hi am posting my code here.. pls provide me the test class,, thanks a lot.. its urgent.. plssss

public with sharing class RelatedListController
{
private Account accnt;
public integer max{get; set;}
public boolean visible{get;set;}
public String alphabet{get; set;}
public string soql{get;set;}
public ApexPages.StandardSetController paginationController {get;set;}
private boolean IsFiltered;
public void passAlphabet()
{
alphabet= ApexPages.CurrentPage().getParameters().get('alphabet');
IsFiltered = true;
}
public RelatedListController(ApexPages.StandardController controller)
{
this.accnt = (Account)controller.getRecord();
}
public ApexPages.StandardSetController setCon
{
get
{
string query;
if(setcon == null || IsFiltered==true)
{
IsFiltered =False;
if(alphabet == 'A'|| alphabet == 'B' || alphabet == 'C' || alphabet == 'D'|| alphabet == 'E' || alphabet == 'F' || alphabet == 'G' || alphabet == 'H' || alphabet == 'I' || alphabet == 'J' || alphabet == 'K' || alphabet == 'L' || alphabet == 'M' || alphabet == 'N' || alphabet == 'O' || alphabet == 'P' || alphabet == 'Q' || alphabet == 'R' || alphabet == 'S' || alphabet == 'T' || alphabet == 'U' || alphabet == 'V' || alphabet == 'W' || alphabet == 'X' || alphabet == 'Y' || alphabet == 'Z')
{
/* some query */
}
else if(alphabet == 'Other')
{
/* some query */
}
else
{
/* some query */
}
setCon = new ApexPages.StandardSetController(Database.getQueryLocator(query));
max = setCon.getResultSize();
if(max > 20)
{
visible = true;
}
else
{
visible = false;
}
}
return setCon;
}
set;
}
public List<Inventor__c> getInventors()
{
return (List<Inventor__c>) setCon.getRecords();
}
public List<InvWrapper> getInventorsWithIndex()
{
List<Inventor__c> invs = this.getInventors();
List<InvWrapper> InvWrappered = new List<InvWrapper>();
Integer idex = 1;
for (Inventor__c inv : invs)
{
InvWrappered.add(new InvWrapper(inv, idex));
idex++;
}
return InvWrappered;
}
public class InvWrapper
{
public Inventor__c inv { get; set; }
public Integer tabIndex { get; set; }
public ApexPages.StandardSetController paginationController {get;set;}
public InvWrapper(Inventor__c inv, Integer tabIndex)
{
this.inv = inv;
this.tabIndex = tabIndex;
}
}
public Boolean hasNext
{
get
{
return setCon.getHasNext();
}
set;
}
public Boolean hasPrevious
{
get
{
return setCon.getHasPrevious();
}
set;
}
public Integer pageNumber
{
get
{
return setCon.getPageNumber();
}
set;
}
public void first()
{
setCon.first();
}
public void last()
{
setCon.last();
}
public void previous()
{
setCon.previous();
}
public void next()
{
setCon.next();
}
public void cancel()
{
setCon.cancel();
}
}