a method for testing a punctured tyre &# 39 ; s resistance to a loss in pressure includes : creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall ; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure ; stopping the running of the tyre ; and determining , for each puncture , a pressure loss resistance index based on an estimate of a leak rate of the puncture .