public void Pause_ServiceIsRunning_StatusIsChangedToPaused()
{
// Arrange
int durationInMilliseconds = SystemInformationMessageQueueFeeder.SendIntervalInMilliseconds * 3;
var systemInformationProvider = new Mock<ISystemInformationProvider>();
var workQueue = new Mock<IMessageQueue<SystemInformation>>();
using (var messageQueueFeeder = new SystemInformationMessageQueueFeeder(systemInformationProvider.Object, workQueue.Object))
{
var messageQueueFeederTask = new Task(messageQueueFeeder.Start);
messageQueueFeederTask.Start();
Thread.Sleep(durationInMilliseconds);
// Act
messageQueueFeeder.Pause();
var statusAfterPause = messageQueueFeeder.GetStatus();
// Assert
Assert.AreEqual(ServiceStatus.Paused, statusAfterPause);
}
}
public void Resume_ServiceIsPaused_StatusIsChangedToRunning()
{
// Arrange
var systemInformationProvider = new Mock<ISystemInformationProvider>();
var workQueue = new Mock<IMessageQueue<SystemInformation>>();
using (var messageQueueFeeder = new SystemInformationMessageQueueFeeder(systemInformationProvider.Object, workQueue.Object))
{
var messageQueueFeederTask = new Task(messageQueueFeeder.Start);
messageQueueFeederTask.Start();
Thread.Sleep(500);
messageQueueFeeder.Pause();
// Act
Thread.Sleep(500);
messageQueueFeeder.Resume();
// Assert
Assert.AreEqual(ServiceStatus.Running, messageQueueFeeder.GetStatus());
}
}
public void Pause_RunFor3Intervals_Pause_SystemInfoIsPulledAtMostTwoTimes()
{
// Arrange
int durationInMilliseconds = SystemInformationMessageQueueFeeder.SendIntervalInMilliseconds * 3;
var systemInformationProvider = new Mock<ISystemInformationProvider>();
var workQueue = new Mock<IMessageQueue<SystemInformation>>();
using (var messageQueueFeeder = new SystemInformationMessageQueueFeeder(systemInformationProvider.Object, workQueue.Object))
{
// Act
var messageQueueFeederTask = new Task(messageQueueFeeder.Start);
messageQueueFeederTask.Start();
Thread.Sleep(durationInMilliseconds);
messageQueueFeeder.Pause();
Thread.Sleep(durationInMilliseconds);
// Assert
systemInformationProvider.Verify(s => s.GetSystemInfo(), Times.AtMost(3));
}
}