I have a controller with wrapper class in it..can someone help to to write test class for it??
My controller is:
public class ContactSelectClassController{

  public String beforeblob1{get;set;}
    public String conid{get;set;}
    public String emailEncoded { get; set; }
    public String email { get; set; }
    public String phoneEncoded { get; set; }
    public String con_number { get; set; }
    public String fullname{get;set;}
     public String emailName{get;set;}
    public String fullnameEncoded{get;set;}
    @TestVisible public List<wrapAccount> wrapAccountList {get; set;}
    public List<Contact> selectedAccounts{get;set;}
    public String feedid;
    private  List<Id> contactids=new list<Id>();
    public List<Contact> conts;
      public List<Contact> cont;
  
    public List<Feedback_Contacts__c> feedcon{get;set;} 
    
      public ContactSelectClassController(ApexPages.StandardController controller) 
    {
      
    /*  conid = ApexPages.currentPage().getParameters().get('conid');
         system.debug('+++++++++CONID+++++++++'+conid);
         Contact con =[Select firstname,lastname,email,phone,id from contact where id=:conid];
         system.debug('+++++++++CON+++++++++'+con ); */
 
    }
    
    public ContactSelectClassController()
    {
        
        
 
         
     feedid= (ApexPages.currentPage().getParameters().get('fid'));
      emailName= (ApexPages.currentPage().getParameters().get('emailName'));
     fullnameEncoded = ApexPages.currentPage().getParameters().get('fullname');
       emailEncoded = ApexPages.currentPage().getParameters().get('email');
       phoneEncoded = ApexPages.currentPage().getParameters().get('con_number');
    system.debug('*********************Feedback id is :*********************************'+fullname+' '+email+' '+con_number+' '+feedid+' '+emailName);
     system.debug('*********************contactidscontactidscontactids:*********************************'+selectedAccounts);
           
        if(wrapAccountList == null)
         {
            wrapAccountList = new List<wrapAccount>();
            for(Contact a: [select Id, Name,Email,Phone from Contact])
             {
                wrapAccountList.add(new wrapAccount(a));
             }
         }
         
         
  
     }
   public pageReference CancelAction()
  {
    PageReference pr1 = new PageReference('/apex/FeedbackMainlist');
   
    pr1.setRedirect(true);
    return pr1;
  } 

    public void processSelected()
     {
     
     feedid= (ApexPages.currentPage().getParameters().get('id'));
     system.debug('+++++++FEEDID++++++++'+feedid);
        
          fullnameEncoded = ApexPages.currentPage().getParameters().get('fullname');
           system.debug('++++++++NAMEENCODED++++++'+fullnameEncoded );
              if(fullnameEncoded !=null || fullnameEncoded =='')
  {
  Blob bodyBlob1 =EncodingUtil.base64Decode(fullnameEncoded );
   fullname = bodyBlob1.toString();
   system.debug('++++++++fullname ++++++'+fullname);
  }
  else{
   fullname = ApexPages.currentPage().getParameters().get('fullname');
  }
  
    emailEncoded = ApexPages.currentPage().getParameters().get('email');
  
  if(emailEncoded !=null || emailEncoded =='')
  {
  Blob bodyBlob1 =EncodingUtil.base64Decode(emailEncoded );
  email = bodyBlob1.toString();
  }
  else{
   email = ApexPages.currentPage().getParameters().get('email');
  }
  
  phoneEncoded = ApexPages.currentPage().getParameters().get('con_number');
  if(phoneEncoded !=null )  
  { 
  Blob bodyBlob2 =EncodingUtil.base64Decode(phoneEncoded );
  con_number =bodyBlob2.toString();
  }
  else{
  con_number=ApexPages.currentPage().getParameters().get('con_number');
  } 
        
    selectedAccounts = new List<Contact>();
 
        for(wrapAccount wrapAccountObj : wrapAccountList)
         {
            if(wrapAccountObj.selected == true)
             {
                selectedAccounts.add(wrapAccountObj.acc);
                 
             }
         }
          
          for(Contact cont: selectedAccounts)
        {
           contactids.add(cont.Id);
        } 
        
        
       feedcon=new List<Feedback_Contacts__c>();
     
        for(Contact cont: selectedAccounts)
       {
       
        cont  =  [Select firstname,lastname,email,id,name,MobilePhone from Contact where id in :selectedAccounts  ];
     system.debug('+++++++++CONT++++++++++'+cont  );
        string fullname = cont.firstname + ' ' + cont.lastname; 
          if(fullname !=null && email!=null && con_number!=null )
       {
        Blob beforeblob = Blob.valueOf(fullname);
        EncodingUtil.urlEncode(fullname,'UTF-8');
     
        string email = cont.email;
        Blob beforeblob1 = Blob.valueOf(email); 
        EncodingUtil.urlEncode(email,'UTF-8');
   
           string con_number = cont.MobilePhone;
           Blob beforeblob2 = Blob.valueOf(con_number);
           EncodingUtil.urlEncode(con_number,'UTF-8'); 
        
        Feedback_Contacts__c fc=new Feedback_Contacts__c();
        fc.FeedbackContactName__c=cont.Id;
        fc.FeedBackNo__c=feedid;
        fc.test__c = EncodingUtil.base64Encode(beforeblob ) ;
        fc.Email__c = EncodingUtil.base64Encode(beforeblob1 ) ;
       fc.ConNumber__c= EncodingUtil.base64Encode(beforeblob2 ) ;
        
        feedcon.add(fc);
        
        }
         insert feedcon; 
         } 
        Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage();
        mail.setTargetObjectIds(contactids);
        mail.setTemplateId('00X360000015j6P');
       Messaging.sendEmail(new Messaging.MassEmailMessage[] {mail});
     }
 
    public class wrapAccount {
        public Contact acc {get; set;}
        public Boolean selected {get; set;}
 
        public wrapAccount(Contact a) {
            acc = a;
            selected = false;
        }
    }
}