public void When_recording_a_failure_for_a_message_it_should_not_be_treated_as_least_recently_used()
{
const int MaxElements = 50;
var storage = new FailureInfoStorage(MaxElements);
var lruMessageId = Guid.NewGuid().ToString("D");
storage.RecordFailureInfoForMessage(lruMessageId, new Exception());
var messageIds = new List <string>(MaxElements);
for (var i = 0; i < MaxElements; ++i)
{
messageIds.Add(Guid.NewGuid().ToString("D"));
}
for (var i = 0; i < MaxElements - 1; ++i)
{
storage.RecordFailureInfoForMessage(messageIds[i], new Exception());
}
storage.RecordFailureInfoForMessage(lruMessageId, new Exception());
storage.RecordFailureInfoForMessage(messageIds[MaxElements - 1], new Exception());
FailureInfoStorage.ProcessingFailureInfo failureInfo;
storage.TryGetFailureInfoForMessage(lruMessageId, out failureInfo);
Assert.IsNotNull(failureInfo);
}
public void When_recording_more_than_max_number_of_failures_should_remove_least_recently_used_entry()
{
const int MaxElements = 50;
var storage = new FailureInfoStorage(maxElements: MaxElements);
var lruMessageId = Guid.NewGuid().ToString("D");
storage.RecordFailureInfoForMessage(lruMessageId, new Exception());
for (var i = 0; i < MaxElements; ++i)
{
var messageId = Guid.NewGuid().ToString("D");
var exception = new Exception();
storage.RecordFailureInfoForMessage(messageId, exception);
}
storage.TryGetFailureInfoForMessage(lruMessageId, out var failureInfo);
Assert.IsNull(failureInfo);
}
