Test classes

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Test Class for SOSL/
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@istest
private class SampleController_test {
    private static Account acc1;
   //set up data for each test method
    static {
      acc1 = new Account(Name='MyFatherCompany',Description='Produce stuff');
      insert acc1;
      System.assertEquals(1,[select count() from Account  where Name = 'MyFatherCompany' ]);
   
    }
    static testMethod void test1(){
        Test.startTest();
            //Apply the setFixedSearchResults here
             Id [] fixedSearchResults= new Id[1];
             fixedSearchResults[0] =acc1.Id;
             Test.setFixedSearchResults(fixedSearchResults);
       
              SampleController obj = new SampleController();
           
             obj.Strsearch=acc1.Name;
             obj.search(); //This code is contain SOSL.
     
       
        Test.stopTest();
    }
 }
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Test Class for Batch apex:
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@istest
public class MonthlyBill_batchClass_Test {
   @testsetup
    static void setup(){
        list<job__c> myjob=new list<job__c>();
        list<monthly_bill__c> mybills=new list<monthly_bill__c>();
        for(integer i=0;i<10;i++){
            job__c jobs=new job__c();
            jobs.name='myjob' +i;
            jobs.Job_Start_Date__c=date.newInstance(2019, 04, 01);
            jobs.Job_End_Date__c=date.newInstance(2019, 06, 31);
            myjob.add(jobs);
        }
        insert myjob;
        for(job__c jo :[select id,name from job__c]){
            Monthly_Bill__c bill=new Monthly_Bill__c();
            bill.Name='all mybill';
            bill.Bill_Start_Date__c=date.newInstance(2019, 04, 01);
            bill.Bill_End_Date__c=date.newInstance(2019, 04, 31);
            bill.job__c=jo.id;
            mybills.add(bill);
        }
        insert mybills;
    }
    static testmethod void test(){
        Test.startTest();
        MonthlyBill_batchClass mb = new MonthlyBill_batchClass();
        Id batchId = Database.executeBatch(mb);
        Test.stopTest();
       System.assertEquals(10, [select count() from Monthly_Bill__c where name = 'all mybill']);

       
    }
}