feat(batch30): implement raft group-c run loop behaviors

2026-02-28 20:17:45 -05:00
parent ed1b62d6a3
commit 8bc4dfa58c
6 changed files with 731 additions and 6 deletions
--- a/dotnet/tests/ZB.MOM.NatsNet.Server.Tests/JetStream/RaftNodeCoreTests.cs
+++ b/dotnet/tests/ZB.MOM.NatsNet.Server.Tests/JetStream/RaftNodeCoreTests.cs
@@ -108,4 +108,98 @@ public sealed class RaftNodeCoreTests
        raft.Peers_.Count.ShouldBe(2);
        raft.RandCampaignTimeout().ShouldBeGreaterThan(TimeSpan.Zero);
    }
+
+    [Fact]
+    public void RunLoopHelpers_WhenInvoked_ShouldManageSubscriptionAndTimers()
+    {
+        var raft = new Raft
+        {
+            Id = "N1",
+            GroupName = "RG",
+            Active = DateTime.UtcNow,
+        };
+
+        var inbox = raft.NewInbox();
+        var catchupInbox = raft.NewCatchupInbox();
+        inbox.ShouldContain("_INBOX.");
+        catchupInbox.ShouldContain("_INBOX.CATCHUP.");
+
+        var sub = raft.Subscribe("raft.append");
+        raft.AeSub.ShouldNotBeNull();
+        raft.Unsubscribe(sub);
+        raft.AeSub.ShouldBeNull();
+        raft.CreateInternalSubs().ShouldBeNull();
+
+        raft.ResetElectionTimeout();
+        raft.Elect.ShouldNotBeNull();
+        raft.ResetElect(TimeSpan.FromMilliseconds(10));
+        raft.ElectTimer().ShouldBeGreaterThan(DateTime.MinValue);
+    }
+
+    [Fact]
+    public void CodecHelpers_WhenRoundTrippingEntriesAndVotes_ShouldPreserveFields()
+    {
+        var raft = new Raft
+        {
+            GroupName = "RG",
+        };
+
+        var entry = raft.NewEntry(EntryType.EntryNormal, [1, 2, 3]);
+        var proposed = raft.NewProposedEntry(entry, "reply");
+        proposed.Reply.ShouldBe("reply");
+
+        var appendEntry = raft.NewAppendEntry("L1", 2, 1, 1, 0, [entry]);
+        appendEntry.String().ShouldContain("leader=L1");
+        appendEntry.ShouldStore().ShouldBeTrue();
+        var decodedAppend = raft.DecodeAppendEntry(appendEntry.Encode());
+        decodedAppend.Leader.ShouldBe("L1");
+
+        var appendResponse = raft.NewAppendEntryResponse(2, 1, "N2", "_R_", success: true);
+        var decodedResponse = raft.DecodeAppendEntryResponse(appendResponse.Encode());
+        decodedResponse.Success.ShouldBeTrue();
+        decodedResponse.Peer.ShouldBe("N2");
+
+        var voteRequest = new VoteRequest { TermV = 4, Candidate = "N3", LastIndex = 9, LastTerm = 3, Reply = "_R_" };
+        var decodedVoteRequest = raft.DecodeVoteRequest(voteRequest.Encode());
+        decodedVoteRequest.Candidate.ShouldBe("N3");
+
+        var voteResponse = new VoteResponse { TermV = 4, Peer = "N2", Granted = true, Empty = false };
+        var decodedVoteResponse = raft.DecodeVoteResponse(voteResponse.Encode());
+        decodedVoteResponse.Granted.ShouldBeTrue();
+        decodedVoteResponse.Peer.ShouldBe("N2");
+    }
+
+    [Fact]
+    public void PeerStatePersistence_WhenWrittenAndRead_ShouldRoundTrip()
+    {
+        var raft = new Raft();
+        var storeDir = Path.Combine(Path.GetTempPath(), $"raft-peer-state-{Guid.NewGuid():N}");
+        try
+        {
+            var state = new PeerState
+            {
+                KnownPeers = ["A1", "A2"],
+                ClusterSize = 2,
+                DomainExt = 7,
+            };
+
+            raft.PeerStateBufSize(state).ShouldBeGreaterThan(0);
+            raft.WritePeerStateStatic(storeDir, state).ShouldBeNull();
+            var (readState, readError) = raft.ReadPeerState(storeDir);
+            readError.ShouldBeNull();
+            readState.ShouldNotBeNull();
+            readState!.KnownPeers.Count.ShouldBe(2);
+
+            raft.WriteTermVoteStatic(storeDir, 6, "A1").ShouldBeNull();
+            raft.Term_.ShouldBe(6UL);
+            raft.Vote.ShouldBe("A1");
+        }
+        finally
+        {
+            if (Directory.Exists(storeDir))
+            {
+                Directory.Delete(storeDir, recursive: true);
+            }
+        }
+    }
 }