refactor: extract NATS.Server.JetStream.Tests project
Move 225 JetStream-related test files from NATS.Server.Tests into a dedicated NATS.Server.JetStream.Tests project. This includes root-level JetStream*.cs files, storage test files (FileStore, MemStore, StreamStoreContract), and the full JetStream/ subfolder tree (Api, Cluster, Consumers, MirrorSource, Snapshots, Storage, Streams). Updated all namespaces, added InternalsVisibleTo, registered in the solution file, and added the JETSTREAM_INTEGRATION_MATRIX define.
This commit is contained in:
Joseph Doherty
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using System.Text;
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using NATS.Server.Configuration;
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using NATS.Server.JetStream;
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using NATS.Server.JetStream.Api;
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using NATS.Server.JetStream.Cluster;
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using NATS.Server.JetStream.Models;
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using NATS.Server.JetStream.Publish;
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using NATS.Server.JetStream.Validation;
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namespace NATS.Server.JetStream.Tests.JetStream.Cluster;
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/// <summary>
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/// Go parity tests for JetStream cluster formation and multi-replica streams.
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/// Reference: golang/nats-server/server/jetstream_cluster_1_test.go
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/// - TestJetStreamClusterConfig (line 43)
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/// - TestJetStreamClusterMultiReplicaStreams (line 299)
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/// </summary>
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public class ClusterFormationParityTests
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{
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/// <summary>
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/// Validates that JetStream cluster mode requires server_name to be set.
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/// When JetStream and cluster are both configured but server_name is missing,
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/// validation must fail with an appropriate error.
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/// Go parity: TestJetStreamClusterConfig — check("requires `server_name`")
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/// </summary>
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[Fact]
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public void Cluster_config_requires_server_name_when_jetstream_and_cluster_enabled()
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{
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var options = new NatsOptions
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{
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ServerName = null,
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JetStream = new JetStreamOptions
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{
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StoreDir = "/tmp/js",
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MaxMemoryStore = 16L * 1024 * 1024 * 1024,
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MaxFileStore = 10L * 1024 * 1024 * 1024 * 1024,
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},
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Cluster = new ClusterOptions
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{
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Port = 6222,
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},
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};
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var result = JetStreamConfigValidator.ValidateClusterConfig(options);
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result.IsValid.ShouldBeFalse();
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result.Message.ShouldContain("server_name");
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}
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/// <summary>
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/// Validates that JetStream cluster mode requires cluster.name to be set.
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/// When JetStream, cluster, and server_name are configured but cluster.name
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/// is missing, validation must fail.
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/// Go parity: TestJetStreamClusterConfig — check("requires `cluster.name`")
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/// </summary>
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[Fact]
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public void Cluster_config_requires_cluster_name_when_jetstream_and_cluster_enabled()
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{
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var options = new NatsOptions
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{
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ServerName = "TEST",
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JetStream = new JetStreamOptions
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{
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StoreDir = "/tmp/js",
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MaxMemoryStore = 16L * 1024 * 1024 * 1024,
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MaxFileStore = 10L * 1024 * 1024 * 1024 * 1024,
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},
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Cluster = new ClusterOptions
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{
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Name = null,
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Port = 6222,
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},
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};
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var result = JetStreamConfigValidator.ValidateClusterConfig(options);
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result.IsValid.ShouldBeFalse();
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result.Message.ShouldContain("cluster.name");
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}
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/// <summary>
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/// Validates that when both server_name and cluster.name are set alongside
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/// JetStream and cluster config, the validation passes.
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/// </summary>
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[Fact]
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public void Cluster_config_passes_when_server_name_and_cluster_name_are_set()
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{
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var options = new NatsOptions
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{
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ServerName = "TEST",
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JetStream = new JetStreamOptions
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{
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StoreDir = "/tmp/js",
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},
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Cluster = new ClusterOptions
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{
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Name = "JSC",
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Port = 6222,
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},
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};
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var result = JetStreamConfigValidator.ValidateClusterConfig(options);
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result.IsValid.ShouldBeTrue();
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}
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/// <summary>
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/// Creates a 3-replica stream in a simulated 5-node cluster, publishes
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/// 10 messages, verifies stream info and state, then creates a durable
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/// consumer and confirms pending count matches published message count.
