public virtual async Task CanRunWorkItemWithMetrics() { int completedCount = 0; //Log.MinimumLevel = LogLevel.Trace; //Log.SetLogLevel<ScheduledTimer>(LogLevel.Information); //Log.SetLogLevel<InMemoryCacheClient>(LogLevel.Information); using (var metricsClient = new InMemoryMetricsClient(false, loggerFactory: Log)) { var behavior = new MetricsQueueBehavior<WorkItemData>(metricsClient, "metric", loggerFactory: Log, reportCountsInterval: TimeSpan.Zero); using (var queue = new InMemoryQueue<WorkItemData>(behaviors: new[] { behavior }, loggerFactory: Log)) { Func<object, CompletedEventArgs<WorkItemData>, Task> handler = (sender, e) => { completedCount++; return Task.CompletedTask; }; using (queue.Completed.AddHandler(handler)) { _logger.Trace("Before enqueue"); await queue.EnqueueAsync(new SimpleWorkItem { Id = 1, Data = "Testing" }); await queue.EnqueueAsync(new SimpleWorkItem { Id = 2, Data = "Testing" }); await queue.EnqueueAsync(new SimpleWorkItem { Id = 3, Data = "Testing" }); await SystemClock.SleepAsync(100); _logger.Trace("Before dequeue"); var item = await queue.DequeueAsync(); await item.CompleteAsync(); item = await queue.DequeueAsync(); await item.CompleteAsync(); item = await queue.DequeueAsync(); await item.AbandonAsync(); _logger.Trace("Before asserts"); Assert.Equal(2, completedCount); await SystemClock.SleepAsync(100); Assert.InRange((await metricsClient.GetGaugeStatsAsync("metric.workitemdata.count")).Max, 1, 3); Assert.InRange((await metricsClient.GetGaugeStatsAsync("metric.workitemdata.working")).Max, 0, 1); Assert.Equal(3, await metricsClient.GetCounterCountAsync("metric.workitemdata.simple.enqueued")); Assert.Equal(3, await metricsClient.GetCounterCountAsync("metric.workitemdata.enqueued")); Assert.Equal(3, await metricsClient.GetCounterCountAsync("metric.workitemdata.simple.dequeued")); Assert.Equal(3, await metricsClient.GetCounterCountAsync("metric.workitemdata.dequeued")); Assert.Equal(2, await metricsClient.GetCounterCountAsync("metric.workitemdata.simple.completed")); Assert.Equal(2, await metricsClient.GetCounterCountAsync("metric.workitemdata.completed")); Assert.Equal(1, await metricsClient.GetCounterCountAsync("metric.workitemdata.simple.abandoned")); Assert.Equal(1, await metricsClient.GetCounterCountAsync("metric.workitemdata.abandoned")); var queueTiming = await metricsClient.GetTimerStatsAsync("metric.workitemdata.simple.queuetime"); Assert.Equal(3, queueTiming.Count); queueTiming = await metricsClient.GetTimerStatsAsync("metric.workitemdata.queuetime"); Assert.Equal(3, queueTiming.Count); var processTiming = await metricsClient.GetTimerStatsAsync("metric.workitemdata.simple.processtime"); Assert.Equal(3, processTiming.Count); processTiming = await metricsClient.GetTimerStatsAsync("metric.workitemdata.processtime"); Assert.Equal(3, processTiming.Count); var queueStats = await metricsClient.GetQueueStatsAsync("metric.workitemdata"); Assert.Equal(3, queueStats.Enqueued.Count); Assert.Equal(3, queueStats.Dequeued.Count); Assert.Equal(2, queueStats.Completed.Count); Assert.Equal(1, queueStats.Abandoned.Count); Assert.InRange(queueStats.Count.Max, 1, 3); Assert.InRange(queueStats.Working.Max, 0, 1); var subQueueStats = await metricsClient.GetQueueStatsAsync("metric.workitemdata", "simple"); Assert.Equal(3, subQueueStats.Enqueued.Count); Assert.Equal(3, subQueueStats.Dequeued.Count); Assert.Equal(2, subQueueStats.Completed.Count); Assert.Equal(1, subQueueStats.Abandoned.Count); } } } }