namespace Symfony\Component\Validator\Tests\Constraints;
use Symfony\Component\Validator\Constraints\IsTrue;
use Symfony\Component\Validator\Constraints\IsTrueValidator;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
class IsTrueValidatorTest extends ConstraintValidatorTestCase
{ protected function createValidator(): IsTrueValidator
{ return new IsTrueValidator();
} public function testNullIsValid() { $this->validator->
validate(null,
new IsTrue());
$this->
assertNoViolation();
} public function testTrueIsValid() {