@isTest private class SearchLeadControllerTest { static testMethod void testMethod1() { TestDataUtility.CreatePIPolicyConfiguration('Lead'); // Lead ld = TestDataUtility.CreateLead(1)[0]; Lead ld = new Lead(); ld.LastName = 'test'; ld.Email = 'test@olympus.com'; ld.company = 'TestCompany'; ld.AWS_Data_Id__c = 'vjmpmwevkdmqwv'; insert ld; // update ld; List awsList = new List(); awsList.add(ld.AWS_Data_Id__c); String awsListJson = JSON.serialize(awsList); Test.startTest(); SearchLeadController slc = new SearchLeadController(); SearchLeadController.searchLeads(awsListJson); Test.stopTest(); } }