public void UseFifo()
{
// Arrange
var queue = new LogEventQueue(null);
queue.Enqueue("1");
queue.Enqueue("2");
queue.Enqueue("3");
// Act
var dequeueResult1 = queue.TryDequeue(long.MaxValue, out var got1);
var dequeueResult2 = queue.TryDequeue(long.MaxValue, out var got2);
var dequeueResult3 = queue.TryDequeue(long.MaxValue, out var got3);
var dequeueResult4 = queue.TryDequeue(long.MaxValue, out var got4);
// Assert
dequeueResult1.ShouldBe(LogEventQueue.DequeueResult.Ok);
dequeueResult2.ShouldBe(LogEventQueue.DequeueResult.Ok);
dequeueResult3.ShouldBe(LogEventQueue.DequeueResult.Ok);
dequeueResult4.ShouldBe(LogEventQueue.DequeueResult.QueueEmpty);
got1.ShouldBe("1");
got2.ShouldBe("2");
got3.ShouldBe("3");
got4.ShouldBe("");
}
public void NotEnqueueGivenFullQueue()
{
// Arrange
var queue = new LogEventQueue(3);
queue.Enqueue("1");
queue.Enqueue("2");
queue.Enqueue("3");
// Act
var got = queue.TryEnqueue("4");
// Assert
got.ShouldBe(LogEventQueue.EnqueueResult.QueueFull);
}
public void ThrowExceptionGivenFullQueue()
{
// Arrange
var queue = new LogEventQueue(3);
queue.Enqueue("1");
queue.Enqueue("2");
queue.Enqueue("3");
// Act
Action got = () => queue.Enqueue("4");
// Assert
got.ShouldThrow <Exception>();
}
public void ReadLogEvents()
{
// Arrange
var queue = new LogEventQueue();
queue.Enqueue(FooLogEvent);
queue.Enqueue(BarLogEvent);
// Act
var got = LogEventQueueReader.Read(queue, null, null);
// Assert
got.LogEvents.ShouldBe(new[] { FooLogEvent, BarLogEvent });
got.HasReachedLimit.ShouldBeFalse();
}
public void RespectBatchSizeLimit()
{
// Arrange
var queue = new LogEventQueue();
queue.Enqueue(FooLogEvent);
queue.Enqueue(BarLogEvent);
var batchSizeLimit = (FooLogEvent.Length + BarLogEvent.Length) * 2 / 3;
// Act
var got = LogEventQueueReader.Read(queue, null, batchSizeLimit);
// Assert
got.LogEvents.ShouldBe(new[] { FooLogEvent });
got.HasReachedLimit.ShouldBeTrue();
}
public void RespectlogEventsInBatchLimit()
{
// Arrange
var queue = new LogEventQueue();
queue.Enqueue(FooLogEvent);
queue.Enqueue(BarLogEvent);
const int logEventsInBatchLimit = 1;
// Act
var got = LogEventQueueReader.Read(queue, logEventsInBatchLimit, null);
// Assert
got.LogEvents.ShouldBe(new[] { FooLogEvent });
got.HasReachedLimit.ShouldBeTrue();
}
public void SkipLogEventGivenItExceedsBatchSizeLimit()
{
// Arrange
const string logEventExceedingBatchSizeLimit = "{ \"foo\": \"This document exceeds the batch size limit\" }";
var queue = new LogEventQueue(null);
queue.Enqueue(logEventExceedingBatchSizeLimit);
queue.Enqueue(BarLogEvent);
var batchSizeLimit = ByteSize.From(logEventExceedingBatchSizeLimit) - 1;
// Act
var got = LogEventQueueReader.Read(queue, int.MaxValue, batchSizeLimit);
// Assert
got.LogEvents.ShouldBe(new[] { BarLogEvent });
got.HasReachedLimit.ShouldBeFalse();
}
public void DequeueGivenMaxSize(string logEvent, int maxSize, LogEventQueue.DequeueResult want)
{
// Arrange
var queue = new LogEventQueue(null);
queue.Enqueue(logEvent);
// Act
var got = queue.TryDequeue(maxSize, out var dequeuedLogEvent);
// Assert
got.ShouldBe(want);
dequeuedLogEvent.ShouldBe(want == LogEventQueue.DequeueResult.Ok ? logEvent : "");
}
public void Dequeue()
{
// Arrange
var queue = new LogEventQueue(null);
queue.Enqueue("1");
// Act
var result = queue.TryDequeue(long.MaxValue, out var got);
// Assert
result.ShouldBe(LogEventQueue.DequeueResult.Ok);
got.ShouldBe("1");
}
public void ReadLogEvent()
{
// Arrange
var queue = new LogEventQueue(null);
queue.Enqueue(FooLogEvent);
// Act
var got = LogEventQueueReader.Read(queue, int.MaxValue, long.MaxValue);
// Assert
got.LogEvents.ShouldBe(
new[]
{
FooLogEvent
});
got.HasReachedLimit.ShouldBeFalse();
}