public void AddAll_triggers_both_add_events_for_each_item()
{
// Arrange
int beforeAddCalls = 0, afterAddCalls = 0;
var sut = new EventRaisingSet <Person> (_source);
EventHandler <BeforeModifyEventArgs <Person> > incrementBefore = (sender, e) => beforeAddCalls++;
EventHandler <AfterModifyEventArgs <Person> > incrementAfter = (sender, e) => afterAddCalls++;
int itemCount = 3;
var items = Enumerable.Range(0, 3).Select(x => new Person());
sut.BeforeAdd += incrementBefore;
sut.AfterAdd += incrementAfter;
// Act
sut.AddAll(items);
sut.BeforeAdd -= incrementBefore;
sut.AfterAdd -= incrementAfter;
// Assert
Assert.AreEqual(itemCount, beforeAddCalls, "Before add");
Assert.AreEqual(itemCount, afterAddCalls, "After add");
}
public void Constructor_does_not_raise_an_exception()
{
// Act
var sut = new EventRaisingSet <Person> (_source);
// Assert
Assert.NotNull(sut);
}
public void Add_triggers_CollectionChanged()
{
var sut = new EventRaisingSet <Person> (_source);
NotifyCollectionChangedEventArgs capturedArgs = default;
void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs args) => capturedArgs = args;
sut.CollectionChanged += OnCollectionChanged;
sut.Add(new Person());
sut.CollectionChanged -= OnCollectionChanged;
Assert.That(capturedArgs, Is.Not.Null);
}
