class ConfigurableLanguageManagerTest

class ConfigurableLanguageManagerTest extends BrowserTestBase {
    use WaitTerminateTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
        'content_translation',
        'node',
        'locale',
        'block',
        'system',
        'user',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // The \Drupal\locale\LocaleTranslation service clears caches after the
        // response is flushed to the client. We use WaitTerminateTestTrait to wait
        // for Drupal to perform its termination work before continuing.
        $this->setWaitForTerminate();
        
        /** @var \Drupal\user\UserInterface $user */
        $user = $this->createUser([], '', TRUE);
        $this->drupalLogin($user);
        ConfigurableLanguage::createFromLangcode('es')->save();
        // Create a page node type and make it translatable.
        NodeType::create([
            'type' => 'page',
            'name' => 'Page',
        ])->save();
        $config = ContentLanguageSettings::loadByEntityTypeBundle('node', 'page');
        $config->setDefaultLangcode('en')
            ->setLanguageAlterable(TRUE)
            ->save();
        // Create a Node with title 'English' and translate it to Spanish.
        $node = Node::create([
            'type' => 'page',
            'title' => 'English',
        ]);
        $node->save();
        $node->addTranslation('es', [
            'title' => 'Español',
        ]);
        $node->save();
        // Enable both language_interface and language_content language negotiation.
        \Drupal::getContainer()->get('language_negotiator')
            ->updateConfiguration([
            'language_interface',
            'language_content',
        ]);
        // Set the preferred language of the user for admin pages to English.
        $user->set('preferred_admin_langcode', 'en')
            ->save();
        // Make sure node edit pages are administration pages.
        $this->config('node.settings')
            ->set('use_admin_theme', '1')
            ->save();
        $this->container
            ->get('router.builder')
            ->rebuild();
        // Place a Block with a translatable string on the page.
        $this->placeBlock('system_powered_by_block', [
            'region' => 'content',
        ]);
        // Load the Spanish Node page once, to register the translatable string.
        $this->drupalGet('/es/node/1');
        // Translate the Powered by string.
        
        /** @var \Drupal\locale\StringStorageInterface $string_storage */
        $string_storage = \Drupal::getContainer()->get('locale.storage');
        $source = $string_storage->findString([
            'source' => 'Powered by <a href=":poweredby">Drupal</a>',
        ]);
        $string_storage->createTranslation([
            'lid' => $source->lid,
            'language' => 'es',
            'translation' => 'Funciona con ...',
        ])
            ->save();
        // Invalidate caches so that the new translation will be used.
        Cache::invalidateTags([
            'rendered',
            'locale',
        ]);
    }
    
    /**
     * Tests translation with URL and Preferred Admin Language negotiators.
     *
     * The interface language uses the preferred language for admin pages of the
     * user and after that the URL. The Content uses just the URL.
     */
    public function testUrlContentTranslationWithPreferredAdminLanguage() : void {
        $assert_session = $this->assertSession();
        // Set the interface language to use the preferred administration language
        // and then the URL.
        
        /** @var \Drupal\language\LanguageNegotiatorInterface $language_negotiator */
        $language_negotiator = \Drupal::getContainer()->get('language_negotiator');
        $language_negotiator->saveConfiguration('language_interface', [
            'language-user-admin' => 1,
            'language-url' => 2,
            'language-selected' => 3,
        ]);
        // Set Content Language Negotiator to use just the URL.
        $language_negotiator->saveConfiguration('language_content', [
            'language-url' => 4,
            'language-selected' => 5,
        ]);
        // See if the full view of the node in english is present and the
        // string in the Powered By Block is in English.
        $this->drupalGet('/node/1');
        $assert_session->pageTextContains('English');
        $assert_session->pageTextContains('Powered by');
        // Load the spanish node page again and see if both the node and the string
        // are translated.
        $this->drupalGet('/es/node/1');
        $assert_session->pageTextContains('Español');
        $assert_session->pageTextContains('Funciona con');
        $assert_session->pageTextNotContains('Powered by');
        // Check if the Powered by string is shown in English on an
        // administration page, and the node content is shown in Spanish.
        $this->drupalGet('/es/node/1/edit');
        $assert_session->pageTextContains('Español');
        $assert_session->pageTextContains('Powered by');
        $assert_session->pageTextNotContains('Funciona con');
    }
    
