diff core/modules/system/src/Tests/Theme/ThemeTest.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/system/src/Tests/Theme/ThemeTest.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,320 @@
+<?php
+
+namespace Drupal\system\Tests\Theme;
+
+use Drupal\Component\Serialization\Json;
+use Drupal\simpletest\WebTestBase;
+use Drupal\test_theme\ThemeClass;
+use Symfony\Cmf\Component\Routing\RouteObjectInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Route;
+use Drupal\Component\Render\MarkupInterface;
+
+/**
+ * Tests low-level theme functions.
+ *
+ * @group Theme
+ */
+class ThemeTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['theme_test', 'node'];
+
+  protected function setUp() {
+    parent::setUp();
+    \Drupal::service('theme_handler')->install(['test_theme']);
+  }
+
+  /**
+   * Test attribute merging.
+   *
+   * Render arrays that use a render element and templates (and hence call
+   * template_preprocess()) must ensure the attributes at different occasions
+   * are all merged correctly:
+   *   - $variables['attributes'] as passed in to the theme hook implementation.
+   *   - the render element's #attributes
+   *   - any attributes set in the template's preprocessing function
+   */
+  public function testAttributeMerging() {
+    $theme_test_render_element = [
+      'elements' => [
+        '#attributes' => ['data-foo' => 'bar'],
+      ],
+      'attributes' => [
+        'id' => 'bazinga',
+      ],
+    ];
+    $this->assertThemeOutput('theme_test_render_element', $theme_test_render_element, '<div id="bazinga" data-foo="bar" data-variables-are-preprocessed></div>' . "\n");
+  }
+
+  /**
+   * Test that ThemeManager renders the expected data types.
+   */
+  public function testThemeDataTypes() {
+    // theme_test_false is an implemented theme hook so \Drupal::theme() service
+    // should return a string or an object that implements MarkupInterface,
+    // even though the theme function itself can return anything.
+    $foos = ['null' => NULL, 'false' => FALSE, 'integer' => 1, 'string' => 'foo', 'empty_string' => ''];
+    foreach ($foos as $type => $example) {
+      $output = \Drupal::theme()->render('theme_test_foo', ['foo' => $example]);
+      $this->assertTrue($output instanceof MarkupInterface || is_string($output), format_string('\Drupal::theme() returns an object that implements MarkupInterface or a string for data type @type.', ['@type' => $type]));
+      if ($output instanceof MarkupInterface) {
+        $this->assertIdentical((string) $example, $output->__toString());
+      }
+      elseif (is_string($output)) {
+        $this->assertIdentical($output, '', 'A string will be return when the theme returns an empty string.');
+      }
+    }
+
+    // suggestionnotimplemented is not an implemented theme hook so \Drupal::theme() service
+    // should return FALSE instead of a string.
+    $output = \Drupal::theme()->render(['suggestionnotimplemented'], []);
+    $this->assertIdentical($output, FALSE, '\Drupal::theme() returns FALSE when a hook suggestion is not implemented.');
+  }
+
+  /**
+   * Test function theme_get_suggestions() for SA-CORE-2009-003.
+   */
+  public function testThemeSuggestions() {
+    // Set the front page as something random otherwise the CLI
+    // test runner fails.
+    $this->config('system.site')->set('page.front', '/nobody-home')->save();
+    $args = ['node', '1', 'edit'];
+    $suggestions = theme_get_suggestions($args, 'page');
+    $this->assertEqual($suggestions, ['page__node', 'page__node__%', 'page__node__1', 'page__node__edit'], 'Found expected node edit page suggestions');
+    // Check attack vectors.
+    $args = ['node', '\\1'];
+    $suggestions = theme_get_suggestions($args, 'page');
+    $this->assertEqual($suggestions, ['page__node', 'page__node__%', 'page__node__1'], 'Removed invalid \\ from suggestions');
+    $args = ['node', '1/'];
+    $suggestions = theme_get_suggestions($args, 'page');
+    $this->assertEqual($suggestions, ['page__node', 'page__node__%', 'page__node__1'], 'Removed invalid / from suggestions');
+    $args = ['node', "1\0"];
+    $suggestions = theme_get_suggestions($args, 'page');
+    $this->assertEqual($suggestions, ['page__node', 'page__node__%', 'page__node__1'], 'Removed invalid \\0 from suggestions');
+    // Define path with hyphens to be used to generate suggestions.
+    $args = ['node', '1', 'hyphen-path'];
+    $result = ['page__node', 'page__node__%', 'page__node__1', 'page__node__hyphen_path'];
+    $suggestions = theme_get_suggestions($args, 'page');
+    $this->assertEqual($suggestions, $result, 'Found expected page suggestions for paths containing hyphens.');
+  }
+
+  /**
+   * Ensures preprocess functions run even for suggestion implementations.
