West Coast,
1. The answer for the 1st question is trivial and I am sure you know it: such data are not for public domain. But since my country has all kinds of modern weapons, no doubt that IADS components were tested against a broad range of targets including various types of cruise missiles.
2. About client states, as you put it, it should first be mentioned that the letter "I" is not applicable for them. And stand-alone complexes in hands of the guys who are hardly literal and had problems with discipline and motivation are nothing but a piece of metal. Look e.g., how your Saudi clients use F-15s: every now and then we hear that they hit wrong targets and kill hundreds of civilians.
Also, are you sure the Syrians had anything working at that airfield even to shoot at TALMs?