class ContentTranslationSettingsTest

class ContentTranslationSettingsTest extends BrowserTestBase {
    use CommentTestTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'language',
        'content_translation',
        'node',
        'comment',
        'field_ui',
        'entity_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'classy';
    protected function setUp() {
        parent::setUp();
        // Set up two content types to test fields shared between different
        // bundles.
        $this->drupalCreateContentType([
            'type' => 'article',
        ]);
        $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        $this->addDefaultCommentField('node', 'article', 'comment_article', CommentItemInterface::OPEN, 'comment_article');
        $this->addDefaultCommentField('node', 'page', 'comment_page');
        $admin_user = $this->drupalCreateUser([
            'access administration pages',
            'administer languages',
            'administer content translation',
            'administer content types',
            'administer node fields',
            'administer comment fields',
            'administer comments',
            'administer comment types',
            'administer account settings',
        ]);
        $this->drupalLogin($admin_user);
    }
    
    /**
     * Tests that the settings UI works as expected.
     */
    public function testSettingsUI() {
        // Check for the content_translation_menu_links_discovered_alter() changes.
        $this->drupalGet('admin/config');
        $this->assertSession()
            ->linkExists('Content language and translation');
        $this->assertText('Configure language and translation support for content.');
        // Test that the translation settings are ignored if the bundle is marked
        // translatable but the entity type is not.
        $edit = [
            'settings[comment][comment_article][translatable]' => TRUE,
        ];
        $this->assertSettings('comment', NULL, FALSE, $edit);
        // Test that the translation settings are ignored if only a field is marked
        // as translatable and not the related entity type and bundle.
        $edit = [
            'settings[comment][comment_article][fields][comment_body]' => TRUE,
        ];
        $this->assertSettings('comment', NULL, FALSE, $edit);
        // Test that the translation settings are not stored if an entity type and
        // bundle are marked as translatable but no field is.
        $edit = [
            'entity_types[comment]' => TRUE,
            'settings[comment][comment_article][translatable]' => TRUE,
            // Base fields are translatable by default.
'settings[comment][comment_article][fields][changed]' => FALSE,
            'settings[comment][comment_article][fields][created]' => FALSE,
            'settings[comment][comment_article][fields][homepage]' => FALSE,
            'settings[comment][comment_article][fields][hostname]' => FALSE,
            'settings[comment][comment_article][fields][mail]' => FALSE,
            'settings[comment][comment_article][fields][name]' => FALSE,
            'settings[comment][comment_article][fields][status]' => FALSE,
            'settings[comment][comment_article][fields][subject]' => FALSE,
            'settings[comment][comment_article][fields][uid]' => FALSE,
        ];
        $this->assertSettings('comment', 'comment_article', FALSE, $edit);
        $xpath_err = '//div[contains(@class, "error")]';
        $this->assertNotEmpty($this->xpath($xpath_err), 'Enabling translation only for entity bundles generates a form error.');
        // Test that the translation settings are not stored if a non-configurable
        // language is set as default and the language selector is hidden.
        $edit = [
            'entity_types[comment]' => TRUE,
            'settings[comment][comment_article][settings][language][langcode]' => Language::LANGCODE_NOT_SPECIFIED,
            'settings[comment][comment_article][settings][language][language_alterable]' => FALSE,
            'settings[comment][comment_article][translatable]' => TRUE,
            'settings[comment][comment_article][fields][comment_body]' => TRUE,
        ];
        $this->assertSettings('comment', 'comment_article', FALSE, $edit);
        $this->assertNotEmpty($this->xpath($xpath_err), 'Enabling translation with a fixed non-configurable language generates a form error.');
        // Test that a field shared among different bundles can be enabled without
        // needing to make all the related bundles translatable.
        $edit = [
            'entity_types[comment]' => TRUE,
            'settings[comment][comment_article][settings][language][langcode]' => 'current_interface',
            'settings[comment][comment_article][settings][language][language_alterable]' => TRUE,
            'settings[comment][comment_article][translatable]' => TRUE,
            'settings[comment][comment_article][fields][comment_body]' => TRUE,
            // Override both comment subject fields to untranslatable.
'settings[comment][comment_article][fields][subject]' => FALSE,
            'settings[comment][comment][fields][subject]' => FALSE,
        ];
        $this->assertSettings('comment', 'comment_article', TRUE, $edit);
        $entity_field_manager = \Drupal::service('entity_field.manager');
        $definition = $entity_field_manager->getFieldDefinitions('comment', 'comment_article')['comment_body'];
        $this->assertTrue($definition->isTranslatable(), 'Article comment body is translatable.');
        $definition = $entity_field_manager->getFieldDefinitions('comment', 'comment_article')['subject'];
        $this->assertFalse($definition->isTranslatable(), 'Article comment subject is not translatable.');
