UserRolesPermissionsTest.php

<?php

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

use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\user\Traits\UserCreationTrait;

/**
 * Test case for getting permissions from user roles.
 *
 * @group Session
 */
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'));
    }

}