Quality Assurance (QA): Test our release packages. Install them from scratch, try updates from previous versions, make sure everything is working, check if the upgrader works along the different (Repo)-Versions.

The chain breaks at the weakest link.

1. TodoList
2. https://wackowiki.org/lab/
3. Setup a local Test Server

Tools

• XAMPP
• PHPUnit
• http://xdebug.org/
• https://developers.google.com/speed/pagespeed/insights/
• Firefox
  • Firebug
  • Web Developer
  • Quick Locale Switcher
  • Live HTTP Headers
  • Modify Headers
  • User Agent Switcher
  • RefControl
  • uMatrix

Testing

1. Test new patches – try them out and see what breaks
2. Do performance tests – compare versions & settings
3. Do security audits
4. Do benchmarks
5. Do localization checks
6. Check standards / spec compliance – SQL, XML, APIs, ...
   1. http://validator.w3.org/nu/
   2. https://jigsaw.w3.org/css-validator/
   3. https://validator.w3.org/feed/
7. Test integration – does the new version work with all scripts & dbs?
8. check error logs
   1. \apache\logs\error.log
   2. \php\logs\php_error_log
9. set 'debug' in secondary config to 3
10. set PHP_ERROR_REPORTING in config/constants.php

    define('PHP_ERROR_REPORTING',	5); // PHP error reporting: 0 - off, 6 - all

    1. Fatal error
    2. Parse error
    3. Warning
    4. Notice