class RouteCachingLanguageTest

class RouteCachingLanguageTest extends BrowserTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'path',
    'node',
    'content_translation',
    'link',
    'block',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * A user with permissions to administer content types.
   *
   * @var \Drupal\user\UserInterface
   */
  protected $webUser;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->createContentType([
      'type' => 'page',
    ]);
    $this->drupalPlaceBlock('local_tasks_block');
    $this->drupalPlaceBlock('page_title_block');
    $permissions = [
      'access administration pages',
      'administer content translation',
      'administer content types',
      'administer languages',
      'administer url aliases',
      'create content translations',
      'create page content',
      'create url aliases',
      'edit any page content',
      'translate any entity',
    ];
    // Create and log in user.
    $this->webUser = $this->drupalCreateUser($permissions);
    $this->drupalLogin($this->webUser);
    // Enable French language.
    ConfigurableLanguage::createFromLangcode('fr')->save();
    // Enable translation for page node.
    $edit = [
      'entity_types[node]' => 1,
      'settings[node][page][translatable]' => 1,
      'settings[node][page][fields][path]' => 1,
      'settings[node][page][fields][body]' => 1,
      'settings[node][page][settings][language][language_alterable]' => 1,
    ];
    $this->drupalGet('admin/config/regional/content-language');
    $this->submitForm($edit, 'Save configuration');
    // Create a field with settings to validate.
    $field_storage = FieldStorageConfig::create([
      'field_name' => 'field_link',
      'entity_type' => 'node',
      'type' => 'link',
    ]);
    $field_storage->save();
    $field = FieldConfig::create([
      'field_storage' => $field_storage,
      'bundle' => 'page',
      'settings' => [
        'title' => DRUPAL_OPTIONAL,
        'link_type' => LinkItemInterface::LINK_GENERIC,
      ],
    ]);
    $field->save();
    \Drupal::service('entity_display.repository')->getFormDisplay('node', 'page', 'default')
      ->setComponent('field_link', [
      'type' => 'link_default',
    ])
      ->save();
    \Drupal::service('entity_display.repository')->getViewDisplay('node', 'page', 'full')
      ->setComponent('field_link', [
      'type' => 'link',
    ])
      ->save();
    // Enable URL language detection and selection and set a prefix for both
    // languages.
    $edit = [
      'language_interface[enabled][language-url]' => 1,
    ];
    $this->drupalGet('admin/config/regional/language/detection');
    $this->submitForm($edit, 'Save settings');
    $edit = [
      'prefix[en]' => 'en',
    ];
    $this->drupalGet('admin/config/regional/language/detection/url');
    $this->submitForm($edit, 'Save configuration');
    // Reset the cache after changing the negotiation settings as that changes
    // how links are built.
    $this->resetAll();
    $definitions = \Drupal::service('entity_field.manager')->getFieldDefinitions('node', 'page');
    $this->assertTrue($definitions['path']->isTranslatable(), 'Node path is translatable.');
    $this->assertTrue($definitions['body']->isTranslatable(), 'Node body is translatable.');
  }
  
  /**
   * Creates content with a link field pointing to an alias of another language.
   *
   * @dataProvider providerLanguage
   */
  public function testLinkTranslationWithAlias($source_langcode) {
    $source_url_options = [
      'language' => ConfigurableLanguage::load($source_langcode),
    ];
    // Create a target node in the source language that is the link target.
    $edit = [
      'langcode[0][value]' => $source_langcode,
      'title[0][value]' => 'Target page',
      'path[0][alias]' => '/target-page',
    ];
    $this->drupalGet('node/add/page', $source_url_options);
    $this->submitForm($edit, 'Save');
    // Confirm that the alias works.
    $assert_session = $this->assertSession();
    $assert_session->addressEquals($source_langcode . '/target-page');
    $assert_session->statusCodeEquals(200);
    $assert_session->pageTextContains('Target page');
    // Create a second node that links to the first through the link field.
    $edit = [
      'langcode[0][value]' => $source_langcode,
      'title[0][value]' => 'Link page',
      'field_link[0][uri]' => '/target-page',
      'field_link[0][title]' => 'Target page',
      'path[0][alias]' => '/link-page',
    ];
    $this->drupalGet('node/add/page', $source_url_options);
    $this->submitForm($edit, 'Save');
    // Make sure the link node is displayed with a working link.
    $assert_session->pageTextContains('Link page');
    $this->clickLink('Target page');
    $assert_session->addressEquals($source_langcode . '/target-page');
    $assert_session->statusCodeEquals(200);
    $assert_session->pageTextContains('Target page');
    // Clear all caches, then add a translation for the link node.
    $this->resetAll();
    $this->drupalGet('link-page', $source_url_options);
    $this->clickLink('Translate');
    $this->clickLink('Add');
    // Do not change the link field.
    $edit = [
      'title[0][value]' => 'Translated link page',
      'path[0][alias]' => '/translated-link-page',
    ];
    $this->submitForm($edit, 'Save (this translation)');
    $assert_session->pageTextContains('Translated link page');
    // @todo Clicking on the link does not include the language prefix.
    $this->drupalGet('target-page', $source_url_options);
    $assert_session->statusCodeEquals(200);
    $assert_session->pageTextContains('Target page');
  }
  
  /**
   * Data provider for testFromUri().
   */
  public function providerLanguage() {
    return [
      [
        'en',
      ],
      [
        'fr',
      ],
    ];
  }

}