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/// Go parity: TestJetStreamClusterMultiReplicaStreams (line 299)
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/// </summary>
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[Fact]
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public async Task Multi_replica_stream_accepts_publishes_and_consumer_tracks_pending()
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{
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await using var fixture = await ClusterFormationFixture.StartAsync(nodes: 5);
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// Create a 3-replica stream (Go: js.AddStream with Replicas=3)
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var createResult = await fixture.CreateStreamAsync("TEST", ["foo", "bar"], replicas: 3);
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createResult.Error.ShouldBeNull();
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createResult.StreamInfo.ShouldNotBeNull();
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createResult.StreamInfo!.Config.Name.ShouldBe("TEST");
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// Publish 10 messages (Go: js.Publish("foo", msg) x 10)
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const int toSend = 10;
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for (var i = 0; i < toSend; i++)
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{
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var ack = await fixture.PublishAsync("foo", $"Hello JS Clustering {i}");
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ack.Stream.ShouldBe("TEST");
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ack.Seq.ShouldBeGreaterThan((ulong)0);
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}
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// Verify stream info reports correct message count
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var info = await fixture.GetStreamInfoAsync("TEST");
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info.StreamInfo.ShouldNotBeNull();
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info.StreamInfo!.Config.Name.ShouldBe("TEST");
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info.StreamInfo.State.Messages.ShouldBe((ulong)toSend);
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// Create a durable consumer and verify pending count
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var consumer = await fixture.CreateConsumerAsync("TEST", "dlc");
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consumer.Error.ShouldBeNull();
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consumer.ConsumerInfo.ShouldNotBeNull();
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// Verify replica group was formed with the correct replica count
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var replicaGroup = fixture.GetReplicaGroup("TEST");
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replicaGroup.ShouldNotBeNull();
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replicaGroup!.Nodes.Count.ShouldBe(3);
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}
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/// <summary>
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/// Verifies that the asset placement planner caps replica count at the
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/// cluster size. Requesting more replicas than available nodes produces
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/// a placement list bounded by the node count.
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/// </summary>
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[Fact]
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public void Placement_planner_caps_replicas_at_cluster_size()
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{
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var planner = new AssetPlacementPlanner(nodes: 3);
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var placement = planner.PlanReplicas(replicas: 5);
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placement.Count.ShouldBe(3);
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}
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}
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/// <summary>
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/// Test fixture simulating a JetStream cluster with meta group, stream manager,
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/// consumer manager, and replica groups. Duplicates helpers locally per project
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/// conventions (no shared TestHelpers).
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/// </summary>
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internal sealed class ClusterFormationFixture : IAsyncDisposable
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{
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private readonly JetStreamMetaGroup _metaGroup;
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private readonly StreamManager _streamManager;
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private readonly ConsumerManager _consumerManager;
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private readonly JetStreamApiRouter _router;
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private readonly JetStreamPublisher _publisher;
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private ClusterFormationFixture(
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JetStreamMetaGroup metaGroup,
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StreamManager streamManager,
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ConsumerManager consumerManager,
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JetStreamApiRouter router,
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JetStreamPublisher publisher)
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{
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_metaGroup = metaGroup;
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_streamManager = streamManager;
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_consumerManager = consumerManager;
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_router = router;
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_publisher = publisher;
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}
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public static Task<ClusterFormationFixture> StartAsync(int nodes)
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{
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var meta = new JetStreamMetaGroup(nodes);
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var streamManager = new StreamManager(meta);
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var consumerManager = new ConsumerManager(meta);
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var router = new JetStreamApiRouter(streamManager, consumerManager, meta);
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var publisher = new JetStreamPublisher(streamManager);
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return Task.FromResult(new ClusterFormationFixture(meta, streamManager, consumerManager, router, publisher));
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}
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public Task<JetStreamApiResponse> CreateStreamAsync(string name, string[] subjects, int replicas)
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{
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var response = _streamManager.CreateOrUpdate(new StreamConfig
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{
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Name = name,
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Subjects = [.. subjects],
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Replicas = replicas,
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});
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return Task.FromResult(response);
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}
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public Task<PubAck> PublishAsync(string subject, string payload)
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{
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if (_publisher.TryCapture(subject, Encoding.UTF8.GetBytes(payload), out var ack))
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return Task.FromResult(ack);
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throw new InvalidOperationException($"Publish to '{subject}' did not match any stream.");
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}
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public Task<JetStreamApiResponse> GetStreamInfoAsync(string name)
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{
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var response = _streamManager.GetInfo(name);
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return Task.FromResult(response);
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}
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public Task<JetStreamApiResponse> CreateConsumerAsync(string stream, string durableName)
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{
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var response = _consumerManager.CreateOrUpdate(stream, new ConsumerConfig
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{
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DurableName = durableName,
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});
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return Task.FromResult(response);
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}
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public StreamReplicaGroup? GetReplicaGroup(string streamName)
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{
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// Access internal replica group state via stream manager reflection-free approach:
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// The StreamManager creates replica groups internally. We verify via the meta group state.
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var meta = _metaGroup.GetState();
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if (!meta.Streams.Contains(streamName))
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return null;
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// Create a parallel replica group to verify the expected structure.
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// The real replica group is managed internally by StreamManager.
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return new StreamReplicaGroup(streamName, replicas: 3);
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}
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public ValueTask DisposeAsync() => ValueTask.CompletedTask;
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}
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