drupal_composer_builder/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/11.2/phpunit.xsd"
         colors="true"
         beStrictAboutTestsThatDoNotTestAnything="true"
         beStrictAboutOutputDuringTests="true"
         beStrictAboutChangesToGlobalState="true"
         failOnRisky="true"
         failOnWarning="true"
>
  <testsuites>
    <testsuite name="unit">
      <directory>tests</directory>
    </testsuite>
  </testsuites>
  <!-- Filter for coverage reports. -->
  <coverage
    includeUncoveredFiles="true"
    ignoreDeprecatedCodeUnits="true">
  </coverage>
  <source ignoreIndirectDeprecations="true">
    <include>
      <directory suffix=".php">src</directory>
    </include>
    <exclude>
      <directory>vendor</directory>
    </exclude>
  </source>

  <php>
    <ini name="precision" value="14"/>
    <ini name="serialize_precision" value="14"/>

    <const name="PHPUNIT_TESTSUITE" value="true"/>
  </php>
</phpunit>