.. _write-assertions-about-deprecations:

Deprecationnotices atautoloading time

DeprecationNotices atAutoloading Time

By default, the PHPUnit Bridge uses ``DebugClassLoader`` from Debug component to

throw deprecation notices at autoloading time. It attempts to throw more helpful

exceptions when a class isn't found by the registered autoloaders.

All autoloaders that implement a findFile() method are replaced with a ``DebugClassLoader`` wrapper.

This can be disabled by setting ``debug-class-loader`` option to ``0`` in ``phpunit.xml.dist``.

By default, the PHPUnit Bridge uses ``DebugClassLoader`` from the

:doc:`Debug component</components/debug>` to throw deprecation notices at

class autoloading time. This can be disabled with the ``debug-class-loader`` option.

..code-block::xml

..versionadded::4.2

The ``DebugClassLoader`` integration was introduced in Symfony 4.2.

Write Assertions about Deprecations