public void RemoveAt_triggers_CollectionChanged()
{
var sut = new EventRaisingList <Person> (_source);
NotifyCollectionChangedEventArgs capturedArgs = default;
void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs args) => capturedArgs = args;
sut.CollectionChanged += OnCollectionChanged;
sut.RemoveAt(1);
sut.CollectionChanged -= OnCollectionChanged;
Assert.That(capturedArgs, Is.Not.Null);
}
public void RemoveAt_includes_index_of_removed_item()
{
var sut = new EventRaisingList <Person> (_source);
AfterModifyEventArgs <Person> capturedArgs = default;
void OnAfterRemove(object sender, AfterModifyEventArgs <Person> args) => capturedArgs = args;
sut.AfterRemove += OnAfterRemove;
sut.RemoveAt(1);
sut.AfterRemove -= OnAfterRemove;
Assert.That(capturedArgs, Is.InstanceOf <AfterModifyListEventArgs <Person> >().And.Property(nameof(IHasListIndex.Index)).EqualTo(1));
}
public void RemoveAt_triggers_both_remove_events()
{
// Arrange
var sut = new EventRaisingList <Person> (_source);
sut.BeforeRemove += RecordingCallbackOne;
sut.AfterRemove += RecordingCallbackTwo;
// Act
sut.RemoveAt(1);
sut.BeforeRemove -= RecordingCallbackOne;
sut.AfterRemove -= RecordingCallbackTwo;
// Assert
Assert.IsTrue(CallbackOneCalled, "Callback one");
Assert.IsTrue(CallbackTwoCalled, "Callback two");
}
