Asynchronous Apex 03

🎯 Challenge

@isTest
public class LeadProcessorTest {
    
    @isTest
    public static void testit() {
        List<Lead> leads = new List<Lead>();
        
        // insert 200 Lead records
        for (Integer i=0;i<200;i++) {
            Lead l = new Lead();
            l.LastName = 'name' + i;
            l.Company = 'Company';
            l.Status = 'Random Status';
          	leads.add(l);
        }
        insert leads;
        
        //이 사이에서 해야한다 
        Test.startTest();
        LeadProcessor lp = new LeadProcessor();
        Id batchId = Database.executeBatch(lp);
        Test.stopTest();
    }  
}

global class LeadProcessor implements Database.Batchable<sObject>{
    //stateful은 필요없으니 삭제
    Integer count = 0;
    
    //start
    global Database.QueryLocator start(Database.BatchableContext bc) {
        //collect all Lead update
        return Database.getQueryLocator('SELECT ID, LeadSource FROM Lead');
    }
    
    global void execute(Database.BatchableContext bc, List<Lead> scope){
        LIST<Lead> leads = new LIST<Lead>();
       
        for (Lead lead : scope) {
            lead.LeadSource = 'Dreamforce';
            leads.add(lead);
            count += 1;
        }
        update leads;
    }
    global void finish(Database.BatchableContext bc){
		System.debug('count = ' + count);        
    }
}