class ConfigTranslationUiTest

class ConfigTranslationUiTest extends BrowserTestBase {
    use AssertMailTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'block',
        'config_translation',
        'config_translation_test',
        'contact',
        'contact_test',
        'contextual',
        'entity_test',
        'field_test',
        'field_ui',
        'filter',
        'filter_test',
        'node',
        'views',
        'views_ui',
        'menu_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Languages to enable.
     *
     * @var array
     */
    protected $langcodes = [
        'fr',
        'ta',
        'tyv',
    ];
    
    /**
     * Administrator user for tests.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * Translator user for tests.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $translatorUser;
    
    /**
     * String translation storage object.
     *
     * @var \Drupal\locale\StringStorageInterface
     */
    protected $localeStorage;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $translator_permissions = [
            'translate configuration',
        ];
        
        /** @var \Drupal\filter\FilterFormatInterface $filter_test_format */
        $filter_test_format = FilterFormat::load('filter_test');
        
        /** @var \Drupal\filter\FilterFormatInterface $filtered_html_format */
        $filtered_html_format = FilterFormat::load('filtered_html');
        
        /** @var \Drupal\filter\FilterFormatInterface $full_html_format */
        $full_html_format = FilterFormat::load('full_html');
        $admin_permissions = array_merge($translator_permissions, [
            'administer languages',
            'administer site configuration',
            'link to any page',
            'administer contact forms',
            'administer filters',
            $filtered_html_format->getPermissionName(),
            $full_html_format->getPermissionName(),
            $filter_test_format->getPermissionName(),
            'access site-wide contact form',
            'access contextual links',
            'administer views',
            'administer account settings',
            'administer themes',
            'bypass node access',
            'administer content types',
            'translate interface',
        ]);
        // Create and log in user.
        $this->translatorUser = $this->drupalCreateUser($translator_permissions);
        $this->adminUser = $this->drupalCreateUser($admin_permissions);
        // Add languages.
        foreach ($this->langcodes as $langcode) {
            ConfigurableLanguage::createFromLangcode($langcode)->save();
        }
        $this->localeStorage = $this->container
            ->get('locale.storage');
        $this->drupalPlaceBlock('local_tasks_block');
        $this->drupalPlaceBlock('page_title_block');
    }
    
    /**
     * Tests the site information translation interface.
     */
    public function testSiteInformationTranslationUi() {
        $this->drupalLogin($this->adminUser);
        $site_name = 'Name of the site for testing configuration translation';
        $site_slogan = 'Site slogan for testing configuration translation';
        $site_name_label = 'Site name';
        $fr_site_name = 'Nom du site pour tester la configuration traduction';
        $fr_site_slogan = 'Slogan du site pour tester la traduction de configuration';
        $fr_site_name_label = 'Libellé du champ "Nom du site"';
        $translation_base_url = 'admin/config/system/site-information/translate';
        // Set site name and slogan for default language.
        $this->setSiteInformation($site_name, $site_slogan);
        $this->drupalGet('admin/config/system/site-information');
        // Check translation tab exist.
        $this->assertSession()
            ->linkByHrefExists($translation_base_url);
        $this->drupalGet($translation_base_url);
        // Check that the 'Edit' link in the source language links back to the
        // original form.
        $this->clickLink('Edit');
        // Also check that saving the form leads back to the translation overview.
        $this->submitForm([], 'Save configuration');
        $this->assertSession()
            ->addressEquals($translation_base_url);
        // Check 'Add' link of French to visit add page.
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/add");
        $this->clickLink('Add');
        // Make sure original text is present on this page.
        $this->assertSession()
            ->pageTextContains($site_name);
        $this->assertSession()
            ->pageTextContains($site_slogan);
        // Update site name and slogan for French.
        $edit = [
            'translation[config_names][system.site][name]' => $fr_site_name,
            'translation[config_names][system.site][slogan]' => $fr_site_slogan,
        ];
        $this->drupalGet("{$translation_base_url}/fr/add");
        $this->submitForm($edit, 'Save translation');
        $this->assertSession()
            ->pageTextContains('Successfully saved French translation.');
        // Check for edit, delete links (and no 'add' link) for French language.
        $this->assertSession()
            ->linkByHrefNotExists("{$translation_base_url}/fr/add");
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/delete");
        // Check translation saved proper.
        $this->drupalGet("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][system.site][name]', $fr_site_name);
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][system.site][slogan]', $fr_site_slogan);
        // Place branding block with site name and slogan into header region.
        $this->drupalPlaceBlock('system_branding_block', [
            'region' => 'header',
        ]);
        // Check French translation of site name and slogan are in place.
        $this->drupalGet('fr');
        $this->assertSession()
            ->pageTextContains($fr_site_name);
        $this->assertSession()
            ->pageTextContains($fr_site_slogan);
        // Visit French site to ensure base language string present as source.
        $this->drupalGet("fr/{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->pageTextContains($site_name);
        $this->assertSession()
            ->pageTextContains($site_slogan);
        // Translate 'Site name' label in French.
        $search = [
            'string' => $site_name_label,
            'langcode' => 'fr',
            'translation' => 'untranslated',
        ];
        $this->drupalGet('admin/config/regional/translate');
        $this->submitForm($search, 'Filter');
        $textarea = $this->assertSession()
            ->elementExists('xpath', '//textarea');
        $lid = $textarea->getAttribute('name');
        $edit = [
            $lid => $fr_site_name_label,
        ];
        $this->drupalGet('admin/config/regional/translate');
        $this->submitForm($edit, 'Save translations');
        // Ensure that the label is in French (and not in English).
        $this->drupalGet("fr/{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->pageTextContains($fr_site_name_label);
        $this->assertSession()
            ->pageTextNotContains($site_name_label);
        // Ensure that the label is also in French (and not in English)
        // when editing another language with the interface in French.
        $this->drupalGet("fr/{$translation_base_url}/ta/edit");
        $this->assertSession()
            ->pageTextContains($fr_site_name_label);
        $this->assertSession()
            ->pageTextNotContains($site_name_label);
        // Ensure that the label is not translated when the interface is in English.
        $this->drupalGet("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->pageTextContains($site_name_label);
        $this->assertSession()
            ->pageTextNotContains($fr_site_name_label);
    }
    
