You are here

Home » API reference » Drupal 8 » TwigEnvironmentTest.php

class TwigEnvironmentTest in Drupal 8

Same name in this branch
  1. 8 core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php \Drupal\KernelTests\Core\Theme\TwigEnvironmentTest
  2. 8 core/modules/system/tests/src/Functional/Theme/TwigEnvironmentTest.php \Drupal\Tests\system\Functional\Theme\TwigEnvironmentTest
Same name and namespace in other branches
  1. 9 core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php \Drupal\KernelTests\Core\Theme\TwigEnvironmentTest
  2. 10 core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php \Drupal\KernelTests\Core\Theme\TwigEnvironmentTest

Tests the twig environment.

@group Twig

Hierarchy

Expanded class hierarchy of TwigEnvironmentTest

See also

\Drupal\Core\Template\TwigEnvironment

File

core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php, line 19

Namespace

Drupal\KernelTests\Core\Theme
View source 
class TwigEnvironmentTest extends KernelTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = [
    'system',
  ];

  /**
   * Tests inline templates.
   */
  public function testInlineTemplate() {

    /** @var \Drupal\Core\Render\RendererInterface $renderer */
    $renderer = $this->container
      ->get('renderer');

    /** @var \Drupal\Core\Template\TwigEnvironment $environment */
    $environment = \Drupal::service('twig');
    $this
      ->assertEqual($environment
      ->renderInline('test-no-context'), 'test-no-context');
    $this
      ->assertEqual($environment
      ->renderInline('test-with-context {{ llama }}', [
      'llama' => 'muuh',
    ]), 'test-with-context muuh');
    $element = [];
    $unsafe_string = '<script>alert(\'Danger! High voltage!\');</script>';
    $element['test'] = [
      '#type' => 'inline_template',
      '#template' => 'test-with-context <label>{{ unsafe_content }}</label>',
      '#context' => [
        'unsafe_content' => $unsafe_string,
      ],
    ];
    $this
      ->assertEqual($renderer
      ->renderRoot($element), 'test-with-context <label>' . Html::escape($unsafe_string) . '</label>');

    // Enable twig_auto_reload and twig_debug.
    $settings = Settings::getAll();
    $settings['twig_debug'] = TRUE;
    $settings['twig_auto_reload'] = TRUE;
    new Settings($settings);
    $this->container = \Drupal::service('kernel')
      ->rebuildContainer();
    \Drupal::setContainer($this->container);
    $element = [];
    $element['test'] = [
      '#type' => 'inline_template',
      '#template' => 'test-with-context {{ llama }}',
      '#context' => [
        'llama' => 'muuh',
      ],
    ];
    $element_copy = $element;

    // Render it twice so that twig caching is triggered.
    $this
      ->assertEqual($renderer
      ->renderRoot($element), 'test-with-context muuh');
    $this
      ->assertEqual($renderer
      ->renderRoot($element_copy), 'test-with-context muuh');

    // Tests caching of inline templates with long content to ensure the
    // generated cache key can be used as a filename.
    $element = [];
    $element['test'] = [
      '#type' => 'inline_template',
      '#template' => 'Llamas sometimes spit and wrestle with their {{ llama }}. Kittens are soft and fuzzy and they sometimes say {{ kitten }}. Flamingos have long legs and they are usually {{ flamingo }}. Pandas eat bamboo and they are {{ panda }}. Giraffes have long necks and long tongues and they eat {{ giraffe }}.',
      '#context' => [
        'llama' => 'necks',
        'kitten' => 'meow',
        'flamingo' => 'pink',
        'panda' => 'bears',
        'giraffe' => 'leaves',
      ],
    ];
    $expected = 'Llamas sometimes spit and wrestle with their necks. Kittens are soft and fuzzy and they sometimes say meow. Flamingos have long legs and they are usually pink. Pandas eat bamboo and they are bears. Giraffes have long necks and long tongues and they eat leaves.';
    $element_copy = $element;

