Validate the roles within Power BI Desktop After you've created your roles, test the results of the roles within Power BI Desktop. From the Modeling tab, select View as. The View as roles window appears, where you see the roles you've created. Select a role you created, and then select OK to apply that role. The report renders the data relevant for that role. You can also select Other user and supply a given user. Select OK. The report renders based on what that user can see. Reference: https://docs.microsoft.com/en-us/power-bi/admin/service-admin-rls
Validate the roles within Power BI Desktop
After you've created your roles, test the results of the roles within Power BI Desktop.
From the Modeling tab, select View as.
The View as roles window appears, where you see the roles you've created.
Select a role you created, and then select OK to apply that role.
The report renders the data relevant for that role.
You can also select Other user and supply a given user.
Select OK.
The report renders based on what that user can see.
Reference:
https://docs.microsoft.com/en-us/power-bi/admin/service-admin-rls