ComponentTestDoesNotExtendCoreTest.php

<?php

declare (strict_types=1);
// cspell:ignore analyse
namespace Drupal\PHPStan\Rules;

use Drupal\BuildTests\Framework\BuildTestBase;
use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\UnitTestCase;
use PhpParser\Node;
use PHPStan\Analyser\Scope;
use PHPStan\Node\InClassNode;
use PHPStan\Rules\Rule;
use PHPStan\Rules\RuleErrorBuilder;

/**
 * Ensures that no component tests are extending a core test base class.
 *
 * @implements Rule<\PHPStan\Node\InClassNode>
 *
 * @internal
 */
final class ComponentTestDoesNotExtendCoreTest implements Rule {
    
    /**
     * {@inheritdoc}
     */
    public function getNodeType() : string {
        return InClassNode::class;
    }
    
    /**
     * {@inheritdoc}
     */
    public function processNode(Node $node, Scope $scope) : array {
        $class = $node->getClassReflection();
        if (!str_starts_with($class->getName(), 'Drupal\\Tests\\Component')) {
            return [];
        }
        $invalidParents = [
            UnitTestCase::class,
            BuildTestBase::class,
            KernelTestBase::class,
            BrowserTestBase::class,
        ];
        foreach ($invalidParents as $invalidParent) {
            if ($class->isSubclassOf($invalidParent)) {
                return [
                    RuleErrorBuilder::message("Component tests should not extend {$invalidParent}.")->line($node->getStartLine())
                        ->build(),
                ];
            }
        }
        return [];
    }

}