pagedlistholdertests.java

Java/J2EE application framework based on [Expert One-on-One J2EE Design and Development] by Rod John

/*
 * Copyright 2002-2004 the original author or authors.
 * 
 * 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.springframework.beans.support;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import junit.framework.TestCase;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;
import org.springframework.beans.TestBean;

/**
 * @author Juergen Hoeller
 * @author Jean-Pierre PAWLAK
 * @since 20.05.2003
 */
public class PagedListHolderTests extends TestCase {

	public void testPagedListHolder() {
		TestBean tb1 = new TestBean();
		tb1.setName("eva");
		tb1.setAge(25);
		TestBean tb2 = new TestBean();
		tb2.setName("juergen");
		tb2.setAge(99);
		TestBean tb3 = new TestBean();
		tb3.setName("Rod");
		tb3.setAge(32);
		List tbs = new ArrayList();
		tbs.add(tb1);
		tbs.add(tb2);
		tbs.add(tb3);

		PagedListHolder holder = new PagedListHolder(tbs);
		assertTrue("Correct source", holder.getSource() == tbs);
		assertTrue("Correct number of elements", holder.getNrOfElements() == 3);
		assertTrue("Correct number of pages", holder.getNrOfPages() == 1);
		assertTrue("Correct page size", holder.getPageSize() == PagedListHolder.DEFAULT_PAGE_SIZE);
		assertTrue("Correct page number", holder.getPage() == 0);
		assertTrue("First page", holder.isFirstPage());
		assertTrue("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 0);
		assertTrue("Correct first element", holder.getLastElementOnPage() == 2);
		assertTrue("Correct page list size", holder.getPageList().size() == 3);
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb1);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb2);
		assertTrue("Correct page list contents", holder.getPageList().get(2) == tb3);

		holder.setPageSize(2);
		assertTrue("Correct number of pages", holder.getNrOfPages() == 2);
		assertTrue("Correct page size", holder.getPageSize() == 2);
		assertTrue("Correct page number", holder.getPage() == 0);
		assertTrue("First page", holder.isFirstPage());
		assertFalse("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 0);
		assertTrue("Correct last element", holder.getLastElementOnPage() == 1);
		assertTrue("Correct page list size", holder.getPageList().size() == 2);
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb1);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb2);

		holder.setPage(1);
		assertTrue("Correct page number", holder.getPage() == 1);
		assertFalse("First page", holder.isFirstPage());
		assertTrue("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 2);
		assertTrue("Correct last element", holder.getLastElementOnPage() == 2);
		assertTrue("Correct page list size", holder.getPageList().size() == 1);
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb3);

		holder.setPageSize(3);
		assertTrue("Correct number of pages", holder.getNrOfPages() == 1);
		assertTrue("Correct page size", holder.getPageSize() == 3);
		assertTrue("Correct page number", holder.getPage() == 0);
		assertTrue("First page", holder.isFirstPage());
		assertTrue("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 0);
		assertTrue("Correct last element", holder.getLastElementOnPage() == 2);

		holder.setPage(1);
		holder.setPageSize(2);
		assertTrue("Correct number of pages", holder.getNrOfPages() == 2);
		assertTrue("Correct page size", holder.getPageSize() == 2);
		assertTrue("Correct page number", holder.getPage() == 1);
		assertFalse("First page", holder.isFirstPage());
		assertTrue("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 2);
		assertTrue("Correct last element", holder.getLastElementOnPage() == 2);

		holder.setPageSize(2);
		holder.setPage(1);
		((MutableSortDefinition) holder.getSort()).setProperty("name");
		((MutableSortDefinition) holder.getSort()).setIgnoreCase(false);
		holder.resort();
		assertTrue("Correct source", holder.getSource() == tbs);
		assertTrue("Correct number of elements", holder.getNrOfElements() == 3);
		assertTrue("Correct number of pages", holder.getNrOfPages() == 2);
		assertTrue("Correct page size", holder.getPageSize() == 2);
		assertTrue("Correct page number", holder.getPage() == 0);
		assertTrue("First page", holder.isFirstPage());
		assertFalse("Last page", holder.isLastPage());
		assertTrue("Correct first element", holder.getFirstElementOnPage() == 0);
		assertTrue("Correct last element", holder.getLastElementOnPage() == 1);
		assertTrue("Correct page list size", holder.getPageList().size() == 2);
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb3);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb1);

		((MutableSortDefinition) holder.getSort()).setProperty("name");
		holder.resort();
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb2);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb1);

		((MutableSortDefinition) holder.getSort()).setProperty("name");
		holder.resort();
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb3);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb1);

		holder.setPage(1);
		assertTrue("Correct page list size", holder.getPageList().size() == 1);
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb2);

		((MutableSortDefinition) holder.getSort()).setProperty("age");
		holder.resort();
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb1);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb3);