    // Render it twice so that twig caching is triggered.
    $this
      ->assertEqual($renderer
      ->renderRoot($element), $expected);
    $this
      ->assertEqual($renderer
      ->renderRoot($element_copy), $expected);
    $name = '{# inline_template_start #}' . $element['test']['#template'];
    $prefix = $environment
      ->getTwigCachePrefix();
    $cache = $environment
      ->getCache();
    $class = $environment
      ->getTemplateClass($name);
    $expected = $prefix . '_inline-template_' . substr(Crypt::hashBase64($class), 0, TwigPhpStorageCache::SUFFIX_SUBSTRING_LENGTH);
    $this
      ->assertEqual($expected, $cache
      ->generateKey($name, $class));
  }

  /**
   * Tests that exceptions are thrown when a template is not found.
   */
  public function testTemplateNotFoundException() {

    /** @var \Drupal\Core\Template\TwigEnvironment $environment */
    $environment = \Drupal::service('twig');
    try {
      $environment
        ->loadTemplate('this-template-does-not-exist.html.twig')
        ->render([]);
      $this
        ->fail('Did not throw an exception as expected.');
    } catch (\Twig_Error_Loader $e) {
      $this
        ->assertStringStartsWith('Template "this-template-does-not-exist.html.twig" is not defined', $e
        ->getMessage());
    }
  }

  /**
   * Ensures that templates resolve to the same class name and cache file.
   */
  public function testTemplateClassname() {

    /** @var \Drupal\Core\Template\TwigEnvironment $environment */
    $environment = \Drupal::service('twig');

    // Test using an include template path.
    $name_include = 'container.html.twig';
    $class_include = $environment
      ->getTemplateClass($name_include);
    $key_include = $environment
      ->getCache()
      ->generateKey($name_include, $class_include);

    // Test using a namespaced template path.
    $name_namespaced = '@system/container.html.twig';
    $class_namespaced = $environment
      ->getTemplateClass($name_namespaced);
    $key_namespaced = $environment
      ->getCache()
      ->generateKey($name_namespaced, $class_namespaced);

    // Test using a direct filesystem template path.
    $name_direct = 'core/modules/system/templates/container.html.twig';
    $class_direct = $environment
      ->getTemplateClass($name_direct);
    $key_direct = $environment
      ->getCache()
      ->generateKey($name_direct, $class_direct);

    // All three should be equal for both cases.
    $this
      ->assertEqual($class_include, $class_namespaced);
    $this
      ->assertEqual($class_namespaced, $class_direct);
    $this
      ->assertEqual($key_include, $key_namespaced);
    $this
      ->assertEqual($key_namespaced, $key_direct);
  }

  /**
   * Ensures that cacheFilename() varies by extensions + deployment identifier.
   */
  public function testCacheFilename() {

    /** @var \Drupal\Core\Template\TwigEnvironment $environment */

    // Note: Later we refetch the twig service in order to bypass its internal
    // static cache.
    $environment = \Drupal::service('twig');
    $template_path = 'core/modules/system/templates/container.html.twig';

    // A template basename greater than the constant
    // TwigPhpStorageCache::SUFFIX_SUBSTRING_LENGTH should get truncated.
    $cache = $environment
      ->getCache();
    $long_name = 'core/modules/system/templates/block--system-messages-block.html.twig';
    $this
      ->assertGreaterThan(TwigPhpStorageCache::SUFFIX_SUBSTRING_LENGTH, strlen(basename($long_name)));
    $class = $environment
      ->getTemplateClass($long_name);
    $key = $cache
      ->generateKey($long_name, $class);
    $prefix = $environment
      ->getTwigCachePrefix();

    // The key should consist of the prefix, an underscore, and two strings
    // each truncated to length TwigPhpStorageCache::SUFFIX_SUBSTRING_LENGTH
    // separated by an underscore.
    $expected = strlen($prefix) + 2 + 2 * TwigPhpStorageCache::SUFFIX_SUBSTRING_LENGTH;
    $this
      ->assertEquals($expected, strlen($key));
    $cache = $environment
      ->getCache();
    $class = $environment
      ->getTemplateClass($template_path);
    $original_filename = $cache
      ->generateKey($template_path, $class);
    \Drupal::service('module_installer')
      ->install([
      'twig_extension_test',
    ]);
    $environment = \Drupal::service('twig');
    $cache = $environment
      ->getCache();
    $class = $environment
      ->getTemplateClass($template_path);
    $new_extension_filename = $cache
      ->generateKey($template_path, $class);
    \Drupal::getContainer()
      ->set('twig', NULL);
    $this
      ->assertNotEqual($new_extension_filename, $original_filename);
  }

