feat: complete jetstream deep operational parity closure

2026-02-23 13:43:14 -05:00
parent 5506fc4705
commit 377ad4a299
27 changed files with 933 additions and 13 deletions
--- a/tests/NATS.Server.Tests/JetStream/JetStreamFileStoreDurabilityParityTests.cs
+++ b/tests/NATS.Server.Tests/JetStream/JetStreamFileStoreDurabilityParityTests.cs
@@ -0,0 +1,40 @@
+using NATS.Server.JetStream.Storage;
+using System.Text;
+
+namespace NATS.Server.Tests;
+
+public class JetStreamFileStoreDurabilityParityTests
+{
+    [Fact]
+    public async Task File_store_recovers_block_index_map_after_restart_without_full_log_scan()
+    {
+        var dir = Path.Combine(Path.GetTempPath(), $"nats-js-fs-durable-{Guid.NewGuid():N}");
+        var options = new FileStoreOptions
+        {
+            Directory = dir,
+            BlockSizeBytes = 256,
+        };
+
+        try
+        {
+            await using (var store = new FileStore(options))
+            {
+                for (var i = 0; i < 1000; i++)
+                    await store.AppendAsync("orders.created", Encoding.UTF8.GetBytes($"payload-{i}"), default);
+            }
+
+            File.Exists(Path.Combine(dir, options.IndexManifestFileName)).ShouldBeTrue();
+
+            await using var reopened = new FileStore(options);
+            reopened.UsedIndexManifestOnStartup.ShouldBeTrue();
+            var state = await reopened.GetStateAsync(default);
+            state.Messages.ShouldBe((ulong)1000);
+            reopened.BlockCount.ShouldBeGreaterThan(1);
+        }
+        finally
+        {
+            if (Directory.Exists(dir))
+                Directory.Delete(dir, recursive: true);
+        }
+    }
+}