/**
* JBoss, Home of Professional Open Source
* Copyright Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.aerogear.controller.router.rest.pagination;
import static org.fest.assertions.Assertions.assertThat;
import org.jboss.aerogear.controller.router.rest.pagination.PaginationProperties;
import org.junit.Test;
public class PagingPropertiesTest {
@Test
public void offset() {
final PaginationProperties params = new PaginationProperties(10, 25, 100);
assertThat(params.offset()).isEqualTo(10);
assertThat(params.limit()).isEqualTo(25);
assertThat(params.total().get()).isEqualTo(100);
}
@Test
public void nextOffset() {
final PaginationProperties params = new PaginationProperties(14, 10, 30);
assertThat(params.nextOffset()).isEqualTo(24);
assertThat(params.offset()).isEqualTo(14);
assertThat(params.limit()).isEqualTo(10);
assertThat(params.total().get()).isEqualTo(30);
}
@Test
public void nextOffsetLastPage() {
final PaginationProperties params = new PaginationProperties(90, 10, 100);
assertThat(params.nextOffset()).isEqualTo(100);
assertThat(params.offset()).isEqualTo(90);
assertThat(params.limit()).isEqualTo(10);
assertThat(params.total().get()).isEqualTo(100);
assertThat(params.isLastOffset()).isTrue();
}
@Test
public void previousOffset() {
assertThat(new PaginationProperties(90, 10, 100).previousOffset()).isEqualTo(80);
assertThat(new PaginationProperties(10, 10, 100).previousOffset()).isEqualTo(0);
assertThat(new PaginationProperties(0, 10, 100).previousOffset()).isEqualTo(0);
}
@Test
public void isFirstOffset() {
assertThat(new PaginationProperties(0, 10, 100).isFirstOffset()).isTrue();
assertThat(new PaginationProperties(9, 10, 100).isFirstOffset()).isTrue();
assertThat(new PaginationProperties(10, 10, 100).isFirstOffset()).isFalse();
assertThat(new PaginationProperties(11, 10, 100).isFirstOffset()).isFalse();
}
@Test
public void isLastOffset() {
assertThat(new PaginationProperties(90, 10, 100).isLastOffset()).isTrue();
assertThat(new PaginationProperties(99, 10, 100).isLastOffset()).isTrue();
assertThat(new PaginationProperties(89, 10, 100).isLastOffset()).isFalse();
}
@Test
public void isOffsetGreaterThanTotal() {
assertThat(new PaginationProperties(200, 10, 100).isOffsetGreaterThanTotal()).isTrue();
}
@Test
public void offsetLargerThanTotalPrevious() {
assertThat(new PaginationProperties(200, 10, 100).previousOffset()).isEqualTo(90);
}
@Test(expected = RuntimeException.class)
public void shouldThrowIfOffsetIsNegative() {
new PaginationProperties(-1, 10, 100);
}
@Test(expected = RuntimeException.class)
public void shouldThrowIfLimitIsNegative() {
new PaginationProperties(0, -10, 100);
}
@Test(expected = RuntimeException.class)
public void shouldThrowIfLimitIsZero() {
new PaginationProperties(0, 0, 100);
}
}