    /**
     * Tests the site information translation interface.
     */
    public function testSourceValueDuplicateSave() {
        $this->drupalLogin($this->adminUser);
        $site_name = 'Site name for testing configuration translation';
        $site_slogan = 'Site slogan for testing configuration translation';
        $translation_base_url = 'admin/config/system/site-information/translate';
        $this->setSiteInformation($site_name, $site_slogan);
        $this->drupalGet($translation_base_url);
        // Case 1: Update new value for site slogan and site name.
        $edit = [
            'translation[config_names][system.site][name]' => 'FR ' . $site_name,
            'translation[config_names][system.site][slogan]' => 'FR ' . $site_slogan,
        ];
        // First time, no overrides, so just Add link.
        $this->drupalGet("{$translation_base_url}/fr/add");
        $this->submitForm($edit, 'Save translation');
        // Read overridden file from active config.
        $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'system.site');
        // Expect both name and slogan in language specific file.
        $expected = [
            'name' => 'FR ' . $site_name,
            'slogan' => 'FR ' . $site_slogan,
        ];
        $this->assertEquals($expected, $override->get());
        // Case 2: Update new value for site slogan and default value for site name.
        $this->drupalGet("{$translation_base_url}/fr/edit");
        // Assert that the language configuration does not leak outside of the
        // translation form into the actual site name and slogan.
        $this->assertSession()
            ->pageTextNotContains('FR ' . $site_name);
        $this->assertSession()
            ->pageTextNotContains('FR ' . $site_slogan);
        $edit = [
            'translation[config_names][system.site][name]' => $site_name,
            'translation[config_names][system.site][slogan]' => 'FR ' . $site_slogan,
        ];
        $this->submitForm($edit, 'Save translation');
        $this->assertSession()
            ->pageTextContains('Successfully updated French translation.');
        $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'system.site');
        // Expect only slogan in language specific file.
        $expected = 'FR ' . $site_slogan;
        $this->assertEquals($expected, $override->get('slogan'));
        // Case 3: Keep default value for site name and slogan.
        $this->drupalGet("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->pageTextNotContains('FR ' . $site_slogan);
        $edit = [
            'translation[config_names][system.site][name]' => $site_name,
            'translation[config_names][system.site][slogan]' => $site_slogan,
        ];
        $this->submitForm($edit, 'Save translation');
        $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'system.site');
        // Expect no language specific file.
        $this->assertTrue($override->isNew());
        // Check configuration page with translator user. Should have no access.
        $this->drupalLogout();
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet('admin/config/system/site-information');
        $this->assertSession()
            ->statusCodeEquals(403);
        // While translator can access the translation page, the edit link is not
        // present due to lack of permissions.
        $this->drupalGet($translation_base_url);
        $this->assertSession()
            ->linkNotExists('Edit');
        // Check 'Add' link for French.
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/add");
    }
    
