assertEquals("Name is, ", "round", round.getName());
assertEquals("Number of arguments, ", 1, round.getFunctionName().getArgumentCount());
Function roundFunction = ff.function("round", literal_1);
assertEquals("round of (1.0):", (int) Math.round(1.0),
((Integer) roundFunction.evaluate(null)).intValue(), 0.00001);
roundFunction = ff.function("round", literal_m1);
assertEquals("round of (-1.0):", (int) Math.round(-1.0),
((Integer) roundFunction.evaluate(null)).intValue(), 0.00001);