I am writing a test class for a batch class and I have a scenario which I am not able to cover.

There is a formula(Number) field **Age\_\_c** which is evaluated as `Today()-LastModifiedDate` and when **Age\_\_c =7**,an email is sent to record owner.Also,On insertion of record,a workflow will fire and will update few fields and the object can only be accessed by two profiles(Including Sys-Admin) and workflow will fire for both the profiles.

So,in test class,I am able to insert a record with `LastModifiedDate=Date.Today()-7`.After inserting the record,workflow is firing and LastModifiedDate becomes equal to Today's date.Hence,not able to cover the scenario.