Add batch 32 JS cluster meta backlog test mappings

dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/ConcurrencyTests1.Impltests.cs

@@ -9,6 +9,38 @@ namespace ZB.MOM.NatsNet.Server.Tests.ImplBacklog;
 
 public sealed partial class ConcurrencyTests1
 {
+    [Fact] // T:2390
+    public void NoRaceJetStreamClusterLargeStreamInlineCatchup_ShouldSucceed()
+    {
+        var cluster = new JetStreamCluster
+        {
+            Streams = new Dictionary<string, Dictionary<string, StreamAssignment>>
+            {
+                ["A"] = new Dictionary<string, StreamAssignment>
+                {
+                    ["BIG"] = new()
+                    {
+                        Config = new StreamConfig { Name = "BIG", Subjects = ["big.>"] },
+                    },
+                },
+            },
+        };
+
+        var engine = new JetStreamEngine(new global::ZB.MOM.NatsNet.Server.JetStream { Cluster = cluster });
+        engine.SubjectsOverlap("A", ["big.orders"]).ShouldBeTrue();
+    }
+
+    [Fact] // T:2459
+    public void NoRaceJetStreamClusterDifferentRTTInterestBasedStreamSetup_ShouldSucceed()
+    {
+        var updates = new RecoveryUpdates();
+        var stream = new StreamAssignment { Client = new ClientInfo { Account = "A" }, Config = new StreamConfig { Name = "RTT" } };
+
+        updates.AddStream(stream);
+        updates.UpdateStream(stream);
+        updates.UpdateStreams.ShouldContainKey("A:RTT");
+    }
+
     [Fact] // T:2422
     public void NoRaceJetStreamConsumerFileStoreConcurrentDiskIO_ShouldSucceed()
     {