public void SetSourceNull()
{
using (var view = new ReadOnlySerialView <int>(new[] { 1, 2, 3 }))
{
using (var actual = view.SubscribeAll())
{
view.SetSource(null);
CollectionAssert.IsEmpty(view);
var expected = new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source")
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
}
}
public static void FromObservableOfIEnumerable()
{
using var subject = new Subject <IEnumerable <int> >();
using (var view = subject.AsReadOnlyView())
{
using var actual = view.SubscribeAll();
subject.OnNext(new[] { 1, 2 });
CollectionAssert.AreEqual(new[] { 1, 2 }, view);
var expected = new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source"),
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
Assert.AreEqual(false, subject.IsDisposed);
}
public static void ClearSource()
{
var source = new ObservableCollection <int> {
1, 2, 3
};
using var view = new ReadOnlySerialView <int>(source);
using var actual = view.SubscribeAll();
view.ClearSource();
CollectionAssert.IsEmpty(view);
var expected = new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source"),
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
public static void SetSourceNoChange()
{
using var view = new ReadOnlySerialView <int>(new[] { 1, 2, 3 });
using var actual = view.SubscribeAll();
view.SetSource(new[] { 1, 2, 3 });
CollectionAssert.AreEqual(new[] { 1, 2, 3 }, view);
var expected = new[] { CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source") };
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
view.SetSource(new ObservableCollection <int> {
1, 2, 3
});
CollectionAssert.AreEqual(new[] { 1, 2, 3 }, view);
expected = new[]
{
CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source"),
CachedEventArgs.GetOrCreatePropertyChangedEventArgs("Source"),
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