		((MutableSortDefinition) holder.getSort()).setIgnoreCase(true);
		holder.resort();
		assertTrue("Correct page list contents", holder.getPageList().get(0) == tb1);
		assertTrue("Correct page list contents", holder.getPageList().get(1) == tb3);

		holder.nextPage();
		assertEquals(1, holder.getPage());
		holder.previousPage();
		assertEquals(0, holder.getPage());
		holder.nextPage();
		assertEquals(1, holder.getPage());
		holder.nextPage();
		assertEquals(1, holder.getPage());
		holder.previousPage();
		assertEquals(0, holder.getPage());
		holder.previousPage();
		assertEquals(0, holder.getPage());
	}

	public void testRefreshablePagedListHolder() {
		String s;
		int n;
		MockSourceProvider provider = new MockSourceProvider();
		RefreshablePagedListHolder holder = new RefreshablePagedListHolder(provider);
		holder.setFilter(new MockFilter());
		BeanWrapper bw = new BeanWrapperImpl(holder);

		holder.refresh(false);
		n = holder.getNrOfElements();
		assertTrue("A:number of elements: " + n, n == 12);
		n = holder.getNrOfPages();
		assertTrue("A:number of pages" + n, n == 2);
		n = holder.getPageSize();
		assertTrue("A:page size: " + n, n == 10);
		n = holder.getPage();
		assertTrue("A:page number: " + n, n == 0);
		n = holder.getFirstElementOnPage();
		assertTrue("A:first element: " + n, n == 0);
		n = holder.getLastElementOnPage();
		assertTrue("A:last element: " + n, n == 9);
		n = holder.getPageList().size();
		assertTrue("A:page list size: " + n, n == 10);
		assertTrue("A:correct filter", holder.getFilter() instanceof MockFilter);
		n = holder.getMaxLinkedPages();
		assertTrue("A:maxLinkedPages: " + n, n == RefreshablePagedListHolder.DEFAULT_MAX_LINKED_PAGES);
		n = holder.getFirstLinkedPage();
		assertTrue("A:first display page: " + n, n == 0);
		n = holder.getLastLinkedPage();
		assertTrue("A:last display page: " + n, n == 1);
		assertTrue("A:sort must be not null", holder.getSort().getProperty() != null);
		n = holder.getSort().getProperty().length();
		assertTrue("A:sort: " + n, n == 0);
		s = ((TestBean)holder.getPageList().get(0)).getName();
		assertTrue("A:page list contents0: " + s, s.equals("Calogero"));
		s = ((TestBean)holder.getPageList().get(4)).getName();
		assertTrue("A:page list contents4: " + s, s.equals("Jesus"));
		n = ((MockSourceProvider) holder.getSourceProvider()).getNrOfCalls();
		assertTrue("Correct number of times called: " + n, n == 1);

		// Go to the second page
		Map cmd = new HashMap();
		cmd.put("page", "1");
		bw.setPropertyValues(cmd);
		holder.refresh(false);
		n = holder.getPage();
		assertTrue("B:page number with array map: " + n, n == 1);
		n = holder.getPageList().size();
		assertTrue("B:page list size: " + n, n == 2);
		n = holder.getFirstElementOnPage();
		assertTrue("B:first element: " + n, n == 10);
		n = holder.getLastElementOnPage();
		assertTrue("B:last element: " + n, n == 11);
		s = ((TestBean)holder.getPageList().get(0)).getName();
		assertTrue("B:page list contents0: " + s, s.equals("Toma"));
		s = ((TestBean)holder.getPageList().get(1)).getName();
		assertTrue("B:page list contents1: " + s, s.equals("Sergio"));

		// Return to the first page and sort by name setting the page size to 5
		cmd.clear();
		cmd.put("sort.property", "name");
		cmd.put("pageSize", "2");
		bw.setPropertyValues(cmd);
		holder.refresh(false);
		n = holder.getNrOfPages();
		assertTrue("C:number of pages: " + n, n == 6);
		n = holder.getPageSize();
		assertTrue("C:page size: " + n, n == 2);
		n = holder.getPage();
		assertTrue("C:page number: " + n, n == 0);
		n = holder.getFirstLinkedPage();
		assertTrue("C:first display page: " + n, n == 0);
		n = holder.getLastLinkedPage();
		assertTrue("C:last display page: " + n, n == 5);
		n = holder.getFirstElementOnPage();
		assertTrue("C:first element: " + n, n == 0);
		n = holder.getLastElementOnPage();
		assertTrue("C:last element: " + n, n == 1);
		n = holder.getPageList().size();
		assertTrue("C:page list size: " + n, n == 2);
		s = ((TestBean)holder.getPageList().get(0)).getName();
		assertTrue("C:page list contents0: " + s, s.equals("amid"));
		s = ((TestBean)holder.getPageList().get(1)).getName();
		assertTrue("C:page list contents1: " + s, s.equals("Aziz"));
		assertTrue("C:sort must be not null", holder.getSort().getProperty() != null);
		s = holder.getSort().getProperty();
		assertTrue("C:sort: " + s, s.equals("name"));
		n = ((MockSourceProvider) holder.getSourceProvider()).getNrOfCalls();
		assertTrue("Correct number of times called: " + n, n == 1);

		// Ignore case in sort, maxLinkedPages set to 3
		cmd.clear();
		cmd.put("sort.ignoreCase", "false");
		cmd.put("maxLinkedPages", "3");
		bw.setPropertyValues(cmd);
		holder.refresh(false);
		s = ((TestBean)holder.getPageList().get(0)).getName();
		assertTrue("D:page list contents0: " + s, s.equals("Aziz"));
		s = ((TestBean)holder.getPageList().get(1)).getName();
		assertTrue("D:page list contents1: " + s, s.equals("Calogero"));
		n = holder.getFirstLinkedPage();
		assertTrue("D:first display page: " + n, n == 0);
		n = holder.getLastLinkedPage();
		assertTrue("D:last display page: " + n, n == 2);