public static void logError(Exception ex)
  {
   Contact  errorLog = new Contact ();

       errorLog.MailingAddress='Errorlog@gmail.com';
       errorLog.Name='Record Updation';
 
       Database.insert(errorLog , false);
  }

Can Any one help test method for this

I have twenty account records.

Account has three fields name,type,industry 

if one record name,type and industry is same with other record and that other record should not be inserted ( while Inserting all the twenty records, it should check). It should thrown an error .
How can i write a trigger . Any help 

How to add try catch for error handling for the below code

 

global class updatePolicyStatusSchedule implements Schedulable {
    global void execute(SchedulableContext ctx) {
        updatePolicyStatus();
    }
    
    public void updatePolicyStatus() {
        List<Policy__c> expiredInForcePolicies = [SELECT Id, Status__c, Policy_End_Date__c, Policy_Effective_Date__c
                                                  FROM Policy__c
                                                  WHERE (Policy_End_Date__c <= TODAY AND Status__c != 'Expired' AND Status__c != 'Terminated')
                                                  OR (Policy_Effective_Date__c <= TODAY AND Policy_End_Date__c > TODAY AND Status__c NOT IN ('In Force','In-Force - Non-Renewing'))];

        List<Policy__c> updateExpiredInForcePolicies = new List<Policy__c>();
        

        for(Policy__c policy : expiredInForcePolicies){
            if((policy.Policy_End_Date__c<=System.today() && policy.Status__c!='Expired' && policy.Status__c!='Terminated') && !(policy.Policy_Effective_Date__c <= System.today() && policy.Policy_End_Date__c > System.today() && (policy.Status__c!='In Force' || policy.Status__c!='In-Force - Non-Renewing'))){
                policy.Status__c = 'Expired';
            }

            if(!(policy.Policy_End_Date__c<=System.today() && policy.Status__c!='Expired' && policy.Status__c!='Terminated') && (policy.Policy_Effective_Date__c <= System.today() && policy.Policy_End_Date__c > System.today() && (policy.Status__c!='In Force' || policy.Status__c!='In-Force - Non-Renewing'))){
                policy.Status__c = 'In Force';
            }
            
            updateExpiredInForcePolicies.add(policy);
        }
    if(!updateExpiredInForcePolicies.isEmpty()){
            Database.update(updateExpiredInForcePolicies);  
        }
    }
}


Thanks In advance