+   *
+   * The theme hook used by this test has its base preprocess function in a
+   * separate file, so this test also ensures that that file is correctly loaded
+   * when needed.
+   */
+  public function testPreprocessForSuggestions() {
+    // Test with both an unprimed and primed theme registry.
+    drupal_theme_rebuild();
+    for ($i = 0; $i < 2; $i++) {
+      $this->drupalGet('theme-test/suggestion');
+      $this->assertText('Theme hook implementor=test_theme_theme_test__suggestion(). Foo=template_preprocess_theme_test', 'Theme hook suggestion ran with data available from a preprocess function for the base hook.');
+    }
+  }
+
+  /**
+   * Tests the priority of some theme negotiators.
+   */
+  public function testNegotiatorPriorities() {
+    $this->drupalGet('theme-test/priority');
+
+    // Ensure that the custom theme negotiator was not able to set the theme.
+
+    $this->assertNoText('Theme hook implementor=test_theme_theme_test__suggestion(). Foo=template_preprocess_theme_test', 'Theme hook suggestion ran with data available from a preprocess function for the base hook.');
+  }
+
+  /**
+   * Ensures that non-HTML requests never initialize themes.
+   */
+  public function testThemeOnNonHtmlRequest() {
+    $this->drupalGet('theme-test/non-html');
+    $json = Json::decode($this->getRawContent());
+    $this->assertFalse($json['theme_initialized']);
+  }
+
+  /**
+   * Ensure page-front template suggestion is added when on front page.
+   */
+  public function testFrontPageThemeSuggestion() {
+    // Set the current route to user.login because theme_get_suggestions() will
+    // query it to see if we are on the front page.
+    $request = Request::create('/user/login');
+    $request->attributes->set(RouteObjectInterface::ROUTE_NAME, 'user.login');
+    $request->attributes->set(RouteObjectInterface::ROUTE_OBJECT, new Route('/user/login'));
+    \Drupal::requestStack()->push($request);
+    $this->config('system.site')->set('page.front', '/user/login')->save();
+    $suggestions = theme_get_suggestions(['user', 'login'], 'page');
+    // Set it back to not annoy the batch runner.
+    \Drupal::requestStack()->pop();
+    $this->assertTrue(in_array('page__front', $suggestions), 'Front page template was suggested.');
+  }
+
+  /**
+   * Ensures a theme's .info.yml file is able to override a module CSS file from being added to the page.
+   *
+   * @see test_theme.info.yml
+   */
+  public function testCSSOverride() {
+    // Reuse the same page as in testPreprocessForSuggestions(). We're testing
+    // what is output to the HTML HEAD based on what is in a theme's .info.yml
+    // file, so it doesn't matter what page we get, as long as it is themed with
+    // the test theme. First we test with CSS aggregation disabled.
+    $config = $this->config('system.performance');
+    $config->set('css.preprocess', 0);
+    $config->save();
+    $this->drupalGet('theme-test/suggestion');
+    $this->assertNoText('js.module.css', 'The theme\'s .info.yml file is able to override a module CSS file from being added to the page.');
+
+    // Also test with aggregation enabled, simply ensuring no PHP errors are
+    // triggered during drupal_build_css_cache() when a source file doesn't
+    // exist. Then allow remaining tests to continue with aggregation disabled
+    // by default.
+    $config->set('css.preprocess', 1);
+    $config->save();
+    $this->drupalGet('theme-test/suggestion');
+    $config->set('css.preprocess', 0);
+    $config->save();
+  }
+
+  /**
+   * Ensures a themes template is overridable based on the 'template' filename.
+   */
+  public function testTemplateOverride() {
+    $this->config('system.theme')
+      ->set('default', 'test_theme')
+      ->save();
+    $this->drupalGet('theme-test/template-test');
+    $this->assertText('Success: Template overridden.', 'Template overridden by defined \'template\' filename.');
+  }
+
+  /**
+   * Ensures a theme template can override a theme function.
+   */
+  public function testFunctionOverride() {
+    $this->drupalGet('theme-test/function-template-overridden');
+    $this->assertText('Success: Template overrides theme function.', 'Theme function overridden by test_theme template.');
+  }
+
+  /**
+   * Test the listInfo() function.
+   */
+  public function testListThemes() {
+    $theme_handler = $this->container->get('theme_handler');
+    $theme_handler->install(['test_subtheme']);
+    $themes = $theme_handler->listInfo();
+
+    // Check if ThemeHandlerInterface::listInfo() retrieves enabled themes.
