AV Tester is a user interaction simulator plugin for WordPress that doesn’t require any special setup. Just install as simply as other plugins and start testing.
To run test, all you have to do is define a series of user actions in dashboard that would be simulated on browser. So you can track if there is any missing things or bugs in new releases of your WordPress plugin or theme.
<h3>Contribution</h3>
Here is the public repository of this plugin on github if you are interested to contribute to… 
https://github.com/jayedul/automated-visual-tester

Automated Visual Tester

An automated testing plugin for WordPress CMS that simulates basic user interactions on browser without any crazy setup.

adanselm

QAlimucho enables automated end-to-end testing of your WooCommerce checkout flow without processing real payments. Perfect for QA teams, developers, and automated testing pipelines.
Features:
<ul>
<li>Test payment gateway that bypasses real payment processing</li>
<li>Secret key authentication for security</li>
<li>Automatic cleanup of test orders (1 hour retention)</li>
<li>Manual cleanup option from admin panel</li>
<li>REST API for integration with testing tools</li>
<li>HPOS (High-Performance Order Storage) compatible</li>
</ul>
How It Works:
<ol>
<li>Install and activate the plugin</li>
<li>Copy the secret key from Settings > QAlimucho</li>
<li>Configure your QAlimucho web testing tool with the secret</li>
<li>Run automated checkout tests – orders complete instantly without payment</li>
</ol>
Security:
<ul>
<li>Test gateway only visible when valid secret key is provided</li>
<li>Orders marked as test orders and auto-deleted</li>
<li>Rate limiting on API endpoints</li>
<li>Timing-safe secret comparison</li>
</ul>

QAlimucho for WooCommerce

Enable automated checkout testing for WooCommerce without real payments.

Automated Visual Tester vs QAlimucho for WooCommerce