Custom PCB board has to go through the flying probe test?

When Custom PCB board from China PCB manufacturer, does each board has to go through the flying probe test?

For small batch PCB system board, system board, will be on the model fly needle detection, if the test through will deliver the goods to you; for high-volume PCB system board, system board, will do a test needle plate tester for PCB test, than flying probe test more quickly fly. Because this can rest assured the sincerity of the PCB board manufacturer.

Flying probe test for PCB is the electrical test of some main problems the solution, mainly check PCB is open, short circuit; it used a probe to replace needle, using multiple driven by a motor, can fast moving electrical probe with the device pins make contact and electrical measurements were performed.