<?php

declare(strict_types=1);

namespace Tests\Feature\FormBuilder\ValidationRules;

use PHPUnit\Framework\TestCase;

/**
 * WS-5b consolidation — static guard that the legacy
 * `validation_rules.unique` JSON fallback has been stripped from
 * `FormValueService`. The is_unique column is the single source of truth.
 *
 * We assert the textual absence rather than a behavioural test: uniqueness
 * enforcement is heavily coupled to the FormValueObserver typed-column
 * write path, submission status, etc. The cheap + high-signal check is
 * "the code no longer references `$rules['unique']`".
 */
final class UniqueJsonFallbackRemovedTest extends TestCase
{
    public function test_form_value_service_no_longer_reads_rules_unique_key(): void
    {
        $source = (string) file_get_contents(
            __DIR__.'/../../../../app/Services/FormBuilder/FormValueService.php',
        );

        $this->assertStringNotContainsString("\$rules['unique']", $source);
        $this->assertStringNotContainsString('$rules["unique"]', $source);
    }
}