The so-called PCB Board test point is used to test whether the zero devices on the circuit board meet the specifications and weldability or not. 
The measurement of China Printed Circuit Board, the general use of ICT(In-Circuit-Test), which uses bed of nails to contact all parts of the board that need to be measured for testing. The test on the whole machine speed quickly, but when the probe touches the part or the foot, it may crush it. So that the device is is no problem, but has become a problem.
In order to solve this problem, there is a test point. The two ends of the parts are added with a pair of rounded dots that are not covered by welding, probe allows for testing access to these points, without direct access those measured electronic parts, so there is no need to worry about being part destroy.