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/*
* SonarQube
* Copyright (C) 2009-2025 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 org.assertj.core.api.Assertions;
import org.junit.jupiter.api.Test;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
class OffsetBasedPaginationTest {
@Test
void forOffset_whenNegativeOffset_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forOffset(-1, 10))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("offset must be >= 0");
}
@Test
void forOffset_whenPageSizeIsZero_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forOffset(1, 0))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("page size must be >= 1");
}
@Test
void forOffset_whenNegativePageSize_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forOffset(1, -1))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("page size must be >= 1");
}
@Test
void forOffset_whenZeroOffset_shouldStartOffsetAtZero() {
assertThat(OffsetBasedPagination.forOffset(0, 100))
.extracting(OffsetBasedPagination::getOffset, OffsetBasedPagination::getPageSize)
.containsExactly(0, 100);
}
@Test
void forStartRowNumber_whenStartRowNumberLowerThanOne_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forStartRowNumber(0, 10))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("startRowNumber must be >= 1");
}
@Test
void forStartRowNumber_whenPageSizeIsZero_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forStartRowNumber(1, 0))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("page size must be >= 1");
}
@Test
void forStartRowNumber_whenNegativePageSize_shouldfailsWithIAE() {
assertThatThrownBy(() -> OffsetBasedPagination.forStartRowNumber(1, -1))
.isInstanceOf(IllegalArgumentException.class)
.hasMessage("page size must be >= 1");
}
@Test
void equals_whenSameParameters_shouldBeTrue() {
Assertions.assertThat(OffsetBasedPagination.forStartRowNumber(15, 20))
.isEqualTo(OffsetBasedPagination.forOffset(14, 20));
}
@Test
void equals_whenSameObjects_shouldBeTrue() {
OffsetBasedPagination offsetBasedPagination = OffsetBasedPagination.forStartRowNumber(15, 20);
Assertions.assertThat(offsetBasedPagination).isEqualTo(offsetBasedPagination);
}
@Test
void hashcode_whenSameObjects_shouldBeEquals() {
OffsetBasedPagination offsetBasedPagination = OffsetBasedPagination.forStartRowNumber(15, 20);
Assertions.assertThat(offsetBasedPagination).hasSameHashCodeAs(offsetBasedPagination);
}
@Test
void equals_whenDifferentClasses_shouldBeFalse() {
Assertions.assertThat(OffsetBasedPagination.forStartRowNumber(15, 20)).isNotEqualTo("not an OffsetBasedPagination object");
}
@Test
void equals_whenDifferentPageSize_shouldBeFalse() {
Assertions.assertThat(OffsetBasedPagination.forStartRowNumber(15, 21))
.isNotEqualTo(OffsetBasedPagination.forOffset(14, 20));
}
@Test
void equals_whenDifferentOffset_shouldBeFalse() {
Assertions.assertThat(OffsetBasedPagination.forOffset(30, 20))
.isNotEqualTo(OffsetBasedPagination.forOffset(15, 20));
}
@Test
void hashcode_whenSameParameters_shouldBeEquals() {
Assertions.assertThat(OffsetBasedPagination.forStartRowNumber(1, 20))
.hasSameHashCodeAs(OffsetBasedPagination.forOffset(0, 20));
}
@Test
void hashcode_whenDifferentOffset_shouldBeNotEquals() {
Assertions.assertThat(OffsetBasedPagination.forOffset(10, 20))
.doesNotHaveSameHashCodeAs(OffsetBasedPagination.forOffset(15, 20));
}
@Test
void hashcode_whenDifferentPageSize_shouldBeNotEquals() {
Assertions.assertThat(OffsetBasedPagination.forOffset(0, 20))
.doesNotHaveSameHashCodeAs(OffsetBasedPagination.forOffset(0, 40));
}
}
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