String s2 = "fives ";
String s3 = "kick ";
String s4 = "ass ";
String s5 = "yo";
String exp = "high fives kick ass yo";
EvalFunc<String> sConcat = new StringConcat();
Tuple ts = TupleFactory.getInstance().newTuple(5);
ts.set(0, s1);
ts.set(1, s2);
ts.set(2, s3);
ts.set(3, s4);
ts.set(4, s5);
String res = sConcat.exec(ts);
msg = "[Testing StringConcat on >2 tuples input type: String]";
assertTrue(msg, res.equals(exp));
}