I would note that Iran, as part of the nuclear deal,
did not agree to stop ballistic missile testing. That is the subject of other sanctions that were not rolled back (and, in fact,
increased) following Iran's continued testing of ballistic missiles. Instead, Iran agreed to several aspects with relations to its nuclear capabilities - some of which it has
fulfilled.
The bluster from Iranian diplomats is aimed at trying to link the newly imposed sanctions for the ballistic missile testing to the nuclear deal. The requirements and sanctions of each are not related in the eyes of the six nations that reached the nuclear agreement with Iran. If Iran wishes to link the two together, and takes actions that are inconsistent with the requirements from the nuclear deal, then the "
snap back" provision will kick in and the Iranian sanctions from the nuclear deal will be reimposed.
The fact that Iran, during its most recent election, virtually allowed a sweep for the moderate faction of the Government makes that later move unlikely.