void RetryExponentialServerBusyShouldSelfResetTest()
{
var retryExponential = (RetryExponential)RetryPolicy.Default;
var retryCount = 0;
var duration = Constants.DefaultOperationTimeout;
var exception = new ServerBusyException(string.Empty);
// First ServerBusy exception
Assert.False(retryExponential.IsServerBusy, "policy1.IsServerBusy should start with false");
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it returned false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
System.Threading.Thread.Sleep(3000);
// Setting it a second time should not prolong the call.
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it return false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
System.Threading.Thread.Sleep(8000); // 3 + 8 = 11s
Assert.False(retryExponential.IsServerBusy, "policy1.IsServerBusy should stay false after 11s");
// Setting ServerBusy for second time.
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it return false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy is not true");
}
public async Task RetryExponentialServerBusyShouldSelfResetTest()
{
var retryExponential = (RetryExponential)RetryPolicy.Default;
var retryCount = 0;
var attempts = 0;
var duration = Constants.DefaultOperationTimeout;
var exception = new ServerBusyException(string.Empty);
// First ServerBusy exception
Assert.False(retryExponential.IsServerBusy, "policy1.IsServerBusy should start with false");
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it returned false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
await Task.Delay(3000);
// Setting it a second time should not prolong the call.
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it return false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy should be true");
// The server busy flag should reset; the basereset time is 10 seconds (see RetryPolicy, line 19).
// Since there was already a 3 second delay, allow for the additional time needed to reset (with some padding).
// This check is timing sensitive and has shown to behave differently in different build environments. Allow for some timing
// variation and extend the window for rest, if needed.
await Task.Delay(9000);
while (retryExponential.IsServerBusy && Interlocked.Increment(ref attempts) <= TestConstants.MaxAttemptsCount)
{
await Task.Delay(2000);
}
// If the busy flag hasn't reset by now, consider it a failure.
Assert.False(retryExponential.IsServerBusy, "policy1.IsServerBusy should reset to false after 11s");
// Setting ServerBusy for second time.
Assert.True(retryExponential.ShouldRetry(duration, retryCount, exception, out _), "We should retry, but it return false");
Assert.True(retryExponential.IsServerBusy, "policy1.IsServerBusy is not true");
}
