public async Task MultipleAsyncIndexOutOfOrder()
{
var FirstSource = ValueTaskCompletionSource.New <int>();
var SecondSource = ValueTaskCompletionSource.New <int>();
await using var Enumerator = new[] { FirstSource.Task, SecondSource.Task }.InterleaveIndex().GetAsyncEnumerator();
var Waiter = Enumerator.MoveNextAsync();
Assert.IsFalse(Waiter.IsCompleted);
SecondSource.TrySetResult(108);
Assert.IsTrue(await Waiter);
Assert.IsTrue(Enumerator.Current.result.IsCompleted);
Assert.AreEqual(SecondSource.Task.Result, Enumerator.Current.result.Result);
Assert.AreEqual(1, Enumerator.Current.index);
Waiter = Enumerator.MoveNextAsync();
Assert.IsFalse(Waiter.IsCompleted);
FirstSource.TrySetResult(42);
Assert.IsTrue(await Waiter);
Assert.IsTrue(Enumerator.Current.result.IsCompleted);
Assert.AreEqual(FirstSource.Task.Result, Enumerator.Current.result.Result);
Assert.AreEqual(0, Enumerator.Current.index);
Assert.IsFalse(await Enumerator.MoveNextAsync());
}
public async Task ExceptionAsync()
{
var FirstSource = ValueTaskCompletionSource.New <int>();
await using var Enumerator = new[] { FirstSource.Task }.Interleave().GetAsyncEnumerator();
var Waiter = Enumerator.MoveNextAsync();
Assert.IsFalse(Waiter.IsCompleted);
FirstSource.TrySetException(new ApplicationException("Test"));
Assert.IsTrue(await Waiter);
try
{
await Enumerator.Current;
Assert.Fail("Did not throw");
}
catch (ApplicationException)
{
}
Assert.IsFalse(await Enumerator.MoveNextAsync());
}
public async Task Complete()
{
using var TaskSource = ValueTaskCompletionSource.New();
var Task = TaskSource.Task;
Assert.IsFalse(Task.IsCompleted);
Assert.IsTrue(TaskSource.TrySetResult());
await Task;
}
public async Task CompleteResult()
{
using var TaskSource = ValueTaskCompletionSource.New <int>();
var Task = TaskSource.Task;
Assert.IsFalse(Task.IsCompleted);
Assert.IsTrue(TaskSource.TrySetResult(123));
var Result = await Task;
Assert.AreEqual(123, Result);
}
public async Task SingleAsync()
{
var FirstSource = ValueTaskCompletionSource.New <int>();
await using var Enumerator = new[] { FirstSource.Task }.Interleave().GetAsyncEnumerator();
var Waiter = Enumerator.MoveNextAsync();
Assert.IsFalse(Waiter.IsCompleted);
FirstSource.TrySetResult(42);
Assert.IsTrue(await Waiter);
Assert.IsTrue(Enumerator.Current.IsCompleted);
Assert.AreEqual(FirstSource.Task.Result, Enumerator.Current.Result);
Assert.IsFalse(await Enumerator.MoveNextAsync());
}
public async Task ExceptionResult()
{
using var TaskSource = ValueTaskCompletionSource.New <int>();
var Task = TaskSource.Task;
Assert.IsFalse(Task.IsCompleted);
Assert.IsTrue(TaskSource.TrySetException(new ApplicationException()));
try
{
var Result = await Task;
Assert.Fail("Should not reach here");
}
catch (ApplicationException)
{
}
}
public async Task CancelEnumerableWith()
{
var FirstSource = ValueTaskCompletionSource.New <int>();
var CancelSource = new CancellationTokenSource();
await using var Enumerator = new[] { FirstSource.Task }.Interleave().WithCancellation(CancelSource.Token).GetAsyncEnumerator();
var Waiter = Enumerator.MoveNextAsync();
CancelSource.Cancel();
try
{
await Waiter;
Assert.Fail("Did not cancel");
}
catch (OperationCanceledException)
{
}
}