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- /*
- * SonarQube
- * Copyright (C) 2009-2020 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program 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.
- *
- * 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. 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.db;
-
- import java.util.Random;
- import org.junit.Rule;
- import org.junit.Test;
- import org.junit.rules.ExpectedException;
-
- import static org.assertj.core.api.Assertions.assertThat;
- import static org.sonar.db.Pagination.forPage;
-
-
- public class PaginationTest {
- @Rule
- public ExpectedException expectedException = ExpectedException.none();
-
- @Test
- public void all_is_page_1_with_MAX_INTEGER_page_size() {
- Pagination pagination = Pagination.all();
-
- assertThat(pagination.getPage()).isEqualTo(1);
- assertThat(pagination.getPageSize()).isEqualTo(Integer.MAX_VALUE);
- }
-
- @Test
- public void all_returns_a_constant() {
- assertThat(Pagination.all()).isSameAs(Pagination.all());
- }
-
- @Test
- public void forPage_fails_with_IAE_if_page_is_0() {
- expectedException.expect(IllegalArgumentException.class);
- expectedException.expectMessage("page index must be >= 1");
-
- forPage(0);
- }
-
- @Test
- public void forPage_fails_with_IAE_if_page_is_less_than_0() {
- expectedException.expect(IllegalArgumentException.class);
- expectedException.expectMessage("page index must be >= 1");
-
- forPage(-Math.abs(new Random().nextInt()) - 1);
- }
-
- @Test
- public void andSize_fails_with_IAE_if_size_is_0() {
- Pagination.Builder builder = forPage(1);
-
- expectedException.expect(IllegalArgumentException.class);
- expectedException.expectMessage("page size must be >= 1");
-
- builder.andSize(0);
- }
-
- @Test
- public void andSize_fails_with_IAE_if_size_is_less_than_0() {
- Pagination.Builder builder = forPage(1);
-
- expectedException.expect(IllegalArgumentException.class);
- expectedException.expectMessage("page size must be >= 1");
-
- builder.andSize(-Math.abs(new Random().nextInt()) - 1);
- }
-
- @Test
- public void offset_is_computed_from_page_and_size() {
- assertThat(forPage(2).andSize(3).getOffset()).isEqualTo(3);
- assertThat(forPage(5).andSize(3).getOffset()).isEqualTo(12);
- assertThat(forPage(5).andSize(1).getOffset()).isEqualTo(4);
- }
-
- @Test
- public void startRowNumber_is_computed_from_page_and_size() {
- assertThat(forPage(2).andSize(3).getStartRowNumber()).isEqualTo(4);
- assertThat(forPage(5).andSize(3).getStartRowNumber()).isEqualTo(13);
- assertThat(forPage(5).andSize(1).getStartRowNumber()).isEqualTo(5);
- }
-
- @Test
- public void endRowNumber_is_computed_from_page_and_size() {
- assertThat(forPage(2).andSize(3).getEndRowNumber()).isEqualTo(6);
- assertThat(forPage(5).andSize(3).getEndRowNumber()).isEqualTo(15);
- assertThat(forPage(5).andSize(1).getEndRowNumber()).isEqualTo(5);
- }
- }
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