/**
* Copyright (c) 2010 arago AG, http://www.arago.de/
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package de.arago.portlet.test;
import de.arago.portlet.util.Paginator;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import junit.framework.TestCase;
public class PaginatorTest extends TestCase {
public PaginatorTest(String testName) {
super(testName);
}
public void testNormal() {
List<Object> page1 = Arrays.asList(new Object[] {1, 2, 3});
List<Object> page2 = Arrays.asList(new Object[] {4, 5, 6});
List<Object> page3 = Arrays.asList(new Object[] {7, 8, 9});
List<Object> page4 = Arrays.asList(new Object[] {10, 11, 12});
List<Object> page5 = Arrays.asList(new Object[] {13});
List<Object> items = Arrays.asList(new Object[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13});
Paginator pager = new Paginator(items.size(), 3);
assertEquals(1, pager.firstPage());
assertEquals(5, pager.lastPage());
pager.go(1);
assertEquals(1, pager.getCurrentPage());
assertEquals(page1, pager.slice(items));
pager.go(2);
assertEquals(2, pager.getCurrentPage());
assertEquals(page2, pager.slice(items));
pager.go(3);
assertEquals(3, pager.getCurrentPage());
assertEquals(page3, pager.slice(items));
pager.go(4);
assertEquals(4, pager.getCurrentPage());
assertEquals(page4, pager.slice(items));
pager.go(5);
assertEquals(5, pager.getCurrentPage());
assertEquals(page5, pager.slice(items));
// pager may not overrun boundaries
pager.go(6);
assertEquals(5, pager.getCurrentPage());
assertEquals(page5, pager.slice(items));
}
public void testSmallerThanItemsPerPage() {
List<Object> items = Arrays.asList(new Object[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13});
Paginator pager = new Paginator(items.size(), 20);
assertEquals(1, pager.firstPage());
assertEquals(1, pager.lastPage());
assertEquals(items, pager.slice(items));
}
public void testEven() {
List<Object> items = Arrays.asList(new Object[] {1, 2, 3, 4});
Paginator pager = new Paginator(items.size(), 2);
assertEquals(1, pager.firstPage());
assertEquals(2, pager.lastPage());
}
public void testUnEven() {
List<Object> items = Arrays.asList(new Object[] {1, 2, 3});
Paginator pager = new Paginator(items.size(), 2);
assertEquals(1, pager.firstPage());
assertEquals(2, pager.lastPage());
}
public void testSmallerThanItemsPerPageBug() {
List<Object> items = Arrays.asList(new Object[] {1, 2, 3, 4});
Paginator pager = new Paginator(items.size(), 20);
pager.go(2);
assertEquals(1, pager.firstPage());
assertEquals(1, pager.lastPage());
assertEquals(items, pager.slice(items));
}
public void testNullList() {
Paginator pager = new Paginator(4, 4);
pager.go(2);
assertEquals(1, pager.firstPage());
assertEquals(1, pager.lastPage());
assertEquals(Collections.EMPTY_LIST, pager.slice(null));
}
public void testSmaller() {
List<Object> items = Arrays.asList(new Object[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14});
Paginator pager = new Paginator(items.size(), 5);
assertEquals(1, pager.firstPage());
assertEquals(3, pager.lastPage());
}
public void testBug() {
// 20 and 34
List<Object> items = new ArrayList<Object>();
for (int i = 0; i < 34; ++i ) items.add(i);
Paginator pager = new Paginator(items.size(), 20);
assertEquals(1, pager.firstPage());
assertEquals(2, pager.lastPage());
}
}