  /**
   * {@inheritdoc}
   */
  public function register(ContainerBuilder $container) {
    parent::register($container);
    $container
      ->setDefinition('twig_loader__file_system', new Definition('Twig_Loader_Filesystem', [
      [
        sys_get_temp_dir(),
      ],
    ]))
      ->addTag('twig.loader');
  }

  /**
   * Test template invalidation.
   */
  public function testTemplateInvalidation() {
    $template_before = <<<TWIG
<div>Hello before</div>
TWIG;
    $template_after = <<<TWIG
<div>Hello after</div>
TWIG;
    $tempfile = tempnam(sys_get_temp_dir(), '__METHOD__') . '.html.twig';
    file_put_contents($tempfile, $template_before);

    /** @var \Drupal\Core\Template\TwigEnvironment $environment */
    $environment = \Drupal::service('twig');
    $output = $environment
      ->load(basename($tempfile))
      ->render();
    $this
      ->assertEquals($template_before, $output);
    file_put_contents($tempfile, $template_after);
    $output = $environment
      ->load(basename($tempfile))
      ->render();
    $this
      ->assertEquals($template_before, $output);
    $environment
      ->invalidate();

    // Manually change $templateClassPrefix to force a different template
    // classname, as the other class is still loaded. This wouldn't be a problem
    // on a real site where you reload the page.
    $reflection = new \ReflectionClass(\Twig_Environment::class);
    $property_reflection = $reflection
      ->getProperty('templateClassPrefix');
    $property_reflection
      ->setAccessible(TRUE);
    $property_reflection
      ->setValue($environment, 'otherPrefix');
    $output = $environment
      ->load(basename($tempfile))
      ->render();
    $this
      ->assertEquals($template_after, $output);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
AssertContentTrait::$content protected property The current raw content.
AssertContentTrait::$drupalSettings protected property The drupalSettings value from the current raw $content.
AssertContentTrait::$elements protected property The XML structure parsed from the current raw $content. 1
AssertContentTrait::$plainTextContent protected property The plain-text content of raw $content (text nodes).
AssertContentTrait::assertEscaped protected function Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertContentTrait::assertField protected function Asserts that a field exists with the given name or ID.
AssertContentTrait::assertFieldById protected function Asserts that a field exists with the given ID and value.
AssertContentTrait::assertFieldByName protected function Asserts that a field exists with the given name and value.
AssertContentTrait::assertFieldByXPath protected function Asserts that a field exists in the current page by the given XPath.
AssertContentTrait::assertFieldChecked protected function Asserts that a checkbox field in the current page is checked.
AssertContentTrait::assertFieldsByValue protected function Asserts that a field exists in the current page with a given Xpath result.
AssertContentTrait::assertLink protected function Passes if a link with the specified label is found.
AssertContentTrait::assertLinkByHref protected function Passes if a link containing a given href (part) is found.
AssertContentTrait::assertNoDuplicateIds protected function Asserts that each HTML ID is used for just a single element.
AssertContentTrait::assertNoEscaped protected function Passes if the raw text IS NOT found escaped on the loaded page, fail otherwise.
AssertContentTrait::assertNoField protected function Asserts that a field does not exist with the given name or ID.
AssertContentTrait::assertNoFieldById protected function Asserts that a field does not exist with the given ID and value.
AssertContentTrait::assertNoFieldByName protected function Asserts that a field does not exist with the given name and value.
AssertContentTrait::assertNoFieldByXPath protected function Asserts that a field does not exist or its value does not match, by XPath.
AssertContentTrait::assertNoFieldChecked protected function Asserts that a checkbox field in the current page is not checked.
AssertContentTrait::assertNoLink protected function Passes if a link with the specified label is not found.
AssertContentTrait::assertNoLinkByHref protected function Passes if a link containing a given href (part) is not found.
AssertContentTrait::assertNoLinkByHrefInMainRegion protected function Passes if a link containing a given href is not found in the main region.
AssertContentTrait::assertNoOption protected function Asserts that a select option in the current page does not exist.
AssertContentTrait::assertNoOptionSelected protected function Asserts that a select option in the current page is not checked.
AssertContentTrait::assertNoPattern protected function Triggers a pass if the perl regex pattern is not found in raw content.
AssertContentTrait::assertNoRaw protected function Passes if the raw text is NOT found on the loaded page, fail otherwise.
AssertContentTrait::assertNoText protected function Passes if the page (with HTML stripped) does not contains the text.
