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.

Eli Hanna

⚠️ Important: Development Environment Only
This plugin is designed for development environments like LocalWP, XAMPP, or self-hosted servers. It will not work on most managed hosting providers (WP Engine, Kinsta, SiteGround, etc.) due to security restrictions that disable the <code>exec()</code> function and limit access to PHP binaries.
How It Works
This plugin leverages <a href="https://github.com/squizlabs/PHP_CodeSniffer" rel="nofollow ugc">PHP_CodeSniffer</a> with the <a href="https://github.com/PHPCompatibility/PHPCompatibility" rel="nofollow ugc">PHPCompatibility</a> standard to perform deep static analysis of your PHP code.
Core Components:
<ol>
<li>Bundled Dependencies: Includes PHP_CodeSniffer and PHPCompatibility ruleset</li>
<li>Batch Processing: Scans files in configurable batches (10-100 files) to manage memory usage</li>
<li>Command Execution: Executes PHPCS via PHP’s <code>exec()</code> function with specific parameters</li>
<li>Server-Side State: Stores file lists in WordPress options to optimize AJAX requests</li>
<li>Progressive UI: Real-time batch results with stop/start controls</li>
</ol>
How to Use:
<ol>
<li>Navigate to Tools → PHP Compatibility Scanner</li>
<li>Review the System Check section to ensure your environment is compatible</li>
<li>Select the plugins and/or themes you want to scan by checking their boxes</li>
<li>Configure your scan options:
<ul>
<li>Target PHP Version: Choose the PHP version you want to test against (7.4 – 8.4)</li>
<li>Batch Size: Select how many files to process at once (default: 50 files)</li>
<li>Skip Vendor Directory: Keep checked to skip third-party dependencies</li>
</ul>
</li>
<li>Click Start Scan to begin the compatibility check</li>
<li>View results in real-time as each plugin/theme is scanned</li>
<li>Review any errors (❌) or warnings (⚠️) found in your code</li>
<li>Click on any target to expand and see detailed compatibility issues</li>
</ol>
Why It Requires Development Environments
<ul>
<li><code>exec()</code> Function: Required to run PHPCS binary – disabled on managed hosts</li>
<li>PHP Binary Access: Needs access to PHP executable – restricted on shared hosting</li>
<li>Composer Dependencies: Requires vendor directory with PHPCS installation</li>
<li>File System Access: Creates temporary files for batch processing</li>
<li>Memory/Time Limits: Long-running scans need relaxed execution limits</li>
</ul>
Supported Environments
<ul>
<li>LocalWP (recommended)</li>
<li>XAMPP/MAMP</li>
<li>Docker WordPress setups</li>
<li>Self-hosted VPS/dedicated servers</li>
<li>Development environments with shell access</li>
</ul>
Unsupported Environments
<ul>
<li>WP Engine (exec() disabled)</li>
<li>Kinsta (security restrictions)</li>
<li>SiteGround (managed hosting limitations)</li>
<li>GoDaddy Managed WordPress (function restrictions)</li>
<li>WordPress.com (no plugin uploads)</li>
<li>Most shared hosting providers</li>
</ul>
<h3>Contributing</h3>
This plugin is actively developed for WordPress development environments. Contributions are welcome, especially:
<ul>
<li>Additional PHP version compatibility rules</li>
<li>Performance optimizations</li>
<li>UI/UX improvements</li>
<li>Hosted environment compatibility solutions</li>
</ul>
<h3>Technical Details</h3>
Dependencies
<ul>
<li>PHP_CodeSniffer: ^3.13 (static analysis engine)</li>
<li>PHPCompatibility: dev-develop (compatibility ruleset)</li>
</ul>
License
GPLv2 or later – same as WordPress core.

Eli's PHP Compatibility Scanner


Good quality plugin and fast support!



Super! Thanks!


Excellent!

A comprehensive WordPress plugin that scans your plugins and themes for PHP version compatibility issues using the  PHPCompatibility ruleset.

Automated Visual Tester vs Eli's PHP Compatibility Scanner