UnitTestSuite.php

<?php

namespace Drupal\Tests\TestSuites;

require_once __DIR__ . '/TestSuiteBase.php';

/**
 * Discovers tests for the unit test suite.
 */
class UnitTestSuite extends TestSuiteBase {
    
    /**
     * Factory method which loads up a suite with all unit tests.
     *
     * @return static
     *   The test suite.
     */
    public static function suite() {
        $root = dirname(dirname(dirname(__DIR__)));
        $suite = new static('unit');
        $suite->addTestsBySuiteNamespace($root, 'Unit');
        return $suite;
    }

}