@Test
public void testForall() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_Forall.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final State state = new State("SP");
workingMemory.insert(state);
final Person bob = new Person("Bob");
bob.setStatus(state.getState());
bob.setLikes("stilton");
workingMemory.insert(bob);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.insert(new Cheese(bob.getLikes(), 10));
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testCollectModify() throws Exception {
// read in the source
final Reader reader = new InputStreamReader(getClass().getResourceAsStream("test_Collect.drl"));
RuleBase ruleBase = loadRuleBase(reader);
StatefulSession wm = ruleBase.newStatefulSession();
List results = new ArrayList();
wm.setGlobal("results", results);
final Cheese[] cheese =
new Cheese[] {
new Cheese("stilton", 10),
new Cheese("stilton", 2),
new Cheese("stilton", 5),
new Cheese("brie", 15),
new Cheese("brie", 16),
new Cheese("provolone", 8)
};
final Person bob = new Person("Bob", "stilton");
final FactHandle[] cheeseHandles = new FactHandle[cheese.length];
for (int i = 0; i < cheese.length; i++) {
cheeseHandles[i] = wm.insert(cheese[i]);
}
final FactHandle bobHandle = wm.insert(bob);
// ---------------- 1st scenario
int fireCount = 0;
wm.fireAllRules();
assertEquals(++fireCount, results.size());
assertEquals(3, ((Collection) results.get(fireCount - 1)).size());
assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
// ---------------- 2nd scenario
final int index = 1;
cheese[index].setPrice(9);
wm.update(cheeseHandles[index], cheese[index]);
wm.fireAllRules();
assertEquals(++fireCount, results.size());
assertEquals(3, ((Collection) results.get(fireCount - 1)).size());
assertEquals(ArrayList.class.getName(), results.get(fireCount - 1).getClass().getName());
// ---------------- 3rd scenario
bob.setLikes("brie");
wm.update(bobHandle, bob);
wm.fireAllRules();
assertEquals(fireCount, results.size());
// ---------------- 4th scenario
wm.retract(cheeseHandles[3]);
wm.fireAllRules();
// should not have fired as per constraint
assertEquals(fireCount, results.size());
}