PHP Fatal Error: With PHPunit 10 and above getting a php fatal error of overriding final methods

[apathak18]

Steps to reproduce

include OutputAwareTrait or IO in your phpunit test case which extends PHPUnit\Framework\TestCase
On running that particular will throw a php fatal error:
PHP Fatal error: Cannot override final method PHPUnit\Framework\TestCase::output() in /Project-Dir/vendor/consolidation/robo/src/Common/OutputAwareTrait.php on line 33

Expected behavior

Phpunit will run without php fatal error.

Actual behavior

PHP Fatal error: Cannot override final method PHPUnit\Framework\TestCase::output() in /Project-Dir/vendor/consolidation/robo/src/Common/OutputAwareTrait.php on line 33

System Configuration

PHP version: 8.2
PHPunit: 10.5.12

[greg-1-anderson]

This incompatibility is unfortunate, but as a workaround, you could clone OutputAwareTrait and make your own version in your own namespace, since this is just a utility trait.

Fixing this would break backwards compatibility, and therefore could not happen until Robo 5. I am unlikely to create a new major version just for this, and currently there is no scheduled timeframe for a new major version.