/* * 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"); } } }