silverstripe-framework/tests/php/Forms/GridField/GridField_URLHandlerTest/TestController.php

<?php

namespace SilverStripe\Forms\Tests\GridField\GridField_URLHandlerTest;

use SilverStripe\Control\Controller;
use SilverStripe\Dev\TestOnly;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\Form;
use SilverStripe\Forms\GridField\GridField;
use SilverStripe\Forms\GridField\GridFieldConfig;
use SilverStripe\ORM\ArrayList;

class TestController extends Controller implements TestOnly
{
    public function __construct()
    {
        parent::__construct();
        if (Controller::has_curr()) {
            $this->setRequest(Controller::curr()->getRequest());
        }
    }

    public function Link($action = null)
    {
        return Controller::join_links('GridField_URLHandlerTest_Controller', $action, '/');
    }

    private static $allowed_actions = ['Form'];

    /**
     * @return Form
     */
    public function Form()
    {
        $gridConfig = GridFieldConfig::create();
        $gridConfig->addComponent(new TestComponent());

        $gridData = new ArrayList();
        $gridField = new GridField('Grid', 'My grid', $gridData, $gridConfig);

        return new Form(
            $this,
            'Form',
            new FieldList(
                $gridField
            ),
            new FieldList()
        );
    }
}