Do not export data passed to test for PHPUnit\Event\Code\TestMethod value object by default

[sebastianbergmann]

The data provided to a test by a data provider (or by another test methods through test dependencies) is exported to a string for the value object that represents the test for the event system. This export is performed using sebastian/exporter.

PHPUnit's own event subscribers do not use this exported data, the export can therefore be made optional. This would be similar to what we did in #5515 for the Test\AssertionSucceeded and Test\AssertionFailed events.

Motivated by phpstan/phpstan#9914.

[gnutix]

@sebastianbergmann In order to try this patch, I've upgraded PHPUnit to 10.4.x locally, and stumbled upon the following error.

PHP Fatal error: Declaration of DMS\PHPUnitExtensions\ArraySubset\Constraint\ArraySubset::toString(): string must be compatible with PHPUnit\Framework\Constraint\Constraint::toString(bool $exportObjects = false): string in vendor/dms/phpunit-arraysubset-asserts/src/Constraint/ArraySubset.php on line 108

I've had other examples in Symfony code (like in Symfony\Component\Mailer\Test\Constraint\EmailCount). So I'm wondering if there should be a mention in 10.4 changelog about this BC break ?

[sebastianbergmann]

You would be correct if I planned to release PHPUnit 10.4 with this BC break :)

[gnutix]

Okay, good to know you were aware of it and it's not meant to stay.