// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.joy.page;
import org.junit.Test;
import static org.junit.Assert.*;
public class PageDataTest {
@Test
public void testPaging() {
PageData pd = new PageData(PageData.calcPageOfItem(0, 20), 50, 20);
assertEquals(1, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(19, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(50, pd.getTotalItems());
assertEquals(3, pd.getTotalPages());
assertEquals(20, pd.getPageItemsCount());
assertTrue(pd.hasNextPage());
assertFalse(pd.hasPreviousPage());
pd = new PageData(PageData.calcPageOfItem(19, 20), 50, 20);
assertEquals(1, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(19, pd.getLastIndex());
assertEquals(3, pd.getTotalPages());
assertEquals(20, pd.getPageItemsCount());
assertTrue(pd.isFirstPage());
pd = new PageData(PageData.calcPageOfItem(20, 20), 50, 20);
assertEquals(2, pd.getCurrentPage());
assertEquals(20, pd.getFirstIndex());
assertEquals(39, pd.getLastIndex());
assertEquals(20, pd.getPageItemsCount());
pd = new PageData(PageData.calcPageOfItem(40, 20), 50, 20);
assertEquals(3, pd.getCurrentPage());
assertEquals(40, pd.getFirstIndex());
assertEquals(49, pd.getLastIndex());
assertEquals(10, pd.getPageItemsCount());
assertTrue(pd.isLastPage());
}
@Test
public void testOver() {
PageData pd = new PageData(PageData.calcPageOfItem(-1, 20), 50, 20);
assertEquals(1, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(19, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(50, pd.getTotalItems());
assertEquals(3, pd.getTotalPages());
assertTrue(pd.hasNextPage());
assertFalse(pd.hasPreviousPage());
assertEquals(20, pd.getPageItemsCount());
pd = new PageData(PageData.calcPageOfItem(100, 20), 50, 20);
assertEquals(3, pd.getCurrentPage());
assertEquals(40, pd.getFirstIndex());
assertEquals(49, pd.getLastIndex());
assertTrue(pd.isLastPage());
assertEquals(10, pd.getPageItemsCount());
}
@Test
public void testOne() {
PageData pd = new PageData(1, 1, 20);
assertEquals(1, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(0, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(1, pd.getTotalItems());
assertEquals(1, pd.getTotalPages());
assertEquals(1, pd.getPageItemsCount());
}
@Test
public void testMinusOne() {
PageData pd = new PageData(-1, 100, 20);
assertEquals(1, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(19, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(100, pd.getTotalItems());
assertEquals(5, pd.getTotalPages());
assertEquals(20, pd.getPageItemsCount());
}
@Test
public void testZero() {
PageData pd = new PageData(1, 0, 20);
assertTrue(pd.isLastPage());
assertTrue(pd.isFirstPage());
assertEquals(0, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(0, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(0, pd.getTotalItems());
assertEquals(0, pd.getTotalPages());
assertEquals(0, pd.getPageItemsCount());
pd = new PageData(4, 0, 20);
assertTrue(pd.isLastPage());
assertTrue(pd.isFirstPage());
assertEquals(0, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(0, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(0, pd.getTotalItems());
assertEquals(0, pd.getTotalPages());
assertEquals(0, pd.getPageItemsCount());
pd = new PageData(-11, 0, 20);
assertTrue(pd.isLastPage());
assertTrue(pd.isFirstPage());
assertEquals(0, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(0, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(0, pd.getTotalItems());
assertEquals(0, pd.getTotalPages());
assertEquals(0, pd.getPageItemsCount());
pd = new PageData(0, 0, 20);
assertTrue(pd.isLastPage());
assertTrue(pd.isFirstPage());
assertEquals(0, pd.getCurrentPage());
assertEquals(0, pd.getFirstIndex());
assertEquals(0, pd.getLastIndex());
assertEquals(20, pd.getPageSize());
assertEquals(0, pd.getTotalItems());
assertEquals(0, pd.getTotalPages());
assertEquals(0, pd.getPageItemsCount());
}
@Test
public void testCalc() {
assertEquals(0, PageData.calcFirstItemIndexOfPage(1, 5, 3));
assertEquals(0, PageData.calcFirstItemIndexOfPage(1, 5, 10));
assertEquals(5, PageData.calcFirstItemIndexOfPage(2, 5, 10));
assertEquals(0, PageData.calcFirstItemIndexOfPage(2, 5, 5));
assertEquals(0, PageData.calcFirstItemIndexOfPage(2, 5, 4));
assertEquals(5, PageData.calcFirstItemIndexOfPage(2, 5, 6));
assertEquals(0, PageData.calcFirstItemIndexOfPage(2, 5, 0));
assertEquals(0, PageData.calcFirstItemIndexOfPage(0, 5, 10));
assertEquals(0, PageData.calcFirstItemIndexOfPage(-1, 5, 10));
}
@Test
public void testFlow() {
PageRequest pageRequest = new PageRequest();
pageRequest.setPage(1);
pageRequest.setSize(20);
int startIndex = PageData.calcFirstItemIndexOfPage(pageRequest, 100);
assertEquals(0, startIndex);
pageRequest = new PageRequest();
startIndex = PageData.calcFirstItemIndexOfPage(pageRequest, 100);
assertEquals(0, startIndex);
PageData pageData = new PageData(1, 100, 0);
assertEquals(1, pageData.getCurrentPage());
}
}