Not really. For example, everyone considers the UK to be a nuclear power.
Exactly what weapons they have seems to be tied to the deals of the US-UK defense agreements. The UK's development of fission weapons is well documented. The development of thermonuclear is unclear and its not exactly obvious when and how they tested proper thermonuclear weapons.
Pakistan probably had nuclear weapons decades before their official tests. The US even made them one heck of an offer to maintain this policy of uncertainty. Ultimately they would debut very small thermonuclear weapons. They probably can manufacture large scale nuclear weapons into the megaton range. Pakistan probably also has plenty of delivery options. But ultimately their arsenal is mainly just there to deter China or India's territorial expansion. Pakistan can't really threaten other nuclear powers and it seems unlikely that a country like France is just going to launch an invasion of Pakistan. So there isn't really too much reason to bother with more tests. Ambiguity is their ally.
Exactly what weapons they have seems to be tied to the deals of the US-UK defense agreements. The UK's development of fission weapons is well documented. The development of thermonuclear is unclear and its not exactly obvious when and how they tested proper thermonuclear weapons.
Pakistan probably had nuclear weapons decades before their official tests. The US even made them one heck of an offer to maintain this policy of uncertainty. Ultimately they would debut very small thermonuclear weapons. They probably can manufacture large scale nuclear weapons into the megaton range. Pakistan probably also has plenty of delivery options. But ultimately their arsenal is mainly just there to deter China or India's territorial expansion. Pakistan can't really threaten other nuclear powers and it seems unlikely that a country like France is just going to launch an invasion of Pakistan. So there isn't really too much reason to bother with more tests. Ambiguity is their ally.