How to exclude file from PHPUnit test suite in xml config?

Question

I have following, very simple, XML config for PHPUnit:

Answer 1

For Phpunit 6.5, exclude is under whitelist

<filter>
    <whitelist>
        <directory suffix=".php">src</directory>
        <exclude>
            <directory>src/Migrations</directory>
            <file>src/kernel.php</file>
        </exclude>
    </whitelist>
</filter>