public void RemoveAt_EventsRaisedWithCorrectArgumentsAndItemRemoved()
{
int index = 0, item = 3;
var subject = new NotifyingList <int> {
3
};
subject.Removing += (sender, e) =>
{
Assert.That(e.Index, Is.EqualTo(index));
Assert.That(e.Value, Is.EqualTo(item));
Assert.That(e.IsCancelled, Is.False);
};
subject.Removed += (sender, e) =>
{
Assert.That(e.Index, Is.EqualTo(index));
Assert.That(e.Value, Is.EqualTo(item));
};
subject.RemoveAt(0);
Assert.That(subject.Count, Is.EqualTo(0));
}
public void RemoveAt_OutOfBounds_Exception()
{
var subject = new NotifyingList <int> {
3
};
Assert.That(() => subject.RemoveAt(2), Throws.InstanceOf <ArgumentOutOfRangeException>());
}
public void RemoveAt_EventsRaised()
{
bool removingRaised = false, removedRaised = false;
var subject = new NotifyingList <int> {
3
};
subject.Removing += (sender, args) => removingRaised = true;
subject.Removed += (sender, args) => removedRaised = true;
subject.RemoveAt(0);
Assert.That(removingRaised, Is.True);
Assert.That(removedRaised, Is.True);
}
public void RemoveAt_CanCancelDeletion()
{
bool removedRaised = false;
var subject = new NotifyingList <int> {
3
};
subject.Removing += ((sender, e) => e.Cancel());
subject.Removed += delegate
{
removedRaised = true;
};
subject.RemoveAt(0);
Assert.That(removedRaised, Is.False);
Assert.That(subject[0], Is.EqualTo(3));
}
