public void QuickPulseQuotaTrackerShouldNotGetBursts()
{
// ARRANGE
int maxQuota = 30;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, maxQuota, 0);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1));
// ACT & ASSERT
// Emulate that every second we try to track 100 of documents. We should expect
// only one document every 2nd second (quota = 30 documents per min).
for (int i = 0; i < 1000; i++)
{
int count = 0;
for (int j = 0; j < 100; j++)
{
bool counted = quotaTracker.ApplyQuota();
if (counted)
{
++count;
}
}
Assert.AreEqual((i % 2) == 0 ? 0 : 1, count);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1));
}
}
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());
}
public void QuickPulseQuotaTrackerQuotaGetsRefilled()
{
// ARRANGE
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, 30, 0);
bool counted;
// ACT & ASSERT
Assert.AreEqual(0, quotaTracker.CurrentQuota);
Assert.IsTrue(quotaTracker.QuotaExhausted);
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // No quota yet
Assert.AreEqual(0, quotaTracker.CurrentQuota);
Assert.IsTrue(quotaTracker.QuotaExhausted);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1)); // 0.5 quota accumulated
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // No quota yet
Assert.AreEqual(0.5f, quotaTracker.CurrentQuota);
Assert.IsTrue(quotaTracker.QuotaExhausted);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1)); // 1 quota accumulated
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
Assert.AreEqual(0, quotaTracker.CurrentQuota);
Assert.IsTrue(quotaTracker.QuotaExhausted);
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // Quota was already exhausted.
Assert.AreEqual(0, quotaTracker.CurrentQuota);
Assert.IsTrue(quotaTracker.QuotaExhausted);
}
public void QuickPulseCollectionStateManagerPingRecovers()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock {
ReturnValueFromPing = false, ReturnValueFromSubmitSample = false
};
var actions = new List <string>();
var returnedSamples = new List <QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
Assert.AreEqual(timings.ServicePollingInterval, manager.UpdateState(string.Empty));
// ACT
serviceClient.ReturnValueFromPing = null;
timeProvider.FastForward(timings.TimeToServicePollingBackOff.Add(TimeSpan.FromSeconds(1)));
manager.UpdateState(string.Empty);
timeProvider.FastForward(TimeSpan.FromMinutes(1));
serviceClient.ReturnValueFromPing = false;
// ASSERT
Assert.AreEqual(timings.ServicePollingInterval, manager.UpdateState(string.Empty));
}
public void QuickPulseTopCpuCollectorReturnsNothingIfInitializationFailed()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock {
AlwaysThrow = new Exception()
};
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", TimeSpan.FromSeconds(1))
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
collector.Initialize();
collector.GetTopProcessesByCpu(5);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var result = collector.GetTopProcessesByCpu(5);
// ASSERT
Assert.IsTrue(collector.InitializationFailed);
Assert.IsFalse(result.Any());
}
public void QuickPulseCollectionStateManagerSubmitBacksOff()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock {
ReturnValueFromPing = true, ReturnValueFromSubmitSample = true
};
var actions = new List <string>();
var returnedSamples = new List <QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
manager.UpdateState(string.Empty);
// ACT & ASSERT
Assert.AreEqual(timings.CollectionInterval, manager.UpdateState("some ikey"));
serviceClient.ReturnValueFromSubmitSample = null;
timeProvider.FastForward(timings.TimeToCollectionBackOff.Add(TimeSpan.FromSeconds(-1)));
Assert.AreEqual(timings.CollectionInterval, manager.UpdateState("some ikey"));
Assert.AreEqual(true, manager.IsCollectingData);
timeProvider.FastForward(TimeSpan.FromSeconds(2));
Assert.AreEqual(timings.ServicePollingBackedOffInterval, manager.UpdateState("some ikey"));
Assert.AreEqual(false, manager.IsCollectingData);
}
