Updated Drupal to 8.6. This goes with the following updates because it's possible...

[yaffs-website] / web / core / modules / system / tests / src / Kernel / Theme / TwigNamespaceTest.php

diff --git a/web/core/modules/system/tests/src/Kernel/Theme/TwigNamespaceTest.php b/web/core/modules/system/tests/src/Kernel/Theme/TwigNamespaceTest.php
new file mode 100644 (file)
index 0000000..4ffd255
--- /dev/null
+++ b/web/core/modules/system/tests/src/Kernel/Theme/TwigNamespaceTest.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Drupal\Tests\system\Kernel\Theme;
+
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests Twig namespaces.
+ *
+ * @group Theme
+ */
+class TwigNamespaceTest extends KernelTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['twig_theme_test', 'twig_namespace_a', 'twig_namespace_b', 'node'];
+
+  /**
+   * @var \Drupal\Core\Template\TwigEnvironment
+   */
+  protected $twig;
+
+  protected function setUp() {
+    parent::setUp();
+    \Drupal::service('theme_handler')->install(['test_theme', 'bartik']);
+    $this->twig = \Drupal::service('twig');
+  }
+
+  /**
+   * Checks to see if a value is a twig template.
+   */
+  public function assertTwigTemplate($value, $message = '', $group = 'Other') {
+    $this->assertTrue($value instanceof \Twig_Template, $message, $group);
+  }
+
+  /**
+   * Tests template discovery using namespaces.
+   */
+  public function testTemplateDiscovery() {
+    // Tests resolving namespaced templates in modules.
+    $this->assertTwigTemplate($this->twig->resolveTemplate('@node/node.html.twig'), 'Found node.html.twig in node module.');
+
+    // Tests resolving namespaced templates in themes.
+    $this->assertTwigTemplate($this->twig->resolveTemplate('@bartik/page.html.twig'), 'Found page.html.twig in Bartik theme.');
+  }
+
+  /**
+   * Tests template extension and includes using namespaces.
+   */
+  public function testTwigNamespaces() {
+    // Test twig @extends and @include in template files.
+    $test = ['#theme' => 'twig_namespace_test'];
+    $this->setRawContent(\Drupal::service('renderer')->renderRoot($test));
+
+    $this->assertText('This line is from twig_namespace_a/templates/test.html.twig');
+    $this->assertText('This line is from twig_namespace_b/templates/test.html.twig');
+  }
+
+}