    /**
     * Tests the contact form translation.
     */
    public function testContactConfigEntityTranslation() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/structure/contact');
        // Check for default contact form configuration entity from Contact module.
        $this->assertSession()
            ->linkByHrefExists('admin/structure/contact/manage/feedback');
        // Save default language configuration.
        $label = 'Send your feedback';
        $edit = [
            'label' => $label,
            'recipients' => 'sales@example.com,support@example.com',
            'reply' => 'Thank you for your mail',
        ];
        $this->drupalGet('admin/structure/contact/manage/feedback');
        $this->submitForm($edit, 'Save');
        // Ensure translation link is present.
        $translation_base_url = 'admin/structure/contact/manage/feedback/translate';
        $this->assertSession()
            ->linkByHrefExists($translation_base_url);
        // Make sure translate tab is present.
        $this->drupalGet('admin/structure/contact/manage/feedback');
        $this->assertSession()
            ->linkExists('Translate contact form');
        // Visit the form to confirm the changes.
        $this->drupalGet('contact/feedback');
        $this->assertSession()
            ->pageTextContains($label);
        foreach ($this->langcodes as $langcode) {
            $this->drupalGet($translation_base_url);
            $this->assertSession()
                ->linkExists('Translate contact form');
            // 'Add' link should be present for $langcode translation.
            $translation_page_url = "{$translation_base_url}/{$langcode}/add";
            $this->assertSession()
                ->linkByHrefExists($translation_page_url);
            // Make sure original text is present on this page.
            $this->drupalGet($translation_page_url);
            $this->assertSession()
                ->pageTextContains($label);
            // Update translatable fields.
            $edit = [
                'translation[config_names][contact.form.feedback][label]' => 'Website feedback - ' . $langcode,
                'translation[config_names][contact.form.feedback][reply]' => 'Thank you for your mail - ' . $langcode,
            ];
            // Save language specific version of form.
            $this->drupalGet($translation_page_url);
            $this->submitForm($edit, 'Save translation');
            // Expect translated values in language specific file.
            $override = \Drupal::languageManager()->getLanguageConfigOverride($langcode, 'contact.form.feedback');
            $expected = [
                'label' => 'Website feedback - ' . $langcode,
                'reply' => 'Thank you for your mail - ' . $langcode,
            ];
            $this->assertEquals($expected, $override->get());
            // Check for edit, delete links (and no 'add' link) for $langcode.
            $this->assertSession()
                ->linkByHrefNotExists("{$translation_base_url}/{$langcode}/add");
            $this->assertSession()
                ->linkByHrefExists("{$translation_base_url}/{$langcode}/edit");
            $this->assertSession()
                ->linkByHrefExists("{$translation_base_url}/{$langcode}/delete");
            // Visit language specific version of form to check label.
            $this->drupalGet($langcode . '/contact/feedback');
            $this->assertSession()
                ->pageTextContains('Website feedback - ' . $langcode);
            // Submit feedback.
            $edit = [
                'subject[0][value]' => 'Test subject',
                'message[0][value]' => 'Test message',
            ];
            $this->submitForm($edit, 'Send message');
        }
        // Now that all language translations are present, check translation and
        // original text all appear in any translated page on the translation
        // forms.
        foreach ($this->langcodes as $langcode) {
            $langcode_prefixes = array_merge([
                '',
            ], $this->langcodes);
            foreach ($langcode_prefixes as $langcode_prefix) {
                $this->drupalGet(ltrim("{$langcode_prefix}/{$translation_base_url}/{$langcode}/edit", '/'));
                $this->assertSession()
                    ->fieldValueEquals('translation[config_names][contact.form.feedback][label]', 'Website feedback - ' . $langcode);
                $this->assertSession()
                    ->pageTextContains($label);
            }
        }
        // We get all emails so no need to check inside the loop.
        $captured_emails = $this->getMails();
        // Check language specific auto reply text in email body.
        foreach ($captured_emails as $email) {
            if ($email['id'] == 'contact_page_autoreply') {
                // Trim because we get an added newline for the body.
                $this->assertEquals('Thank you for your mail - ' . $email['langcode'], trim($email['body']));
            }
        }
        // Test that delete links work and operations perform properly.
        foreach ($this->langcodes as $langcode) {
            $language = \Drupal::languageManager()->getLanguage($langcode)
                ->getName();
            $this->drupalGet("{$translation_base_url}/{$langcode}/delete");
            $this->assertSession()
                ->pageTextContains("Are you sure you want to delete the {$language} translation of {$label} contact form?");
            // Assert link back to list page to cancel delete is present.
            $this->assertSession()
                ->linkByHrefExists($translation_base_url);
            $this->submitForm([], 'Delete');
            $this->assertSession()
                ->pageTextContains("{$language} translation of {$label} contact form was deleted");
            $this->assertSession()
                ->linkByHrefExists("{$translation_base_url}/{$langcode}/add");
            $this->assertSession()
                ->linkByHrefNotExists("translation_base_url/{$langcode}/edit");
            $this->assertSession()
                ->linkByHrefNotExists("{$translation_base_url}/{$langcode}/delete");
            // Expect no language specific file present anymore.
            $override = \Drupal::languageManager()->getLanguageConfigOverride($langcode, 'contact.form.feedback');
            $this->assertTrue($override->isNew());
        }
        // Check configuration page with translator user. Should have no access.
        $this->drupalLogout();
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet('admin/structure/contact/manage/feedback');
        $this->assertSession()
            ->statusCodeEquals(403);
        // While translator can access the translation page, the edit link is not
        // present due to lack of permissions.
        $this->drupalGet($translation_base_url);
        $this->assertSession()
            ->linkNotExists('Edit');
        // Check 'Add' link for French.
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/add");
    }
    
    /**
     * Tests date format translation.
     */
    public function testDateFormatTranslation() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/regional/date-time');
        // Check for medium format.
        $this->assertSession()
            ->linkByHrefExists('admin/config/regional/date-time/formats/manage/medium');
        // Save default language configuration for a new format.
        $edit = [
            'label' => 'Custom medium date',
            'id' => 'custom_medium',
            'date_format_pattern' => 'Y. m. d. H:i',
        ];
        $this->drupalGet('admin/config/regional/date-time/formats/add');
        $this->submitForm($edit, 'Add format');
        // Test translating a default shipped format and our custom format.
        $formats = [
            'medium' => 'Default medium date',
            'custom_medium' => 'Custom medium date',
        ];
        foreach ($formats as $id => $label) {
            $translation_base_url = 'admin/config/regional/date-time/formats/manage/' . $id . '/translate';
            $this->drupalGet($translation_base_url);
            // 'Add' link should be present for French translation.
            $translation_page_url = "{$translation_base_url}/fr/add";
            $this->assertSession()
                ->linkByHrefExists($translation_page_url);
            // Make sure original text is present on this page.
            $this->drupalGet($translation_page_url);
            $this->assertSession()
                ->pageTextContains($label);
            // Make sure that the date library is added.
            $this->assertSession()
                ->responseContains('core/modules/system/js/system.date.js');
            // Update translatable fields.
            $edit = [
                'translation[config_names][core.date_format.' . $id . '][label]' => $id . ' - FR',
                'translation[config_names][core.date_format.' . $id . '][pattern]' => 'D',
            ];
            // Save language specific version of form.
            $this->drupalGet($translation_page_url);
            $this->submitForm($edit, 'Save translation');
            // Get translation and check we've got the right value.
            $override = \Drupal::languageManager()->getLanguageConfigOverride('fr', 'core.date_format.' . $id);
            $expected = [
                'label' => $id . ' - FR',
                'pattern' => 'D',
            ];
            $this->assertEquals($expected, $override->get());
            // Formatting the date 8 / 27 / 1985 @ 13:37 EST with pattern D should
            // display "Tue".
            $formatted_date = $this->container
                ->get('date.formatter')
                ->format(494015820, $id, NULL, 'America/New_York', 'fr');
            $this->assertEquals('Tue', $formatted_date, 'Got the right formatted date using the date format translation pattern.');
        }
    }
    
