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
|
/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.api.utils;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.fail;
public class PagingTest {
@Test
public void test_pagination() {
Paging paging = Paging.create(5, 1, 20);
assertThat(paging.pageSize()).isEqualTo(5);
assertThat(paging.pageIndex()).isEqualTo(1);
assertThat(paging.total()).isEqualTo(20);
assertThat(paging.offset()).isEqualTo(0);
assertThat(paging.pages()).isEqualTo(4);
}
@Test
public void test_offset() {
assertThat(Paging.create(5, 1, 20).offset()).isEqualTo(0);
assertThat(Paging.create(5, 2, 20).offset()).isEqualTo(5);
}
@Test
public void test_number_of_pages() {
assertThat(Paging.create(5, 2, 20).pages()).isEqualTo(4);
assertThat(Paging.create(5, 2, 21).pages()).isEqualTo(5);
assertThat(Paging.create(5, 2, 25).pages()).isEqualTo(5);
assertThat(Paging.create(5, 2, 26).pages()).isEqualTo(6);
}
@Test
public void page_size_should_be_strictly_positive() {
try {
Paging.create(0, 5, 5);
fail();
} catch (IllegalArgumentException e) {
assertThat(e).hasMessage("Page size must be strictly positive. Got 0");
}
}
@Test
public void page_index_should_be_strictly_positive() {
try {
Paging.create(5, 0, 5);
fail();
} catch (IllegalArgumentException e) {
assertThat(e).hasMessage("Page index must be strictly positive. Got 0");
}
}
@Test
public void total_items_should_be_positive() {
try {
Paging.create(5, 5, -1);
fail();
} catch (IllegalArgumentException e) {
assertThat(e).hasMessage("Total items must be positive. Got -1");
}
}
}
|
