Yes - a tester is a good thing to have and use.
Would have found your bad fuse.

A multitester would do this job, or a simple continuity tester would also do it.

If you aren't familiar with these, or if electrical theory gave you nightmares, start by recognizing that these two tools aren't up there with rocket science. If you can navigate this message board you can learn to use those testers. Far better than swapping around fuses or sometimes bulbs or flashlight batteries in an attempt to figure out which one is bad.
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