public void TriggeringEvictionStrategiesInThread()
{
var resetEvent = new AutoResetEvent(false); // non-signaled, all threads will block
mockBeaconCache.When(c => c.RecordAdded += Arg.Any <EventHandler>()).Do(x => resetEvent.Set());
// also do reset event when executing mock strategy
mockStrategyTwo.When(s => s.Execute()).Do(x => resetEvent.Set());
// first step start the eviction thread
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache, mockStrategyOne, mockStrategyTwo);
evictor.Start();
resetEvent.WaitOne(); // wait until the evictor thread subscribed
for (int i = 0; i < 10; i++)
{
mockBeaconCache.RecordAdded += Raise.Event();
resetEvent.WaitOne();
}
// stop the thread
var stopped = evictor.Stop();
// verify stop worked
Assert.That(stopped, Is.True);
Assert.That(evictor.IsAlive, Is.False);
// ensure that the mocks were called accordingly
mockStrategyOne.Received(10).Execute();
mockStrategyTwo.Received(10).Execute();
}
public void ADefaultConstructedBeaconCacheEvictorIsNotAlive()
{
// given
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache);
// then
Assert.That(evictor.IsAlive, Is.False);
}
public void AfterStartingABeaconCacheEvictorItIsAlive()
{
// given
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache);
// when
var obtained = evictor.Start();
// then
Assert.That(obtained, Is.True);
Assert.That(evictor.IsAlive, Is.True);
}
public void StoppingABeaconCacheEvictorWhichIsNotAliveDoesNothing()
{
// given
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache);
// when
var obtained = evictor.Stop();
// then
Assert.That(obtained, Is.False);
Assert.That(evictor.IsAlive, Is.False);
}
public void StartingAnAlreadyAliveBeaconCacheEvictorDoesNothing()
{
// given
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache);
evictor.Start();
// when trying to start the evictor again
var obtained = evictor.Start();
// then
Assert.That(obtained, Is.False);
Assert.That(evictor.IsAlive, Is.True);
}
public void StoppingAnAliveBeaconCacheEvictor()
{
// given
evictor = new BeaconCacheEvictor(mockLogger, mockBeaconCache);
evictor.Start();
// when
var obtained = evictor.Stop();
// then
Assert.That(obtained, Is.True);
Assert.That(evictor.IsAlive, Is.False);
}
public void SetUp()
{
mockLogger = Substitute.For <ILogger>();
mockLogger.IsDebugEnabled.Returns(true);
mockLogger.IsInfoEnabled.Returns(true);
mockLogger.IsWarnEnabled.Returns(true);
mockLogger.IsErrorEnabled.Returns(true);
mockBeaconCache = Substitute.For <IBeaconCache>();
mockStrategyOne = Substitute.For <IBeaconCacheEvictionStrategy>();
mockStrategyTwo = Substitute.For <IBeaconCacheEvictionStrategy>();
evictor = null;
}