public void WeakEventManagerShouldRemoveWeakListenersPropertyChanged()
{
const int count = 100;
const string propertyName = "test";
var model = new BindingSourceModel();
var listeners = new List <WeakReference>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
weakEventManager.Subscribe(model, propertyName, listenerMock);
listeners.Add(new WeakReference(listenerMock));
listenerMock.Handle = (o, o1) => { };
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
model.OnPropertyChanged(propertyName + "1");
model.OnPropertyChanged(propertyName);
model.OnPropertyChanged(propertyName);
listeners.All(reference => reference.Target == null).ShouldBeTrue();
}
public void CreateNotifiableMemberGenericObserveTest()
{
bool isInvoked = false;
bool raiseEvent = true;
var listenerMock = new EventListenerMock
{
Handle = (o, o1) => isInvoked = true
};
var source = new BindingSourceModel();
const string path = "path";
var property = AttachedBindingMember.CreateNotifiableMember <BindingSourceModel, string>(path, (info, o) => null,
(info, o, v) => raiseEvent);
IDisposable subscriber = property.TryObserve(source, listenerMock);
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeTrue();
subscriber.ShouldNotBeNull();
raiseEvent = false;
isInvoked = false;
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeFalse();
raiseEvent = true;
isInvoked = false;
property.SetValue(source, new object[] { null });
isInvoked.ShouldBeTrue();
subscriber.Dispose();
isInvoked = false;
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeFalse();
}
public void WeakEventManagerShouldSubscribeAndUnsubscribePropertyChangedEventSeveralSources()
{
const int count = 100;
const string propertyName = "test";
var model = new BindingSourceModel();
var listeners = new List <EventListenerMock>();
var invokedItems = new List <EventListenerMock>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
var disposable = weakEventManager.Subscribe(model, propertyName, listenerMock);
listeners.Add(listenerMock);
listenerMock.Handle = (o, o1) =>
{
invokedItems.Add(listenerMock);
disposable.Dispose();
};
}
model.OnPropertyChanged(propertyName + "1");
model.OnPropertyChanged(propertyName);
model.OnPropertyChanged(propertyName);
invokedItems.Count.ShouldEqual(count);
foreach (var listener in listeners)
{
invokedItems.Contains(listener).ShouldBeTrue();
}
}
public void CreateEventMemberAttachTest()
{
bool isInvoked = false;
var source = new BindingSourceModel();
IEventListener listener = new EventListenerMock();
const string path = "path";
var property = AttachedBindingMember.CreateEvent(path, (info, o, arg3) => null,
(model, args) =>
{
model.ShouldEqual(source);
args.ShouldNotBeNull();
isInvoked = true;
});
property.SetValue(source, new object[] { listener });
isInvoked.ShouldBeTrue();
isInvoked = false;
property.SetValue(source, new object[] { null });
isInvoked.ShouldBeFalse();
source = new BindingSourceModel();
property.SetValue(source, new object[] { listener });
isInvoked.ShouldBeTrue();
}
public void CreateMemberGenericObserveTest()
{
bool isInvoked = false;
IDisposable result = null;
var listenerMock = new EventListenerMock();
var source = new BindingSourceModel();
const string path = "path";
var property = AttachedBindingMember.CreateMember <BindingSourceModel, string>(path, (info, o) => null,
(info, o, v) => { },
(info, o, arg3) =>
{
isInvoked = true;
info.ShouldNotBeNull();
o.ShouldEqual(source);
arg3.ShouldEqual(listenerMock);
return(result);
});
property.TryObserve(source, listenerMock).ShouldBeNull();
isInvoked.ShouldBeTrue();
isInvoked = false;
result = new ActionToken(() => { });
property.TryObserve(source, listenerMock).ShouldEqual(result);
isInvoked.ShouldBeTrue();
}
public void CreateMemberGenericObserveEventTest()
{
bool isInvoked = false;
var listenerMock = new EventListenerMock
{
Handle = (o, o1) => isInvoked = true
};
var source = new BindingSourceModel();
const string path = "path";
source.RaiseEvent();
var property = AttachedBindingMember.CreateMember <BindingSourceModel, string>(path, (info, o) => null,
(info, o, v) => { }, BindingSourceModel.EventName);
IDisposable subscriber = property.TryObserve(source, listenerMock);
source.RaiseEvent();
isInvoked.ShouldBeTrue();
