public class myclass{
 
    
    public Opportunity o;
    String theId = ApexPages.currentPage().getParameters().get('id');
  
    
   @TestVisible public List<WrapperSObject> records {get; set;}
    public Contract con {get; set;}
    public String selectedValue {get; set;}
  
  public  myclass(ApexPages.StandardController stdController) {
        this.o = (Opportunity)stdController.getRecord();
    }
     
    public PageReference autoRun() {
 
        String theId = ApexPages.currentPage().getParameters().get('id');
         if (theId == null) {
            return null;
        }
    
records = new List<WrapperSObject>();
 for (Contract c : [select id, Name, AccountId, StartDate, Status, ContractNumber from Contract where Status='Activated'  ])
 {
 records.add(new WrapperSObject(c, getOptions(), 'Activated'));
 }
     return null;
          
}
 public PageReference MainMethod() {
 
  try{
     //Create new Oppertunity
             Opportunity opp = new Opportunity(
                     Name = 'TESTACCOUNT_test july' +'Date.today()'
                     ,CloseDate=Date.today()
                     ,StageName= 'Renewal'
                     ,Type='EnerLead Renewal'
                     ,Description='Newly created Oppertunity' 
                );
            insert opp;
   
//try section     
}catch(QueryException e){
}catch(DMLException e){}
    
        return null;        
  }


// To Update contracts 
 public PageReference back() {
       List<Contract> contractToBeUpdate = new List<Contract>();
    for(WrapperSObject wrapper : records){
        wrapper.con.status = wrapper.selectedValue;
        contractToBeUpdate.add(wrapper.con);
    }
    update contractToBeUpdate;
    PageReference pageRef ;    
     return pageRef= MainMethod();
  }
 


@TestVisible public class WrapperSObject {
public Contract con {get; set;}
 public List < SelectOption > options {get; set;}
        public String selectedValue {get; set;}
  
     
    public WrapperSObject( Contract c,List < SelectOption > options, String selectedValue) {
    con=c;
     this.options = options;
     this.selectedValue = selectedValue;
     }
  
  }

public List < SelectOption > getOptions() {
List<SelectOption> options = new List<SelectOption>();
        options.add(new SelectOption('Activated','Activated'));
        options.add(new SelectOption('Expired','Expired'));
        options.add(new SelectOption('LAPSE','Lapse'));
        return options;
    }
  }

@isTest
private class myclassTest {
    private static testMethod void testAutoRun() {

    
        Account acc = new Account(Name='Abce');
  insert acc;
 
  Opportunity  testOppty = new Opportunity();
  testOppty.name='testOppty';
  testOppty.AccountId=acc.id;
  testOppty.CloseDate=System.today();
  testOppty.StageName= 'Closed Won';
  testOppty.Type='EnerLead Renewal';
  testOppty.Description='Newly created Oppertunity';
  insert testOppty;
  
        insert odr;
                  Contract c = new Contract(
                ,StartDate=testOppty.CloseDate
                ,AccountId = testOppty.AccountId
                ,Name = testOppty.Name
                );
            insert c;
  
  
        
        test.startTest();
        
            PageReference pageRef = Page.myclass;
            Test.setCurrentPage(pageRef);
            
            pageRef.getParameters().put('id',testOppty.id);
            ApexPages.StandardController sc = new ApexPages.standardController(testOppty);
            
            myclass  controller = new myclass(sc);
            controller.autoRun();
            controller.back();
            controller.MainMethod();
        test.stopTest();
}
}