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.
2026-03-12 15:58:10 -04:00
parent 36b9dfa654
commit 78b4bc2486
228 changed files with 253 additions and 227 deletions
--- a/tests/NATS.Server.JetStream.Tests/JetStream/Cluster/JetStreamLeadershipTests.cs
+++ b/tests/NATS.Server.JetStream.Tests/JetStream/Cluster/JetStreamLeadershipTests.cs
@@ -0,0 +1,97 @@
+using NATS.Server.JetStream.Cluster;
+
+namespace NATS.Server.JetStream.Tests.JetStream.Cluster;
+
+public class JetStreamLeadershipTests
+{
+    [Fact]
+    public void ProcessLeaderChange_clears_inflight_on_step_down()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        meta.TrackInflightStreamProposal("ACC", new StreamAssignment
+        {
+            StreamName = "s1",
+            Group = new RaftGroup { Name = "rg", Peers = ["n1", "n2", "n3"] },
+        });
+
+        meta.ProcessLeaderChange(isLeader: false);
+
+        meta.InflightStreamCount.ShouldBe(0);
+    }
+
+    [Fact]
+    public void ProcessLeaderChange_fires_event_on_become_leader()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        var leaderChanged = false;
+        meta.OnLeaderChange += (isLeader) => leaderChanged = true;
+
+        meta.ProcessLeaderChange(isLeader: true);
+
+        leaderChanged.ShouldBeTrue();
+    }
+
+    [Fact]
+    public void ProcessLeaderChange_fires_event_on_step_down()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        bool? receivedIsLeader = null;
+        meta.OnLeaderChange += (isLeader) => receivedIsLeader = isLeader;
+
+        meta.ProcessLeaderChange(isLeader: false);
+
+        receivedIsLeader.ShouldNotBeNull();
+        receivedIsLeader.Value.ShouldBeFalse();
+    }
+
+    [Fact]
+    public void StepDown_triggers_leader_change_event()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        bool? receivedIsLeader = null;
+        meta.OnLeaderChange += (isLeader) => receivedIsLeader = isLeader;
+
+        meta.StepDown();
+
+        receivedIsLeader.ShouldNotBeNull();
+        receivedIsLeader.Value.ShouldBeFalse();
+    }
+
+    [Fact]
+    public void StepDown_clears_inflight_via_process_leader_change()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        meta.TrackInflightStreamProposal("ACC", new StreamAssignment
+        {
+            StreamName = "s1",
+            Group = new RaftGroup { Name = "rg", Peers = ["n1", "n2", "n3"] },
+        });
+        meta.TrackInflightConsumerProposal("ACC", "s1", "c1");
+
+        meta.StepDown();
+
+        meta.InflightStreamCount.ShouldBe(0);
+        meta.InflightConsumerCount.ShouldBe(0);
+    }
+
+    [Fact]
+    public void BecomeLeader_makes_IsLeader_true()
+    {
+        var meta = new JetStreamMetaGroup(3);
+        meta.StepDown(); // move leader away from self
+        meta.IsLeader().ShouldBeFalse();
+
+        meta.BecomeLeader();
+
+        meta.IsLeader().ShouldBeTrue();
+    }
+
+    [Fact]
+    public void OnLeaderChange_not_fired_when_no_subscribers()
+    {
+        // Should not throw when no handlers attached
+        var meta = new JetStreamMetaGroup(3);
+        Should.NotThrow(() => meta.ProcessLeaderChange(isLeader: true));
+        Should.NotThrow(() => meta.ProcessLeaderChange(isLeader: false));
+    }
+}