PHPUnit 12.1.0

[morozov]

Change summary

1. Use the NativeType enum as an argument for IsType instead of IsType constants.
2. Use the DataProvider annotation instead of @dataProvider.
3. Use ini_set and ini_restore instead of TestCase#iniSet().
4. Annotate test method parameters passed as an argument to InvocationStubberImplementation#method() as non-empty-string to keep PHPStan happy.

Known issues

PhpStorm as of version 2024.3.5 doesn't support PHPUnit 11 or newer (see WI-75593). As a workaround, one may copy phpunit.xml.dist as phpunit.xml and configure cacheResultFile (see WI-50445).

[morozov]

It looks like PHPUnit 11 requires PHP 8.2, PHPUnit 12 requires PHP 8.3 – both constraints are justified given the upstream support for these PHP versions.

Should we require PHP 8.3 starting DBAL 4.3.0 (#6889)?