class UserPermissionsTest

class UserPermissionsTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * User with admin privileges.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * User's role ID.
     *
     * @var string
     */
    protected $rid;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->adminUser = $this->drupalCreateUser([
            'administer permissions',
        ]);
        // Find the new role ID.
        $all_rids = $this->adminUser
            ->getRoles();
        unset($all_rids[array_search(RoleInterface::AUTHENTICATED_ID, $all_rids)]);
        $this->rid = reset($all_rids);
    }
    
    /**
     * Tests the dummy checkboxes added to the permissions page.
     */
    public function testPermissionCheckboxes() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/people/permissions');
        $page = $this->getSession()
            ->getPage();
        $wrapper = $page->find('css', '.form-item-' . $this->rid . '-administer-modules');
        $real_checkbox = $wrapper->find('css', '.real-checkbox');
        $dummy_checkbox = $wrapper->find('css', '.dummy-checkbox');
        // The real per-role checkbox is visible and unchecked, the dummy copy is
        // invisible.
        $this->assertTrue($real_checkbox->isVisible());
        $this->assertFalse($real_checkbox->isChecked());
        $this->assertFalse($dummy_checkbox->isVisible());
        // Enable the permission for all authenticated users.
        $page->findField('authenticated[administer modules]')
            ->click();
        // The real and dummy checkboxes switch visibility and the dummy is now both
        // checked and disabled.
        $this->assertFalse($real_checkbox->isVisible());
        $this->assertTrue($dummy_checkbox->isVisible());
        $this->assertTrue($dummy_checkbox->isChecked());
        $this->assertTrue($dummy_checkbox->hasAttribute('disabled'));
    }

}