Add /delay endpoint to WS express server (#5326)

packages/insomnia-smoke-test/fixtures/websockets.yaml

@@ -59,6 +59,26 @@ resources:
     headers: []
     authentication: {}
     _type: websocket_request
+  - _id: ws-req_49815a73d8bf4024baebf82037b5730d
+    parentId: wrk_db59cf2b74764e6a80c0dcbcf3d67130
+    modified: 1666696265531
+    created: 1666695713692
+    name: delay
+    url: ws://localhost:4010/delay
+    metaSortKey: -1661942202573
+    headers:
+      - id: pair_d5c62785928d4cc3a09b297bfbb847f7
+        name: duration
+        value: "5"
+        description: ""
+    authentication: {}
+    parameters: []
+    settingEncodeUrl: true
+    settingStoreCookies: true
+    settingSendCookies: true
+    settingFollowRedirects: global
+    description: ""
+    _type: websocket_request
   - _id: env_78d7375877d288dfb527a256e6d7e92dce4ff968
     parentId: wrk_db59cf2b74764e6a80c0dcbcf3d67130
     modified: 1661942194375

packages/insomnia-smoke-test/server/websocket.ts

@@ -68,6 +68,13 @@ const upgrade = (wss: WebSocketServer, request: IncomingMessage, socket: Socket,
     }
     return redirectOnSuccess(socket);
   }
+  if (request.url === '/delay') {
+    const delaySec = Number.parseInt(request.headers.duration as string || '5');
+    setTimeout(function() {
+      redirectOnSuccess(socket);
+    }, delaySec * 1000);
+    return ;
+  }
   if (request.url === '/basic-auth') {
     // login with user:password
     if (request.headers.authorization !== 'Basic dXNlcjpwYXNzd29yZA==') {