public void Write_RemoveElementAtIndex_ElementRemoved()
{
var col = new ConcurrentObservableCollection <string>(new[] { "a", "b", "c" });
col.RemoveAt(1);
CollectionAssert.AreEqual(new[] { "a", "c" }, col);
}
public async Task WriteInConcurrentObservableCollectionUIThread()
{
using (var collection = new ConcurrentObservableCollection <int>())
{
_collectionChangedCount = 0;
collection.CollectionChanged += Collection_CollectionChanged;
await TaskHelper.RunOnUIThreadAsync(() =>
{
for (int i = 1; i < 10000; i++)
{
for (int j = 1; j < 10; j++)
{
collection.Add(i *j);
}
collection.RemoveAt(collection.Count - 1);
collection.Remove(i);
collection.Move(0, 6);
collection.Insert(0, i *i);
}
}).ConfigureAwait(false);
Assert.AreEqual(79992, collection.Count);
Assert.AreEqual(129987, _collectionChangedCount);
}
}
public void Write_RemoveElementAtIndex_ElementRemoved()
{
var col = new ConcurrentObservableCollection <string>(new[] { "a", "b", "c" });
col.RemoveAt(1);
col.Should().BeEquivalentTo("a", "c");
}
public void Write_ComplexOperation_CollectionUpdatedProperly()
{
var col = new ConcurrentObservableCollection <string>(new[] { "a", "b", "c" });
col.Add("d");
col.Remove("b");
col.Insert(0, "x");
col.AddRange(new[] { "z", "f", "y" });
col.RemoveAt(4);
col.RemoveRange(new[] { "y", "c" });
col[2] = "p";
CollectionAssert.AreEquivalent(new[] { "x", "a", "p", "f" }, col);
}
public void Init()
{
UIEvents.CollectionChanged += (sender, args) =>
{
for (int i = 0; i < UIEvents.Count; i++)
{
if (UIEvents[i].IsCompleted())
{
UIEvents.RemoveAt(i);
}
else
{
UIEvents[i].PerformAction();
}
}
return;
};
}
