We're purchasing a new construction home and had an inspection done on it. The inspector flagged that the bathrooms were not GFCI protected. The builder is telling me that the panel is using leviton GFI breakers (https://www.leviton.com/en/products/lb115-df) in the panel in the garage. I think they are model LB115-DF. I bought my own GFCI tester (https://www.lowes.com/pd/Southwire-Analog-120-Volt-Test-Meter/1000970284) and tried using that on the receptacles. The circuits in the kitchen trip when I press the test button on the GFCI tester. In the bathrooms, when I press the test button nothing happens. The power stays on to the outlet. The garage and laundry room receptacles trip when I use the GCFI tester and press the test button. All of the resets are on the panel in the garage.
Is the GFCI Tester I'm using not the right tool to test GFI Circuit Breakers? Also, all the breakers in the panel look the same. So I would assume all the circuits in the house have that protection, but it seems like only the Kitchen, Laundry, and Garage trip with the tester.
Is there a potential wiring issue here? Do I need a different tool for testing this type of breaker to be confident its working right?