Your first comment belongs to fantasy land rather than reality. 6 months to miniaturise a warhead and test it, maybe. You clearly have very little understanding of Iran's centrifuge constraints or pace of enrichment.
I said 5-10 instead of 1 to account for 1) first/second strike capability, 2) missile failure and 3) missile interceptions.
Once again; Iran has no intention to strike any country in its region or any region with WMD. Such an act runs contrary to Iran's constitution, as well as its declared principles banning the use of any WMD.
Regarding your fantasyland; In this age, actual "physical" testing is no longer necessary. Maybe that seems like a fantasy to you, but it's based on, or verifiable by observation or experience rather than theory or pure logic. It's a method to replicate an actual nuclear explosive test that has been in practical use since mid 1990s. What is needed for that is a super-computer. Iran possess such computer. Simorgh supercomputer was created by Iranian scientists at the Amirkabir University of Technology in Tehran.
- Based on the TIA-942 standard, the Simorgh supercomputer consists of 42 shelves that cover an area of 250 square meters. Further, the supercomputer will be developed to 84 shelves that will cover 400 square meters.
- The Simorgh supercomputer will have powerful means of using artificial intelligence in several fields of research like image and data processing.
There is something called simulation which is sufficient to validate any given design including a fabricated miniaturized thermonuclear warhead. Iranians have super computers which is required to run such simulations successfully.
Computers have become at least a hundred-thousand times more powerful, and modern integrated design codes now more realistically capture the behavior of real nuclear devices.
As a result of these advancements, current modern, integrated nuclear weapon design codes have reduced a number of adjustment parameters, which previously required a nuclear explosive test to be calibrated. Weapons designers can now conduct hundreds of calculations to determine where the results are most sensitive to model uncertainties or fundamental data.
Moreover, Iran already made the enclosures, the casing, and the required apparatus in early 2000s, the only missing part is the core which could be fabricated and installed in the casings.
The known Iranian atomic agency sites are intended to keep the IAEA & the west busy looking at the wrong sites, which worked as intended.