TimezoneResolverTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\system\Kernel;

use Drupal\KernelTests\KernelTestBase;
use Drupal\Tests\user\Traits\UserCreationTrait;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\HttpKernel\HttpKernelInterface;

/**
 * @coversDefaultClass \Drupal\system\TimeZoneResolver
 * @group system
 */
class TimezoneResolverTest extends KernelTestBase {
  use UserCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'system',
    'user',
  ];
  
  /**
   * Tests time zone resolution.
   */
  public function testGetTimeZone() : void {
    $this->installEntitySchema('user');
    $this->installConfig([
      'system',
    ]);
    // Check the default test timezone.
    $this->assertEquals('Australia/Sydney', date_default_timezone_get());
    // Test the configured system timezone.
    $configFactory = $this->container
      ->get('config.factory');
    $timeZoneConfig = $configFactory->getEditable('system.date');
    $timeZoneConfig->set('timezone.default', 'Australia/Adelaide');
    $timeZoneConfig->save();
    $eventDispatcher = $this->container
      ->get('event_dispatcher');
    $kernel = $this->container
      ->get('kernel');
    $eventDispatcher->dispatch(new RequestEvent($kernel, Request::create('http://www.example.com'), HttpKernelInterface::MAIN_REQUEST));
    $this->assertEquals('Australia/Adelaide', date_default_timezone_get());
    $user = $this->createUser([]);
    $user->set('timezone', 'Australia/Lord_Howe');
    $user->save();
    $this->setCurrentUser($user);
    $this->assertEquals('Australia/Lord_Howe', date_default_timezone_get());
  }

}