using System;

using System.Threading.Tasks;

​

public class Program

{

    public static async Task Main()

    {

        Console.WriteLine("Started");

        // await TestAsync();

        // /*

        var task = TestAsync();

        task.Wait();

        Console.WriteLine("IsCompleted: {0}", task.IsCompleted);

        Console.WriteLine("IsCanceled: {0}", task.IsCanceled);

        Console.WriteLine("IsFaulted: {0}", task.IsFaulted);

        Console.WriteLine("Exception: {0}", task.Exception);

        //*/

        Console.WriteLine("Ended");

    }

​

    private static async Task<IDisposable> GetDisposableAsync()

    {

        return new TestDisposable();

    }

​

    private static async Task<int> DivideByZeroAsync()

    {

        var zero = 0;

        await Task.Delay(TimeSpan.FromSeconds(1));

        return 1 / zero; // Intentional failure

    }

​

    private static async Task TestAsync()

    {

        using (await GetDisposableAsync())

        {

            try

            {

                await DivideByZeroAsync();

            }

            catch (Exception e)

            {

                Console.WriteLine("Caught exception {0}", e);

                return;

            }

        }

    }

}

​

public class TestDisposable : IDisposable

{

    public TestDisposable()

    {

        Console.WriteLine("Constructed");

    }

​

    public void Dispose()

    {

        Console.WriteLine("Disposed");

    }

}