File: phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>

<phpunit backupGlobals="false"
         backupStaticAttributes="false"
         colors="true"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         processIsolation="false"
         stopOnFailure="false"
         syntaxCheck="false"
         bootstrap="vendor/autoload.php">

    <php>
        <server name='HTTPS'     value='' />
        <server name='HTTP_HOST' value='site.com' />
    </php>
    
    <testsuites>
        <testsuite name="Test Suite">
            <directory>tests</directory>
        </testsuite>
    </testsuites>

    <filter>
        <whitelist>
            <directory>src</directory>
        </whitelist>
    </filter>

</phpunit>