silverstripe-framework/tests/php/ORM/ImagickImageTest.php

<?php

namespace SilverStripe\ORM\Tests;

use SilverStripe\Assets\ImagickBackend;
use SilverStripe\Core\Config\Config;
use SilverStripe\Core\Injector\Injector;

class ImagickImageTest extends ImageTest
{
    public function setUp()
    {
        parent::setUp();

        if (!extension_loaded("imagick")) {
            $this->markTestSkipped("The Imagick extension is not available.");
            return;
        }

        /**
 * @skipUpgrade
*/
        Config::inst()->update(Injector::class, 'Image_Backend', ImagickBackend::class);
    }
}