Hi,
how to write test class for below coding.Plz help asap

global class Batch_to_SentEmailNotify implements Database.Batchable<sObject> 
 {
   global Database.QueryLocator start(Database.BatchableContext BC) 
    {
       string s='Blocked';
        String query = 'Select Resort_Master__r.Name,Executive_Name__r.Email__c,Name_of_the_Guest__c,Company_Name__c,Block_Release_Date__c,Check_In__c,Check_Out__c,Total_Number_of_Rooms_Booked__c,Booking_Status__c,Source__c,Market_Segment__c,Executive_Name__r.Name FROM Non_Member_Booking_Request__c where Booking_Status__c=: s';
        return Database.getQueryLocator(query);
    }
   
    global void execute(Database.BatchableContext BC, List<Non_Member_Booking_Request__c> scope) 
    {
         for(Non_Member_Booking_Request__c c : scope)
         {
           system.debug('++++++++++++++system.today ++++++++++++++'+system.today());
            string email = c.Executive_Name__r.Email__c;
            if(email !=null && (system.today() == c.Check_In__c))
            {
              Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
              mail.setUseSignature(false);
              mail.setToAddresses(new String[] { email});
              mail.setSubject('Booking Confirmation ');
              mail.setHtmlBody('Dear Team <br/>'+'Namaste !!!!<br/>'+'Please find the attached payment details of below room reservation.<br/>'+'Please check and confirm the CV with updated payment details.<br/>'
              );
              Messaging.sendEmail(new Messaging.SingleEmailMessage[] {mail});
              system.debug('@@@@@@@@@@@@@@@mail@@@@@@@@@@@@@@@'+mail);
            
           }
         }   
    }
    global void finish(Database.BatchableContext BC) 
    {
    }
}
Regards,
Hareesh