function TwigEnvironmentTest::testTwigFilePrefixChange
Same name in other branches
- 10 core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php \Drupal\KernelTests\Core\Theme\TwigEnvironmentTest::testTwigFilePrefixChange()
- 11.x core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php \Drupal\KernelTests\Core\Theme\TwigEnvironmentTest::testTwigFilePrefixChange()
Test twig file prefix change.
File
-
core/
tests/ Drupal/ KernelTests/ Core/ Theme/ TwigEnvironmentTest.php, line 236
Class
- TwigEnvironmentTest
- Tests the twig environment.
Namespace
Drupal\KernelTests\Core\ThemeCode
public function testTwigFilePrefixChange() {
/** @var \Drupal\Core\Template\TwigEnvironment $environment */
$environment = \Drupal::service('twig');
$cache_prefixes = [];
$cache_filenames = [];
// Assume this is the service container of webserver A.
$container_a = $this->container;
$template_name = 'core/modules/system/templates/container.html.twig';
// Request 1 handled by webserver A.
$cache_prefixes[] = \Drupal::state()->get(TwigEnvironment::CACHE_PREFIX_METADATA_KEY)['twig_cache_prefix'];
$cache_filenames[] = $environment->getCache()
->generateKey($template_name, $environment->getTemplateClass($template_name));
// Assume this is the service container of webserver B.
// Assume that the files on the webserver B have a different mtime than
// webserver A.
touch('core/lib/Drupal/Core/Template/TwigExtension.php');
clearstatcache(TRUE, 'core/lib/Drupal/Core/Template/TwigExtension.php');
$container_b = \Drupal::service('kernel')->rebuildContainer();
// Request 2 handled by webserver B.
\Drupal::setContainer($container_b);
$environment = \Drupal::service('twig');
$cache_prefixes[] = \Drupal::state()->get(TwigEnvironment::CACHE_PREFIX_METADATA_KEY)['twig_cache_prefix'];
$cache_filenames[] = $environment->getCache()
->generateKey($template_name, $environment->getTemplateClass($template_name));
// Request 3 handled by webserver A.
\Drupal::setContainer($container_a);
$container = \Drupal::getContainer();
// Emulate twig service reconstruct on new request.
$container->set('twig', NULL);
$environment = $container->get('twig');
$cache_prefixes[] = \Drupal::state()->get(TwigEnvironment::CACHE_PREFIX_METADATA_KEY)['twig_cache_prefix'];
$cache_filenames[] = $environment->getCache()
->generateKey($template_name, $environment->getTemplateClass($template_name));
// Request 4 handled by webserver B.
\Drupal::setContainer($container_b);
$container = \Drupal::getContainer();
// Emulate twig service reconstruct on new request.
$container->set('twig', NULL);
$environment = $container->get('twig');
$cache_prefixes[] = \Drupal::state()->get(TwigEnvironment::CACHE_PREFIX_METADATA_KEY)['twig_cache_prefix'];
$cache_filenames[] = $environment->getCache()
->generateKey($template_name, $environment->getTemplateClass($template_name));
// The cache prefix should not have been changed, as this is stored in
// state and thus shared between all (web)servers.
$this->assertEquals(count(array_unique($cache_prefixes)), 1);
// This also applies to twig's file cache resulting in an unlimited growth
// of the cache storage directory.
$this->assertEquals(count(array_unique($cache_filenames)), 1);
}
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