function TwigSettingsTest::testTwigCacheOverride

Ensures Twig template cache setting can be overridden.

File

core/modules/system/tests/src/Functional/Theme/TwigSettingsTest.php, line 82

Class

TwigSettingsTest

Tests overriding Twig engine settings via settings.php.

Namespace

Code

public function testTwigCacheOverride() : void {
    $extension = twig_extension();
    $theme_installer = $this->container
        ->get('theme_installer');
    $theme_installer->install([
        'test_theme',
    ]);
    $this->config('system.theme')
        ->set('default', 'test_theme')
        ->save();
    // The registry still works on theme globals, so set them here.
    \Drupal::theme()->setActiveTheme(\Drupal::service('theme.initialization')->getActiveThemeByName('test_theme'));
    // Reset the theme registry, so that the new theme is used.
    $this->container
        ->set('theme.registry', NULL);
    // Load array of Twig templates.
    // reset() is necessary to invalidate caches.
    $registry = $this->container
        ->get('theme.registry');
    $registry->reset();
    $templates = $registry->getRuntime();
    // Get the template filename and the cache filename for
    // theme_test.template_test.html.twig.
    $info = $templates->get('theme_test_template_test');
    $template_filename = $info['path'] . '/' . $info['template'] . $extension;
    $environment = $this->container
        ->get('twig');
    $cache = $environment->getCache();
    $class = $environment->getTemplateClass($template_filename);
    $cache_filename = $cache->generateKey($template_filename, $class);
    // Navigate to the page and make sure the template gets cached.
    $this->drupalGet('theme-test/template-test');
    $this->assertTrue(PhpStorageFactory::get('twig')->exists($cache_filename), 'Cached Twig template found.');
    // Disable the Twig cache and rebuild the service container.
    $parameters = $this->container
        ->getParameter('twig.config');
    $parameters['cache'] = FALSE;
    $this->setContainerParameter('twig.config', $parameters);
    $this->rebuildContainer();
    // This should return false after rebuilding the service container.
    $this->assertFalse($this->container
        ->get('twig')
        ->getCache(), 'Twig environment has caching disabled.');
}