    /**
     * Tests translation with URL and Session Language Negotiators.
     */
    public function testUrlContentTranslationWithSessionLanguage() : void {
        $assert_session = $this->assertSession();
        
        /** @var \Drupal\language\LanguageNegotiatorInterface $language_negotiator */
        $language_negotiator = \Drupal::getContainer()->get('language_negotiator');
        // Set Interface Language Negotiator to Session.
        $language_negotiator->saveConfiguration('language_interface', [
            'language-session' => 1,
            'language-url' => 2,
            'language-selected' => 3,
        ]);
        // Set Content Language Negotiator to URL.
        $language_negotiator->saveConfiguration('language_content', [
            'language-url' => 4,
            'language-selected' => 5,
        ]);
        // See if the full view of the node in english is present and the
        // string in the Powered By Block is in English.
        $this->drupalGet('/node/1');
        $assert_session->pageTextContains('English');
        $assert_session->pageTextContains('Powered by');
        // The language session variable has not been set yet, so
        // The string should be in Spanish.
        $this->drupalGet('/es/node/1');
        $assert_session->pageTextContains('Español');
        $assert_session->pageTextNotContains('Powered by');
        $assert_session->pageTextContains('Funciona con');
        // Set the session language to Spanish but load the English node page.
        $this->drupalGet('/node/1', [
            'query' => [
                'language' => 'es',
            ],
        ]);
        $assert_session->pageTextContains('English');
        $assert_session->pageTextNotContains('Español');
        $assert_session->pageTextContains('Funciona con');
        $assert_session->pageTextNotContains('Powered by');
        // Set the session language to English but load the node page in Spanish.
        $this->drupalGet('/es/node/1', [
            'query' => [
                'language' => 'en',
            ],
        ]);
        $assert_session->pageTextNotContains('English');
        $assert_session->pageTextContains('Español');
        $assert_session->pageTextNotContains('Funciona con');
        $assert_session->pageTextContains('Powered by');
    }
    
    /**
     * Tests translation of the user profile edit form.
     *
     * The user profile edit form is a special case when used with the preferred
     * admin language negotiator because of the recursive way that the negotiator
     * is called.
     */
    public function testUserProfileTranslationWithPreferredAdminLanguage() : void {
        $assert_session = $this->assertSession();
        // Set the interface language to use the preferred administration language.
        
        /** @var \Drupal\language\LanguageNegotiatorInterface $language_negotiator */
        $language_negotiator = \Drupal::getContainer()->get('language_negotiator');
        $language_negotiator->saveConfiguration('language_interface', [
            'language-user-admin' => 1,
            'language-selected' => 2,
        ]);
        // Create a field on the user entity.
        $field_name = $this->randomMachineName();
        $label = $this->randomMachineName();
        $field_label_en = "English {$label}";
        $field_label_es = "Español {$label}";
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'user',
            'type' => 'string',
        ]);
        $field_storage->save();
        $instance = FieldConfig::create([
            'field_storage' => $field_storage,
            'bundle' => 'user',
            'label' => $field_label_en,
        ]);
        $instance->save();
        // Add a Spanish translation.
        \Drupal::languageManager()->getLanguageConfigOverride('es', "field.field.user.user.{$field_name}")
            ->set('label', $field_label_es)
            ->save();
        // Add the new field to the edit form.
        EntityFormDisplay::create([
            'targetEntityType' => 'user',
            'bundle' => 'user',
            'mode' => 'default',
            'status' => TRUE,
        ])->setComponent($field_name, [
            'type' => 'string_textfield',
        ])
            ->save();
        $user_id = \Drupal::currentUser()->id();
        $this->drupalGet("/user/{$user_id}/edit");
        // Admin language choice is "No preference" so we should get the default.
        $assert_session->pageTextContains($field_label_en);
        $assert_session->pageTextNotContains($field_label_es);
        // Set admin language to Spanish.
        $this->submitForm([
            'edit-preferred-admin-langcode' => 'es',
        ], 'edit-submit');
        $assert_session->pageTextContains($field_label_es);
        $assert_session->pageTextNotContains($field_label_en);
        // Set admin language to English.
        $this->submitForm([
            'edit-preferred-admin-langcode' => 'en',
        ], 'edit-submit');
        $assert_session->pageTextContains($field_label_en);
        $assert_session->pageTextNotContains($field_label_es);
    }

}