silverstripe-cms/tests/controller/ContentControllerPermissionsTest.php

<?php

use SilverStripe\Versioned\Versioned;
use SilverStripe\Control\HTTPResponse_Exception;
use SilverStripe\Core\Config\Config;
use SilverStripe\Dev\FunctionalTest;

/**
 * @package cms
 * @subpackage tests
 */
class ContentControllerPermissionsTest extends FunctionalTest
{

    protected $usesDatabase = true;

    protected $autoFollowRedirection = false;

    public function testCanViewStage()
    {
        // Create a new page
        $page = new Page();
        $page->URLSegment = 'testpage';
        $page->write();
        $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);

        // Add a stage-only version
        $page->Content = "Version2";
        $page->write();

        $response = $this->get('/testpage');
        $this->assertEquals($response->getStatusCode(), 200, "Doesn't require login for implicit live stage");

        $response = $this->get('/testpage/?stage=Live');
        $this->assertEquals($response->getStatusCode(), 200, "Doesn't require login for explicit live stage");

        try {
            $response = $this->get('/testpage/?stage=Stage');
        } catch (HTTPResponse_Exception $responseException) {
            $response = $responseException->getResponse();
        }
        // should redirect to login
        $this->assertEquals($response->getStatusCode(), 302, 'Redirects to login page when not logged in for draft stage');
        $this->assertContains(
            Config::inst()->get('SilverStripe\\Security\\Security', 'login_url'),
            $response->getHeader('Location')
        );

        $this->logInWithPermission('CMS_ACCESS_CMSMain');

        $response = $this->get('/testpage/?stage=Stage');
        $this->assertEquals($response->getStatusCode(), 200, 'Doesnt redirect to login, but shows page for authenticated user');
    }
}