d6fac2d81d
Builds TwoNodeClusterHarness: two in-process Host-equivalent nodes sharing
an in-memory ConfigDb. Forms a 2-member Akka cluster. ClusterFormationTests
proves both nodes see each other as admin+driver role members.
Fixes a real production bug uncovered while wiring the harness — Program.cs
ran two separate ActorSystems (one from AddOtOpcUaCluster.AkkaHostedService
with cluster HOCON, one from Akka.Hosting.AddAkka with bare HOCON). Cluster
singletons landed on the bare ActorSystem and could not actually form a
cluster ("Configuration does not contain `akka.cluster` node").
Consolidation:
- AddOtOpcUaCluster now only binds AkkaClusterOptions + registers IClusterRoleInfo
- New WithOtOpcUaClusterBootstrap pushes embedded HOCON + Remote/Cluster options
into Akka.Hosting's AkkaConfigurationBuilder
- AkkaHostedService.cs deleted — Akka.Hosting now owns the lifecycle
- Program.cs + harness call WithOtOpcUaClusterBootstrap inside AddAkka
Why not WebApplicationFactory<Program>? Program.cs reads OTOPCUA_ROLES from
process env (shared across in-process WAFs); the harness replays Program.cs's
DI graph from a clean WebApplicationBuilder per node with per-node config
overrides. Same production extensions, isolated config + Kestrel + Akka ports.
Tests: 93 v2 tests pass (was 91 + 2 new cluster formation), 0 skipped.
44 lines
1.5 KiB
C#
44 lines
1.5 KiB
C#
using Akka.Cluster;
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using Shouldly;
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using Xunit;
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namespace ZB.MOM.WW.OtOpcUa.Host.IntegrationTests;
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/// <summary>
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/// Smoke test: verifies <see cref="TwoNodeClusterHarness"/> boots two nodes and they form
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/// a 2-member cluster with the expected role topology. Failover + deploy scenarios layer
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/// on top in Task 59.
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/// </summary>
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public sealed class ClusterFormationTests
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{
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[Fact]
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public async Task Two_nodes_form_a_2_member_cluster()
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{
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await using var harness = await TwoNodeClusterHarness.StartAsync();
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var aCluster = Akka.Cluster.Cluster.Get(harness.NodeASystem);
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var bCluster = Akka.Cluster.Cluster.Get(harness.NodeBSystem);
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aCluster.State.Members.Count(m => m.Status == MemberStatus.Up).ShouldBe(2);
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bCluster.State.Members.Count(m => m.Status == MemberStatus.Up).ShouldBe(2);
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var aRoles = aCluster.State.Members.SelectMany(m => m.Roles).Distinct().ToHashSet();
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aRoles.ShouldContain("admin");
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aRoles.ShouldContain("driver");
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}
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[Fact]
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public async Task Both_nodes_see_each_other_as_role_members()
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{
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await using var harness = await TwoNodeClusterHarness.StartAsync();
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var aCluster = Akka.Cluster.Cluster.Get(harness.NodeASystem);
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aCluster.State.Members
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.Where(m => m.Roles.Contains("driver") && m.Status == MemberStatus.Up)
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.Count().ShouldBe(2);
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aCluster.State.Members
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.Where(m => m.Roles.Contains("admin") && m.Status == MemberStatus.Up)
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.Count().ShouldBe(2);
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}
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}
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