private void TestRebalance(
IShardAllocationStrategy allocationStrategy,
int maxRegions,
int maxShardsPerRegion,
int expectedMaxSteps)
{
foreach (var i in Enumerable.Range(1, iterationsPerTest))
{
iteration += 1;
var numberOfRegions = rnd.Next(maxRegions) + 1;
var memberArray = Enumerable.Range(1, numberOfRegions).Select(n => LeastShardAllocationStrategySpec.NewUpMember("127.0.0.1", port: n)).ToArray();
clusterMembers = ImmutableSortedSet.Create(memberArray);//.toIndexedSeq: _ *);
var regions = Enumerable.Range(1, numberOfRegions).Select(n => LeastShardAllocationStrategySpec.NewFakeRegion($"{iteration}-R{n}", memberArray[n - 1]));
//var regions = Enumerable.Range(1, numberOfRegions).Select(n => Sys.ActorOf(Props.Empty, $"{iteration}-R{n}")).ToImmutableList();
var countPerRegion = regions.ToImmutableDictionary(region => region, region => rnd.Next(maxShardsPerRegion));
var allocations = CreateAllocations(countPerRegion);
TestRebalance(allocationStrategy, allocations, ImmutableList.Create(allocations), expectedMaxSteps);
foreach (var region in regions)
{
Sys.Stop(region);
}
}
}
internal static IActorRef NewFakeRegion(string idForDebug, Member member) => LeastShardAllocationStrategySpec.NewFakeRegion(idForDebug, member);