public void QuickPulseTopCpuCollectorRetriesAfterIntervalWhenAccessDenied()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock();
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", TimeSpan.FromSeconds(1))
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
collector.Initialize();
collector.GetTopProcessesByCpu(5);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var resultWhenEverythingIsFine = collector.GetTopProcessesByCpu(5);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
processProvider.AlwaysThrow = new UnauthorizedAccessException();
var resultWhileAccessDenied = collector.GetTopProcessesByCpu(5);
bool flagWhileAccessDenied = collector.AccessDenied;
// 60 second retry interval
timeProvider.FastForward(TimeSpan.FromSeconds(59));
processProvider.AlwaysThrow = null;
var resultWhenEverythingIsFineAgainButNotEnoughTimePassedToRetry = collector.GetTopProcessesByCpu(5);
bool flagWhenAccessIsOkButNotEnoughTimePassed = collector.AccessDenied;
timeProvider.FastForward(TimeSpan.FromSeconds(1));
processProvider.AlwaysThrow = null;
var resultWhenRetryIntervalHasPassed = collector.GetTopProcessesByCpu(5);
bool flagWhenRetryIntervalHasPassed = collector.AccessDenied;
timeProvider.FastForward(TimeSpan.FromSeconds(1));
processProvider.AlwaysThrow = null;
var resultWhenEverythingIsBackToNormalForGood = collector.GetTopProcessesByCpu(5);
bool flagWhenEverythingIsBackToNormalForGood = collector.AccessDenied;
// ASSERT
Assert.IsTrue(resultWhenEverythingIsFine.Any());
Assert.IsFalse(resultWhileAccessDenied.Any());
Assert.IsTrue(flagWhileAccessDenied);
Assert.IsFalse(resultWhenEverythingIsFineAgainButNotEnoughTimePassedToRetry.Any());
Assert.IsTrue(flagWhenAccessIsOkButNotEnoughTimePassed);
Assert.IsTrue(resultWhenRetryIntervalHasPassed.Any());
Assert.IsFalse(flagWhenRetryIntervalHasPassed);
Assert.IsTrue(resultWhenEverythingIsBackToNormalForGood.Any());
Assert.IsFalse(flagWhenEverythingIsBackToNormalForGood);
}
public void QuickPulseServiceClientSetsTransmissionTimeCorrectly()
{
// ARRANGE
var dummy = new Dictionary <string, Tuple <PerformanceCounterData, double> >();
var dummy2 = Enumerable.Empty <Tuple <string, int> >();
var timeProvider = new ClockMock();
var serviceClient = new QuickPulseServiceClient(this.serviceEndpoint, string.Empty, string.Empty, string.Empty, string.Empty, timeProvider, false);
var sample1 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator {
StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow
},
dummy,
dummy2,
false);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var sample2 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator {
StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow
},
dummy,
dummy2,
false);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var sample3 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator {
StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow
},
dummy,
dummy2,
false);
// ACT
timeProvider.FastForward(TimeSpan.FromSeconds(5));
serviceClient.SubmitSamples(new[] { sample1, sample2, sample3 }, string.Empty);
// ASSERT
this.listener.Stop();
Assert.AreEqual(3, this.samples.Count);
Assert.IsTrue((timeProvider.UtcNow - this.samples[0].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue((timeProvider.UtcNow - this.samples[1].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue((timeProvider.UtcNow - this.samples[2].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue(this.samples.All(s => (s.Item2.Timestamp - timeProvider.UtcNow).Duration() > TimeSpan.FromSeconds(1)));
}
public void QuickPulseTopCpuCollectorReturnsTopProcessesByCpuWhenTotalTimeIsAvailable()
{
// ARRANGE
TimeSpan interval = TimeSpan.FromSeconds(2);
var processProvider = new QuickPulseProcessProviderMock();
var baseProcessorTime = TimeSpan.FromSeconds(100);
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", baseProcessorTime),
new QuickPulseProcess("Process2", baseProcessorTime),
new QuickPulseProcess("Process3", baseProcessorTime),
new QuickPulseProcess("Process4", baseProcessorTime),
new QuickPulseProcess("Process5", baseProcessorTime)
