}
@Test
public void testAttributes() {
final RuleModel m = new RuleModel();
final RuleAttribute at = new RuleAttribute("salience", "42");
m.addAttribute(at);
assertEquals(1, m.attributes.length);
assertEquals(at, m.attributes[0]);
final RuleAttribute at2 = new RuleAttribute("agenda-group", "x");
m.addAttribute(at2);
assertEquals(2, m.attributes.length);
assertEquals(at2, m.attributes[1]);
m.removeAttribute(0);