test(core): lock the recovery floor below an unclaimed gap under a silent tail

Author: ericallam

packages/core/src/v3/sessionStreams/router.test.ts

@@ -629,6 +629,15 @@ describe("SessionChannelRouter: recovered claim/settle floor", () => {
     expect(r.resumeFloor()).toBe(1);
   });
 
+  it("holds the floor below an unclaimed gap while later claims are owed and the tail is silent", () => {
+    const r = router();
+    r.restore({ resumeFrom: 0 });
+    r.markRecovered([1, 2, 5, 6]);
+    r.settleRecovered(1);
+    r.settleRecovered(2);
+    expect(r.resumeFloor()).toBe(2);
+  });
+
   it("clears claims and owed records on reset", () => {
     const r = router();
     r.restore({ resumeFrom: 0 });