phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>
<phpunit bootstrap="vendor/autoload.php" colors="true"
         displayDetailsOnTestsThatTriggerDeprecations="true">
    <testsuites>
        <testsuite name="tests">
            <directory>test/</directory>
        </testsuite>
    </testsuites>

    <coverage>
        <include>
            <directory suffix=".php">src</directory>
        </include>
    </coverage>
</phpunit>