001 package aima.test.coretest;
002
003 import junit.framework.TestCase;
004 import aima.basic.Percept;
005 import aima.basic.simplerule.ANDCondition;
006 import aima.basic.simplerule.EQUALCondition;
007 import aima.basic.simplerule.NOTCondition;
008 import aima.basic.simplerule.ORCondition;
009 import aima.basic.simplerule.Rule;
010
011 /**
012 * @author Ciaran O'Reilly
013 *
014 */
015 public class RuleTest extends TestCase {
016
017 public void testEQUALRule() {
018 Rule r = new Rule(
019 new EQUALCondition("car-in-front-is-braking", "true"),
020 "initiate-braking");
021
022 assertEquals("initiate-braking", r.getAction());
023
024 assertEquals("if car-in-front-is-braking==true then initiate-braking.",
025 r.toString());
026
027 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
028 "true")));
029
030 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
031 "false")));
032
033 assertEquals(false, r.evaluate(new Percept(
034 "car-in-front-is-indicating", "true")));
035 }
036
037 public void testNOTRule() {
038 Rule r = new Rule(new NOTCondition(new EQUALCondition(
039 "car-in-front-is-braking", "true")), "initiate-braking");
040
041 assertEquals("initiate-braking", r.getAction());
042
043 assertEquals(
044 "if ![car-in-front-is-braking==true] then initiate-braking.", r
045 .toString());
046
047 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
048 "true")));
049
050 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
051 "false")));
052
053 assertEquals(true, r.evaluate(new Percept("car-in-front-is-indicating",
054 "true")));
055 }
056
057 public void testANDRule() {
058 Rule r = new Rule(new ANDCondition(new EQUALCondition(
059 "car-in-front-is-braking", "true"), new EQUALCondition(
060 "car-in-front-tires-smoking", "true")), "emergency-braking");
061
062 assertEquals("emergency-braking", r.getAction());
063
064 assertEquals(
065 "if [car-in-front-is-braking==true && car-in-front-tires-smoking==true] then emergency-braking.",
066 r.toString());
067
068 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
069 "true")));
070
071 assertEquals(false, r.evaluate(new Percept(
072 "car-in-front-tires-smoking", "true")));
073
074 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
075 "true", "car-in-front-tires-smoking", "true")));
076
077 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
078 "false", "car-in-front-tires-smoking", "true")));
079
080 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
081 "true", "car-in-front-tires-smoking", "false")));
082 }
083
084 public void testORRule() {
085 Rule r = new Rule(new ORCondition(new EQUALCondition(
086 "car-in-front-is-braking", "true"), new EQUALCondition(
087 "car-in-front-tires-smoking", "true")), "emergency-braking");
088
089 assertEquals("emergency-braking", r.getAction());
090
091 assertEquals(
092 "if [car-in-front-is-braking==true || car-in-front-tires-smoking==true] then emergency-braking.",
093 r.toString());
094
095 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
096 "true")));
097
098 assertEquals(true, r.evaluate(new Percept("car-in-front-tires-smoking",
099 "true")));
100
101 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
102 "true", "car-in-front-tires-smoking", "true")));
103
104 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
105 "false", "car-in-front-tires-smoking", "true")));
106
107 assertEquals(true, r.evaluate(new Percept("car-in-front-is-braking",
108 "true", "car-in-front-tires-smoking", "false")));
109
110 assertEquals(false, r.evaluate(new Percept("car-in-front-is-braking",
111 "false", "car-in-front-tires-smoking", "false")));
112 }
113 }