Commands#

• k6 new: 자바스크립트 파일 생성
• k6 run script.js: script.js 실행하기
• k6 run --vus 10 --duration 30s script.js: 가상 유저의 개수와 시간을 설정해서 script.js 실행하기

GET Request#

import { sleep } from "k6";
import http from "k6/http";

export const options = {
  vus: 10000,
  duration: "30s",
};

export default function () {
  http.get("http://localhost:8080/health");
}

Socket Request#

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

export default function () {
  const url = "ws://localhost:8080/ws/chat";

  const response = ws.connect(url, function (socket) {
    socket.on("open", function open() {
      console.log("connected");
      socket.send(`{"message":"hello"}`);

      socket.setInterval(function timeout() {
        socket.ping();
        console.log("Pinging every 1sec (setInterval test)");
      }, 1000);
    });

    socket.on("ping", function () {
      console.log("PING!");
    });

    socket.on("message", function (message) {
      console.log(`Received message: ${message}`);
    });

    socket.on("close", function () {
      console.log("disconnected");
    });

    socket.on("error", function (e) {
      if (e.error() != "websocket: close sent") {
        console.log("An unexpected error occured: ", e.error());
      }
    });

    socket.setTimeout(function () {
      console.log("2 seconds passed, closing the socket");
      socket.close();
    }, 2000);
  });

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