ServiceDeprecationTest.php

<?php

namespace Drupal\FunctionalTests\Core\Container;

use Drupal\Tests\BrowserTestBase;

/**
 * Test whether deprecation notices are triggered via \Drupal::service().
 *
 * Note: this test must be a BrowserTestBase so the container is properly
 * compiled. The container in KernelTestBase tests is always an instance of
 * \Drupal\Core\DependencyInjection\ContainerBuilder.
 *
 * @group Container
 * @group legacy
 *
 * @coversDefaultClass \Drupal\Component\DependencyInjection\Container
 */
class ServiceDeprecationTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'deprecation_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * @covers ::get
     */
    public function testGetDeprecated() {
        $this->expectDeprecation('The "deprecation_test.service" service is deprecated in drupal:9.0.0 and is removed from drupal:20.0.0. This is a test.');
        $this->expectDeprecation('The "deprecation_test.alias" alias is deprecated in drupal:9.0.0 and is removed from drupal:20.0.0. This is a test.');
        \Drupal::service('deprecation_test.service');
        \Drupal::service('deprecation_test.alias');
    }

}