Hourly Apex Scheduler

Parameters for hourly execution (run in System Log):

String CRON_EXP = '0 0 * * * ?';
clsScheduledHourly sch = new clsScheduledHourly();
system.schedule('Hourly Sync', CRON_EXP, sch);

Class:

global class clsScheduledHourly implements Schedulable{
  global void execute(SchedulableContext ctx) {
    syncBatch();
  }
  
  public static void syncBatch() {
    List<AsyncApexJob> apexJobsList = new List<AsyncApexJob>(
      [Select TotalJobItems, Status, ApexClass.Name 
       From AsyncApexJob 
       where Status!='Completed' and Status!='Aborted' and ApexClass.Name='syncReportBchbl']
    );
    if(apexJobsList==null || apexJobsList.size()<=0) {
      syncReportBchbl rb = new syncReportBchbl();
      try {
        Database.executeBatch(rb, 5);
      } catch(System.LimitException e) {
        //do something
      }
    }
  }

Test:

  static testMethod void testExecute() {
    String CRON_EXP = '0 0 0 3 9 ? 2022';
    
    Test.startTest();
    // Schedule the test job
    String jobId = System.schedule('testBasicScheduledApex', CRON_EXP, new clsScheduledHourly());
    
    // Get the information from the CronTrigger API object
    CronTrigger ct = [SELECT id, CronExpression, TimesTriggered, NextFireTime FROM CronTrigger WHERE id = :jobId];
    
    // Verify the expressions are the same
    System.assertEquals(CRON_EXP, ct.CronExpression);
    
    // Verify the job has not run
    System.assertEquals(0, ct.TimesTriggered);
    
    // Verify the next time the job will run
    System.assertEquals('2022-09-03 00:00:00', String.valueOf(ct.NextFireTime));
    // Verifiy that it has not run
    Test.stopTest();
  }    
}