protected override async Task OnProcessAsync(CancellationToken cancellationToken = default)
{
Console.WriteLine("Retry 1");
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
var retry = new LinearRetryPolicy(3, TimeSpan.FromMilliseconds(200), TimeSpan.FromMilliseconds(100));
await retry.ProcessAsync(() =>
{
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
throw new ApplicationException();
}, typeof(ApplicationException));
Console.WriteLine("Retry 2");
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
try
{
await retry.ProcessAsync(() =>
{
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
throw new InvalidOperationException();
}, typeof(ApplicationException));
}
catch (InvalidOperationException)
{
}
var h = new ExceptionHandler();
h.Add <ApplicationException>(ex =>
{
return(null);
});
h.Add <ArgumentException>(ex =>
{
if (ex.Message == "name")
{
return(null);
}
return(new ApplicationException());
});
Console.WriteLine("Retry 3");
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
await retry.ProcessAsync(() =>
{
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
throw new ApplicationException();
}, h.GetException);
Console.WriteLine("Retry 4");
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
await retry.ProcessAsync(() =>
{
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
throw new ArgumentException("name");
}, h.GetException);
Console.WriteLine("Retry 5");
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
try
{
await retry.ProcessAsync(() =>
{
Console.WriteLine(DateTime.Now.ToString("HH:mm:ss.fff"));
throw new ArgumentException("other");
}, h.GetException);
}
catch (ApplicationException)
{
}
}
public async Task TestLinearAsync()
{
var count = 0;
var now = DateTime.Now;
var retry = new LinearRetryPolicy(3, TimeSpan.FromMilliseconds(20), TimeSpan.FromMilliseconds(10));
await retry.ProcessAsync(() =>
{
count++;
throw new ApplicationException();
}, typeof(ApplicationException));
Assert.AreEqual(4, count);
Assert.IsTrue(DateTime.Now - now >= TimeSpan.FromMilliseconds(90));
var isSucc = false;
try
{
await retry.ProcessAsync(() =>
{
count++;
throw new InvalidOperationException();
}, typeof(ApplicationException));
}
catch (InvalidOperationException)
{
isSucc = true;
}
Assert.IsTrue(isSucc);
Assert.AreEqual(5, count);
var h = new ExceptionHandler();
h.Add <ApplicationException>(ex =>
{
return(null);
});
h.Add <ArgumentException>(ex =>
{
if (ex.Message == "name")
{
return(null);
}
return(new ApplicationException());
});
await retry.ProcessAsync(() =>
{
count++;
throw new ApplicationException();
}, h.GetException);
await retry.ProcessAsync(() =>
{
count++;
throw new ArgumentException("name");
}, h.GetException);
Assert.AreEqual(13, count);
isSucc = false;
try
{
await retry.ProcessAsync(() =>
{
count++;
throw new ArgumentException("other");
}, h.GetException);
}
catch (ApplicationException)
{
isSucc = true;
}
Assert.AreEqual(14, count);
Assert.IsTrue(isSucc);
}