subscriber.ShouldNotBeNull();
isInvoked = false;
source.RaiseEvent();
isInvoked.ShouldBeTrue();
subscriber.Dispose();
isInvoked = false;
source.RaiseEvent();
isInvoked.ShouldBeFalse();
}
public void AutoPropertyObserveTest()
{
bool isInvoked = false;
var listenerMock = new EventListenerMock
{
Handle = (o, o1) => isInvoked = true
};
var source = new BindingSourceModel();
const string path = "path";
var property = AttachedBindingMember.CreateAutoProperty(path, typeof(string));
IDisposable subscriber = property.TryObserve(source, listenerMock);
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeTrue();
subscriber.ShouldNotBeNull();
isInvoked = false;
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeFalse();
isInvoked = false;
property.SetValue(source, new object[] { null });
isInvoked.ShouldBeTrue();
subscriber.Dispose();
isInvoked = false;
property.SetValue(source, new object[] { path });
isInvoked.ShouldBeFalse();
}
public void WeakEventManagerShouldSubscribeAndUnsubscribeEvent()
{
int invokedCount = 0;
var model = new BindingSourceModel();
var listenerMock = new EventListenerMock();
IWeakEventManager weakEventManager = CreateWeakEventManager();
var disposable = weakEventManager.TrySubscribe(model, BindingSourceModel.EventName, listenerMock);
listenerMock.Handle = (o, o1) => invokedCount++;
invokedCount.ShouldEqual(0);
model.RaiseEvent();
invokedCount.ShouldEqual(1);
disposable.Dispose();
model.RaiseEvent();
invokedCount.ShouldEqual(1);
}
public void CreateEventGenericTest()
{
IEventListener listener = new EventListenerMock();
var source = new BindingSourceModel();
const string path = "path";
var @event = AttachedBindingMember.CreateEvent <BindingSourceModel>(path, (info, o, arg3) => null);
@event.Path.ShouldEqual(path);
@event.Type.ShouldEqual(typeof(Delegate));
@event.CanRead.ShouldBeTrue();
@event.CanWrite.ShouldBeTrue();
@event.Member.ShouldBeNull();
@event.MemberType.ShouldEqual(BindingMemberType.Event);
@event.GetValue(source, null).ShouldBeType <BindingActionValue>();
@event.SetValue(source, new object[] { listener });
var value = (BindingActionValue)@event.GetValue(source, null);
value.Member.ShouldEqual(@event);
value.MemberSource.Target.ShouldEqual(source);
}
public void WeakEventManagerShouldSubscribeAndUnsubscribePropertyChangedEvent()
{
const string propertyName = "test";
int invokedCount = 0;
var model = new BindingSourceModel();
var listenerMock = new EventListenerMock();
IWeakEventManager weakEventManager = CreateWeakEventManager();
var disposable = weakEventManager.Subscribe(model, propertyName, listenerMock);
listenerMock.Handle = (o, o1) => invokedCount++;
invokedCount.ShouldEqual(0);
model.OnPropertyChanged(propertyName + "1");
invokedCount.ShouldEqual(0);
model.OnPropertyChanged(propertyName);
invokedCount.ShouldEqual(1);
disposable.Dispose();
model.OnPropertyChanged(propertyName);
invokedCount.ShouldEqual(1);
}
public void WeakEventManagerShouldRemoveWeakListenersEvent()
{
const int count = 100;
var model = new BindingSourceModel();
var listeners = new List <WeakReference>();
IWeakEventManager weakEventManager = CreateWeakEventManager();
for (int i = 0; i < count; i++)
{
var listenerMock = new EventListenerMock();
weakEventManager.TrySubscribe(model, BindingSourceModel.EventName, listenerMock);
listeners.Add(new WeakReference(listenerMock));
listenerMock.Handle = (o, o1) => { };
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
model.RaiseEvent();
model.RaiseEvent();
listeners.All(reference => reference.Target == null).ShouldBeTrue();
}
public void CreateEventGenericSetterTest()
{
bool isInvoked = false;
var source = new BindingSourceModel();
IEventListener listener = new EventListenerMock();
const string path = "path";
var property = AttachedBindingMember.CreateEvent <BindingSourceModel>(path, (info, o, arg3) =>
{
info.ShouldNotBeNull();
o.ShouldEqual(source);
arg3.ShouldEqual(listener);
isInvoked = true;
return(null);
});
property.Path.ShouldEqual(path);
property.Type.ShouldEqual(typeof(Delegate));
property.CanRead.ShouldBeTrue();
property.CanWrite.ShouldBeTrue();
property.MemberType.ShouldEqual(BindingMemberType.Event);
property.SetValue(source, new object[] { listener });
isInvoked.ShouldBeTrue();
}
