Hi,this program shows test class for Batch apex
Apex Class
global class BatchApexTestExample implements Database.Batchable<Sobject>{
global Database.QueryLocator start(Database.BatchableContext bc){
return Database.getQueryLocator('select leadsource,rating from lead');
}
global void execute(Database.BatchableContext bc,List<Lead> scope){
for(Lead l : scope){
if(l.leadsource=='web'){
l.rating='warm';
}
}
update scope;
}
public void finish(Database.BatchableContext bc){
}
}Test Class
@isTest
private class BatchApexTestExampleTest {
static testMethod void testme(){
Lead l = new Lead();
l.FirstName='Salesforce';
l.LastName='Codes';
l.Company='salesforcecodes';
l.leadsource='Web';
insert l;
Test.startTest();
BatchApexTestExample ba= new BatchApexTestExample();
Id jobid= Database.executeBatch(ba,5);
Test.stopTest();
Lead leads = [select rating from lead where id=:l.Id];
system.assertEquals('Warm', leads.Rating);
}
}
