text: <?xml version="1.0" encoding="UTF-8"?>
  <phpunit bootstrap="./vendor/autoload.php"
           colors="true">
      <testsuites>
          <testsuite>
              <directory>tests</directory>
          </testsuite>
      </testsuites>
      <filter>
          <whitelist>
              <directory suffix=".php">src</directory>
              <exclude>
                  <file>src/functions.php</file>
              </exclude>
          </whitelist>
      </filter>
  </phpunit>
  