public void FilterRemoveOneThenAdd()
{
using (var actual = this.View.SubscribeAll())
{
this.View.Filter = x => x < 3;
this.Scheduler?.Start();
CollectionAssert.AreEqual(new[] { 1, 2 }, this.View);
var expected = new List <EventArgs>();
expected.Add(CachedEventArgs.CountPropertyChanged);
expected.Add(CachedEventArgs.IndexerPropertyChanged);
expected.Add(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, 3, 2));
Assert.AreEqual(1, actual.Count(x => EventArgsComparer.Equals(x, FilterChangedEventArgs)));
CollectionAssert.AreEqual(expected, actual.Where(x => !EventArgsComparer.Equals(x, FilterChangedEventArgs)), EventArgsComparer.Default);
this.View.Filter = x => true;
this.Scheduler?.Start();
CollectionAssert.AreEqual(new[] { 1, 2, 3 }, this.View);
expected.Add(CachedEventArgs.CountPropertyChanged);
expected.Add(CachedEventArgs.IndexerPropertyChanged);
expected.Add(Diff.CreateAddEventArgs(3, 2));
Assert.AreEqual(2, actual.Count(x => EventArgsComparer.Equals(x, FilterChangedEventArgs)));
CollectionAssert.AreEqual(expected, actual.Where(x => !EventArgsComparer.Equals(x, FilterChangedEventArgs)), EventArgsComparer.Default);
}
}
public void FilterRemoveOne()
{
using var actual = this.View.SubscribeAll();
this.View.Filter = x => x < 3;
this.Scheduler?.Start();
CollectionAssert.AreEqual(new[] { 1, 2 }, this.View);
var expected = new List <EventArgs>
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
Diff.CreateRemoveEventArgs(3, 2),
};
Assert.AreEqual(1, actual.Count(x => EventArgsComparer.Equals(x, FilterChangedEventArgs)));
CollectionAssert.AreEqual(expected, actual.Where(x => !EventArgsComparer.Equals(x, FilterChangedEventArgs)), EventArgsComparer.Default);
}
public void FilterReset()
{
using var actual = this.View.SubscribeAll();
this.View.Filter = x => x < 0;
this.Scheduler?.Start();
CollectionAssert.IsEmpty(this.View);
var expected = new List <EventArgs>();
expected.AddRange(
new EventArgs[]
{
CachedEventArgs.CountPropertyChanged,
CachedEventArgs.IndexerPropertyChanged,
CachedEventArgs.NotifyCollectionReset,
});
Assert.AreEqual(1, actual.Count(x => EventArgsComparer.Equals(x, FilterChangedEventArgs)));
CollectionAssert.AreEqual(expected, actual.Where(x => !EventArgsComparer.Equals(x, FilterChangedEventArgs)), EventArgsComparer.Default);
}