    /**
     * Tests the account settings translation interface.
     *
     * This is the only special case so far where we have multiple configuration
     * names involved building up one configuration translation form. Test that
     * the translations are saved for all configuration names properly.
     */
    public function testAccountSettingsConfigurationTranslation() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/config/people/accounts');
        $this->assertSession()
            ->linkExists('Translate account settings');
        $this->drupalGet('admin/config/people/accounts/translate');
        $this->assertSession()
            ->linkExists('Translate account settings');
        $this->assertSession()
            ->linkByHrefExists('admin/config/people/accounts/translate/fr/add');
        // Update account settings fields for French.
        $edit = [
            'translation[config_names][user.settings][anonymous]' => 'Anonyme',
            'translation[config_names][user.mail][status_blocked][subject]' => 'Testing, your account is blocked.',
            'translation[config_names][user.mail][status_blocked][body]' => 'Testing account blocked body.',
        ];
        $this->drupalGet('admin/config/people/accounts/translate/fr/add');
        $this->submitForm($edit, 'Save translation');
        // Make sure the changes are saved and loaded back properly.
        $this->drupalGet('admin/config/people/accounts/translate/fr/edit');
        foreach ($edit as $key => $value) {
            // Check the translations appear in the right field type as well.
            $this->assertSession()
                ->fieldValueEquals($key, $value);
        }
        // Check that labels for email settings appear.
        $this->assertSession()
            ->pageTextContains('Account cancellation confirmation');
        $this->assertSession()
            ->pageTextContains('Password recovery');
    }
    
    /**
     * Tests source and target language edge cases.
     */
    public function testSourceAndTargetLanguage() {
        $this->drupalLogin($this->adminUser);
        // Loading translation page for not-specified language (und)
        // should return 403.
        $this->drupalGet('admin/config/system/site-information/translate/und/add');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Check the source language doesn't have 'Add' or 'Delete' link and
        // make sure source language edit goes to original configuration page
        // not the translation specific edit page.
        $this->drupalGet('admin/config/system/site-information/translate');
        $this->assertSession()
            ->linkByHrefNotExists('admin/config/system/site-information/translate/en/edit');
        $this->assertSession()
            ->linkByHrefNotExists('admin/config/system/site-information/translate/en/add');
        $this->assertSession()
            ->linkByHrefNotExists('admin/config/system/site-information/translate/en/delete');
        $this->assertSession()
            ->linkByHrefExists('admin/config/system/site-information');
        // Translation addition to source language should return 403.
        $this->drupalGet('admin/config/system/site-information/translate/en/add');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Translation editing in source language should return 403.
        $this->drupalGet('admin/config/system/site-information/translate/en/edit');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Translation deletion in source language should return 403.
        $this->drupalGet('admin/config/system/site-information/translate/en/delete');
        $this->assertSession()
            ->statusCodeEquals(403);
        // Set default language of site information to not-specified language (und).
        $this->config('system.site')
            ->set('langcode', LanguageInterface::LANGCODE_NOT_SPECIFIED)
            ->save();
        // Make sure translation tab does not exist on the configuration page.
        $this->drupalGet('admin/config/system/site-information');
        $this->assertSession()
            ->linkByHrefNotExists('admin/config/system/site-information/translate');
        // If source language is not specified, translation page should be 403.
        $this->drupalGet('admin/config/system/site-information/translate');
        $this->assertSession()
            ->statusCodeEquals(403);
    }
    
    /**
     * Tests the views translation interface.
     */
    public function testViewsTranslationUI() {
        $this->drupalLogin($this->adminUser);
        $description = 'All content promoted to the front page.';
        $human_readable_name = 'Frontpage';
        $display_settings_default = 'Default';
        $display_options_default = '(Empty)';
        $translation_base_url = 'admin/structure/views/view/frontpage/translate';
        $this->drupalGet($translation_base_url);
        // Check 'Add' link of French to visit add page.
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/add");
        $this->clickLink('Add');
        // Make sure original text is present on this page.
        $this->assertSession()
            ->pageTextContains($description);
        $this->assertSession()
            ->pageTextContains($human_readable_name);
        // Update Views Fields for French.
        $edit = [
            'translation[config_names][views.view.frontpage][description]' => $description . " FR",
            'translation[config_names][views.view.frontpage][label]' => $human_readable_name . " FR",
            'translation[config_names][views.view.frontpage][display][default][display_title]' => $display_settings_default . " FR",
            'translation[config_names][views.view.frontpage][display][default][display_options][title]' => $display_options_default . " FR",
        ];
        $this->drupalGet("{$translation_base_url}/fr/add");
        $this->submitForm($edit, 'Save translation');
        $this->assertSession()
            ->pageTextContains('Successfully saved French translation.');
        // Check for edit, delete links (and no 'add' link) for French language.
        $this->assertSession()
            ->linkByHrefNotExists("{$translation_base_url}/fr/add");
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->linkByHrefExists("{$translation_base_url}/fr/delete");
        // Check translation saved proper.
        $this->drupalGet("{$translation_base_url}/fr/edit");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.frontpage][description]', $description . " FR");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.frontpage][label]', $human_readable_name . " FR");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.frontpage][display][default][display_title]', $display_settings_default . " FR");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.frontpage][display][default][display_options][title]', $display_options_default . " FR");
    }
    
