File: phpunit.xml

<?xml version="1.0" encoding="utf-8"?>
<phpunit 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.1/phpunit.xsd" 
    bootstrap="vendor/autoload.php" 
    colors="true" 
    failOnRisky="true" 
    failOnWarning="true" 
    cacheDirectory=".phpunit.cache"
    displayDetailsOnTestsThatTriggerWarnings="true"
>
  <testsuites>
    <testsuite name="tests">
      <directory>tests/Unit</directory>
    </testsuite>
  </testsuites>
  <coverage/>
  <source>
    <include>
      <directory suffix=".php">app</directory>
    </include>
  </source>
</phpunit>