Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.Implementation.QuickPulse.Helpers.QuickPulseQuotaTracker.ApplyQuota C# (CSharp) Method

        public bool ApplyQuota()
        {
            var currentTimeFullSeconds = (long)(this.timeProvider.UtcNow - this.startedTrackingTime).TotalSeconds;

            this.AccrueQuota(currentTimeFullSeconds);

            return this.UseQuota();
        }

        public void QuickPulseQuotaTrackerIsThreadSafe()
        {
            // ARRANGE
            int maxQuota = 100 * 60;
            int experimentLengthInSeconds = 1000;
            int concurrency = 1000;

            var mockTimeProvider = new ClockMock();
            var quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, maxQuota, 0);

            var quotaApplicationResults = new ConcurrentQueue<bool>();

            // ACT
            for (int i = 0; i < experimentLengthInSeconds; i++)
            {
                mockTimeProvider.FastForward(TimeSpan.FromSeconds(1));

                var tasks = new List<Action>();
                for (int j = 0; j < concurrency; j++)
                {
                    tasks.Add(() => quotaApplicationResults.Enqueue(quotaTracker.ApplyQuota()));
                }

                Parallel.Invoke(new ParallelOptions() { MaxDegreeOfParallelism = concurrency }, tasks.ToArray());
            }

            // ASSERT
            var passedQuotaCount = quotaApplicationResults.Count(result => result);
            var correctResult = maxQuota / 60 * experimentLengthInSeconds;

            Assert.AreEqual(correctResult, passedQuotaCount);
            Assert.IsFalse(quotaTracker.ApplyQuota());
        }