phpunit.xml

<?xml version="1.0"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
         bootstrap="vendor/autoload.php"
         cacheResult="false">
  <coverage processUncoveredFiles="true">
    <include>
      <directory suffix=".php">src</directory>
    </include>
  </coverage>
  <testsuites>
    <testsuite name="default">
      <directory>tests</directory>
    </testsuite>
  </testsuites>
</phpunit>