Yes being a resistive load, bulbs are a natural choice for testing, and provide a visual cue telling voltage is present and level of Ampere flow. There are times I have wished for an easy way to hook up two or more bulbs (sometimes in series, sometimes parallel). Example, start with one bulb to test with low Amperes, then test with more bulbs. It would require several lamp sockets (a few in series, a few in parallel).
Since an empty socket doesn't pass current, we could screw in fuses in empty sockets, to remove wherever we wish to place a bulb.