@Test
public void testDefault() throws ClassNotFoundException, CDKException, Exception {

    IRule rule = new RDBERule();
    Object[] objects = rule.getParameters();
    Assert.assertEquals(2, objects.length);
    double min = (Double) objects[0];
    double max = (Double) objects[1];
    Assert.assertEquals(-0.5, min, 0.00001);
    Assert.assertEquals(30, max, 0.00001);
}