phpunit.xml
<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
bootstrap="vendor/autoload.php"
verbose="true">
<testsuite name="php-di">
<directory suffix="Test.php">tests</directory>
</testsuite>
<filter>
<whitelist addUncoveredFilesFromWhitelist="true">
<directory suffix=".php">src</directory>
</whitelist>
</filter>
</phpunit>