fix rendering och refresh så det inte uppdatera sidan vid inställningar

tests/decoder_runtime.test.js

@@ -106,6 +106,7 @@ test("connect decoder opens one websocket per enabled role", () => {
     const clients = {};
     const timers = {};
     let disconnected = 0;
+    let renderCount = 0;
     const state = {
       settings: {
         wsUrl: "ws://server:9000",
@@ -125,8 +126,8 @@ test("connect decoder opens one websocket per enabled role", () => {
       setWsClient: (role, client) => { clients[role] = client; },
       getReconnectTimer: (role) => timers[role] || null,
       setReconnectTimer: (role, timer) => { timers[role] = timer; },
-      getCurrentView: () => "dashboard",
-      renderView: () => {},
+      getCurrentView: () => "settings",
+      renderView: () => { renderCount += 1; },
       updateConnectionBadge: () => {},
       processDecoderMessage: () => {},
       disconnectDecoder: () => { disconnected += 1; },
@@ -138,6 +139,10 @@ test("connect decoder opens one websocket per enabled role", () => {
       pit_entry: "ws://server:9002",
       pit_exit: "ws://server:9003",
     });
+    clients.main.onopen();
+    clients.main.onerror();
+    clients.main.onclose();
+    assert.equal(renderCount, 0);
   } finally {
     globalThis.WebSocket = OriginalWebSocket;
   }