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
// doesn't matter, some large value
processProvider.OverallTimeValue = TimeSpan.FromTicks(1000 * baseProcessorTime.Ticks);
collector.GetTopProcessesByCpu(3);
timeProvider.FastForward(interval);
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", baseProcessorTime + TimeSpan.FromMilliseconds(50)),
new QuickPulseProcess("Process2", baseProcessorTime + TimeSpan.FromMilliseconds(100)),
new QuickPulseProcess("Process3", baseProcessorTime + TimeSpan.FromMilliseconds(75)),
new QuickPulseProcess("Process4", baseProcessorTime + TimeSpan.FromMilliseconds(25)),
new QuickPulseProcess("Process5", baseProcessorTime + TimeSpan.FromMilliseconds(125))
};
processProvider.OverallTimeValue += TimeSpan.FromTicks(Environment.ProcessorCount * interval.Ticks);
var topProcesses = collector.GetTopProcessesByCpu(3).ToList();
// ASSERT
Assert.AreEqual(3, topProcesses.Count);
Assert.AreEqual("Process5", topProcesses[0].Item1);
Assert.AreEqual((int)((125.0 / (Environment.ProcessorCount * interval.TotalMilliseconds)) * 100), topProcesses[0].Item2);
Assert.AreEqual("Process2", topProcesses[1].Item1);
Assert.AreEqual((int)((100.0 / (Environment.ProcessorCount * interval.TotalMilliseconds)) * 100), topProcesses[1].Item2);
Assert.AreEqual("Process3", topProcesses[2].Item1);
Assert.AreEqual((int)((75.0 / (Environment.ProcessorCount * interval.TotalMilliseconds)) * 100), topProcesses[2].Item2);
}
public void QuickPulseServiceClientSubmitsTransmissionTimeToServiceWithPing()
{
// ARRANGE
var timeProvider = new ClockMock();
var serviceClient = new QuickPulseServiceClient(this.serviceEndpoint, string.Empty, string.Empty, string.Empty, string.Empty, timeProvider, false);
// ACT
serviceClient.Ping(Guid.NewGuid().ToString(), timeProvider.UtcNow);
// ASSERT
this.listener.Stop();
Assert.AreEqual(1, this.pings.Count);
Assert.AreEqual(timeProvider.UtcNow.Ticks, this.pings[0].Item1.TransmissionTime.Ticks);
}
public void QuickPulseTopCpuCollectorHandlesExceptionFromProcessProvider()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock()
{
AlwaysThrow = new Exception()
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
var topProcesses = collector.GetTopProcessesByCpu(3);
// ASSERT
Assert.AreEqual(0, topProcesses.Count());
}
public void QuickPulseTopCpuCollectorSetsInitializationStatusCorrectlyWhenSecurityExceptionIsThrown()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock {
AlwaysThrow = new SecurityException()
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
collector.Initialize();
// ASSERT
Assert.IsTrue(collector.InitializationFailed);
Assert.IsTrue(collector.AccessDenied);
}
public void QuickPulseCollectionStateManagerDoesNothingWithoutInstrumentationKey()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock { ReturnValueFromPing = true, ReturnValueFromSubmitSample = true };
var actions = new List<string>();
var returnedSamples = new List<QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
// ACT
manager.UpdateState(string.Empty);
manager.UpdateState(null);
// ASSERT
Assert.AreEqual(0, serviceClient.PingCount);
Assert.AreEqual(0, serviceClient.SnappedSamples.Count);
}
public void QuickPulseCollectionStateManagerDoesNothingWithoutInstrumentationKey()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock {
ReturnValueFromPing = true, ReturnValueFromSubmitSample = true
};
var actions = new List <string>();
var returnedSamples = new List <QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
// ACT
manager.UpdateState(string.Empty);
manager.UpdateState(null);
// ASSERT
Assert.AreEqual(0, serviceClient.PingCount);
Assert.AreEqual(0, serviceClient.SnappedSamples.Count);
}
public void QuickPulseQuotaTrackerQuotaNotEmptyAtStart()
{
// ARRANGE
int startQuota = 10;
bool counted;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, 30, startQuota);
// ACT & ASSERT
while (startQuota > 0)
{
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
--startQuota;
}
// Quota should be exhausted.
