HI i AM new to apex how to write test class for below class.

public with sharing class RecordsBatch implements Database.Batchable<sObject>,Schedulable{
    public Database.QueryLocator start(Database.BatchableContext pBatchContext) {
        system.debug('\n\n Label.RecordsBatchQueryOnFeeSplit :: '+Label.RecordsBatchQueryOnFeeSplit);
        return Database.getQueryLocator(Label.RecordsBatchQueryOnFeeSplit);
    }
    public void execute(Database.BatchableContext pBatchContext, List<bank__C> listFeeSplit) { 
        system.debug('...listFeeSplit...'+listFeeSplit);        
        List<bank__C> UpdateFeeSplit =  new List<bank__C>();                
        for(bank__C oppFS: listFeeSplit){
            bank__C UpdateObjFS = new bank__C();           
                system.debug('WIP*****');          
            if(oppFS.Recipient__r.Service_Line__c != oppFS.Recipient_Service_Line__c
               || oppFS.Recipient__r.Business_Unit__c != oppFS.Recipient_Business_Unit__c
               || oppFS.Recipient__r.Revenue_Generating_Team__c != oppFS.Recipient_Revenue_generating_team__c;
               || oppFS.Recipient__r.RGT_ID__c != oppFS.Recipient_RGT_ID__c){
                    
                    UpdateObjFS.id = oppFS.ID;
                    UpdateObjFS.Recipient_Service_Line__c = oppFS.Recipient__r.Service_Line__c;
                    UpdateObjFS.Recipient_Business_Unit__c = oppFS.Recipient__r.Business_Unit__c;
                    UpdateObjFS.Recipient_Revenue_generating_team__c = oppFS.Recipient__r.Revenue_Generating_Team__c;
                    UpdateObjFS.Recipient_RGT_ID__c = oppFS.Recipient__r.RGT_ID__c;
                    
                    system.debug('WIP UpdateObjFS*****'+UpdateObjFS);
                    UpdateFeeSplit.add(UpdateObjFS);              
               }                        
        }
         if(!UpdateFeeSplit.isEmpty()){
            Database.update(UpdateFeeSplit,false);
        }  
    }
     public void execute(SchedulableContext ctx) {
        RecordsBatch oWB = new RecordsBatch();
        database.executebatch(oWB,Integer.valueof(Label.RecordsBatchLimit));
    }
    public void finish(Database.BatchableContext bc){
    }
}