public void ExecuteEvictionIsStoppedIfThreadGetsInterrupted()
{
// given
var shutdown = false;
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, () => shutdown);
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(1000L, 2099L);
mockBeaconCache.BeaconIDs.Returns(new HashSet <int> {
1, 42
});
mockBeaconCache.EvictRecordsByAge(Arg.Any <int>(), Arg.Any <long>())
.Returns(x =>
{
shutdown = true;
return(2);
});
// when
target.Execute();
// then verify interactions
var tmp = mockBeaconCache.Received(1).BeaconIDs;
mockBeaconCache.Received(1).EvictRecordsByAge(Arg.Any <int>(), 2099L - configuration.MaxRecordAge);
}
public void ExecuteEvictionLogsTheNumberOfRecordsRemoved()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(1000L, 2099L);
mockBeaconCache.BeaconIDs.Returns(new HashSet <int> {
1, 42
});
mockBeaconCache.EvictRecordsByAge(1, Arg.Any <long>()).Returns(2);
mockBeaconCache.EvictRecordsByAge(42, Arg.Any <long>()).Returns(5);
mockLogger.IsDebugEnabled.Returns(true);
// when
target.Execute();
// then verify that the logger was invoked
var tmp = mockLogger.Received(2).IsDebugEnabled;
mockLogger.Received(1).Debug(target.GetType().Name + " - Removed 2 records from Beacon with ID 1");
mockLogger.Received(1).Debug(target.GetType().Name + " - Removed 5 records from Beacon with ID 42");
}
public void ExecuteEvictionDoesNotLogIfStrategyIsDisabledAndInfoIsDisabledInLogger()
{
// given
var configuration = new BeaconCacheConfiguration(0L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
mockLogger.IsInfoEnabled.Returns(false);
// when executing the first time
target.Execute();
// then
var tmp = mockLogger.Received(1).IsInfoEnabled;
mockLogger.DidNotReceiveWithAnyArgs().Info(string.Empty);
mockBeaconCache.DidNotReceiveWithAnyArgs().EvictRecordsByAge(0, 0L);
// and when executing a second time
target.Execute();
// then
tmp = mockLogger.Received(2).IsInfoEnabled;
mockLogger.DidNotReceiveWithAnyArgs().Info(string.Empty);
mockBeaconCache.DidNotReceiveWithAnyArgs().EvictRecordsByAge(0, 0L);
}
public void TheStrategyIsNotDisabledIFMaxRecordAgeIsGreaterThanZero()
{
// given
var configuration = new BeaconCacheConfiguration(1L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
// then
Assert.That(target.IsStrategyDisabled, Is.False);
}
public void TheStrategyIsDisabledIfBeaconMaxAgeIsSetToZero()
{
// given
var configuration = new BeaconCacheConfiguration(0L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
// then
Assert.That(target.IsStrategyDisabled, Is.True);
}
public void TheInitialLastRunTimestampIsMinusOne()
{
// given
var configuration = new BeaconCacheConfiguration(-1L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
// then
Assert.That(target.LastRunTimestamp, Is.EqualTo(-1L));
}
public void ShouldRunGivesFalseIfLastRunIsLessThanMaxAgeMillisecondsAgo()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc)
{
LastRunTimestamp = 1000
};
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(target.LastRunTimestamp + configuration.MaxRecordAge - 1);
// then
Assert.That(target.ShouldRun, Is.False);
}
public void ExecuteEvictionStopsIfNoBeaconIdsAreAvailableInCache()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(1000L, 2000L);
mockBeaconCache.BeaconIDs.Returns(new HashSet <int>());
// when
target.Execute();
// then verify interactions
var tmp = mockBeaconCache.Received(1).BeaconIDs;
mockTimingProvider.Received(3).ProvideTimestampInMilliseconds();
mockBeaconCache.DidNotReceiveWithAnyArgs().EvictRecordsByAge(0, 0L);
// also ensure that the last run timestamp was updated
Assert.That(target.LastRunTimestamp, Is.EqualTo(2000L));
}
public void LastRuntimeStampIsAdjustedDuringFirstExecution()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(1000L, 1001L);
// when executing the first time
target.Execute();
// then
Assert.That(target.LastRunTimestamp, Is.EqualTo(1000L));
mockTimingProvider.Received(2).ProvideTimestampInMilliseconds();
// when executing the second time
target.Execute();
// then
Assert.That(target.LastRunTimestamp, Is.EqualTo(1000L));
mockTimingProvider.Received(3).ProvideTimestampInMilliseconds();
}
public void ExecuteEvictionCallsEvictionForEachBeaconSeparately()
{
// given
var configuration = new BeaconCacheConfiguration(1000L, 1000L, 2000L);
var target = new TimeEvictionStrategy(mockLogger, mockBeaconCache, configuration, mockTimingProvider, isShutdownFunc);
mockTimingProvider.ProvideTimestampInMilliseconds().Returns(1000L, 2099L);
mockBeaconCache.BeaconIDs.Returns(new HashSet <int> {
1, 42
});
// when
target.Execute();
// then verify interactions
var tmp = mockBeaconCache.Received(1).BeaconIDs;
mockBeaconCache.Received(1).EvictRecordsByAge(1, 2099L - configuration.MaxRecordAge);
mockBeaconCache.Received(1).EvictRecordsByAge(42, 2099L - configuration.MaxRecordAge);
mockTimingProvider.Received(3).ProvideTimestampInMilliseconds();
// also ensure that the last run timestamp was updated
Assert.That(target.LastRunTimestamp, Is.EqualTo(2099L));
}