When it comes to volume manufacturing, using the most apprpriate and efficient end-of-assembly-line test procedure for your product is part of the job. Your assembly house aren’t mind-readers, and left to their own devices can make shockingly bad chocies! Designing and manufacturing a solid test jig for your PCB(s) is all part of the process, but too often left as an afterthought.  Do you do flying-probe testing, or bed-of-nails testing? Or will functional testing suffice? Your designer must work with the assembler, and perhaps a 3rd-party test jig manufacturing service, to produce robust test jigs that will withstand many thousands/hundreds-of-thousands of test iterations, under a rigorously designed & documented test procedure.