trunk/core/src/test/java/org/apache/struts2/views/jsp/SubsetIteratorTagTest.java

/*
 * $Id$
 *
 * Copyright 2006 The Apache Software Foundation.
 *
 * 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.apache.struts2.views.jsp;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.struts2.util.SubsetIteratorFilter.Decider;
import org.apache.struts2.views.jsp.iterator.SubsetIteratorTag;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;


/**
 * Test case for SubsetIteratorTag.
 * 
 */
public class SubsetIteratorTagTest extends AbstractTagTest {
	

	public void testBasic() throws Exception {
		{ // List as Source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
		
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
		
			assertEquals(subsetIterator.next(), new Integer(1));
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(3));
			assertEquals(subsetIterator.next(), new Integer(4));
			assertEquals(subsetIterator.next(), new Integer(5));
		}
		
		{ // Array as Source 
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myArray");
		
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(1));
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(3));
			assertEquals(subsetIterator.next(), new Integer(4));
			assertEquals(subsetIterator.next(), new Integer(5));
		}
	}
	
	public void testWithStartAttribute() throws Exception {
		{ // List as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setStart("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(4));
			assertEquals(subsetIterator.next(), new Integer(5));
		}
		
		{ // Array as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myArray");
			tag.setStart("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(4));
			assertEquals(subsetIterator.next(), new Integer(5));
		}
	}
	
	public void testWithCountAttribute() throws Exception {
		{ // List as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setCount("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(1));
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(3));
		}
		
		{ // array as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myArray");
			tag.setCount("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(1));
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(3));
		}
	}
	
	public void testWIthStartAndCountAttribute() throws Exception {
		{ // List as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setStart("3");
			tag.setCount("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer("4"));
			assertEquals(subsetIterator.next(), new Integer("5"));
		}
		
		{	// Array as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myArray");
			tag.setStart("3");
			tag.setCount("3");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer("4"));
			assertEquals(subsetIterator.next(), new Integer("5"));
		}
	}
	
	public void testWithId() throws Exception {
		{	// List as Source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setId("myPageContextId1");
			
			tag.doStartTag();
			Iterator subsetIterator1 = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			Iterator subsetIterator2 = (Iterator) pageContext.getAttribute("myPageContextId1");
			
			assertNotNull(subsetIterator1);
			assertNotNull(subsetIterator2);
			assertEquals(subsetIterator1, subsetIterator2);
			assertEquals(subsetIterator2.next(), new Integer(1));
			assertEquals(subsetIterator2.next(), new Integer(2));
			assertEquals(subsetIterator2.next(), new Integer(3));
			assertEquals(subsetIterator2.next(), new Integer(4));
			assertEquals(subsetIterator2.next(), new Integer(5));
		}
		
		{	// Array as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myArray");
			tag.setId("myPageContextId2");
			
			tag.doStartTag();
			Iterator subsetIterator1 = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			Iterator subsetIterator2 = (Iterator) pageContext.getAttribute("myPageContextId2");
			
			assertNotNull(subsetIterator1);
			assertNotNull(subsetIterator2);
			assertEquals(subsetIterator1, subsetIterator2);
			assertEquals(subsetIterator2.next(), new Integer(1));
			assertEquals(subsetIterator2.next(), new Integer(2));
			assertEquals(subsetIterator2.next(), new Integer(3));
			assertEquals(subsetIterator2.next(), new Integer(4));
			assertEquals(subsetIterator2.next(), new Integer(5));
		}
	}
	
	public void testWithDecider() throws Exception {
		{	// List as source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setDecider("myDecider");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(4));
		}
		
		{	// Array As source
			SubsetIteratorTag tag = new SubsetIteratorTag();
			tag.setPageContext(pageContext);
			tag.setSource("myList");
			tag.setDecider("myDecider");
			
			tag.doStartTag();
			Iterator subsetIterator = (Iterator) stack.findValue("top");
			tag.doEndTag();
			
			assertEquals(subsetIterator.next(), new Integer(2));
			assertEquals(subsetIterator.next(), new Integer(4));
		}
	}
	
	
	
	public Action getAction() {
		return new ActionSupport() {
			public List getMyList() {
				List l = new ArrayList();
				l.add(new Integer(1));
				l.add(new Integer(2));
				l.add(new Integer(3));
				l.add(new Integer(4));
				l.add(new Integer(5));
				return l;
			}
			
			public Integer[] getMyArray() {
				Integer[] integers = new Integer[5];
				integers[0] = new Integer(1);
				integers[1] = new Integer(2);
				integers[2] = new Integer(3);
				integers[3] = new Integer(4);
				integers[4] = new Integer(5);
				return integers;
			}
			
			public Decider getMyDecider() {
				return new Decider() {
					public boolean decide(Object element) throws Exception {
						int integer = ((Integer)element).intValue();
						return (((integer % 2) == 0)?true:false);
					}
				};
			}
		};
	}
}