/// <summary>
/// Initializes a new instance of the <see cref="DurableCommitDispatcher"/> class.
/// </summary>
/// <param name="eventStoreClient">An event store client.</param>
/// <param name="checkpointRepository">A checkpoint repository. Each instane of a <see cref="DurableCommitDispatcher"/>
/// should have their own instance of a <see cref="ICheckpointRepository"/>.</param>
/// <param name="dispatchCommit">A handler to dispatch the commit to.</param>
/// <param name="retryPolicy">A retry policy when a <see cref="TransientException"/> occurs.
/// If none specified TransientException.None is used.</param>
/// <exception cref="System.ArgumentNullException">
/// eventStoreClient
/// or
/// checkpointRepository
/// or
/// dispatchCommit
/// </exception>
public DurableCommitDispatcher(
[NotNull] IEventStoreClient eventStoreClient,
[NotNull] ICheckpointRepository checkpointRepository,
[NotNull] Func <ICommit, CancellationToken, Task> dispatchCommit,
TransientExceptionRetryPolicy retryPolicy = null)
{
Guard.EnsureNotNull(eventStoreClient, "eventStoreClient");
Guard.EnsureNotNull(checkpointRepository, "checkpointRepository");
Guard.EnsureNotNull(dispatchCommit, "dispatchCommit");
_eventStoreClient = eventStoreClient;
_checkpointRepository = checkpointRepository;
_dispatchCommit = dispatchCommit;
_retryPolicy = retryPolicy ?? TransientExceptionRetryPolicy.None();
}
public async Task Transient_policy_none_should_not_retry()
{
var sut = TransientExceptionRetryPolicy.None();
int count = 0;
Func <Task> act = () => sut.Retry(() =>
{
count++;
if (count == 1)
{
throw new TransientException();
}
return(Task.FromResult(0));
}, CancellationToken.None);
act.ShouldThrow <TransientException>();
count.Should().Be(1);
}