Will a car pass the emissions test with a small leaking headgasket?

A car with a small leaking head gasket may not pass an emissions test, as even minor leaks can lead to increased emissions due to coolant or oil entering the combustion chamber. This can cause poor combustion and higher levels of harmful exhaust gases. Additionally, if the leak affects the engine's performance or triggers warning lights, it could result in a failed test. It's advisable to repair the head gasket before attempting the emissions test.