        $definition = $entity_field_manager->getFieldDefinitions('comment', 'comment')['comment_body'];
        $this->assertFalse($definition->isTranslatable(), 'Page comment body is not translatable.');
        $definition = $entity_field_manager->getFieldDefinitions('comment', 'comment')['subject'];
        $this->assertFalse($definition->isTranslatable(), 'Page comment subject is not translatable.');
        // Test that translation can be enabled for base fields.
        $edit = [
            'entity_types[entity_test_mul]' => TRUE,
            'settings[entity_test_mul][entity_test_mul][translatable]' => TRUE,
            'settings[entity_test_mul][entity_test_mul][fields][name]' => TRUE,
            'settings[entity_test_mul][entity_test_mul][fields][user_id]' => FALSE,
        ];
        $this->assertSettings('entity_test_mul', 'entity_test_mul', TRUE, $edit);
        $field_override = BaseFieldOverride::loadByName('entity_test_mul', 'entity_test_mul', 'name');
        $this->assertTrue($field_override->isTranslatable(), 'Base fields can be overridden with a base field bundle override entity.');
        $definitions = $entity_field_manager->getFieldDefinitions('entity_test_mul', 'entity_test_mul');
        $this->assertTrue($definitions['name']->isTranslatable() && !$definitions['user_id']->isTranslatable(), 'Base field bundle overrides were correctly altered.');
        // Test that language settings are correctly stored.
        $language_configuration = ContentLanguageSettings::loadByEntityTypeBundle('comment', 'comment_article');
        $this->assertEqual($language_configuration->getDefaultLangcode(), 'current_interface', 'The default language for article comments is set to the interface text language selected for page.');
        $this->assertTrue($language_configuration->isLanguageAlterable(), 'The language selector for article comments is shown.');
        // Verify language widget appears on comment type form.
        $this->drupalGet('admin/structure/comment/manage/comment_article');
        $this->assertField('language_configuration[content_translation]');
        $this->assertFieldChecked('edit-language-configuration-content-translation');
        // Verify that translation may be enabled for the article content type.
        $edit = [
            'language_configuration[content_translation]' => TRUE,
        ];
        // Make sure the checkbox is available and not checked by default.
        $this->drupalGet('admin/structure/types/manage/article');
        $this->assertField('language_configuration[content_translation]');
        $this->assertNoFieldChecked('edit-language-configuration-content-translation');
        $this->drupalPostForm('admin/structure/types/manage/article', $edit, t('Save content type'));
        $this->drupalGet('admin/structure/types/manage/article');
        $this->assertFieldChecked('edit-language-configuration-content-translation');
        // Test that the title field of nodes is available in the settings form.
        $edit = [
            'entity_types[node]' => TRUE,
            'settings[node][article][settings][language][langcode]' => 'current_interface',
            'settings[node][article][settings][language][language_alterable]' => TRUE,
            'settings[node][article][translatable]' => TRUE,
            'settings[node][article][fields][title]' => TRUE,
        ];
        $this->assertSettings('node', NULL, TRUE, $edit);
        foreach ([
            TRUE,
            FALSE,
        ] as $translatable) {
            // Test that configurable field translatability is correctly switched.
            $edit = [
                'settings[node][article][fields][body]' => $translatable,
            ];
            $this->assertSettings('node', 'article', TRUE, $edit);
            $field = FieldConfig::loadByName('node', 'article', 'body');
            $definitions = $entity_field_manager->getFieldDefinitions('node', 'article');
            $this->assertEqual($definitions['body']->isTranslatable(), $translatable, 'Field translatability correctly switched.');
            $this->assertEqual($field->isTranslatable(), $definitions['body']->isTranslatable(), 'Configurable field translatability correctly switched.');
            // Test that also the Field UI form behaves correctly.
            $translatable = !$translatable;
            $edit = [
                'translatable' => $translatable,
            ];
            $this->drupalPostForm('admin/structure/types/manage/article/fields/node.article.body', $edit, t('Save settings'));
            $entity_field_manager->clearCachedFieldDefinitions();
            $field = FieldConfig::loadByName('node', 'article', 'body');
            $definitions = $entity_field_manager->getFieldDefinitions('node', 'article');
            $this->assertEqual($definitions['body']->isTranslatable(), $translatable, 'Field translatability correctly switched.');
            $this->assertEqual($field->isTranslatable(), $definitions['body']->isTranslatable(), 'Configurable field translatability correctly switched.');
        }
        // Test that the order of the language list is similar to other language
        // lists, such as in Views UI.
        $this->drupalGet('admin/config/regional/content-language');
        $expected_elements = [
            'site_default',
            'current_interface',
            'authors_default',
            'en',
            'und',
            'zxx',
        ];
        $elements = $this->xpath('//select[@id="edit-settings-node-article-settings-language-langcode"]/option');
        // Compare values inside the option elements with expected values.
        for ($i = 0; $i < count($elements); $i++) {
            $this->assertEqual($elements[$i]->getValue(), $expected_elements[$i]);
        }
    }
    
