Skip to main content
David Mello

Software Testing

Practical guides for software testers and QA engineers, with a focus on Nightwatch.js and end-to-end test automation. Whether you're getting started with Nightwatch.js, migrating to TypeScript, or integrating tools like TestRail, SauceLabs, and Mailtrap into your pipeline — these articles cover real-world setups and patterns.

Topics include API testing, visual regression testing, accessibility testing, the page object model, database testing, and environment configuration.

19 articles

Is ISTQB Worth It? A Hiring Manager's Honest Take

Is ISTQB Worth It? A Hiring Manager's Honest Take

After interviewing and evaluating over a hundred QA engineers, testers, and quality assurance professionals, here's what ISTQB certification actually signals — and what it doesn't.
Stop Writing API Tests Manually — Let Your OpenAPI Spec Do the Work

Stop Writing API Tests Manually — Let Your OpenAPI Spec Do the Work

Schemathesis automates API testing by generating test cases directly from your OpenAPI spec — covering edge cases, schema violations, and server errors you'd never think of or have the time to write manually.
Best Websites for Practicing Test Automation

Best Websites for Practicing Test Automation

Looking for example demo sites to practice your test automation against with Selenium, Playwright, or Cypress? Here is a list of the top demo websites for practicing your test automation skills against.
AI in Testing is Here — But Is Your Test Automation Stuck in Someone Else's Platform?

AI in Testing is Here — But Is Your Test Automation Stuck in Someone Else's Platform?

BrowserStack's State of AI Testing 2026 report shows 93% of companies using AI in testing workflows. Here's what the data means for QA engineers and vendor lock-in.
Adding Custom Commands to Nightwatch TypeScript Projects

Adding Custom Commands to Nightwatch TypeScript Projects

Learn how to extend Nightwatch's built-in automation commands with your own when working inside a TypeScript Nightwatch test project in this post.
Add API Testing to your Nightwatch Test Automation

Add API Testing to your Nightwatch Test Automation

Learn how to add API testing to your existing selenium automated tests using the API testing plugin for Nightwatch.js
Testing Software using Decision Tables

Testing Software using Decision Tables

Decision tables are software testing tools used to ensure one fully captures the expected behaviors of features involving complex business rules. Once created, decision tables provide valuable documentation of the software's desired behavior that one can directly use to create their test cases with. Learn how to create and use decision tables for testing your next Agile story in this article.
Automated Email Testing with Nightwatch and MailTrap

Automated Email Testing with Nightwatch and MailTrap

This handy guide will show you how to perform email testing in your end-to-end test automation to verify email delivery, recipient, localized content, or follow links out of account verification/activation emails in your Nightwatch selenium test suite using the MailTrap email sandbox tool.
Automated Visual Regression Testing Guide - Best visual tools, how, and when to use them

Automated Visual Regression Testing Guide - Best visual tools, how, and when to use them

Visual regression testing is a QA testing technique effective at catching look and feel or layout regression defects and catching bugs that you aren't explicitly looking for in your tests. These tests can be flaky or high maintenance without the right combination of visual testing tool, platform, and style so this guide will help you pick the best visual regression tool and write maintainable visual tests.
Using TypeScript to write Nightwatch.js Automated Tests

Using TypeScript to write Nightwatch.js Automated Tests

Nightwatch supports TypeScript! Learn how to write your Nightwatch automated tests and page objects using TypeScript with the examples in this documentation. Get the benefits of intellisense and type checking in both your tests and page objects!
Integrating TestRail with Nightwatch.js

Integrating TestRail with Nightwatch.js

Test case management systems that aren't integrated with your automation framework are wasteful. Learn how to integrate Nightwatch automated test results into TestRail automatically in this tutorial with the help of testrail-nightwatch-updater.
Using Nightwatch global variables to write tests that work everywhere

Using Nightwatch global variables to write tests that work everywhere

Learn how to use Nightwatch.js global variables so you don't need to hardcode values in your test automation allowing them to work in multiple environments and reduce test maintenance costs.
Implementing a Minimum Accessibility Test Plan

Implementing a Minimum Accessibility Test Plan

This tutorial will cover how to implement a minimum accessibility test plan against a website using Nightwatch.js and aXe.
How to use SauceLabs with Nightwatch.js

How to use SauceLabs with Nightwatch.js

Learn how to configure Nightwatch.js to use SauceLabs for scalable, parallelized, multi-browser automated test execution in this software testing tutorial.
South Florida Test Automation Meetup presentation for Getting started with NightwatchJS

South Florida Test Automation Meetup presentation for Getting started with NightwatchJS

Our local South Florida Test Automation chapter met virtually to go over the Nightwatch.js framework. It was our first virtual testing Meetup in an effort to adapt to the new normal.
Writing maintainable tests with Nightwatch.js page objects and commands

Writing maintainable tests with Nightwatch.js page objects and commands

Using page objects and commands for repetitive selectors and test code allows you to write maintainable automated test cases. Learn how in this Nightwatch automation tutorial.
Automated database testing with Nightwatch.js

Automated database testing with Nightwatch.js

When writing automated browser tests at the UI using frameworks like Selenium or Nightwatch.js it can be useful to validate your front-end interactions cause the desired changes in the backend database. This tutorial will show you how to use Nightwatch to write database tests against SQL databases.
Automated web accessibility testing with Nightwatch.js and axe

Automated web accessibility testing with Nightwatch.js and axe

There are quite a few web accessibility testing tools out there, but I thought I'd see if any could fit in with my existing automated Nightwatch tests.
Getting started with NightwatchJS

Getting started with NightwatchJS

I've been looking at newer browser automation frameworks that might also be written in NodeJS and Nightwatch was a match.