Symfony version(s) affected

6.2

Description

I'm using the standalone symfony/validator package, without Symfony. Since I updated from PHPUnit 9 to PHPUnit 10, the following warnings were displayed:

Since symfony/validator 6.2: The "loose" mode is deprecated. The default mode will be changed to "html5" in 7.0.

How to reproduce

Here is a minimal example (TestCase) to reproduce the issue:

<?php

namespace App\Test;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Validator\Constraints\Email;
use Symfony\Component\Validator\Validation;

class ValidatorTest extends TestCase
{
    public function test1()
    {
        $validator = Validation::createValidator();
        $violations = $validator->validate('user@example.com', [
            new Email(),
        ]);

        $this->assertEmpty($violations);
    }

    public function test2()
    {
        $validator = Validation::createValidator();
        $violations = $validator->validate('user@example.com', [
            new Email(null, null, Email::VALIDATION_MODE_HTML5),
        ]);

        $this->assertEmpty($violations);
    }
}

The second test case still triggers the same deprecation warning in PHPUnit 10, even if I pass the validation mode explicitly.

To display the deprecation details, I'm using the --display-deprecations as parameter, e.g.

phpunit --configuration phpunit.xml --do-not-cache-result --colors=always --display-deprecations

Possible Solution

I figured out that the ConstraintValidatorFactory creates an array of Constraint using this syntax:

return $this->validators[$name] ??= new $class();

So when the class is Symfony\Component\Validator\Constraints\EmailValidator, then it creates an object of the EmailValidator without passing any constructor parameters. This means the default Email::VALIDATION_MODE_LOOSE value will be used instead of the given Email::VALIDATION_MODE_HTML5 value.

• https://github.com/symfony/validator/blob/6.2/ConstraintValidatorFactory.php#L40
• https://github.com/symfony/validator/blob/6.2/Constraints/EmailValidator.php#L40
• https://github.com/symfony/validator/blob/6.2/Constraints/EmailValidator.php#L47

I have no idea how to fix this.

Additional Context

No response