    /**
     * Tests the language settings checkbox on account settings page.
     */
    public function testAccountLanguageSettingsUI() {
        // Make sure the checkbox is available and not checked by default.
        $this->drupalGet('admin/config/people/accounts');
        $this->assertField('language[content_translation]');
        $this->assertNoFieldChecked('edit-language-content-translation');
        $edit = [
            'language[content_translation]' => TRUE,
        ];
        $this->drupalPostForm('admin/config/people/accounts', $edit, t('Save configuration'));
        $this->drupalGet('admin/config/people/accounts');
        $this->assertFieldChecked('edit-language-content-translation');
        // Make sure account settings can be saved.
        $this->drupalPostForm('admin/config/people/accounts', [
            'anonymous' => 'Save me please!',
        ], 'Save configuration');
        $this->assertFieldByName('anonymous', 'Save me please!', 'Anonymous name has been changed.');
        $this->assertText('The configuration options have been saved.');
    }
    
    /**
     * Asserts that translatability has the expected value for the given bundle.
     *
     * @param string $entity_type
     *   The entity type for which to check translatability.
     * @param string $bundle
     *   The bundle for which to check translatability.
     * @param bool $enabled
     *   TRUE if translatability should be enabled, FALSE otherwise.
     * @param array $edit
     *   An array of values to submit to the content translation settings page.
     *
     * @return bool
     *   TRUE if the assertion succeeded, FALSE otherwise.
     */
    protected function assertSettings($entity_type, $bundle, $enabled, $edit) {
        $this->drupalPostForm('admin/config/regional/content-language', $edit, t('Save configuration'));
        $args = [
            '@entity_type' => $entity_type,
            '@bundle' => $bundle,
            '@enabled' => $enabled ? 'enabled' : 'disabled',
        ];
        $message = new FormattableMarkup('Translation for entity @entity_type (@bundle) is @enabled.', $args);
        return $this->assertEqual(\Drupal::service('content_translation.manager')->isEnabled($entity_type, $bundle), $enabled, $message);
    }
    
    /**
     * Tests that field setting depends on bundle translatability.
     */
    public function testFieldTranslatableSettingsUI() {
        // At least one field needs to be translatable to enable article for
        // translation. Create an extra field to be used for this purpose. We use
        // the UI to test our form alterations.
        $edit = [
            'new_storage_type' => 'text',
            'label' => 'Test',
            'field_name' => 'article_text',
        ];
        $this->drupalPostForm('admin/structure/types/manage/article/fields/add-field', $edit, 'Save and continue');
        // Tests that field doesn't have translatable setting if bundle is not
        // translatable.
        $path = 'admin/structure/types/manage/article/fields/node.article.field_article_text';
        $this->drupalGet($path);
        $this->assertFieldByXPath('//input[@id="edit-translatable" and @disabled="disabled"]');
        $this->assertText('To configure translation for this field, enable language support for this type.', 'No translatable setting for field.');
        // Tests that field has translatable setting if bundle is translatable.
        // Note: this field is not translatable when enable bundle translatability.
        $edit = [
            'entity_types[node]' => TRUE,
            'settings[node][article][settings][language][language_alterable]' => TRUE,
            'settings[node][article][translatable]' => TRUE,
            'settings[node][article][fields][field_article_text]' => TRUE,
        ];
        $this->assertSettings('node', 'article', TRUE, $edit);
        $this->drupalGet($path);
        $this->assertFieldByXPath('//input[@id="edit-translatable" and not(@disabled) and @checked="checked"]');
        $this->assertNoText('To enable translation of this field, enable language support for this type.', 'Translatable setting for field available.');
    }
    
    /**
     * Tests the translatable settings checkbox for untranslatable entities.
     */
    public function testNonTranslatableTranslationSettingsUI() {
        $this->drupalGet('admin/config/regional/content-language');
        $this->assertNoField('settings[entity_test][entity_test][translatable]');
    }

}