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted);
}
public void QuickPulseCollectionStateManagerPingBacksOffWhenConnectionInitiallyDown()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock {
ReturnValueFromPing = null, ReturnValueFromSubmitSample = null
};
var actions = new List <string>();
var returnedSamples = new List <QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
// ACT & ASSERT
manager.UpdateState("some ikey");
timeProvider.FastForward(timings.TimeToServicePollingBackOff.Add(TimeSpan.FromSeconds(-1)));
Assert.AreEqual(timings.ServicePollingInterval, manager.UpdateState("some ikey"));
timeProvider.FastForward(TimeSpan.FromSeconds(2));
Assert.AreEqual(timings.ServicePollingBackedOffInterval, manager.UpdateState("some ikey"));
}
public void QuickPulseTopCpuCollectorReturnsNothingWhenCalledForTheFirstTime()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock();
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", TimeSpan.FromSeconds(50)),
new QuickPulseProcess("Process2", TimeSpan.FromSeconds(100)),
new QuickPulseProcess("Process3", TimeSpan.FromSeconds(75)),
new QuickPulseProcess("Process4", TimeSpan.FromSeconds(25)),
new QuickPulseProcess("Process5", TimeSpan.FromSeconds(125)),
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
var topProcesses = collector.GetTopProcessesByCpu(3).ToList();
// ASSERT
Assert.AreEqual(0, topProcesses.Count);
}
public void QuickPulseQuotaTrackerQuotaGetsRefilled()
{
// ARRANGE
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, 30, 0);
bool counted;
// ACT & ASSERT
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // No quota yet
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1)); // 0.5 quota accumulated
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // No quota yet
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1)); // 1 quota accumulated
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // Quota was already exhausted.
}
public void QuickPulseQuotaTrackerQuotaDoesNotExceedMax()
{
// ARRANGE
int startQuota = 10;
int maxQuota = 30;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, maxQuota, startQuota);
bool counted;
mockTimeProvider.FastForward(TimeSpan.FromDays(1));
// ACT & ASSERT
while (maxQuota > 0)
{
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
--maxQuota;
}
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // We should exhaust quota by this time
}
public void QuickPulseQuotaTrackerQuotaDoesNotExceedMax()
{
// ARRANGE
int startQuota = 10;
int maxQuota = 30;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, maxQuota, startQuota);
bool counted;
mockTimeProvider.FastForward(TimeSpan.FromDays(1));
// ACT & ASSERT
while (maxQuota > 0)
{
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
--maxQuota;
}
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted); // We should exhaust quota by this time
}
public void QuickPulseServiceClientSubmitsTransmissionTimeToServiceWithSubmitSamples()
{
// ARRANGE
var timeProvider = new ClockMock();
var serviceClient = new QuickPulseServiceClient(this.serviceEndpoint, string.Empty, string.Empty, string.Empty, string.Empty, timeProvider, false);
var sample = new QuickPulseDataSample(
new QuickPulseDataAccumulator {
StartTimestamp = timeProvider.UtcNow, EndTimestamp = timeProvider.UtcNow.AddSeconds(1)
},
new Dictionary <string, Tuple <PerformanceCounterData, double> >(),
Enumerable.Empty <Tuple <string, int> >(),
false);
// ACT
serviceClient.SubmitSamples(new[] { sample }, string.Empty);
// ASSERT
this.listener.Stop();
Assert.AreEqual(1, this.samples.Count);
Assert.AreEqual(timeProvider.UtcNow.Ticks, this.samples[0].Item1.Ticks);
}
public void QuickPulseTopCpuCollectorCleansUpStateWhenProcessesGoAway()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock();
var baseProcessorTime = TimeSpan.FromSeconds(100);
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", baseProcessorTime),
new QuickPulseProcess("Process2", baseProcessorTime),
new QuickPulseProcess("Process3", baseProcessorTime),
new QuickPulseProcess("Process4", baseProcessorTime),
new QuickPulseProcess("Process5", baseProcessorTime),
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
var processDictionary =
QuickPulseTestHelper.GetPrivateField(collector, "processObservations") as Dictionary <string, TimeSpan>;
// ACT
collector.GetTopProcessesByCpu(3);
int itemCount1 = processDictionary.Count;
