highcharts-export-server/tests/other/stress_test.js

Convert Highcharts.JS charts into static image files.

/*******************************************************************************

Highcharts Export Server

Copyright (c) 2016-2024, Highsoft

Licenced under the MIT licence.

Additionally a valid Highcharts license is required for use.

See LICENSE file in root for details.

*******************************************************************************/

import { fetch, post } from '../../lib/fetch.js';
import 'colors';

// Test message
console.log(
  'Highcharts Export Server stress test'.yellow,
  `\nIt sends a certain number of requests in a certain interval`.green
);

// The request options
const requestBody = {
  type: 'svg',
  infile: {
    title: {
      text: 'Chart'
    },
    xAxis: {
      categories: ['Jan', 'Feb', 'Mar']
    },
    series: [
      {
        data: [29.9, 71.5, 106.4]
      }
    ]
  }
};

const url = 'http://127.0.0.1:7801/';
const requestsNumber = 1;
const interval = 150;

const stressTest = () => {
  for (let i = 1; i <= requestsNumber; i++) {
    const startTime = new Date().getTime();

    // Perform a request
    post(url, requestBody)
      .then(async (res) => {
        const postTime = new Date().getTime() - startTime;
        console.log(`${i} request is done, took ${postTime}ms`);
        console.log(`---\n${res.text}\n---`);
      })
      .catch((error) => {
        return console.log(`[${i}] request returned error: ${error}`);
      });
  }
};

// Perform a health check before continuing
fetch(`${url}/health`)
  .then(() => {
    stressTest();
    setInterval(stressTest, interval);
  })
  .catch((error) => {
    if (error.code === 'ECONNREFUSED') {
      return console.log(
        `[ERROR] Couldn't connect to ${url}.`.red,
        `Set your server before running tests.`.red
      );
    }
  });