public void QuickPulseTopCpuCollectorSetsInitializationStatusCorrectlyWhenUnknownExceptionIsThrown()
{
// ARRANGE
var processProvider = new QuickPulseProcessProviderMock {
AlwaysThrow = new Exception()
};
var timeProvider = new ClockMock();
var collector = new QuickPulseTopCpuCollector(timeProvider, processProvider);
// ACT
collector.Initialize();
// ASSERT
Assert.IsTrue(collector.InitializationFailed);
Assert.IsFalse(collector.AccessDenied);
}
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 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 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);
}