+    $this->assertIdentical(1, $themes['test_theme']->status, 'Installed theme detected');
+
+    // Check if ThemeHandlerInterface::listInfo() returns disabled themes.
+    // Check for base theme and subtheme lists.
+    $base_theme_list = ['test_basetheme' => 'Theme test base theme'];
+    $sub_theme_list = ['test_subsubtheme' => 'Theme test subsubtheme', 'test_subtheme' => 'Theme test subtheme'];
+
+    $this->assertIdentical($themes['test_basetheme']->sub_themes, $sub_theme_list, 'Base theme\'s object includes list of subthemes.');
+    $this->assertIdentical($themes['test_subtheme']->base_themes, $base_theme_list, 'Subtheme\'s object includes list of base themes.');
+    // Check for theme engine in subtheme.
+    $this->assertIdentical($themes['test_subtheme']->engine, 'twig', 'Subtheme\'s object includes the theme engine.');
+    // Check for theme engine prefix.
+    $this->assertIdentical($themes['test_basetheme']->prefix, 'twig', 'Base theme\'s object includes the theme engine prefix.');
+    $this->assertIdentical($themes['test_subtheme']->prefix, 'twig', 'Subtheme\'s object includes the theme engine prefix.');
+  }
+
+  /**
+   * Tests child element rendering for 'render element' theme hooks.
+   */
+  public function testDrupalRenderChildren() {
+    $element = [
+      '#theme' => 'theme_test_render_element_children',
+      'child' => [
+        '#markup' => 'Foo',
+      ],
+    ];
+    $this->assertThemeOutput('theme_test_render_element_children', $element, 'Foo', 'drupal_render() avoids #theme recursion loop when rendering a render element.');
+
+    $element = [
+      '#theme_wrappers' => ['theme_test_render_element_children'],
+      'child' => [
+        '#markup' => 'Foo',
+      ],
+    ];
+    $this->assertThemeOutput('theme_test_render_element_children', $element, 'Foo', 'drupal_render() avoids #theme_wrappers recursion loop when rendering a render element.');
+  }
+
+  /**
+   * Tests theme can provide classes.
+   */
+  public function testClassLoading() {
+    new ThemeClass();
+  }
+
+  /**
+   * Tests drupal_find_theme_templates().
+   */
+  public function testFindThemeTemplates() {
+    $registry = $this->container->get('theme.registry')->get();
+    $templates = drupal_find_theme_templates($registry, '.html.twig', drupal_get_path('theme', 'test_theme'));
+    $this->assertEqual($templates['node__1']['template'], 'node--1', 'Template node--1.tpl.twig was found in test_theme.');
+  }
+
+  /**
+   * Tests that the page variable is not prematurely flattened.
+   *
+   * Some modules check the page array in template_preprocess_html(), so we
+   * ensure that it has not been rendered prematurely.
+   */
+  public function testPreprocessHtml() {
+    $this->drupalGet('');
+    $attributes = $this->xpath('/html/body[@theme_test_page_variable="Page variable is an array."]');
+    $this->assertTrue(count($attributes) == 1, 'In template_preprocess_html(), the page variable is still an array (not rendered yet).');
+    $this->assertText('theme test page bottom markup', 'Modules are able to set the page bottom region.');
+  }
+
+  /**
+   * Tests that region attributes can be manipulated via preprocess functions.
+   */
+  public function testRegionClass() {
+    \Drupal::service('module_installer')->install(['block', 'theme_region_test']);
+
+    // Place a block.
+    $this->drupalPlaceBlock('system_main_block');
+    $this->drupalGet('');
+    $elements = $this->cssSelect(".region-sidebar-first.new_class");
+    $this->assertEqual(count($elements), 1, 'New class found.');
+  }
+
+  /**
+   * Ensures suggestion preprocess functions run for default implementations.
+   *
+   * The theme hook used by this test has its base preprocess function in a
+   * separate file, so this test also ensures that that file is correctly loaded
+   * when needed.
+   */
+  public function testSuggestionPreprocessForDefaults() {
+    $this->config('system.theme')->set('default', 'test_theme')->save();
+    // Test with both an unprimed and primed theme registry.
+    drupal_theme_rebuild();
+    for ($i = 0; $i < 2; $i++) {
+      $this->drupalGet('theme-test/preprocess-suggestions');
+      $items = $this->cssSelect('.suggestion');
+      $expected_values = [
+        'Suggestion',
+        'Kitten',
+        'Monkey',
+        'Kitten',
+        'Flamingo',
+      ];
+      foreach ($expected_values as $key => $value) {
+        $this->assertEqual((string) $value, $items[$key]);
+      }
+    }
+  }
+
+}