timeProvider.FastForward(TimeSpan.FromSeconds(1));
processProvider.Processes = new List <QuickPulseProcess>()
{
new QuickPulseProcess("Process1", baseProcessorTime)
};
collector.GetTopProcessesByCpu(3);
int itemCount3 = processDictionary.Count;
// ASSERT
Assert.AreEqual(5, itemCount1);
Assert.AreEqual(1, itemCount3);
}
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());
}
public void QuickPulseTelemetryProcessorDoesNotCollectFullExceptionTelemetryItemsOnceQuotaIsExhausted()
{
// ARRANGE
var accumulatorManager = new QuickPulseDataAccumulatorManager();
var timeProvider = new ClockMock();
var telemetryProcessor = new QuickPulseTelemetryProcessor(new SimpleTelemetryProcessorSpy(), timeProvider, 60, 5);
var instrumentationKey = "some ikey";
((IQuickPulseTelemetryProcessor)telemetryProcessor).StartCollection(
accumulatorManager,
new Uri("http://microsoft.com"),
new TelemetryConfiguration() { InstrumentationKey = instrumentationKey });
// ACT
int counter = 0;
for (int i = 0; i < 100; i++)
{
var exception = new ExceptionTelemetry(new Exception((counter++).ToString(CultureInfo.InvariantCulture)))
{
Context = { InstrumentationKey = instrumentationKey }
};
telemetryProcessor.Process(exception);
}
timeProvider.FastForward(TimeSpan.FromSeconds(30));
for (int i = 0; i < 100; i++)
{
var exception = new ExceptionTelemetry(new Exception((counter++).ToString(CultureInfo.InvariantCulture)))
{
Context = { InstrumentationKey = instrumentationKey }
};
telemetryProcessor.Process(exception);
}
// ASSERT
var collectedTelemetry = accumulatorManager.CurrentDataAccumulator.TelemetryDocuments.ToArray().Reverse().Cast<ExceptionTelemetryDocument>().ToArray();
Assert.AreEqual(5 + 30, accumulatorManager.CurrentDataAccumulator.TelemetryDocuments.Count);
// out of the first 100 items we expect to see items 0 through 4 (the initial quota)
for (int i = 0; i < 5; i++)
{
Assert.AreEqual(i, int.Parse(collectedTelemetry[i].ExceptionMessage, CultureInfo.InvariantCulture));
}
// out of the second 100 items we expect to see items 100 through 129 (the new quota for 30 seconds)
for (int i = 5; i < 35; i++)
{
Assert.AreEqual(95 + i, int.Parse(collectedTelemetry[i].ExceptionMessage, CultureInfo.InvariantCulture));
}
}
public void QuickPulseQuotaTrackerQuotaNotEmptyAtStart()
{
// ARRANGE
int startQuota = 10;
bool counted;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, 30, startQuota);
// ACT & ASSERT
while (startQuota > 0)
{
counted = quotaTracker.ApplyQuota();
Assert.IsTrue(counted);
--startQuota;
}
// Quota should be exhausted.
counted = quotaTracker.ApplyQuota();
Assert.IsFalse(counted);
}
public void CollectionConfigurationCarriesOverQuotaWhenCreatingDocumentStreams()
{
// ARRANGE
var timeProvider = new ClockMock();
CollectionConfigurationError[] errors;
var oldDocumentStreamInfos = new[]
{
new DocumentStreamInfo()
{
Id = "Stream1",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Request,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream2",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Dependency,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream3",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Exception,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
}
};
var newDocumentStreamInfos = new[]
{
new DocumentStreamInfo()
{
Id = "Stream1",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Request,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream2",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Dependency,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream3",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Exception,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream4",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Event,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
},
new DocumentStreamInfo()
{
Id = "Stream5",
DocumentFilterGroups =
new[]
{
new DocumentFilterConjunctionGroupInfo()
{
TelemetryType = TelemetryType.Trace,
Filters = new FilterConjunctionGroupInfo()
{
Filters = new FilterInfo[0]
}
}
}
}
};
var oldCollectionConfigurationInfo = new CollectionConfigurationInfo()
{
DocumentStreams = oldDocumentStreamInfos, ETag = "ETag1"
};
var oldCollectionConfiguration = new CollectionConfiguration(oldCollectionConfigurationInfo, out errors, timeProvider);
// spend some quota on the old configuration
var accumulatorManager = new QuickPulseDataAccumulatorManager(oldCollectionConfiguration);
