Bic example

use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;

class BicValidatorTest extends ConstraintValidatorTestCase
{
    protected function createValidator(): BicValidator
    {
        return new BicValidator();
    }

    public function testNullIsValid()
    {
        $this->validator->validate(null, new Bic());

        $this->assertNoViolation();
    }

    public function testEmptyStringIsValid()
    {
        $this->validator->validate('', new Bic());

        $this->assertNoViolation();
    }