k6-websocket-bug.js

import ws from "k6/ws";
import {check} from "k6";


export let options = {
  vus: 1,
  duration: "5s"
}

export default function () {
  var url = "ws://echo.websocket.org";

  var response = ws.connect(url, {}, function (socket) {

    socket.ping();
    socket.on('pong', function (e) {
      console.log('received pong');
    });

    socket.on('error', function (e) {
      if (e) {
        console.log('k6 error ' + e.error());
      }
    });

  });

  check(response, { "status is 101": (r) => r && r.status === 101 });

};