test: cover server restart session recovery

tests/state-recovery.test.ts

@@ -193,6 +193,103 @@ describe("YNX-1105e: Server state recovery", () => {
     await secondRuntime.stop();
   });
 
+  it("SR-02: restart drops in-memory active sessions and requires reconnect", async () => {
+    const storePath = await createTempServerStorePath();
+    const store = createYonexusServerStore(storePath);
+    const now = 1_710_000_000;
+
+    const firstTransport = createMockTransport();
+    const firstRuntime = createYonexusServerRuntime({
+      config: {
+        followerIdentifiers: ["client-a"],
+        notifyBotToken: "stub-token",
+        adminUserId: "admin-user",
+        listenHost: "127.0.0.1",
+        listenPort: 8787
+      },
+      store,
+      transport: firstTransport.transport,
+      now: () => now
+    });
+
+    await firstRuntime.start();
+    const record = firstRuntime.state.registry.clients.get("client-a");
+    expect(record).toBeDefined();
+
+    record!.pairingStatus = "paired";
+    record!.publicKey = "test-public-key";
+    record!.secret = "test-secret";
+    record!.status = "online";
+    record!.lastAuthenticatedAt = now;
+    record!.lastHeartbeatAt = now;
+    record!.updatedAt = now;
+
+    firstRuntime.state.registry.sessions.set("client-a", {
+      identifier: "client-a",
+      socket: createMockSocket(),
+      isAuthenticated: true,
+      connectedAt: now,
+      lastActivityAt: now,
+      publicKey: "test-public-key"
+    });
+
+    await firstRuntime.stop();
+
+    const secondTransport = createMockTransport();
+    const secondRuntime = createYonexusServerRuntime({
+      config: {
+        followerIdentifiers: ["client-a"],
+        notifyBotToken: "stub-token",
+        adminUserId: "admin-user",
+        listenHost: "127.0.0.1",
+        listenPort: 8787
+      },
+      store,
+      transport: secondTransport.transport,
+      now: () => now + 5
+    });
+
+    await secondRuntime.start();
+
+    const reloadedRecord = secondRuntime.state.registry.clients.get("client-a");
+    expect(reloadedRecord).toMatchObject({
+      identifier: "client-a",
+      pairingStatus: "paired",
+      secret: "test-secret",
+      publicKey: "test-public-key",
+      status: "online",
+      lastAuthenticatedAt: now,
+      lastHeartbeatAt: now
+    });
+    expect(secondRuntime.state.registry.sessions.size).toBe(0);
+
+    const reconnectConnection = createConnection();
+    await secondRuntime.handleMessage(
+      reconnectConnection,
+      encodeBuiltin(
+        buildHello(
+          {
+            identifier: "client-a",
+            hasSecret: true,
+            hasKeyPair: true,
+            publicKey: "test-public-key",
+            protocolVersion: YONEXUS_PROTOCOL_VERSION
+          },
+          { requestId: "req-hello-reconnect", timestamp: now + 5 }
+        )
+      )
+    );
+
+    const helloAck = decodeBuiltin(secondTransport.sentToConnection[0].message);
+    expect(helloAck.type).toBe("hello_ack");
+    expect(helloAck.payload).toMatchObject({
+      identifier: "client-a",
+      nextAction: "auth_required"
+    });
+
+    await secondRuntime.stop();
+  });
+
   it("SR-05: corrupted server store raises YonexusServerStoreCorruptionError", async () => {
     const storePath = await createTempServerStorePath();
     await writeFile(storePath, '{"version":1,"clients":"oops"}\n', "utf8");