phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" backupStaticAttributes="false"
         bootstrap="test/bootstrap.php" colors="false" convertErrorsToExceptions="true" convertNoticesToExceptions="true"
         convertWarningsToExceptions="true" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">

    <testsuites>
        <testsuite name="Library Test Suite">
            <directory>test/</directory>
        </testsuite>
    </testsuites>

    <filter>
        <whitelist>
            <directory suffix=".php">app</directory>
        </whitelist>
    </filter>
</phpunit>