internal static ScaleVote GetAggregateScaleVote(List <ScaleVote> votes, ScaleStatusContext context, ILogger logger)
{
ScaleVote vote = ScaleVote.None;
if (votes.Any())
{
// aggregate all the votes into a single vote
if (votes.Any(p => p == ScaleVote.ScaleOut))
{
// scale out if at least 1 monitor requires it
logger.LogDebug("Scaling out based on votes");
vote = ScaleVote.ScaleOut;
}
else if (context.WorkerCount > 0 && votes.All(p => p == ScaleVote.ScaleIn))
{
// scale in only if all monitors vote scale in
logger.LogDebug("Scaling in based on votes");
vote = ScaleVote.ScaleIn;
}
}
else if (context.WorkerCount > 0)
{
// if no functions exist or are enabled we'll scale in
logger.LogDebug("No enabled functions or scale votes so scaling in");
vote = ScaleVote.ScaleIn;
}
return(vote);
}
public async Task GetScaleStatus_NoMonitors_ReturnsExpectedStatus(int workerCount, ScaleVote expected)
{
var context = new ScaleStatusContext
{
WorkerCount = workerCount
};
var status = await _scaleManager.GetScaleStatusAsync(context);
Assert.Equal(expected, status.Vote);
}
public void GetAggregateScaleVote_ReturnsExpectedResult(int workerCount, int numScaleOutVotes, int numScaleInVotes, ScaleVote expected)
{
var context = new ScaleStatusContext
{
WorkerCount = workerCount
};
List <ScaleVote> votes = new List <ScaleVote>();
for (int i = 0; i < numScaleOutVotes; i++)
{
votes.Add(ScaleVote.ScaleOut);
}
for (int i = 0; i < numScaleInVotes; i++)
{
votes.Add(ScaleVote.ScaleIn);
}
var vote = FunctionsScaleManager.GetAggregateScaleVote(votes, context, _testLogger);
Assert.Equal(expected, vote);
}
