ClassLoaderTest.php

<?php

namespace Drupal\Tests\Core\ClassLoader;

use Composer\Autoload\ClassLoader;
use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Tests\UnitTestCase;

/**
 * @group ClassLoader
 * @group legacy
 * @runTestsInSeparateProcesses
 */
class ClassLoaderTest extends UnitTestCase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $container = new ContainerBuilder();
        $container->set('app.root', $this->root);
        $class_loader = $this->prophesize(ClassLoader::class);
        $class_loader->addPsr4('Drupal\\foo\\', $this->root . '/modules/bar/src')
            ->shouldBeCalled();
        $container->set('class_loader', $class_loader->reveal());
        \Drupal::setContainer($container);
    }
    
    /**
     * @expectedDeprecation drupal_classloader_register() is deprecated in Drupal 8.8.0 and will be removed before Drupal 9.0.0. Use the method ::addPsr4() of the class_loader service to register the namespace. See https://www.drupal.org/node/3035275.
     * @see drupal_classloader_register()
     */
    public function testDrupalClassloadeRegisterDeprecation() {
        include_once $this->root . '/core/includes/bootstrap.inc';
        drupal_classloader_register('foo', 'modules/bar');
    }
    
    /**
     * @expectedDeprecation system_register() is deprecated in Drupal 8.8.0 and will be removed before Drupal 9.0.0. There is no replacement for this function. To achieve the same functionality use this snippet: $path = \Drupal::service("extension.list.$type")->getPath($name); \Drupal::service('class_loader')->addPsr4('Drupal\\' . $name . '\\', \Drupal::root() . '/' . $path . '/src'); See https://www.drupal.org/node/3035275.
     * @see system_register()
     */
    public function testSystemRegisterDeprecation() {
        include_once $this->root . '/core/includes/module.inc';
        system_register('module', 'foo', 'modules/bar/foo.module');
    }

}