AssertContentTrait::assertNoTitle protected function Pass if the page title is not the given string.
AssertContentTrait::assertNoUniqueText protected function Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertContentTrait::assertOption protected function Asserts that a select option in the current page exists.
AssertContentTrait::assertOptionByText protected function Asserts that a select option with the visible text exists.
AssertContentTrait::assertOptionSelected protected function Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionSelectedWithDrupalSelector protected function Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionWithDrupalSelector protected function Asserts that a select option in the current page exists.
AssertContentTrait::assertPattern protected function Triggers a pass if the Perl regex pattern is found in the raw content.
AssertContentTrait::assertRaw protected function Passes if the raw text IS found on the loaded page, fail otherwise.
AssertContentTrait::assertText protected function Passes if the page (with HTML stripped) contains the text.
AssertContentTrait::assertTextHelper protected function Helper for assertText and assertNoText.
AssertContentTrait::assertTextPattern protected function Asserts that a Perl regex pattern is found in the plain-text content.
AssertContentTrait::assertThemeOutput protected function Asserts themed output.
AssertContentTrait::assertTitle protected function Pass if the page title is the given string.
AssertContentTrait::assertUniqueText protected function Passes if the text is found ONLY ONCE on the text version of the page.
AssertContentTrait::assertUniqueTextHelper protected function Helper for assertUniqueText and assertNoUniqueText.
AssertContentTrait::buildXPathQuery protected function Builds an XPath query.
AssertContentTrait::constructFieldXpath protected function Helper: Constructs an XPath for the given set of attributes and value.
AssertContentTrait::cssSelect protected function Searches elements using a CSS selector in the raw content.
AssertContentTrait::getAllOptions protected function Get all option elements, including nested options, in a select.
AssertContentTrait::getDrupalSettings protected function Gets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::getRawContent protected function Gets the current raw content.
AssertContentTrait::getSelectedItem protected function Get the selected value from a select field.
AssertContentTrait::getTextContent protected function Retrieves the plain-text content from the current raw content.
AssertContentTrait::getUrl protected function Get the current URL from the cURL handler. 1
AssertContentTrait::parse protected function Parse content returned from curlExec using DOM and SimpleXML.
AssertContentTrait::removeWhiteSpace protected function Removes all white-space between HTML tags from the raw content.
AssertContentTrait::setDrupalSettings protected function Sets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::setRawContent protected function Sets the raw content (e.g. HTML).
AssertContentTrait::xpath protected function Performs an xpath search on the contents of the internal browser.
AssertHelperTrait::castSafeStrings protected static function Casts MarkupInterface objects into strings.
AssertLegacyTrait::assert protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::assertEqual protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertIdentical protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertSame() instead.
AssertLegacyTrait::assertIdenticalObject protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertNotEqual protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotEquals() instead.
AssertLegacyTrait::assertNotIdentical protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotSame() instead.
AssertLegacyTrait::pass protected function Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::verbose protected function
ConfigTestTrait::configImporter protected function Returns a ConfigImporter object to import test configuration.
ConfigTestTrait::copyConfig protected function Copies configuration objects from source storage to target storage.
KernelTestBase::$backupGlobals protected property Back up and restore any global variables that may be changed by tests.
KernelTestBase::$backupStaticAttributes protected property Back up and restore static class properties that may be changed by tests.
KernelTestBase::$backupStaticAttributesBlacklist protected property Contains a few static class properties for performance.
KernelTestBase::$classLoader protected property
KernelTestBase::$configImporter protected property @todo Move into Config test base class. 7
KernelTestBase::$configSchemaCheckerExclusions protected static property An array of config object names that are excluded from schema checking.
KernelTestBase::$container protected property
KernelTestBase::$databasePrefix protected property
KernelTestBase::$preserveGlobalState protected property Do not forward any global state from the parent process to the processes that run the actual tests.
KernelTestBase::$root protected property The app root.