    /**
     * Tests plural source elements in configuration translation forms.
     */
    public function testPluralConfigStringsSourceElements() {
        $this->drupalLogin($this->adminUser);
        // Languages to test, with various number of plural forms.
        $languages = [
            'vi' => [
                'plurals' => 1,
                'expected' => [
                    TRUE,
                    FALSE,
                    FALSE,
                    FALSE,
                ],
            ],
            'fr' => [
                'plurals' => 2,
                'expected' => [
                    TRUE,
                    TRUE,
                    FALSE,
                    FALSE,
                ],
            ],
            'sl' => [
                'plurals' => 4,
                'expected' => [
                    TRUE,
                    TRUE,
                    TRUE,
                    TRUE,
                ],
            ],
        ];
        foreach ($languages as $langcode => $data) {
            // Import a .po file to add a new language with a given number of plural forms
            $name = \Drupal::service('file_system')->tempnam('temporary://', $langcode . '_') . '.po';
            file_put_contents($name, $this->getPoFile($data['plurals']));
            $this->drupalGet('admin/config/regional/translate/import');
            $this->submitForm([
                'langcode' => $langcode,
                'files[file]' => $name,
            ], 'Import');
            // Change the config langcode of the 'files' view.
            $config = \Drupal::service('config.factory')->getEditable('views.view.files');
            $config->set('langcode', $langcode);
            $config->save();
            // Go to the translation page of the 'files' view.
            $translation_url = 'admin/structure/views/view/files/translate/en/add';
            $this->drupalGet($translation_url);
            // Check if the expected number of source elements are present.
            foreach ($data['expected'] as $index => $expected) {
                if ($expected) {
                    $this->assertSession()
                        ->responseContains('edit-source-config-names-viewsviewfiles-display-default-display-options-fields-count-format-plural-string-' . $index);
                }
                else {
                    $this->assertSession()
                        ->responseNotContains('edit-source-config-names-viewsviewfiles-display-default-display-options-fields-count-format-plural-string-' . $index);
                }
            }
        }
    }
    
    /**
     * Tests translation of plural strings with multiple plural forms in config.
     */
    public function testPluralConfigStrings() {
        $this->drupalLogin($this->adminUser);
        // First import a .po file with multiple plural forms.
        // This will also automatically add the 'sl' language.
        $name = \Drupal::service('file_system')->tempnam('temporary://', "sl_") . '.po';
        file_put_contents($name, $this->getPoFile(4));
        $this->drupalGet('admin/config/regional/translate/import');
        $this->submitForm([
            'langcode' => 'sl',
            'files[file]' => $name,
        ], 'Import');
        // Translate the files view, as this one uses numeric formatters.
        $description = 'Singular form';
        $field_value = '1 place';
        $field_value_plural = '@count places';
        $translation_url = 'admin/structure/views/view/files/translate/sl/add';
        $this->drupalGet($translation_url);
        // Make sure original text is present on this page, in addition to 2 new
        // empty fields.
        $this->assertSession()
            ->pageTextContains($description);
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][0]', $field_value);
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][1]', $field_value_plural);
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][2]', '');
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][3]', '');
        // Then make sure it also works.
        $edit = [
            'translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][0]' => $field_value . ' SL',
            'translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][1]' => $field_value_plural . ' 1 SL',
            'translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][2]' => $field_value_plural . ' 2 SL',
            'translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][3]' => $field_value_plural . ' 3 SL',
        ];
        $this->drupalGet($translation_url);
        $this->submitForm($edit, 'Save translation');
        // Make sure the values have changed.
        $this->drupalGet($translation_url);
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][0]', "{$field_value} SL");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][1]', "{$field_value_plural} 1 SL");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][2]', "{$field_value_plural} 2 SL");
        $this->assertSession()
            ->fieldValueEquals('translation[config_names][views.view.files][display][default][display_options][fields][count][format_plural_string][3]', "{$field_value_plural} 3 SL");
    }
    
    /**
     * Tests the translation of field and field storage configuration.
     */
    public function testFieldConfigTranslation() {
        // Add a test field which has a translatable field setting and a
        // translatable field storage setting.
        $field_name = strtolower($this->randomMachineName());
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'type' => 'test_field',
        ]);
        $translatable_storage_setting = $this->randomString();
        $field_storage->setSetting('translatable_storage_setting', $translatable_storage_setting);
        $field_storage->save();
        $bundle = strtolower($this->randomMachineName());
        entity_test_create_bundle($bundle);
        $field = FieldConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'bundle' => $bundle,
        ]);
        $translatable_field_setting = $this->randomString();
        $field->setSetting('translatable_field_setting', $translatable_field_setting);
        $field->save();
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet("/entity_test/structure/{$bundle}/fields/entity_test.{$bundle}.{$field_name}/translate");
        $this->clickLink('Add');
        $this->assertSession()
            ->pageTextContains('Translatable field setting');
        $this->assertSession()
            ->assertEscaped($translatable_field_setting);
        $this->assertSession()
            ->pageTextContains('Translatable storage setting');
        $this->assertSession()
            ->assertEscaped($translatable_storage_setting);
    }
    
