public void NoErrorDelayIsSameAsSlotDelay()
{
var manager = new BackoffLogicManager(TimeSpan.Zero);
manager.ScheduleRestore(string.Empty, () => null);
Assert.Equal(TimeSpan.FromSeconds(10), manager.CurrentDelay);
}
public void AssertIfDateParseErrorCausesDefaultDelay()
{
WebHeaderCollection headers = new WebHeaderCollection();
headers.Add("Retry-After", "no one can parse me");
var manager = new BackoffLogicManager(TimeSpan.Zero);
manager.ScheduleRestore(headers, () => null);
Assert.Equal(TimeSpan.FromSeconds(10), manager.CurrentDelay);
}
public void RetryAfterFromHeadersHasMorePriorityThanExponentialRetry()
{
WebHeaderCollection headers = new WebHeaderCollection();
headers.Add("Retry-After", DateTimeOffset.UtcNow.AddSeconds(30).ToString("O"));
var manager = new BackoffLogicManager(TimeSpan.Zero);
manager.ScheduleRestore(headers, () => null);
Xunit.Assert.InRange(manager.CurrentDelay, TimeSpan.FromSeconds(20), TimeSpan.FromSeconds(30));
}
public void UpperBoundOfDelayIsMaxDelay()
{
var manager = new BackoffLogicManager(TimeSpan.Zero, TimeSpan.Zero);
PrivateObject wrapper = new PrivateObject(manager);
wrapper.SetField("consecutiveErrors", int.MaxValue);
manager.ScheduleRestore(string.Empty, () => null);
Assert.InRange(manager.CurrentDelay, TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(3600));
}
public void RetryAfterOlderThanNowCausesDefaultDelay()
{
// An old date
string retryAfterDateString = DateTime.Now.AddMinutes(-1).ToString("R", CultureInfo.InvariantCulture);
WebHeaderCollection headers = new WebHeaderCollection();
headers.Add("Retry-After", retryAfterDateString);
var manager = new BackoffLogicManager(TimeSpan.Zero);
manager.ScheduleRestore(headers, () => null);
Assert.Equal(TimeSpan.FromSeconds(10), manager.CurrentDelay);
}