ConfigDraggableListBuilderTest.php

<?php

namespace Drupal\Tests\config\Functional;

use Drupal\Tests\BrowserTestBase;
use Drupal\user\Entity\Role;

/**
 * Tests draggable list builder.
 *
 * @group config
 */
class ConfigDraggableListBuilderTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'config_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Test draggable lists.
     */
    public function testDraggableList() {
        $this->drupalLogin($this->drupalCreateUser([
            'administer permissions',
        ]));
        // Create more than 50 roles.
        for ($i = 0; $i < 51; $i++) {
            $role = Role::create([
                'id' => 'role_' . $i,
                'label' => "Role {$i}",
            ]);
            $role->save();
        }
        // Navigate to Roles page
        $this->drupalGet('admin/people/roles');
        // Test for the page title.
        $this->assertSession()
            ->titleEquals('Roles | Drupal');
        // Count the number of rows in table.
        $rows = $this->xpath('//form[@class="user-admin-roles-form"]/table/tbody/tr');
        $this->assertGreaterThan(50, count($rows));
        for ($i = 0; $i < 51; $i++) {
            $this->assertSession()
                ->pageTextContains("Role {$i}");
        }
    }

}