Support for using the expectException() method with \PHPUnit\Framework\Error\Deprecated, \PHPUnit\Framework\Error\Error, \PHPUnit\Framework\Error\Notice, and \PHPUnit\Framework\Error\Warning is deprecated and will be removed in PHPUnit 10.

Instead, the expectDeprecation(), expectError(), expectNotice(), and expectWarning() methods should be used.

See Testing PHP Errors, Warnings, and Notices (phpunit.readthedocs.io) for details.