File: phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.4/phpunit.xsd"
         bootstrap="./vendor/autoload.php"
         colors="true"
         stderr="true"
         beStrictAboutTestsThatDoNotTestAnything="false"
         displayDetailsOnPhpunitDeprecations="true"
         displayDetailsOnTestsThatTriggerDeprecations="true"
         displayDetailsOnTestsThatTriggerErrors="true"
         displayDetailsOnTestsThatTriggerNotices="true"
         displayDetailsOnTestsThatTriggerWarnings="true">

    <php>
        <ini name="error_reporting" value="-1" />
    </php>

    <testsuites>
        <testsuite name="UnitTests">
            <directory>tests/unit</directory>
        </testsuite>

        <testsuite name="IntegrationTests">
            <directory>tests/integration</directory>
        </testsuite>
    </testsuites>

    <source>
        <include>
            <directory suffix=".php">src</directory>
            <directory suffix=".php">doc/samples</directory>
        </include>
    </source>

</phpunit>