How to judge the quality of a Schottky diode if it cannot be removed

When there is a problem with the Schottky diode circuit, it is necessary to determine the quality of the Schottky diode, but it cannot be removed. How to determine the quality of the Schottky diode at this time?

1、 The power supply can be connected to measure the output voltage of the Schottky diode. If it is abnormal or there is no voltage output, it indicates that the Schottky diode is faulty.

2、 It is also possible to measure the forward and reverse resistance of a single Schottky diode without charging. If the difference in forward and reverse resistance is small, then this Schottky diode has a problem.