Test cases need to be planned operations. The subject of the test case needs the coaching of a competent attorney before hand so they do not accidentally blow the case.

The easiest test case to do right now is on the SPO-7. All you would need to do is walk around the airport with a block of cheese in one pocket and crackers in the other.

Wait until you are approached and refuse to engage the BDO, TSO or LEO. The will get mad and somebody will frisk you for "officer's safety", they will find the cheese.

An officer can not claim that cheese feels like a weapon so it will kill the "officer's safety" portion of the frisk. If the officer states he thought it is a bomb, the next question is "why would you remove it from the pocket and not wait for the bomb squad".

Done right it will show the whole setup to be unconstitutional from the get go.