k6-jslib-utils

A collection of small utility functions useful during load testing with k6.

Docs: https://grafana.com/docs/k6/latest/javascript-api/jslib/utils

Download the latest release from https://jslib.k6.io/

Example

import { sleep } from 'k6'
import http from 'k6/http'

import { randomIntBetween, randomString, randomItem, uuidv4, findBetween } from './src/utils.js'

export default function () {
    let res = http.post(`https://test-api.k6.io/user/register/`, {
        first_name: randomItem(['Joe', 'Jane']), // random name
        last_name: `Jon${randomString(1, 'aeiou')}s`, //random character from given list
        username: `user_${randomString(10)}@example.com`, // random email address,
        password: uuidv4(), // random password in form of uuid
    })

    let username = findBetween(res.body, '"username":"', '"') // grab the username from surrounding strings

    sleep(randomIntBetween(1, 5)) // sleep between 1 and 5 seconds.
}

Publish a new version

1. Build a new minified version using the webpack command npm run webpack.
2. Follow the jslib.k6.io procedure for creating a new version.
3. Copy the generated ./build/index.min.js in the expected folder as index.js and open a new PR to jslib.k6.io.