public void ExponentialBackoffDoesNotUnderflow()
{
var exponentialBackoff = new ExponentialBackoffRetryStrategy(
MAX_RETRY_ATTEMPTS,
RetryStrategy.DefaultMinBackoff,
RetryStrategy.DefaultMaxBackoff,
RetryStrategy.DefaultClientBackoff);
ShouldRetry shouldRetry = exponentialBackoff.GetShouldRetry();
for (int i = 1; i < MAX_RETRY_ATTEMPTS; i++)
{
shouldRetry(i, new Exception(), out TimeSpan delay);
if (delay.TotalSeconds <= 0)
{
Assert.Fail("Exponential backoff should never recommend a negative delay");
}
}
}
/// <summary>
/// Returns true if, based on the parameters, the operation should be retried.
/// </summary>
/// <param name="currentRetryCount">How many times the operation has been retried.</param>
/// <param name="lastException">Operation exception.</param>
/// <param name="retryInterval">Next retry should be performed after this time interval.</param>
/// <returns>True if the operation should be retried, false otherwise.</returns>
public bool ShouldRetry(int currentRetryCount, Exception lastException, out TimeSpan retryInterval)
{
return(_exponentialBackoffRetryStrategy.GetShouldRetry()(currentRetryCount, lastException, out retryInterval));
}