Systems | Development | Analytics | API | Testing

Load Testing

What's New In Loadero (November 2021)

The busy month of November full of fun times and hard work has finished and it’s time to share the updates we made to Loadero during the month. We added new media files for participant’s webcam simulation, made various performance improvements, added browsers and published the last post in our popular series about using Javascript for test automation. Here’s a list of the main updates in Loadero this month.

How to Use CSV Data Set to Configure JMeter Tests

Apache JMeter is a Java-based, open source testing tool, which can help you create and run functional and load tests for Websites, APIs (REST and SOAP) and other web services. In this example we are going to have a look on how to create and run a JMeter test using a CSV file for our data, and consume the data in our test from that CSV file. First, let’s open JMeter and create a new JMeter test script. Add a Thread Group Inside the Thread Group add the following.

A beginner's guide to test automation with Javascript (Nightwatch.js). Part 4.

Congratulations on getting to part 4 of the “A beginner’s guide to test automation with Javascript (Nighwatch.js)” blog series! This part will help you to improve your test script (and make it cooler). We’ll explain different style suggestions and the overall script structure that we follow in Loadero to bring your script to a new level.

How to Perform Load Testing with k6 using Buddy CI/CD

In this guide, we'll look at adding performance testing to your development workflow with Buddy and k6. k6 is an open-source load testing tool for testing the performance of APIs, microservices, and websites. Developers can use k6 to test a system's performance under a particular load to catch performance regressions or errors.

Testing Serverless APIs on AWS

​​ Recently AWS made the new ARM processors for Lambda functions generally available. With that change Serverless functions now use Graviton2, said to offer better performance at lower cost. I built a sample API on AWS using API Gateway and Lambda, and I wrote two endpoints, one CPU-intensive (calculating Pi using Leibniz's formula), the other a typical data transfer endpoint (returning an arbitrary number of bytes). Two very different endpoints for my experiment.

Browser testing and API load testing in the same script with k6 (k6 Office Hours #35)

CEO Robin Gustafsson, Tom Miseur (Technical Specialist) and Nicole van der Hoeven (Developer Advocate) talk about xk6-browser, which allows browser testing in the same script as API load testing. We're really excited to demonstrate it and talk about why we think this is a great next step for k6.

Combine k6 OSS and Prometheus for better observability

k6 Cloud, our managed testing solution, supports Prometheus to store and correlate performance testing metrics within your observability stack since a while now. Announced at Grafana ObservabilityCON, we launched Prometheus support to k6 Open Source - our free, open, and extensible load testing tool. k6 OSS supports sending k6 metrics to multiple outputs such as InfluxDB, New Relic, StatsD, and more.

A Guide to Load Testing Node.js APIs with Artillery

Artillery is an open-source command-line tool purpose-built for load testing and smoke testing web applications. It is written in JavaScript and it supports testing HTTP, Socket.io, and WebSockets APIs. This article will get you started with load testing your Node.js APIs using Artillery. You’ll be able to detect and fix critical performance issues before you deploy code to production.