var telemetryProcessor = new QuickPulseTelemetryProcessor(new SimpleTelemetryProcessorSpy());
((IQuickPulseTelemetryProcessor)telemetryProcessor).StartCollection(
accumulatorManager,
new Uri("http://microsoft.com"),
new TelemetryConfiguration()
{
InstrumentationKey = "some ikey"
});
// ACT
// the initial quota is 3
telemetryProcessor.Process(new RequestTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
telemetryProcessor.Process(new DependencyTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
telemetryProcessor.Process(new DependencyTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
telemetryProcessor.Process(new ExceptionTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
telemetryProcessor.Process(new ExceptionTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
telemetryProcessor.Process(new ExceptionTelemetry()
{
Context = { InstrumentationKey = "some ikey" }
});
// ACT
// the new configuration must carry the quotas over from the old one (only for those document streams that already existed)
var newCollectionConfigurationInfo = new CollectionConfigurationInfo()
{
DocumentStreams = newDocumentStreamInfos, ETag = "ETag1"
};
var newCollectionConfiguration = new CollectionConfiguration(
newCollectionConfigurationInfo,
out errors,
timeProvider,
oldCollectionConfiguration.DocumentStreams);
// ASSERT
DocumentStream[] documentStreams = newCollectionConfiguration.DocumentStreams.ToArray();
Assert.AreEqual(5, documentStreams.Length);
Assert.AreEqual("Stream1", documentStreams[0].Id);
Assert.AreEqual(2, documentStreams[0].RequestQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[0].DependencyQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[0].ExceptionQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[0].EventQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[0].EventQuotaTracker.CurrentQuota);
Assert.AreEqual("Stream2", documentStreams[1].Id);
Assert.AreEqual(3, documentStreams[1].RequestQuotaTracker.CurrentQuota);
Assert.AreEqual(1, documentStreams[1].DependencyQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[1].ExceptionQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[1].EventQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[1].EventQuotaTracker.CurrentQuota);
Assert.AreEqual("Stream3", documentStreams[2].Id);
Assert.AreEqual(3, documentStreams[2].RequestQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[2].DependencyQuotaTracker.CurrentQuota);
Assert.AreEqual(0, documentStreams[2].ExceptionQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[2].EventQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[2].EventQuotaTracker.CurrentQuota);
Assert.AreEqual("Stream4", documentStreams[3].Id);
Assert.AreEqual(3, documentStreams[3].RequestQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[3].DependencyQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[3].ExceptionQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[3].EventQuotaTracker.CurrentQuota);
Assert.AreEqual(3, documentStreams[3].EventQuotaTracker.CurrentQuota);
}
public void QuickPulseTelemetryProcessorDoesNotCollectFullRequestTelemetryItemsOnceQuotaIsExhausted()
{
// ARRANGE
var accumulatorManager = new QuickPulseDataAccumulatorManager();
var timeProvider = new ClockMock();
var telemetryProcessor = new QuickPulseTelemetryProcessor(new SimpleTelemetryProcessorSpy(), timeProvider, 60, 5);
var instrumentationKey = "some ikey";
((IQuickPulseTelemetryProcessor)telemetryProcessor).StartCollection(
accumulatorManager,
new Uri("http://microsoft.com"),
new TelemetryConfiguration() { InstrumentationKey = instrumentationKey });
// ACT
int counter = 0;
for (int i = 0; i < 100; i++)
{
var request = new RequestTelemetry()
{
Success = false,
ResponseCode = "400",
Duration = TimeSpan.FromSeconds(counter++),
Context = { InstrumentationKey = instrumentationKey }
};
telemetryProcessor.Process(request);
}
timeProvider.FastForward(TimeSpan.FromSeconds(30));
for (int i = 0; i < 100; i++)
{
var request = new RequestTelemetry()
{
Success = false,
ResponseCode = "400",
Duration = TimeSpan.FromSeconds(counter++),
Context = { InstrumentationKey = instrumentationKey }
};
telemetryProcessor.Process(request);
}
// ASSERT
var collectedTelemetry = accumulatorManager.CurrentDataAccumulator.TelemetryDocuments.ToArray().Reverse().Cast<RequestTelemetryDocument>().ToArray();
Assert.AreEqual(5 + 30, accumulatorManager.CurrentDataAccumulator.TelemetryDocuments.Count);