KernelTestBase::$runTestInSeparateProcess protected property Kernel tests are run in separate processes because they allow autoloading of code from extensions. Running the test in a separate process isolates this behavior from other tests. Subclasses should not override this property.
KernelTestBase::$siteDirectory protected property
KernelTestBase::$strictConfigSchema protected property Set to TRUE to strict check all configuration saved. 6
KernelTestBase::$vfsRoot protected property The virtual filesystem root directory.
KernelTestBase::assertPostConditions protected function 1
KernelTestBase::bootEnvironment protected function Bootstraps a basic test environment.
KernelTestBase::bootKernel private function Bootstraps a kernel for a test.
KernelTestBase::config protected function Configuration accessor for tests. Returns non-overridden configuration.
KernelTestBase::disableModules protected function Disables modules for this test.
KernelTestBase::enableModules protected function Enables modules for this test.
KernelTestBase::getConfigSchemaExclusions protected function Gets the config schema exclusions for this test.
KernelTestBase::getDatabaseConnectionInfo protected function Returns the Database connection info to be used for this test. 1
KernelTestBase::getDatabasePrefix public function
KernelTestBase::getExtensionsForModules private function Returns Extension objects for $modules to enable.
KernelTestBase::getModulesToEnable private static function Returns the modules to enable for this test.
KernelTestBase::initFileCache protected function Initializes the FileCache component.
KernelTestBase::installConfig protected function Installs default configuration for a given list of modules.
KernelTestBase::installEntitySchema protected function Installs the storage schema for a specific entity type.
KernelTestBase::installSchema protected function Installs database tables from a module schema definition.
KernelTestBase::isTestInIsolation Deprecated protected function Returns whether the current test method is running in a separate process.
KernelTestBase::prepareTemplate protected function
KernelTestBase::render protected function Renders a render array. 1
KernelTestBase::setInstallProfile protected function Sets the install profile and rebuilds the container to update it.
KernelTestBase::setSetting protected function Sets an in-memory Settings variable.
KernelTestBase::setUp protected function 347
KernelTestBase::setUpBeforeClass public static function 1
KernelTestBase::setUpFilesystem protected function Sets up the filesystem, so things like the file directory. 2
KernelTestBase::stop protected function Stops test execution.
KernelTestBase::tearDown protected function 6
KernelTestBase::tearDownCloseDatabaseConnection public function @after
KernelTestBase::vfsDump protected function Dumps the current state of the virtual filesystem to STDOUT.
KernelTestBase::__get Deprecated public function BC: Automatically resolve former KernelTestBase class properties.
KernelTestBase::__sleep public function Prevents serializing any properties.
PhpunitCompatibilityTrait::getMock Deprecated public function Returns a mock object for the specified class using the available method.
PhpunitCompatibilityTrait::setExpectedException Deprecated public function Compatibility layer for PHPUnit 6 to support PHPUnit 4 code.
RandomGeneratorTrait::$randomGenerator protected property The random generator.
RandomGeneratorTrait::getRandomGenerator protected function Gets the random generator for the utility methods.
RandomGeneratorTrait::randomMachineName protected function Generates a unique random string containing letters and numbers. 1
RandomGeneratorTrait::randomObject public function Generates a random PHP object.
RandomGeneratorTrait::randomString public function Generates a pseudo-random string of ASCII characters of codes 32 to 126.
RandomGeneratorTrait::randomStringValidate public function Callback for random string validation.
StorageCopyTrait::replaceStorageContents protected static function Copy the configuration from one storage to another and remove stale items.
TestRequirementsTrait::checkModuleRequirements private function Checks missing module requirements.
TestRequirementsTrait::checkRequirements protected function Check module requirements for the Drupal use case. 1
TestRequirementsTrait::getDrupalRoot protected static function Returns the Drupal root directory.
TwigEnvironmentTest::$modules public static property Modules to enable. Overrides KernelTestBase::$modules
TwigEnvironmentTest::register public function Registers test-specific services. Overrides KernelTestBase::register
TwigEnvironmentTest::testCacheFilename public function Ensures that cacheFilename() varies by extensions + deployment identifier.
TwigEnvironmentTest::testInlineTemplate public function Tests inline templates.
TwigEnvironmentTest::testTemplateClassname public function Ensures that templates resolve to the same class name and cache file.
TwigEnvironmentTest::testTemplateInvalidation public function Test template invalidation.
TwigEnvironmentTest::testTemplateNotFoundException public function Tests that exceptions are thrown when a template is not found.