SyncMadeEasy/force-app/main/default/classes/BatchForSendErrorMail_ScheduleClassTest.cls

@istest
class BatchForSendErrorMail_ScheduleClassTest{
    public static testMethod void testschedule() {
        Test.StartTest();
        BatchForSendErrorMail_ScheduleClass testsche = new BatchForSendErrorMail_ScheduleClass();
        String sch = '0 0 23 * * ?';
        system.schedule('Test status Check', sch, testsche );
        List<AsyncApexJob> jobsApexBatch = [select Id, ApexClassID, ApexClass.Name, Status, JobType from AsyncApexJob where JobType = 'BatchApex'];
        System.assert(true,true);
        Test.stopTest();
    }
}