EvalFunc<DataAtom> IEEEremainder = new IEEEremainder();
Tuple tup = new Tuple(2);
tup.setField(0, -0.5);
tup.setField(1,0.6);
DataAtom output = new DataAtom();
IEEEremainder.exec(tup, output);
double expected = Math.IEEEremainder(-0.5,0.6);
double actual = (new Double(output.strval())).doubleValue();
assertEquals(actual, expected, delta);
}