public void TestLargeDeltaBackoff()
{
int retryCount = 0;
TimeSpan totalDelay;
try
{
// Second, attempt to instantiate a retry policy from configuration with invalid settings.
RetryPolicy retryPolicy = RetryPolicyFactory.GetRetryPolicy <SqlDatabaseTransientErrorDetectionStrategy>("LargeDeltaBackoff");
GeneralRetryPolicyTests.TestRetryPolicy(retryPolicy, out retryCount, out totalDelay);
Assert.AreEqual <int>(3, retryCount, "The action was not retried using the expected amount of times");
}
catch
{
Assert.Fail("When the DeltaBackoff is very large, the retry policy should work normally.");
}
try
{
// First, instantiate a policy directly bypassing the configuration data validation.
RetryPolicy <SqlDatabaseTransientErrorDetectionStrategy> retryPolicy = new RetryPolicy <SqlDatabaseTransientErrorDetectionStrategy>(3, TimeSpan.FromMilliseconds(100), TimeSpan.FromMilliseconds(1000), TimeSpan.FromMilliseconds(100000000000000));
GeneralRetryPolicyTests.TestRetryPolicy(retryPolicy, out retryCount, out totalDelay);
Assert.AreEqual <int>(3, retryCount, "The action was not retried using the expected amount of times");
}
catch
{
Assert.Fail("When the DeltaBackoff is very large, the retry policy should work normally.");
}
}
public void TestIncrementalInterval_MissingRetryInterval()
{
int retryCount = 0;
TimeSpan totalDelay;
RetryPolicy retryPolicy = RetryPolicyFactory.GetRetryPolicy <SqlDatabaseTransientErrorDetectionStrategy>("IncrementalInterval_MissingRetryInterval");
GeneralRetryPolicyTests.TestRetryPolicy(retryPolicy, out retryCount, out totalDelay);
Assert.AreEqual <int>(3, retryCount, "The action was not retried using the expected amount of times");
}
public void TestProgressiveIncrementRetryPolicyWithRetryableError()
{
const int MaxRetryCount = 4;
TimeSpan initialInterval = TimeSpan.FromMilliseconds(500);
TimeSpan increment = TimeSpan.FromMilliseconds(500);
RetryPolicy retryPolicy =
new RetryPolicy <SqlDatabaseTransientErrorDetectionStrategy>(
new Incremental("", MaxRetryCount, initialInterval, increment, false));
int execCount = 0;
TimeSpan totalDelay;
Stopwatch stopwatch = Stopwatch.StartNew();
GeneralRetryPolicyTests.TestRetryPolicy(retryPolicy, out execCount, out totalDelay);
stopwatch.Stop();
Assert.AreEqual <int>(MaxRetryCount, execCount, "The action was not retried using the expected amount of times");
Assert.IsTrue(stopwatch.ElapsedMilliseconds >= totalDelay.TotalMilliseconds, "Unexpected duration of retry block");
}