    /**
     * Tests the translation of a boolean field settings.
     */
    public function testBooleanFieldConfigTranslation() {
        // Add a test boolean field.
        $field_name = strtolower($this->randomMachineName());
        FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'type' => 'boolean',
        ])->save();
        $bundle = strtolower($this->randomMachineName());
        entity_test_create_bundle($bundle);
        $field = FieldConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'entity_test',
            'bundle' => $bundle,
        ]);
        $on_label = 'On label (with <em>HTML</em> & things)';
        $field->setSetting('on_label', $on_label);
        $off_label = 'Off label (with <em>HTML</em> & things)';
        $field->setSetting('off_label', $off_label);
        $field->save();
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet("/entity_test/structure/{$bundle}/fields/entity_test.{$bundle}.{$field_name}/translate");
        $this->clickLink('Add');
        // Checks the text of details summary element that surrounds the translation
        // options.
        $this->assertSession()
            ->responseContains(Html::escape(strip_tags($on_label)) . ' Boolean settings');
        // Checks that the correct on and off labels appear on the form.
        $this->assertSession()
            ->assertEscaped($on_label);
        $this->assertSession()
            ->assertEscaped($off_label);
    }
    
    /**
     * Tests translation storage in locale storage.
     */
    public function testLocaleDBStorage() {
        // Enable import of translations. By default this is disabled for automated
        // tests.
        $this->config('locale.settings')
            ->set('translation.import_enabled', TRUE)
            ->set('translation.use_source', LOCALE_TRANSLATION_USE_SOURCE_LOCAL)
            ->save();
        $this->drupalLogin($this->adminUser);
        $langcode = 'xx';
        $name = $this->randomMachineName(16);
        $edit = [
            'predefined_langcode' => 'custom',
            'langcode' => $langcode,
            'label' => $name,
            'direction' => Language::DIRECTION_LTR,
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add custom language');
        // Make sure there is no translation stored in locale storage before edit.
        $translation = $this->getTranslation('user.settings', 'anonymous', 'fr');
        $this->assertEmpty($translation);
        // Add custom translation.
        $edit = [
            'translation[config_names][user.settings][anonymous]' => 'Anonyme',
        ];
        $this->drupalGet('admin/config/people/accounts/translate/fr/add');
        $this->submitForm($edit, 'Save translation');
        // Make sure translation stored in locale storage after saved language
        // specific configuration translation.
        $translation = $this->getTranslation('user.settings', 'anonymous', 'fr');
        $this->assertEquals('Anonyme', $translation->getString());
        // revert custom translations to base translation.
        $edit = [
            'translation[config_names][user.settings][anonymous]' => 'Anonymous',
        ];
        $this->drupalGet('admin/config/people/accounts/translate/fr/edit');
        $this->submitForm($edit, 'Save translation');
        // Make sure there is no translation stored in locale storage after revert.
        $translation = $this->getTranslation('user.settings', 'anonymous', 'fr');
        $this->assertEquals('Anonymous', $translation->getString());
    }
    
    /**
     * Tests the single language existing.
     */
    public function testSingleLanguageUI() {
        $this->drupalLogin($this->adminUser);
        // Delete French language
        $this->drupalGet('admin/config/regional/language/delete/fr');
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->pageTextContains('The French (fr) language has been removed.');
        // Change default language to Tamil.
        $edit = [
            'site_default_language' => 'ta',
        ];
        $this->drupalGet('admin/config/regional/language');
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains('Configuration saved.');
        // Delete English language
        $this->drupalGet('admin/config/regional/language/delete/en');
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->pageTextContains('The English (en) language has been removed.');
        // Visit account setting translation page, this should not
        // throw any notices.
        $this->drupalGet('admin/config/people/accounts/translate');
        $this->assertSession()
            ->statusCodeEquals(200);
    }
    
    /**
     * Tests the config_translation_info_alter() hook.
     */
    public function testAlterInfo() {
        $this->drupalLogin($this->adminUser);
        $this->container
            ->get('state')
            ->set('config_translation_test_config_translation_info_alter', TRUE);
        $this->container
            ->get('plugin.manager.config_translation.mapper')
            ->clearCachedDefinitions();
        // Check if the translation page does not have the altered out settings.
        $this->drupalGet('admin/config/people/accounts/translate/fr/add');
        $this->assertSession()
            ->pageTextContains('Name');
        $this->assertSession()
            ->pageTextNotContains('Account cancellation confirmation');
        $this->assertSession()
            ->pageTextNotContains('Password recovery');
    }
    
    /**
     * Tests the sequence data type translation.
     */
    public function testSequenceTranslation() {
        $this->drupalLogin($this->adminUser);
        