// out of the first 100 items we expect to see items 0 through 4 (the initial quota)
for (int i = 0; i < 5; i++)
{
Assert.AreEqual(i, collectedTelemetry[i].Duration.TotalSeconds);
}
// out of the second 100 items we expect to see items 100 through 129 (the new quota for 30 seconds)
for (int i = 5; i < 35; i++)
{
Assert.AreEqual(95 + i, collectedTelemetry[i].Duration.TotalSeconds);
}
}
public void QuickPulseServiceClientSetsTransmissionTimeCorrectly()
{
// ARRANGE
var dummy = new Dictionary<string, Tuple<PerformanceCounterData, float>>();
var timeProvider = new ClockMock();
var serviceClient = new QuickPulseServiceClient(this.serviceEndpoint, string.Empty, string.Empty, timeProvider);
var sample1 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator { StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow },
dummy);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var sample2 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator { StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow },
dummy);
timeProvider.FastForward(TimeSpan.FromSeconds(1));
var sample3 =
new QuickPulseDataSample(
new QuickPulseDataAccumulator { StartTimestamp = timeProvider.UtcNow.AddSeconds(-1), EndTimestamp = timeProvider.UtcNow },
dummy);
// ACT
timeProvider.FastForward(TimeSpan.FromSeconds(5));
serviceClient.SubmitSamples(new[] { sample1, sample2, sample3 }, string.Empty);
// ASSERT
this.listener.Stop();
Assert.AreEqual(3, this.samples.Count);
Assert.IsTrue((timeProvider.UtcNow - this.samples[0].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue((timeProvider.UtcNow - this.samples[1].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue((timeProvider.UtcNow - this.samples[2].Item1).Duration() < TimeSpan.FromMilliseconds(1));
Assert.IsTrue(this.samples.All(s => (s.Item2.Timestamp - timeProvider.UtcNow).Duration() > TimeSpan.FromSeconds(1)));
}
public void QuickPulseQuotaTrackerShouldNotGetBursts()
{
// ARRANGE
int maxQuota = 30;
var mockTimeProvider = new ClockMock();
QuickPulseQuotaTracker quotaTracker = new QuickPulseQuotaTracker(mockTimeProvider, maxQuota, 0);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1));
// ACT & ASSERT
// Emulate that every second we try to track 100 of documents. We should expect
// only one document every 2nd second (quota = 30 documents per min).
for (int i = 0; i < 1000; i++)
{
int count = 0;
for (int j = 0; j < 100; j++)
{
bool counted = quotaTracker.ApplyQuota();
if (counted)
{
++count;
}
}
Assert.AreEqual((i % 2) == 0 ? 0 : 1, count);
mockTimeProvider.FastForward(TimeSpan.FromSeconds(1));
}
}
public void QuickPulseCollectionStateManagerSubmitBacksOffWhenConnectionInitiallyDown()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock { ReturnValueFromPing = true, ReturnValueFromSubmitSample = null };
var actions = new List<string>();
var returnedSamples = new List<QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
// ACT & ASSERT
Assert.AreEqual(timings.CollectionInterval, manager.UpdateState("some ikey"));
Assert.IsTrue(manager.IsCollectingData);
timeProvider.FastForward(timings.TimeToCollectionBackOff.Add(TimeSpan.FromSeconds(-1)));
Assert.AreEqual(timings.CollectionInterval, manager.UpdateState("some ikey"));
Assert.IsTrue(manager.IsCollectingData);
timeProvider.FastForward(TimeSpan.FromSeconds(2));
Assert.AreEqual(timings.ServicePollingBackedOffInterval, manager.UpdateState("some ikey"));
Assert.AreEqual(false, manager.IsCollectingData);
}
public void QuickPulseCollectionStateManagerPingRecovers()
{
// ARRANGE
var timings = QuickPulseTimings.Default;
var serviceClient = new QuickPulseServiceClientMock { ReturnValueFromPing = false, ReturnValueFromSubmitSample = false };
var actions = new List<string>();
var returnedSamples = new List<QuickPulseDataSample>();
var timeProvider = new ClockMock();
var manager = CreateManager(serviceClient, timeProvider, actions, returnedSamples, timings);
Assert.AreEqual(timings.ServicePollingInterval, manager.UpdateState(string.Empty));
// ACT
serviceClient.ReturnValueFromPing = null;
timeProvider.FastForward(timings.TimeToServicePollingBackOff.Add(TimeSpan.FromSeconds(1)));
manager.UpdateState(string.Empty);
timeProvider.FastForward(TimeSpan.FromMinutes(1));
serviceClient.ReturnValueFromPing = false;
// ASSERT
Assert.AreEqual(timings.ServicePollingInterval, manager.UpdateState(string.Empty));
}
