@isTest static void test(){

    Account acc = new Account();
    acc.Name = 'farah test';
    insert acc;

    Opportunity opp = new Opportunity();
    opp.Name = 'tests';
    opp.CloseDate = Date.today();
    opp.StageName ='Demo';
    opp.AccountId = acc.Id;
    opp.Type='New';
    opp.Demo_Date__c = Date.today();
    opp.New_Vehicle_Feed_Provider__c ='AutoFunds';
    insert opp;

    Product2 p1 = new Product2();
    p1.Family = '360 Suite';
    p1.IsActive = true;
    p1.Name ='360 Suite';
    insert p1;

    Id pricebookId = Test.getStandardPricebookId();
    PricebookEntry pb1 = new PricebookEntry();
    pb1.Product2Id =p1.Id;
    pb1.Pricebook2Id = pricebookId;
    pb1.UnitPrice = 100.00;
    pb1.IsActive = true;
    insert pb1;


    OpportunityLineItem oli = new OpportunityLineItem(
                                            OpportunityId = opp.Id,
                                            Quantity = 5,
                                            PricebookEntryId = pb1.Id,
                                            TotalPrice = Quantity * pb1.UnitPrice
                                                                                );
    insert oli;


    opp.StageName = 'Closed Won';
    update opp;



}