Vichuploaderbundle: Assert not work

[seddighi78]

I'm using assert in my entity:

     /**
     * @ORM\Column(type="text", nullable=true)
     */
    private $picture;

    /**
     * @Vich\UploadableField(mapping="user.picture", fileNameProperty="picture")
     *
     * @Assert\Image(maxSize="1M")
     */
    private $pictureFile;

    public function getPicture(): ?string
    {
        return $this->picture;
    }

    public function setPicture(?string $picture): self
    {
        $this->picture = $picture;

        return $this;
    }

    public function getPictureFile()
    {
        return $this->pictureFile;
    }

    public function setPictureFile($pictureFile): void
    {
        $this->pictureFile = $pictureFile;

        if(null !== $pictureFile) {
            $this->setUpdatedAtValue();
        }
    }

and my controller is:

        $form = $this->createForm(UserType::class, $this->getUser());
        $form->handleRequest($request);

        if($form->isSubmitted()){
            if($form->isValid()){
                $this->getUser()->setIsRegister(true);

                $em = $this->getDoctrine()->getManager();
                $em->flush();

                return $this->redirectToRoute('app_profile_edit');
            }
        }

my form field:

->add('pictureFile', VichImageType::class, ['required' => false, 'download_label' => false, 'image_uri' => false])

but the assert not worked and file woll uploaded without any errors.

[garak]

Validation is not part of this bundle

[seddighi78]

Could you please say to me how to validate my image mime type or size and etc. ?

[garak]

You can find all informations you need on documentation

[seddighi78]

worked when I add it to the form:
->add('pictureFile', VichImageType::class, ['required' => false, 'download_label' => false, 'image_uri' => false, 'constraints' => [new Image(['maxSize' => '2M'])]])