public async Task WhenAddToSourceWithBufferTime()
{
var source = new ObservableCollection <int>();
using (var expected = source.SubscribeAll())
{
var bufferTime = TimeSpan.FromMilliseconds(20);
using (var view = new ReadOnlyDispatchingView <int>(source, bufferTime))
{
await Application.Current.Dispatcher.SimulateYield();
using (var actual = view.SubscribeAll())
{
source.Add(1);
await Application.Current.Dispatcher.SimulateYield();
CollectionAssert.IsEmpty(view);
CollectionAssert.IsEmpty(actual);
await Task.Delay(bufferTime);
await Task.Delay(bufferTime);
await Application.Current.Dispatcher.SimulateYield();
CollectionAssert.AreEqual(source, view);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
}
}
}
public async Task WhenManyAddsToSourceWithBufferTime()
{
var source = new ObservableCollection <int>();
var bufferTime = TimeSpan.FromMilliseconds(20);
using (var view = new ReadOnlyDispatchingView <int>(source, bufferTime))
{
await Application.Current.Dispatcher.SimulateYield();
using (var actual = view.SubscribeAll())
{
source.Add(1);
source.Add(1);
await Application.Current.Dispatcher.SimulateYield();
CollectionAssert.IsEmpty(view);
CollectionAssert.IsEmpty(actual);
await Task.Delay(bufferTime).ConfigureAwait(false);
await Task.Delay(bufferTime).ConfigureAwait(false);
await Application.Current.Dispatcher.SimulateYield();
CollectionAssert.AreEqual(source, view);
var expected = new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
};
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}
}
}
public static async Task WhenAddToSource()
{
var source = new ObservableCollection <int>();
using var expected = source.SubscribeAll();
using var view = new ReadOnlyDispatchingView <int>(source, TimeSpan.Zero);
await Application.Current.Dispatcher.SimulateYield();
using var actual = view.SubscribeAll();
source.Add(1);
await Application.Current.Dispatcher.SimulateYield();
CollectionAssert.AreEqual(source, view);
CollectionAssert.AreEqual(expected, actual, EventArgsComparer.Default);
}