Well it is being tested regardless. Fewer Iranian salvos at zion means they're far from running out. Anyone's guess on real numbers as they're getting replenished faster than getting exhausted at the moment. That will require an effort on a grandeur scale by Iran in sheer numbers every single day... because their end goal is the day after.
That being said the flipside is also true as they seek to bury or destroy Iranian ability to mount a response. Which is why the emphasis was to reflect the ability, or purported capacity of Iranian missile capability still intact. With number ranging upto ~80% being destroyed or buried(overall ~90% decline from peak activity). Until the uptick in salvos overnight however, it is highly unlikely that they'd even attempt another day of over 300 any other day. Suffice to say that they're under the scanner on their ability to sustain.
But hey orange claimed victory from the onset ... an ongoing one at that...