Joseph Doherty
58 lines
1.8 KiB
C#
58 lines
1.8 KiB
C#
using System.Net;
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using System.Net.Sockets;
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using Akka.Actor;
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using Akka.Configuration;
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using Xunit;
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using ZB.MOM.WW.ScadaBridge.Communication.ClusterState;
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namespace ZB.MOM.WW.ScadaBridge.Communication.Tests;
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public class ActiveNodeEvaluatorTests : IAsyncLifetime
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{
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private ActorSystem? _system;
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public async Task InitializeAsync()
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{
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var port = FreePort();
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var config = ConfigurationFactory.ParseString($@"
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akka {{
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actor.provider = cluster
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remote.dot-netty.tcp {{ hostname = ""127.0.0.1"", port = {port} }}
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cluster {{
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seed-nodes = [""akka.tcp://ane-test@127.0.0.1:{port}""]
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roles = [""site-x""]
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min-nr-of-members = 1
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}}
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}}");
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_system = ActorSystem.Create("ane-test", config);
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var cluster = Akka.Cluster.Cluster.Get(_system);
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var deadline = DateTime.UtcNow.AddSeconds(20);
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while (cluster.SelfMember.Status != Akka.Cluster.MemberStatus.Up && DateTime.UtcNow < deadline)
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await Task.Delay(100);
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}
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public async Task DisposeAsync() { if (_system != null) await _system.Terminate(); }
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[Fact]
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public void SelfIsOldestUp_SoleUpMember_ReturnsTrue()
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{
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var cluster = Akka.Cluster.Cluster.Get(_system!);
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Assert.True(ActiveNodeEvaluator.SelfIsOldestUp(cluster));
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Assert.True(ActiveNodeEvaluator.SelfIsOldestUp(cluster, "site-x"));
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}
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[Fact]
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public void SelfIsOldestUp_RoleNotHeld_ReturnsFalse()
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{
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var cluster = Akka.Cluster.Cluster.Get(_system!);
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Assert.False(ActiveNodeEvaluator.SelfIsOldestUp(cluster, "role-nonexistent"));
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}
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private static int FreePort()
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{
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using var l = new TcpListener(IPAddress.Loopback, 0);
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l.Start();
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return ((IPEndPoint)l.LocalEndpoint).Port;
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}
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}
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