map = GenRandomData.genRandMap(r, 10);
Tuple t = TupleFactory.getInstance().newTuple();
t.append(map);
for(Map.Entry<String, Object> e : map.entrySet()) {
op.setLookUpKey(e.getKey());
plan.attachInput(t);
Result res = op.getNext(map);
//System.out.println(e.getValue() + " : " + res.result);
assertEquals(e.getValue(), res.result);
}