3 namespace Drupal\Tests\system\Functional\Theme;
5 use Drupal\Tests\BrowserTestBase;
8 * Tests Twig registry loader.
12 class TwigRegistryLoaderTest extends BrowserTestBase {
19 public static $modules = ['twig_theme_test', 'block'];
22 * @var \Drupal\Core\Template\TwigEnvironment
26 protected function setUp() {
28 \Drupal::service('theme_handler')->install(['test_theme_twig_registry_loader', 'test_theme_twig_registry_loader_theme', 'test_theme_twig_registry_loader_subtheme']);
29 $this->twig = \Drupal::service('twig');
33 * Checks to see if a value is a Twig template.
35 public function assertTwigTemplate($value, $message = '', $group = 'Other') {
36 $this->assertTrue($value instanceof \Twig_Template, $message, $group);
40 * Tests template discovery using the Drupal theme registry.
42 public function testTemplateDiscovery() {
43 $this->assertTwigTemplate($this->twig->resolveTemplate('block.html.twig'), 'Found block.html.twig in block module.');
47 * Tests template extension and includes using the Drupal theme registry.
49 public function testTwigNamespaces() {
50 // Test the module-provided extend and insert templates.
51 $this->drupalGet('twig-theme-test/registry-loader');
52 $this->assertText('This line is from twig_theme_test/templates/twig-registry-loader-test-extend.html.twig');
53 $this->assertText('This line is from twig_theme_test/templates/twig-registry-loader-test-include.html.twig');
55 // Enable a theme that overrides the extend and insert templates to ensure
56 // they are picked up by the registry loader.
57 $this->config('system.theme')
58 ->set('default', 'test_theme_twig_registry_loader')
60 $this->drupalGet('twig-theme-test/registry-loader');
61 $this->assertText('This line is from test_theme_twig_registry_loader/templates/twig-registry-loader-test-extend.html.twig');
62 $this->assertText('This line is from test_theme_twig_registry_loader/templates/twig-registry-loader-test-include.html.twig');
64 // Enable overriding theme that overrides the extend and insert templates
65 // from the base theme.
66 $this->config('system.theme')
67 ->set('default', 'test_theme_twig_registry_loader_theme')
69 $this->drupalGet('twig-theme-test/registry-loader');
70 $this->assertText('This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-extend.html.twig');
71 $this->assertText('This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-include.html.twig');
73 // Enable a subtheme for the theme that doesn't have any overrides to make
74 // sure that templates are being loaded from the first parent which has the
76 $this->config('system.theme')
77 ->set('default', 'test_theme_twig_registry_loader_subtheme')
79 $this->drupalGet('twig-theme-test/registry-loader');
80 $this->assertText('This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-extend.html.twig');
81 $this->assertText('This line is from test_theme_twig_registry_loader_theme/templates/twig-registry-loader-test-include.html.twig');