public void CanSubscribeAndUnsubscribeObserver()
{
TestState testObj = new TestState();
TestState.EventSubscriberCB cb1 = (List <TestStateChangeEvent> changeEventList) =>
{
};
TestState.EventSubscriberCB cb2 = (List <TestStateChangeEvent> changeEventList) =>
{
};
// case 1 register
testObj.Subscribe(cb1, TestStateChangeEvent.INT_EVT);
testObj.Subscribe(cb2, TestStateChangeEvent.CON_EVT);
Assert.True(testObj.IsObservingEventID(TestStateChangeEvent.INT_EVT));
Assert.True(testObj.IsSubscribedCB(cb1));
Assert.True(testObj.IsObservingEventID(TestStateChangeEvent.CON_EVT));
Assert.True(testObj.IsSubscribedCB(cb2));
// case 2 unregister alias with wrong cb
testObj.Unsubscribe(cb2, TestStateChangeEvent.INT_EVT);
Assert.True(testObj.IsObservingEventID(TestStateChangeEvent.INT_EVT));
Assert.True(testObj.IsSubscribedCB(cb1));
// case 3 unregister alias with wrong alias
testObj.Unsubscribe(cb1, TestStateChangeEvent.WIS_EVT);
Assert.True(testObj.IsObservingEventID(TestStateChangeEvent.INT_EVT));
Assert.True(testObj.IsSubscribedCB(cb1));
// case 4 unregister successfully
testObj.Unsubscribe(cb1, TestStateChangeEvent.INT_EVT);
Assert.False(testObj.IsObservingEventID(TestStateChangeEvent.INT_EVT));
Assert.False(testObj.IsSubscribedCB(cb1));
}
public void CanObservePropertyChanges()
{
int numStrDexEventReceived = 0;
TestState testObj = new TestState();
// This subscriber only concerns itself with changes in STR and DEX.
TestState.EventSubscriberCB strDexCb = (List <TestStateChangeEvent> changeEventList) =>
{
Assert.AreEqual(2, changeEventList.Count);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.STR_EVT, 1);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.DEX_EVT, 1);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.INT_EVT, 0);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.WIS_EVT, 0);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.CON_EVT, 0);
Assert.AreEqual(10, testObj.Strength);
Assert.AreEqual(5, testObj.Dexterity);
numStrDexEventReceived++;
};
testObj.Subscribe(strDexCb, TestStateChangeEvent.STR_EVT, TestStateChangeEvent.DEX_EVT);
// This subscriber only conerns itself with changes in INT.
int numIntEventReceived = 0;
TestState.EventSubscriberCB intCb = (List <TestStateChangeEvent> changeEventList) =>
{
Assert.AreEqual(2, changeEventList.Count);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.STR_EVT, 0);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.DEX_EVT, 0);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.INT_EVT, 2);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.WIS_EVT, 0);
AssertIsContainsEvent(changeEventList, TestStateChangeEvent.CON_EVT, 0);
// only stable state is observed.
Assert.AreEqual(10, testObj.Intelligence);
numIntEventReceived++;
};
testObj.Subscribe(intCb, TestStateChangeEvent.INT_EVT);
// This subscriber only concerns intself with changes in CON.
int numConEventReceived = 0;
TestState.EventSubscriberCB conCb = (List <TestStateChangeEvent> changeEventList) =>
{
numConEventReceived++;
};
testObj.Subscribe(conCb, TestStateChangeEvent.CON_EVT);
// make the changes
testObj.Strength = 10;
testObj.Dexterity = 5;
testObj.Intelligence = 8;
testObj.Intelligence += 2;
Assert.IsTrue(testObj.HasUnpublishedChanges);
testObj.Publish();
// when a subscriber subscribes to more than 1 propertyAlias and both of them were triggered, only 1 event was received.
Assert.AreEqual(1, numStrDexEventReceived);
Assert.AreEqual(1, numIntEventReceived);
// when a subscriber subscribes to a propertyAlias that was not triggered, no event was received.
Assert.AreEqual(0, numConEventReceived);
// All unpublished changes should be published.
Assert.IsFalse(testObj.HasUnpublishedChanges);
}
