life in uk test only carried out in the uk..
you've been married for 4yrs and lived outside the uk for 4yrs ? then when you come to the uk you can take the test and apply for ilr when you've passed..
but you better explain your circumstances, why your asking about flr, ilr , life in uk test and if you've lived togther outside the uk for 4yrs ?? so i can give you a better answer