UserRolesPermissionsTest.php

<?php

declare (strict_types=1);
namespace Drupal\KernelTests\Core\Session;

use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\user\Traits\UserCreationTrait;
use PHPUnit\Framework\Attributes\Group;

/**
 * Test case for getting permissions from user roles.
 */
class UserRolesPermissionsTest extends KernelTestBase {
  use UserCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'system',
    'user',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('user');
  }
  
  /**
   * Tests that assigning a role grants that role's permissions.
   */
  public function testPermissionChange() : void {
    // Create two accounts to avoid dealing with user 1.
    $this->createUser();
    $account = $this->createUser();
    $this->assertFalse($account->hasPermission('administer modules'));
    $account->addRole($this->createRole([
      'administer modules',
    ]))
      ->save();
    $this->assertTrue($account->hasPermission('administer modules'));
  }

}