AsyncEx.Tests.AsyncParallelTests.PrecancelledTest C# (CSharp) Method

        public async Task PrecancelledTest()
        {
            var source = new[] { true };

            var cts = new CancellationTokenSource();
            cts.Cancel();

            await AsyncParallel.ForEach(
                source, new ParallelOptions { CancellationToken = cts.Token }, async b => Assert.Fail());
        }