DumpNode example

final class DumpTokenParser extends AbstractTokenParser
{
    public function parse(Token $token): Node
    {
        $values = null;
        if (!$this->parser->getStream()->test(Token::BLOCK_END_TYPE)) {
            $values = $this->parser->getExpressionParser()->parseMultitargetExpression();
        }
        $this->parser->getStream()->expect(Token::BLOCK_END_TYPE);

        return new DumpNode($this->parser->getVarName(), $values, $token->getLine(), $this->getTag());
    }

    public function getTag(): string
    {
        return 'dump';
    }
}

use Symfony\Bridge\Twig\Node\DumpNode;
use Twig\Compiler;
use Twig\Environment;
use Twig\Loader\LoaderInterface;
use Twig\Node\Expression\NameExpression;
use Twig\Node\Node;

class DumpNodeTest extends TestCase
{
    public function testNoVar()
    {
        $node = new DumpNode('bar', null, 7);

        $env = new Environment($this->createMock(LoaderInterface::class));
        $compiler = new Compiler($env);

        $expected = <<<'EOTXT' if ($this->env->isDebug()) { $barvars = []; foreach ($context as $barkey => $barval) { if (!$barval instanceof \Twig\Template) { $barvars[$barkey] = $barval; } } // line 7 \Symfony\Component\VarDumper\VarDumper::dump($barvars); }