SystemListTest.php

<?php

namespace Drupal\KernelTests\Core\Theme;

use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\Routing\NullMatcherDumper;
use Drupal\KernelTests\KernelTestBase;

/**
 * Tests system_list() function.
 *
 * In Drupal 8 the system_list() function only lists themes.
 *
 * @group Extension
 * @group legacy
 */
class SystemListTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    public function register(ContainerBuilder $container) {
        parent::register($container);
        // Some test methods involve ModuleHandler operations, which attempt to
        // rebuild and dump routes.
        $container->register('router.dumper', NullMatcherDumper::class);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->installConfig([
            'system',
        ]);
    }
    
    /**
     * Tests installing a theme.
     *
     * @expectedDeprecation system_list() is deprecated in Drupal 8.7.0 and will be removed before Drupal 9.0.0. Use \Drupal::service('theme_handler')->listInfo() instead. See https://www.drupal.org/node/2709919
     * @expectedDeprecation system_list_reset() is deprecated in Drupal 8.7.0 and will be removed before Drupal 9.0.0. There is no direct replacement. Call each \Drupal::service('extension.list.TYPE')->reset() as necessary. See https://www.drupal.org/node/2709919.
     */
    public function testSystemList() {
        // Verifies that no themes are listed by default.
        $this->assertEmpty(system_list('theme'));
        $this->assertEmpty(system_list('filepaths'));
        $this->container
            ->get('theme_installer')
            ->install([
            'test_basetheme',
        ]);
        $themes = system_list('theme');
        $this->assertTrue(isset($themes['test_basetheme']));
        $this->assertEqual($themes['test_basetheme']->getName(), 'test_basetheme');
        $filepaths = system_list('filepaths');
        $this->assertEquals('test_basetheme', $filepaths[0]['name']);
        $this->assertEquals('core/modules/system/tests/themes/test_basetheme/test_basetheme.info.yml', $filepaths[0]['filepath']);
        $this->assertCount(1, $filepaths);
        $this->container
            ->get('theme_installer')
            ->uninstall([
            'test_basetheme',
        ]);
        $this->assertEmpty(system_list('theme'));
        $this->assertEmpty(system_list('filepaths'));
        // Call system_list_reset() to test deprecation and ensure it is not broken.
        system_list_reset();
    }

}