public void When_a_query_throws_a_not_supported_exception_It_does_not_retry()
{
var retryInterval = TimeSpan.FromMilliseconds(10);
var robustness = new RetryUntilTimeoutTimingStrategy();
var query = new AlwaysThrowsQuery<object, NotSupportedException>(new Options{Timeout = TimeSpan.FromMilliseconds(100), RetryInterval = retryInterval});
Assert.Throws<NotSupportedException>(() => robustness.Synchronise(query));
Assert.That(query.Tries, Is.EqualTo(1));
}
public void When_a_query_throws_a_not_supported_exception_It_does_not_retry()
{
var retryInterval = TimeSpan.FromMilliseconds(10);
var robustness = new RetryUntilTimeoutTimingStrategy();
var query = new AlwaysThrowsQuery <object, NotSupportedException>(new Options {
Timeout = TimeSpan.FromMilliseconds(100), RetryInterval = retryInterval
});
Assert.Throws <NotSupportedException>(() => robustness.Synchronise(query));
Assert.That(query.Tries, Is.EqualTo(1));
}
public void When_the_expected_result_is_found_It_returns_the_expected_result_immediately()
{
var expectedResult = new object();
var actualResult = _retryUntilTimeoutTimingStrategy.Synchronise(new AlwaysSucceedsQuery <object>(expectedResult, expectedResult, TimeSpan.FromMilliseconds(200), retryInterval));
Assert.That(actualResult, Is.EqualTo(expectedResult));
}
private void When_a_query_always_throws_an_exception_It_retries_until_the_timeout_is_reached(int timeoutMilliseconds, int intervalMilliseconds)
{
var expectedTimeout = TimeSpan.FromMilliseconds(timeoutMilliseconds);
var retryInterval = TimeSpan.FromMilliseconds(intervalMilliseconds);
var query = new AlwaysThrowsQuery<object, TestException>(new Options { Timeout = expectedTimeout, RetryInterval = retryInterval });
var retryUntilTimeoutRobustWrapper = new RetryUntilTimeoutTimingStrategy();
try
{
retryUntilTimeoutRobustWrapper.Synchronise(query);
Assert.Fail("Expecting test exception");
}
catch (TestException){}
Assert.That(query.LastCall,
Is.GreaterThan(expectedTimeout.TotalMilliseconds -
(retryInterval.Milliseconds + When_waiting.AccuracyMilliseconds)));
Assert.That(query.LastCall, Is.LessThan(
expectedTimeout.TotalMilliseconds + retryInterval.Milliseconds + When_waiting.AccuracyMilliseconds));
}
private void When_a_query_always_throws_an_exception_It_retries_until_the_timeout_is_reached(int timeoutMilliseconds, int intervalMilliseconds)
{
var expectedTimeout = TimeSpan.FromMilliseconds(timeoutMilliseconds);
var retryInterval = TimeSpan.FromMilliseconds(intervalMilliseconds);
var query = new AlwaysThrowsQuery <object, TestException>(new Options {
Timeout = expectedTimeout, RetryInterval = retryInterval
});
var retryUntilTimeoutRobustWrapper = new RetryUntilTimeoutTimingStrategy();
try
{
retryUntilTimeoutRobustWrapper.Synchronise(query);
Assert.Fail("Expecting test exception");
}
catch (TestException) {}
Assert.That(query.LastCall,
Is.GreaterThan(expectedTimeout.TotalMilliseconds -
(retryInterval.Milliseconds + When_waiting.AccuracyMilliseconds)));
Assert.That(query.LastCall, Is.LessThan(
expectedTimeout.TotalMilliseconds + retryInterval.Milliseconds + When_waiting.AccuracyMilliseconds));
}