test(cluster): add TwoNodeClusterFixture — real two-node in-process cluster rig from production HOCON

2026-07-08 14:58:34 -04:00
parent f91e75bfe4
commit e3a6603c74
2 changed files with 138 additions and 0 deletions
@@ -0,0 +1,18 @@
+using Xunit;
+
+namespace ZB.MOM.WW.ScadaBridge.IntegrationTests.Cluster;
+
+public class TwoNodeClusterFixtureTests
+{
+    [Fact]
+    public async Task Fixture_FormsTwoNodeCluster_NodeAIsOldest()
+    {
+        await using var cluster = await TwoNodeClusterFixture.StartAsync();
+        var a = Akka.Cluster.Cluster.Get(cluster.NodeA);
+        var b = Akka.Cluster.Cluster.Get(cluster.NodeB);
+        Assert.Equal(2, a.State.Members.Count);
+        Assert.Equal(2, b.State.Members.Count);
+        // NodeA started first => oldest (the singleton host).
+        Assert.True(a.SelfMember.IsOlderThan(b.State.Members.First(m => m.Address == b.SelfAddress)));
+    }
+}