silverstripe-cms/tests/controller/SilverStripeNavigatorTest.php

<?php

use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem_StageLink;
use SilverStripe\Security\Member;
use SilverStripe\Security\Permission;
use SilverStripe\CMS\Controllers\SilverStripeNavigator;
use SilverStripe\CMS\Controllers\SilverStripeNavigatorItem;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Dev\TestOnly;

/**
 * @package cms
 * @subpackage tests
 */

class SilverStripeNavigatorTest extends SapphireTest
{

    protected static $fixture_file = 'CMSMainTest.yml';

    public function testGetItems()
    {
        $page = $this->objFromFixture('Page', 'page1');
        $navigator = new SilverStripeNavigator($page);

        $items = $navigator->getItems();
        $classes = array_map('get_class', $items->toArray());
        $this->assertContains(
            SilverStripeNavigatorItem_StageLink::class,
            $classes,
            'Adds default classes'
        );

        $this->assertContains(
            'SilverStripeNavigatorTest_TestItem',
            $classes,
            'Autodiscovers new classes'
        );
    }

    public function testCanView()
    {
        $page = $this->objFromFixture('Page', 'page1');
        $admin = $this->objFromFixture(Member::class, 'admin');
        $navigator = new SilverStripeNavigator($page);

        // TODO Shouldn't be necessary but SapphireTest logs in as ADMIN by default
        $this->logInWithPermission('CMS_ACCESS_CMSMain');
        $items = $navigator->getItems();
        $classes = array_map('get_class', $items->toArray());
        $this->assertNotContains('SilverStripeNavigatorTest_ProtectedTestItem', $classes);

        $this->logInWithPermission('ADMIN');
        $items = $navigator->getItems();
        $classes = array_map('get_class', $items->toArray());
        $this->assertContains('SilverStripeNavigatorTest_ProtectedTestItem', $classes);
    }
}

class SilverStripeNavigatorTest_TestItem extends SilverStripeNavigatorItem implements TestOnly
{
    public function getTitle()
    {
        return self::class;
    }
    public function getHTML()
    {
        return null;
    }
}

class SilverStripeNavigatorTest_ProtectedTestItem extends SilverStripeNavigatorItem implements TestOnly
{

    public function getTitle()
    {
        return self::class;
    }

    public function getHTML()
    {
        return null;
    }

    public function canView($member = null)
    {
        if (!$member) {
            $member = Member::currentUser();
        }
        return Permission::checkMember($member, 'ADMIN');
    }
}