DefinitionFileLoader example

use PHPUnit\Framework\TestCase;
use Symfony\Component\Config\Definition\BaseNode;
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\Loader\DefinitionFileLoader;
use Symfony\Component\Config\FileLocator;

class DefinitionFileLoaderTest extends TestCase
{
    public function testSupports()
    {
        $loader = new DefinitionFileLoader(new TreeBuilder('test'), new FileLocator());

        $this->assertTrue($loader->supports('foo.php'), '->supports() returns true if the resource is loadable');
        $this->assertFalse($loader->supports('foo.foo'), '->supports() returns false if the resource is not loadable');
        $this->assertTrue($loader->supports('with_wrong_ext.yml', 'php'), '->supports() returns true if the resource with forced type is loadable');
    }

    public function testLoad()
    {
        $loader = new DefinitionFileLoader($treeBuilder = new TreeBuilder('test'), new FileLocator());
        $loader->load(__DIR__.'/../../Fixtures/Loader/node_simple.php');

        

public function __construct(
        private ConfigurableInterface $subject,
        private ?ContainerBuilder $container,
        private string $alias,
    ) {
    }

    public function getConfigTreeBuilder(): TreeBuilder
    {
        $treeBuilder = new TreeBuilder($this->alias);
        $file = (new \ReflectionObject($this->subject))->getFileName();
        $loader = new DefinitionFileLoader($treeBuilder, new FileLocator(\dirname($file)), $this->container);
        $configurator = new DefinitionConfigurator($treeBuilder, $loader, $file, $file);

        $this->subject->configure($configurator);

        return $treeBuilder;
    }
}