Symfony custom Constrait Validate for entity

I use symfony 2.8 and I have some entity and I need validate this entity by some condition I create constrait ContainsInvValidator and call validate service in action and validate entity but when debugged I did not entered in ContainsInvValidator how to correct use custom validate ?

this is my ContainsInvValidator

namespace AppBundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

class ContainsInvValidator extends ConstraintValidator
{
public function validate($entity, Constraint $constraint)
{
    if (!$entity->getInvoiceNumber()) {
        $this->context->buildViolation($constraint->message)
            ->atPath('foo')
            ->addViolation();
    }

    if (!$entity->getReference()) {
        $this->context->buildViolation($constraint->message)
            ->atPath('foo')
            ->addViolation();
    }

    if (!$entity->getInvoiceDate()) {
        $this->context->buildViolation($constraint->message)
            ->atPath('foo')
            ->addViolation();
    }
}
}

and ContainsInv:

namespace AppBundle\Validator\Constraints;

use Symfony\Component\Validator\Constraint;

/**
* @Annotation
*/
class ContainsInv extends Constraint
{
    public $message = 'The string "{{ string }}" no valid.';
}

add config:

services:
app.contains_test_check_validator:
    class: AppBundle\Validator\Constraints\ContainsInv
    tags:
        - { name: validator.constraint_validator }

and my entity class for which I create custom validator

/**
 * InboundInvoice
 * @ContainsInv(groups={"test_check"})
  */
class InboundInvoice
{

and then in my action

    public function handleInvoiceStatusAction(Request $request, InboundInvoice $invoice)
{
    $resultHandling = $invoice->changedStatus();
    $errors = $this->get('validator')->validate($invoice, [], ['test_check']);

and in variables errors I have

‌Symfony\Component\Validator\ConstraintViolationList::__set_state(array(
   'violations' => 
  array (
  ),

))