        /** @var \Drupal\Core\Config\ConfigFactoryInterface $config_factory */
        $config_factory = $this->container
            ->get('config.factory');
        $expected = [
            'kitten',
            'llama',
            'elephant',
        ];
        $actual = $config_factory->getEditable('config_translation_test.content')
            ->get('animals');
        $this->assertEquals($expected, $actual);
        $edit = [
            'translation[config_names][config_translation_test.content][content][value]' => '<p><strong>Hello World</strong> - FR</p>',
            'translation[config_names][config_translation_test.content][animals][0]' => 'kitten - FR',
            'translation[config_names][config_translation_test.content][animals][1]' => 'llama - FR',
            'translation[config_names][config_translation_test.content][animals][2]' => 'elephant - FR',
        ];
        $this->drupalGet('admin/config/media/file-system/translate/fr/add');
        $this->submitForm($edit, 'Save translation');
        $this->container
            ->get('language.config_factory_override')
            ->setLanguage(new Language([
            'id' => 'fr',
        ]));
        $expected = [
            'kitten - FR',
            'llama - FR',
            'elephant - FR',
        ];
        $actual = $config_factory->get('config_translation_test.content')
            ->get('animals');
        $this->assertEquals($expected, $actual);
    }
    
    /**
     * Tests text_format translation.
     */
    public function testTextFormatTranslation() {
        $this->drupalLogin($this->adminUser);
        
        /** @var \Drupal\Core\Config\ConfigFactoryInterface $config_factory */
        $config_factory = $this->container
            ->get('config.factory');
        $expected = [
            'value' => '<p><strong>Hello World</strong></p>',
            'format' => 'plain_text',
        ];
        $actual = $config_factory->get('config_translation_test.content')
            ->getOriginal('content', FALSE);
        $this->assertEquals($expected, $actual);
        $translation_base_url = 'admin/config/media/file-system/translate';
        $this->drupalGet($translation_base_url);
        // 'Add' link should be present for French translation.
        $translation_page_url = "{$translation_base_url}/fr/add";
        $this->assertSession()
            ->linkByHrefExists($translation_page_url);
        $this->drupalGet($translation_page_url);
        // Assert that changing the text format is not possible, even for an
        // administrator.
        $this->assertSession()
            ->fieldNotExists('translation[config_names][config_translation_test.content][content][format]');
        // Update translatable fields.
        $edit = [
            'translation[config_names][config_translation_test.content][content][value]' => '<p><strong>Hello World</strong> - FR</p>',
        ];
        // Save language specific version of form.
        $this->drupalGet($translation_page_url);
        $this->submitForm($edit, 'Save translation');
        // Get translation and check we've got the right value.
        $expected = [
            'value' => '<p><strong>Hello World</strong> - FR</p>',
            'format' => 'plain_text',
        ];
        $this->container
            ->get('language.config_factory_override')
            ->setLanguage(new Language([
            'id' => 'fr',
        ]));
        $actual = $config_factory->get('config_translation_test.content')
            ->get('content');
        $this->assertEquals($expected, $actual);
        // Change the text format of the source configuration and verify that the
        // text format of the translation does not change because that could lead to
        // security vulnerabilities.
        $config_factory->getEditable('config_translation_test.content')
            ->set('content.format', 'full_html')
            ->save();
        $actual = $config_factory->get('config_translation_test.content')
            ->get('content');
        // The translation should not have changed, so re-use $expected.
        $this->assertEquals($expected, $actual);
        // Because the text is now in a text format that the translator does not
        // have access to, the translator should not be able to translate it.
        $translation_page_url = "{$translation_base_url}/fr/edit";
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet($translation_page_url);
        $this->assertDisabledTextarea('edit-translation-config-names-config-translation-testcontent-content-value');
        $this->submitForm([], 'Save translation');
        // Check that submitting the form did not update the text format of the
        // translation.
        $actual = $config_factory->get('config_translation_test.content')
            ->get('content');
        $this->assertEquals($expected, $actual);
        // The administrator must explicitly change the text format.
        $this->drupalLogin($this->adminUser);
        $edit = [
            'translation[config_names][config_translation_test.content][content][format]' => 'full_html',
        ];
        $this->drupalGet($translation_page_url);
        $this->submitForm($edit, 'Save translation');
        $expected = [
            'value' => '<p><strong>Hello World</strong> - FR</p>',
            'format' => 'full_html',
        ];
        $actual = $config_factory->get('config_translation_test.content')
            ->get('content');
        $this->assertEquals($expected, $actual);
    }
    
    /**
     * Tests field translation for node fields.
     */
    public function testNodeFieldTranslation() {
        NodeType::create([
            'type' => 'article',
            'name' => 'Article',
        ])->save();
        $field_name = 'translatable_field';
        $field_storage = FieldStorageConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'node',
            'type' => 'text',
        ]);
        $field_storage->setSetting('translatable_storage_setting', 'translatable_storage_setting');
        $field_storage->save();
        $field = FieldConfig::create([
            'field_name' => $field_name,
            'entity_type' => 'node',
            'bundle' => 'article',
        ]);
        $field->save();
        $this->drupalLogin($this->translatorUser);
        $this->drupalGet("/entity_test/structure/article/fields/node.article.{$field_name}/translate");
        $this->clickLink('Add');
        $form_values = [
            'translation[config_names][field.field.node.article.translatable_field][description]' => 'FR Help text.',
            'translation[config_names][field.field.node.article.translatable_field][label]' => 'FR label',
        ];
        $this->submitForm($form_values, 'Save translation');
        $this->assertSession()
            ->pageTextContains('Successfully saved French translation.');
        // Check that the translations are saved.
        $this->clickLink('Add');
        $this->assertSession()
            ->responseContains('FR label');
    }
    
