0).contains(LongInterval.valueOf(1, 2)));
assertFalse(LongInterval.valueOf(0).contains(LongInterval.valueOf(-1, 2)));
assertTrue(EMPTY_INTERVAL.contains(EMPTY_INTERVAL));
assertFalse(EMPTY_INTERVAL.contains(LongInterval.valueOf(0)));
assertFalse(EMPTY_INTERVAL.contains(LongInterval.valueOf(1)));
assertFalse(EMPTY_INTERVAL.contains(LongInterval.valueOf(0, 1)));
}
@Test
public void testContainsRadius() {
boolean ok = false;
try {
EMPTY_INTERVAL.contains(0, 1);
}
catch(final IllegalArgumentException e) {
ok = true;
}
assertTrue(ok);
assertTrue(LongInterval.valueOf(0).contains(1, 1));
assertFalse(LongInterval.valueOf(0).contains(2, 1));
ok = false;
try {
EMPTY_INTERVAL.contains(0, 1, 2);
}
catch(final IllegalArgumentException e) {
ok = true;
}
assertTrue(ok);
assertTrue(LongInterval.valueOf(0).contains(1, 1, 2));
assertTrue(LongInterval.valueOf(0).contains(2, 1, 2));
assertFalse(LongInterval.valueOf(0).contains(3, 1, 2));
}
@Test
public void testCompareInt() {
boolean ok = false;
try {
EMPTY_INTERVAL.compareTo(0);
}
catch(final IllegalArgumentException e) {
ok = true;
}
assertTrue(ok);
assertEquals(-1, LongInterval.valueOf(0).compareTo(-1));
assertEquals(0, LongInterval.valueOf(0).compareTo(0));
assertEquals(1, LongInterval.valueOf(0).compareTo(1));
assertEquals(-1, LongInterval.valueOf(0, 1).compareTo(-1));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(0));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(1));
assertEquals(1, LongInterval.valueOf(0, 1).compareTo(2));
ok = false;
try {
EMPTY_INTERVAL.compareTo(0, 1);
}
catch(final IllegalArgumentException e) {
ok = true;
}
assertTrue(ok);
assertEquals(-1, LongInterval.valueOf(0).compareTo(-2, 1));
assertEquals(0, LongInterval.valueOf(0).compareTo(-1, 1));
assertEquals(0, LongInterval.valueOf(0).compareTo(0, 1));
assertEquals(0, LongInterval.valueOf(0).compareTo(1, 1));
assertEquals(1, LongInterval.valueOf(0).compareTo(2, 1));
assertEquals(-1, LongInterval.valueOf(0, 1).compareTo(-2, 1));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(-1, 1));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(0, 1));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(1, 1));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(2, 1));
assertEquals(1, LongInterval.valueOf(0, 1).compareTo(3, 1));
ok = false;
try {
EMPTY_INTERVAL.compareTo(0, 1, 2);
}
catch(final IllegalArgumentException e) {
ok = true;
}
assertTrue(ok);
assertEquals(-1, LongInterval.valueOf(0).compareTo(-2, 1, 2));
assertEquals(0, LongInterval.valueOf(0).compareTo(-1, 1, 2));
assertEquals(0, LongInterval.valueOf(0).compareTo(0, 1, 2));
assertEquals(0, LongInterval.valueOf(0).compareTo(1, 1, 2));
assertEquals(0, LongInterval.valueOf(0).compareTo(2, 1, 2));
assertEquals(1, LongInterval.valueOf(0).compareTo(3, 1, 2));
assertEquals(-1, LongInterval.valueOf(0, 1).compareTo(-2, 1, 2));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(-1, 1, 2));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(0, 1, 2));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(1, 1, 2));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(2, 1, 2));
assertEquals(0, LongInterval.valueOf(0, 1).compareTo(3, 1, 2));
assertEquals(1, LongInterval.valueOf(0, 1).compareTo(4, 1, 2));
}
private LongSortedSet toSortedSet(final LongInterval interval) {
if (interval == EMPTY_INTERVAL) return LongSortedSets.EMPTY_SET;
final LongSortedSet set = new LongRBTreeSet();
for(long i = interval.left; i <= interval.right; i++) set.add(i);
return set;
}
@Test
public void testSubsets() {
for(int i = 0; i < 10; i++)
for(int j = i - 1; j < 10; j++) {
final LongInterval interval = j < i ? EMPTY_INTERVAL : LongInterval.valueOf(i, j);
final LongSortedSet set = toSortedSet(interval);
assertEquals(set, interval);
assertArrayEquals(LongIterators.unwrap(set.iterator()), LongIterators.unwrap(interval.iterator()));
assertEquals(new LongOpenHashSet(set), interval);
for(int k = j - 1; k <= i + 1; k++) {
assertArrayEquals(LongIterators.unwrap(set.iterator(k)), LongIterators.unwrap(interval.iterator(k)));
assertEquals(set.headSet(k), interval.headSet(k));
assertEquals(set.tailSet(k), interval.tailSet(k));
for(int l = k; l <= i + 1; l++)
assertEquals(set.subSet(k, l), interval.subSet(k, l));
}
}
}
}
|
