public async Task Add_to_projected_set()
{
var list = new SortedSetReactiveCollectionSource<int>();
var projectedList = list.ReactiveCollection
.Select(x => x.ToString(CultureInfo.InvariantCulture));
var notificationsTask = projectedList.Changes
.Take(4)
.ToArray()
.ToTask();
list.Add(1);
list.Add(2);
list.Add(3);
var notifications = await notificationsTask;
notifications[0].Index.Should().NotHaveValue();
notifications[1].Index.Should().Be(0);
notifications[2].Index.Should().Be(1);
notifications[3].Index.Should().Be(2);
notifications[0].Action.Should().Be(NotifyCollectionChangedAction.Reset);
notifications[1].Action.Should().Be(NotifyCollectionChangedAction.Add);
notifications[2].Action.Should().Be(NotifyCollectionChangedAction.Add);
notifications[3].Action.Should().Be(NotifyCollectionChangedAction.Add);
notifications[0].NewItems.Should().BeEmpty();
notifications[1].NewItems.Should().Equal("1");
notifications[2].NewItems.Should().Equal("2");
notifications[3].NewItems.Should().Equal("3");
}
public async Task First_notification_is_reset()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationsTask = await list.ReactiveCollection.Changes
.FirstAsync()
.ToTask();
await Verify(notificationsTask);
}
public async Task First_notification_is_reset()
{
var list = new SortedSetReactiveCollectionSource<int>();
var notification = await list.ReactiveCollection.Changes.FirstAsync().ToTask();
notification.Action.Should().Be(NotifyCollectionChangedAction.Reset);
notification.OldItems.Should().BeEmpty();
notification.NewItems.Should().BeEmpty();
notification.Current.Should().BeEmpty();
}
public async Task First_notification_is_reset()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notification = await list.ReactiveCollection.Changes.FirstAsync().ToTask();
notification.Action.Should().Be(NotifyCollectionChangedAction.Reset);
notification.OldItems.Should().BeEmpty();
notification.NewItems.Should().BeEmpty();
notification.Current.Should().BeEmpty();
}
public async Task Add()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationsTask = list.ReactiveCollection.Changes
.Take(2)
.ToArray()
.ToTask();
list.Add(1);
await Verify(notificationsTask);
}
public async Task Clear_preserves_comparer()
{
var list = new SortedSetReactiveCollectionSource <StructNotImplementingIComparable>(new Comparison <StructNotImplementingIComparable>((x, y) => x.Value.CompareTo(y.Value)).ToComparer());
list.Add(new StructNotImplementingIComparable(1));
list.Clear();
list.Add(new StructNotImplementingIComparable(2));
list.Add(new StructNotImplementingIComparable(1));
var current = (await list.ReactiveCollection.Changes.FirstAsync()).Current.Select(x => x.Value).ToArray();
current.Should().Equal(1, 2);
}
public async Task Clear()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationsTask = list.ReactiveCollection.Changes
.Take(3)
.FirstAsync()
.ToTask();
list.Add(1);
list.Clear();
await Verify(notificationsTask);
}
public async Task Clear_preserves_comparer()
{
var list = new SortedSetReactiveCollectionSource <StructNotImplementingIComparable>(new Comparison <StructNotImplementingIComparable>((x, y) => x.Value.CompareTo(y.Value)).ToComparer());
var notificationsTask = list.ReactiveCollection.Changes
.Take(5)
.ToArray()
.ToTask();
list.Add(new StructNotImplementingIComparable(1));
list.Clear();
list.Add(new StructNotImplementingIComparable(2));
list.Add(new StructNotImplementingIComparable(1));
await Verify(notificationsTask);
}
public async Task Add()
{
var list = new SortedSetReactiveCollectionSource<int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(1)
.FirstAsync()
.ToTask();
list.Add(1);
var notification = await notificationTask;
notification.Action.Should().Be(NotifyCollectionChangedAction.Add);
notification.Index.Should().Be(0);
notification.NewItems.Should().Equal(1);
notification.Current.Should().Equal(1);
}
public async Task Add()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(1)
.FirstAsync()
.ToTask();
list.Add(1);
var notification = await notificationTask;
notification.Action.Should().Be(NotifyCollectionChangedAction.Add);
notification.Index.Should().Be(0);
notification.NewItems.Should().Equal(1);
notification.Current.Should().Equal(1);
}
public async Task Clear()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(2)
.FirstAsync()
.ToTask();
list.Add(1);
list.Clear();
var notification = await notificationTask;
notification.Action.Should().Be(NotifyCollectionChangedAction.Reset);
notification.NewItems.Should().BeEmpty();
notification.OldItems.Should().BeEmpty();
notification.Current.Should().BeEmpty();
}
public async Task Add_multiple()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationsTask = list.ReactiveCollection.Changes
