jforum example source code file (TopicTypeComparatorTest.java)

This example jforum source code file (TopicTypeComparatorTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jforum tags/keywords

announce, announce, arraylist, gregoriancalendar, list, regular, regular, sticky, sticky, string, testcase, topic, topic, topictypecomparator, util

The jforum TopicTypeComparatorTest.java source code

/*
 * Created on 29/04/2006 10:48:18
 */
package net.jforum.entities;

import java.util.ArrayList;
import java.util.Collections;
import java.util.GregorianCalendar;
import java.util.List;

import junit.framework.Assert;
import junit.framework.TestCase;

/**
 * @author Rafael Steil
 * @version $Id: TopicTypeComparatorTest.java,v 1.2 2006/06/10 22:52:28 rafaelsteil Exp $
 */
public class TopicTypeComparatorTest extends TestCase
{
	public void testPassRandomOrderExpectResultInCorrectOrder()
	{
		List l = new ArrayList();
		
		l.add(this.createTopic(Topic.TYPE_NORMAL, 1, "Regular day 1"));
		l.add(this.createTopic(Topic.TYPE_STICKY, 1, "Sticky day 1"));
		l.add(this.createTopic(Topic.TYPE_STICKY, 2, "Sticky day 2"));
		l.add(this.createTopic(Topic.TYPE_NORMAL, 3, "Regular day 3"));
		l.add(this.createTopic(Topic.TYPE_ANNOUNCE, 5, "Announce day 5"));
		l.add(this.createTopic(Topic.TYPE_ANNOUNCE, 4, "Announce day 4"));
		l.add(this.createTopic(Topic.TYPE_NORMAL, 6, "Regular day 6"));
		l.add(this.createTopic(Topic.TYPE_STICKY, 7, "Sticky day 7"));
		
		Collections.sort(l, new TopicTypeComparator());
		
		Assert.assertEquals("Announce day 5", this.extractTitle(l, 0));
		Assert.assertEquals("Announce day 4", this.extractTitle(l, 1));
		Assert.assertEquals("Sticky day 7", this.extractTitle(l, 2));
		Assert.assertEquals("Sticky day 2", this.extractTitle(l, 3));
		Assert.assertEquals("Sticky day 1", this.extractTitle(l, 4));
		Assert.assertEquals("Regular day 6", this.extractTitle(l, 5));
		Assert.assertEquals("Regular day 3", this.extractTitle(l, 6));
		Assert.assertEquals("Regular day 1", this.extractTitle(l, 7));
	}
	
	public void testCreateTwoTopicsThenAddAReply()
	{
		List l = new ArrayList();
		
		l.add(this.createTopic(Topic.TYPE_NORMAL, 1, "Topic 1"));
		l.add(this.createTopic(Topic.TYPE_NORMAL, 2, "Topic 2"));
		
		Collections.sort(l, new TopicTypeComparator());
		
		Assert.assertEquals("Topic 2", this.extractTitle(l, 0));
		Assert.assertEquals("Topic 1", this.extractTitle(l, 1));
		
		// Simulate a reply
		((Topic)l.get(1)).setLastPostDate(new GregorianCalendar(2006, 4, 3).getTime());
		
		Collections.sort(l, new TopicTypeComparator());
		
		Assert.assertEquals("Topic 1", this.extractTitle(l, 0));
		Assert.assertEquals("Topic 2", this.extractTitle(l, 1));
	}
	
	private String extractTitle(List l, int index)
	{
		return ((Topic)l.get(index)).getTitle();
	}
	
	private Topic createTopic(int type, int day, String title)
	{
		Topic t = new Topic();
		
		t.setTitle(title);
		t.setType(type);
		t.setTime(new GregorianCalendar(2006, 4, day).getTime());
		t.setLastPostDate(t.getTime());
		
		return t;
	}
}