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/7.4/phpunit.xsd"
         bootstrap="tests/bootstrap.php"
         failOnWarning="true"
         failOnRisky="true"
         forceCoversAnnotation="true"
         beStrictAboutCoversAnnotation="true"
         beStrictAboutOutputDuringTests="true"
         beStrictAboutTodoAnnotatedTests="true"
         colors="true"
         verbose="true"
         defaultTestSuite="default"
         >
   <php>
        <ini name="display_errors" value="On"/>
        <ini name="error_reporting" value="-1"/>
   </php>
    <testsuites>
        <testsuite name="default">
            <directory suffix="Test.php">tests/suite</directory>
        </testsuite>
        <testsuite name="perl_random">
            <directory suffix="Test.php">tests/PerlRandom</directory>
        </testsuite>
    </testsuites>
    <filter>
        <whitelist processUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">src</directory>
        </whitelist>
    </filter>
</phpunit>