public async Task Abort_WhileEnumerating_EnumerationAborted()
{
var completed = false;
var stream = new MessageStreamEnumerable <int>();
using var enumerator = stream.GetEnumerator();
// ReSharper disable once AccessToDisposedClosure
var enumerationTask = Task.Run(
() =>
{
enumerator.MoveNext();
completed = true;
});
completed.Should().BeFalse();
stream.Abort();
// Give the other thread a chance to exit the MoveNext
await AsyncTestingUtil.WaitAsync(() => enumerationTask.IsCompleted);
completed.Should().BeFalse();
enumerationTask.Status.Should().Be(TaskStatus.Faulted);
enumerationTask.Exception !.InnerExceptions.First().Should().BeAssignableTo <OperationCanceledException>();
}
public async Task Abort_WhilePushing_PushAborted()
{
var pushed = false;
var stream = new MessageStreamEnumerable <int>();
var pushTask = Task.Run(
async() =>
{
await stream.PushAsync(new PushedMessage(1, 1));
pushed = true;
});
pushed.Should().BeFalse();
stream.Abort();
// Give the other thread a chance to exit the MoveNext
await AsyncTestingUtil.WaitAsync(() => pushTask.IsCompleted);
pushed.Should().BeFalse();
pushTask.Status.Should().Be(TaskStatus.Canceled);
}
public async Task Abort_WhileAsyncEnumerating_EnumerationAborted()
{
var completed = false;
var stream = new MessageStreamEnumerable <int>();
var enumerator = stream.GetAsyncEnumerator();
var enumerationTask = Task.Run(
async() =>
{
await enumerator.MoveNextAsync();
completed = true;
});
completed.Should().BeFalse();
stream.Abort();
// Give the other thread a chance to exit the MoveNext
await AsyncTestingUtil.WaitAsync(() => enumerationTask.IsCompleted);
completed.Should().BeFalse();
enumerationTask.Status.Should().Be(TaskStatus.Canceled);
}