ValidatorDataCollector example

use Symfony\Component\Validator\DataCollector\ValidatorDataCollector;
use Symfony\Component\Validator\Validator\TraceableValidator;
use Symfony\Component\Validator\Validator\ValidatorInterface;

class ValidatorDataCollectorTest extends TestCase
{
    public function testCollectsValidatorCalls()
    {
        $originalValidator = $this->createMock(ValidatorInterface::class);
        $validator = new TraceableValidator($originalValidator);

        $collector = new ValidatorDataCollector($validator);

        $violations = new ConstraintViolationList([
            $this->createMock(ConstraintViolation::class),
            $this->createMock(ConstraintViolation::class),
        ]);
        $originalValidator->method('validate')->willReturn($violations);

        $validator->validate(new \stdClass());

        $collector->lateCollect();