.Take(7)
.Select(x => x.Index)
.ToArray()
.ToTask();
list.Add(1); // 0
list.Add(3); // 1
list.Add(2); // 1
list.Add(0); // 0
list.Add(6); // 4
list.Add(5); // 4
await Verify(notificationsTask);
}
public async Task Clear()
{
var list = new SortedSetReactiveCollectionSource<int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(2)
.FirstAsync()
.ToTask();
list.Add(1);
list.Clear();
var notification = await notificationTask;
notification.Action.Should().Be(NotifyCollectionChangedAction.Reset);
notification.NewItems.Should().BeEmpty();
notification.OldItems.Should().BeEmpty();
notification.Current.Should().BeEmpty();
}
public async Task Add_multiple()
{
var list = new SortedSetReactiveCollectionSource<int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(1)
.Take(6)
.Select(x => x.Index)
.ToArray()
.ToTask();
list.Add(1); // 0
list.Add(3); // 1
list.Add(2); // 1
list.Add(0); // 0
list.Add(6); // 4
list.Add(5); // 4
var notifications = await notificationTask;
notifications.Should().BeEquivalentTo(new[] { 0, 1, 1, 0, 4, 4 });
}
public async Task Add_multiple()
{
var list = new SortedSetReactiveCollectionSource <int>();
var notificationTask = list.ReactiveCollection.Changes
.Skip(1)
.Take(6)
.Select(x => x.Index)
.ToArray()
.ToTask();
list.Add(1); // 0
list.Add(3); // 1
list.Add(2); // 1
list.Add(0); // 0
list.Add(6); // 4
list.Add(5); // 4
var notifications = await notificationTask;
notifications.Should().BeEquivalentTo(new[] { 0, 1, 1, 0, 4, 4 });
}
public async Task SortedSet_ToObservableCollection_Remove()
{
var list = new SortedSetReactiveCollectionSource<int>();
var observableCollection = (INotifyCollectionChanged)list.ReactiveCollection.ToObservableCollection();
var eventsTask = Observable
.FromEventPattern<NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>(eh => observableCollection.CollectionChanged += eh, eh => observableCollection.CollectionChanged -= eh)
.Take(3)
.Select(x => x.EventArgs)
.ToArray()
.ToTask();
list.Add(1);
list.Add(2);
list.Remove(1);
var events = await eventsTask;
events[0].Action.Should().Be(NotifyCollectionChangedAction.Add);
events[1].Action.Should().Be(NotifyCollectionChangedAction.Add);
events[2].Action.Should().Be(NotifyCollectionChangedAction.Remove);
}
public void SortedSet_ToObservableCollection_Remove_multiple()
{
var list = new SortedSetReactiveCollectionSource<int>();
var observableCollection = list.ReactiveCollection.ToObservableCollection();
using (Observable
.FromEventPattern<NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>(eh => ((INotifyCollectionChanged)observableCollection).CollectionChanged += eh, eh => ((INotifyCollectionChanged)observableCollection).CollectionChanged -= eh)
.Subscribe())
{
list.AddRange(new[] { 1, 2, 3, 4, 5, 6, 7 });
list.Remove(3);
list.Remove(4);
list.Remove(5);
observableCollection.Should().Equal(1, 2, 6, 7);
}
}
public async Task Clear_preserves_comparer()
{
var list = new SortedSetReactiveCollectionSource<StructNotImplementingIComparable>(new Comparison<StructNotImplementingIComparable>((x, y) => x.Value.CompareTo(y.Value)).ToComparer());
list.Add(new StructNotImplementingIComparable(1));
list.Clear();
list.Add(new StructNotImplementingIComparable(2));
list.Add(new StructNotImplementingIComparable(1));
var current = (await list.ReactiveCollection.Changes.FirstAsync()).Current.Select(x => x.Value).ToArray();
current.Should().Equal(1, 2);
}
public async Task Remove_from_projected_set()
{
var list = new SortedSetReactiveCollectionSource<int>();
var projectedList = list.ReactiveCollection
.Select(x => x.ToString(CultureInfo.InvariantCulture));
var notificationTask = projectedList.Changes
.Skip(4)
.FirstAsync()
.ToTask();
list.Add(1);
list.Add(2);
list.Add(3);
list.Remove(2);
var notification = await notificationTask;
notification.Index.Should().Be(1);
notification.Action.Should().Be(NotifyCollectionChangedAction.Remove);
notification.NewItems.Should().BeEmpty();
notification.OldItems.Should().Equal("2");
notification.Current.Should().Equal("1", "3");
}
public async Task Remove_from_filtered_set()
{
var list = new SortedSetReactiveCollectionSource<int>();
var projectedList = list
.ReactiveCollection
.Where(x => x % 2 == 0);
var notificationTask = projectedList.Changes
.Skip(2)
.FirstAsync()
.ToTask();
list.Add(1);
list.Add(2);
list.Add(3);
list.Remove(2);
var notification = await notificationTask;
notification.Index.Should().Be(0);
notification.Action.Should().Be(NotifyCollectionChangedAction.Remove);
notification.OldItems.Should().Equal(2);
notification.NewItems.Should().BeEmpty();
notification.Current.Should().BeEmpty();
}
