ElementsAccessTest.php

<?php

namespace Drupal\Tests\system\Functional\Form;

use Drupal\Tests\BrowserTestBase;

/**
 * Tests access control for form elements.
 *
 * @group Form
 */
class ElementsAccessTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'form_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Ensures that child values are still processed when #access = FALSE.
     */
    public function testAccessFalse() {
        $this->drupalPostForm('form_test/vertical-tabs-access', NULL, t('Submit'));
        $this->assertNoText(t('This checkbox inside a vertical tab does not have its default value.'));
        $this->assertNoText(t('This textfield inside a vertical tab does not have its default value.'));
        $this->assertNoText(t('This checkbox inside a fieldset does not have its default value.'));
        $this->assertNoText(t('This checkbox inside a container does not have its default value.'));
        $this->assertNoText(t('This checkbox inside a nested container does not have its default value.'));
        $this->assertNoText(t('This checkbox inside a vertical tab whose fieldset access is allowed does not have its default value.'));
        $this->assertText(t('The form submitted correctly.'));
    }

}