And tell meanwhile that adding the Debug component will provide extra checks provided by DebugClassLoader by default. Introduced in https://github.com/symfony/symfony/pull/28412 In phpunit.xml.dist: ```xml <listeners> <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener"> <arguments> <array> <element key="debug-class-loader"><integer>0</integer></element> ... ```