phpunit.xml.dist

<?xml version="1.0" encoding="utf-8"?>
<phpunit bootstrap="./tests/bootstrap.php" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd">
  <testsuites>
    <testsuite name="The project's test suite">
      <directory>./tests</directory>
    </testsuite>
  </testsuites>
</phpunit>