diff --git a/SVSim.UnitTests/BattleNode/Integration/BattleNodeFlowTests.cs b/SVSim.UnitTests/BattleNode/Integration/BattleNodeFlowTests.cs
index 46100f8..5192f9c 100644
--- a/SVSim.UnitTests/BattleNode/Integration/BattleNodeFlowTests.cs
+++ b/SVSim.UnitTests/BattleNode/Integration/BattleNodeFlowTests.cs
@@ -16,10 +16,11 @@ namespace SVSim.UnitTests.BattleNode.Integration;
 public class BattleNodeFlowTests
 {
     /// <summary>
-    /// End-to-end smoke for the v1 scripted lifecycle. Boots the EmulatedEntrypoint via
+    /// End-to-end smoke for the v1.1 scripted lifecycle. Boots the EmulatedEntrypoint via
     /// SVSimTestFactory, mints a battle through IMatchingBridge with a fixture MatchContext,
     /// opens a raw Socket.IO v2 client against the in-process TestServer, and drives
-    /// InitNetwork → Loaded → Swap, asserting the right scripted frames come back in order.
+    /// InitNetwork → Loaded → Swap → TurnEnd × 2, asserting the right scripted frames come
+    /// back in order including the two-cycle opponent-turn loop.
     /// </summary>
     [Test]
     [Timeout(30000)]
@@ -55,6 +56,17 @@ public class BattleNodeFlowTests
             body: new Dictionary<string, object?> { ["idxList"] = new List<object?>() }), key, ct);
         Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.Swap));
         Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.Ready));
+
+        // --- v1.1 opponent turn loop: drive two consecutive cycles ---
+        // Cycle 1: player ends turn -> server pushes opponent TurnStart + TurnEnd.
+        await client.SendMsgAsync(MakeEnvelope(NetworkBattleUri.TurnEnd, pubSeq: 5), key, ct);
+        Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.TurnStart));
+        Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.TurnEnd));
+
+        // Cycle 2: same burst again -- session phase reset to AfterReady, so the next TurnEnd matches.
+        await client.SendMsgAsync(MakeEnvelope(NetworkBattleUri.TurnEnd, pubSeq: 6), key, ct);
+        Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.TurnStart));
+        Assert.That((await client.ReceiveSynchronizeAsync(ct)).Uri, Is.EqualTo(NetworkBattleUri.TurnEnd));
     }
 
     private static MsgEnvelope MakeEnvelope(NetworkBattleUri uri, long pubSeq, Dictionary<string, object?>? body = null) =>