public async Task NotifierAsync()
{
var context = new AsyncSynchronizationContext();
var people = new ObservableCollection <TestPerson>(TestPerson.MakePeople());
using (var query = people.SwitchContext(context))
{
Assert.AreEqual(14, query.Count);
people.Add(new TestPerson("Daniel"));
await Task.Delay(250);
Assert.AreEqual(15, query.Count);
people[14] = new TestPerson("Javon");
await Task.Delay(250);
Assert.AreEqual("Javon", query[14].Name);
people.Move(14, 0);
await Task.Delay(250);
Assert.AreEqual("Javon", query[0].Name);
people.RemoveAt(0);
await Task.Delay(250);
Assert.AreEqual(14, query.Count);
people.Clear();
await Task.Delay(250);
Assert.AreEqual(0, query.Count);
}
}
public async Task SourceManipulationSorted()
{
var context1 = new AsyncSynchronizationContext();
var context2 = new AsyncSynchronizationContext();
ISynchronizedObservableRangeDictionary <int, TestPerson> people = new SynchronizedObservableSortedDictionary <int, TestPerson>(context1);
foreach (var kv in TestPerson.MakePeople().Select((person, index) => new KeyValuePair <int, TestPerson>(index, person)))
{
people.Add(kv);
}
using var query = people.SwitchContext(context2);
Assert.AreEqual(14, query.Count);
people.Add(14, new TestPerson("Daniel"));
await Task.Delay(250);
Assert.AreEqual(15, query.Count);
people[14] = new TestPerson("Javon");
await Task.Delay(250);
Assert.AreEqual("Javon", query[14].Name);
people[0] = people[14];
await Task.Delay(250);
Assert.AreEqual("Javon", query[0].Name);
people.Remove(0);
await Task.Delay(250);
Assert.AreEqual(14, query.Count);
people.Reset(new Dictionary <int, TestPerson> {
{ 0, new TestPerson("Sarah") }
});
await Task.Delay(250);
Assert.AreEqual(1, query.Count);
}