public void WithNewExpiration()
{
var retryBackoff = new BackoffSettings(TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(3));
var timeoutBackoff = new BackoffSettings(TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(3));
var original = new RetrySettings(retryBackoff, timeoutBackoff, Expiration.FromTimeout(TimeSpan.FromSeconds(5)),
e => false, RetrySettings.NoJitter);
var newExpiration = Expiration.FromDeadline(DateTime.UtcNow);
var newSettings = original.WithTotalExpiration(newExpiration);
Assert.Same(original.RetryBackoff, newSettings.RetryBackoff);
Assert.Same(original.TimeoutBackoff, newSettings.TimeoutBackoff);
Assert.Same(original.RetryFilter, newSettings.RetryFilter);
Assert.Same(original.DelayJitter, newSettings.DelayJitter);
Assert.Same(newExpiration, newSettings.TotalExpiration);
}