    /**
     * Test translation save confirmation message.
     */
    public function testMenuTranslationWithoutChange() {
        $this->drupalLogin($this->adminUser);
        $this->drupalGet('admin/structure/menu/manage/main/translate/tyv/add');
        $this->submitForm([], 'Save translation');
        $this->assertSession()
            ->pageTextContains('Tuvan translation was not added. To add a translation, you must modify the configuration.');
        $this->drupalGet('admin/structure/menu/manage/main/translate/tyv/add');
        $edit = [
            'translation[config_names][system.menu.main][label]' => 'Main navigation Translation',
            'translation[config_names][system.menu.main][description]' => 'Site section links Translation',
        ];
        $this->submitForm($edit, 'Save translation');
        $this->assertSession()
            ->pageTextContains('Successfully saved Tuvan translation.');
    }
    
    /**
     * Gets translation from locale storage.
     *
     * @param $config_name
     *   Configuration object.
     * @param $key
     *   Translation configuration field key.
     * @param $langcode
     *   String language code to load translation.
     *
     * @return bool|mixed
     *   Returns translation if exists, FALSE otherwise.
     */
    protected function getTranslation($config_name, $key, $langcode) {
        $settings_locations = $this->localeStorage
            ->getLocations([
            'type' => 'configuration',
            'name' => $config_name,
        ]);
        $this->assertNotEmpty($settings_locations, "{$config_name} should have configuration locations.");
        if (!empty($settings_locations)) {
            $source = $this->container
                ->get('config.factory')
                ->get($config_name)
                ->get($key);
            $source_string = $this->localeStorage
                ->findString([
                'source' => $source,
                'type' => 'configuration',
            ]);
            $this->assertNotEmpty($source_string, "{$config_name}.{$key} should have a source string.");
            if (!empty($source_string)) {
                $conditions = [
                    'lid' => $source_string->lid,
                    'language' => $langcode,
                ];
                $translations = $this->localeStorage
                    ->getTranslations($conditions + [
                    'translated' => TRUE,
                ]);
                return reset($translations);
            }
        }
        return FALSE;
    }
    
    /**
     * Sets site name and slogan for default language, helps in tests.
     *
     * @param string $site_name
     *   The site name.
     * @param string $site_slogan
     *   The site slogan.
     */
    protected function setSiteInformation($site_name, $site_slogan) {
        $edit = [
            'site_name' => $site_name,
            'site_slogan' => $site_slogan,
        ];
        $this->drupalGet('admin/config/system/site-information');
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->pageTextContains('The configuration options have been saved.');
    }
    
    /**
     * Get server-rendered contextual links for the given contextual link ids.
     *
     * @param array $ids
     *   An array of contextual link ids.
     * @param string $current_path
     *   The Drupal path for the page for which the contextual links are rendered.
     *
     * @return string
     *   The response body.
     */
    protected function renderContextualLinks($ids, $current_path) {
        $post = [];
        for ($i = 0; $i < count($ids); $i++) {
            $post['ids[' . $i . ']'] = $ids[$i];
        }
        return $this->drupalPostWithFormat('contextual/render', 'json', $post, [
            'query' => [
                'destination' => $current_path,
            ],
        ]);
    }
    
    /**
     * Asserts that a textarea with a given ID has been disabled from editing.
     *
     * @param string $id
     *   The HTML ID of the textarea.
     *
     * @internal
     */
    protected function assertDisabledTextarea(string $id) : void {
        $textarea = $this->assertSession()
            ->fieldDisabled($id);
        $this->assertSame('textarea', $textarea->getTagName());
        $this->assertSame('This field has been disabled because you do not have sufficient permissions to edit it.', $textarea->getText());
        // Make sure the text format select is not shown.
        $select_id = str_replace('value', 'format--2', $id);
        $xpath = $this->assertSession()
            ->buildXPathQuery('//select[@id=:id]', [
            ':id' => $select_id,
        ]);
        $this->assertSession()
            ->elementNotExists('xpath', $xpath);
    }
    
    /**
     * Helper function that returns a .po file with a given number of plural forms.
     */
    public function getPoFile($plurals) {
        $po_file = [];
        $po_file[1] = <<<EOF
msgid ""
msgstr ""
"Project-Id-Version: Drupal 8\\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=UTF-8\\n"
"Content-Transfer-Encoding: 8bit\\n"
"Plural-Forms: nplurals=1; plural=0;\\n"
EOF;
        $po_file[2] = <<<EOF
msgid ""
msgstr ""
"Project-Id-Version: Drupal 8\\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=UTF-8\\n"
"Content-Transfer-Encoding: 8bit\\n"
"Plural-Forms: nplurals=2; plural=(n>1);\\n"
EOF;
        $po_file[4] = <<<EOF
msgid ""
msgstr ""
"Project-Id-Version: Drupal 8\\n"
"MIME-Version: 1.0\\n"
"Content-Type: text/plain; charset=UTF-8\\n"
"Content-Transfer-Encoding: 8bit\\n"
"Plural-Forms: nplurals=4; plural=(((n%100)==1)?(0):(((n%100)==2)?(1):((((n%100)==3)||((n%100)==4))?(2):3)));\\n"
EOF;
        return $po_file[$plurals];
    }

}