public static IEventRecorder RaiseCollectionChange <T>(this EventAssertions <T> self,
object subject,
NotifyCollectionChangedEventArgs args)
{
var wrappedA = new NColChngEvtArgFix(args);
bool AssertEvent(NotifyCollectionChangedEventArgs arg)
{
return(new NColChngEvtArgFix(arg).IsSameOrEqualTo(wrappedA));
}
var eventRecorder = self.Raise(nameof(INotifyCollectionChanged.CollectionChanged)).WithSender(subject);
var targetEvents = eventRecorder.First().Parameters.OfType <NotifyCollectionChangedEventArgs>().ToList();
if (!targetEvents.Any())
{
throw new ArgumentException("No argument of event " + eventRecorder.EventName + " is of type <" + (object)typeof(NotifyCollectionChangedEventArgs) + ">.");
}
if (!targetEvents.Any(AssertEvent))
{
Execute.Assertion.FailWith("Expected at least one event with arguments matching {0}, but found {1}.", args, eventRecorder.ToList());
}
return(eventRecorder);
}
public static IEventRecorder RaisePropertyChange <T>(this EventAssertions <T> self,
object subject,
string propertyName)
{
return(self.Raise(nameof(INotifyPropertyChanged.PropertyChanged))
.WithSender(subject)
.WithArgs <PropertyChangedEventArgs>(a => a.PropertyName == propertyName));
}
public void Create_From_ObservableCollection()
{
var backend = new ObservableCollection <string>();
var binding = backend.ToBinding();
using (var monitoredBinding = binding.Monitor <INotifyCollectionChanged>())
{
backend.Add("first");
EventAssertions <INotifyCollectionChanged> ass = monitoredBinding.Should();
ass
.RaiseCollectionChange(binding, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, BindingAssertions.AsList("first"), 0));
}
}
