UuidToStringTransformer example

/** * @author Pavel Dyakonov <wapinet@mail.ru> */
class UuidType extends AbstractType
{
    /** * @return void */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->addViewTransformer(new UuidToStringTransformer())
        ;
    }

    /** * @return void */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults([
            'compound' => false,
            'invalid_message' => 'Please enter a valid UUID.',
        ]);

use PHPUnit\Framework\TestCase;
use Symfony\Component\Form\Exception\TransformationFailedException;
use Symfony\Component\Form\Extension\Core\DataTransformer\UuidToStringTransformer;
use Symfony\Component\Uid\Uuid;
use Symfony\Component\Uid\UuidV1;

class UuidToStringTransformerTest extends TestCase
{
    public function testTransform()
    {
        $transformer = new UuidToStringTransformer();

        $this->assertEquals('123e4567-e89b-12d3-a456-426655440000', $transformer->transform(new UuidV1('123e4567-e89b-12d3-a456-426655440000')));
    }

    public function testTransformEmpty()
    {
        $transformer = new UuidToStringTransformer();

        $this->assertNull($transformer->transform(null));
    }