phpunit.xml

<phpunit 
    bootstrap="./tests/bootstrap.php" 
    colors="true"
    xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    displayDetailsOnTestsThatTriggerWarnings="true"
    failOnWarning="true"
    failOnPhpunitWarning="true">
    <testsuites>
        <testsuite name="Functional">
            <directory>./tests/Functional</directory>
        </testsuite>
        <testsuite name="Integration">
            <directory>./tests/Integration</directory>
        </testsuite>
        <testsuite name="Unit">
            <directory>./tests/Unit</directory>
        </testsuite>
    </testsuites>
</phpunit>