intFunc = new INDEXOF();
input = TupleFactory.getInstance().newTuple(l);
intOutput = intFunc.exec(input);
assertTrue(intOutput.intValue()==4);
strFunc = new UPPER();
input = TupleFactory.getInstance().newTuple(inputStr);
expected = inputStrUpper;
output = strFunc.exec(input);
assertTrue(output.equals(expected));