Original link: Poland shoots down Russian drones in its airspace for the first time, accuses Moscow of ‘act of aggression’ / CNN.
I find it way more likely that the drones was intended to sneak into Ukraine via the Polish-Ukraine border than the drones was intended to test Polish air defense. Russia is not ready to attack NATO. Yet.
But no matter what it confirms that Russia is agressive and has little respect for the west and NATO.