--- /dev/null
+<?php
+
+namespace Drupal\Tests\language\Functional;
+
+use Drupal\language\Entity\ConfigurableLanguage;
+use Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationUrl;
+use Drupal\menu_link_content\Entity\MenuLinkContent;
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Functional tests for the language switching feature.
+ *
+ * @group language
+ */
+class LanguageSwitchingTest extends BrowserTestBase {
+
+ /**
+ * Modules to enable.
+ *
+ * @var array
+ */
+ public static $modules = ['locale', 'locale_test', 'language', 'block', 'language_test', 'menu_ui'];
+
+ protected function setUp() {
+ parent::setUp();
+
+ // Create and log in user.
+ $admin_user = $this->drupalCreateUser(['administer blocks', 'administer languages', 'access administration pages']);
+ $this->drupalLogin($admin_user);
+ }
+
+ /**
+ * Functional tests for the language switcher block.
+ */
+ public function testLanguageBlock() {
+ // Add language.
+ $edit = [
+ 'predefined_langcode' => 'fr',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+
+ // Set the native language name.
+ $this->saveNativeLanguageName('fr', 'français');
+
+ // Enable URL language detection and selection.
+ $edit = ['language_interface[enabled][language-url]' => '1'];
+ $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
+
+ // Enable the language switching block.
+ $block = $this->drupalPlaceBlock('language_block:' . LanguageInterface::TYPE_INTERFACE, [
+ 'id' => 'test_language_block',
+ // Ensure a 2-byte UTF-8 sequence is in the tested output.
+ 'label' => $this->randomMachineName(8) . '×',
+ ]);
+
+ $this->doTestLanguageBlockAuthenticated($block->label());
+ $this->doTestLanguageBlockAnonymous($block->label());
+ }
+
+ /**
+ * For authenticated users, the "active" class is set by JavaScript.
+ *
+ * @param string $block_label
+ * The label of the language switching block.
+ *
+ * @see testLanguageBlock()
+ */
+ protected function doTestLanguageBlockAuthenticated($block_label) {
+ // Assert that the language switching block is displayed on the frontpage.
+ $this->drupalGet('');
+ $this->assertText($block_label, 'Language switcher block found.');
+
+ // Assert that each list item and anchor element has the appropriate data-
+ // attributes.
+ $language_switchers = $this->xpath('//div[@id=:id]/ul/li', [':id' => 'block-test-language-block']);
+ $list_items = [];
+ $anchors = [];
+ $labels = [];
+ foreach ($language_switchers as $list_item) {
+ $classes = explode(" ", $list_item->getAttribute('class'));
+ list($langcode) = array_intersect($classes, ['en', 'fr']);
+ $list_items[] = [
+ 'langcode_class' => $langcode,
+ 'data-drupal-link-system-path' => $list_item->getAttribute('data-drupal-link-system-path'),
+ ];
+
+ $link = $list_item->find('xpath', 'a');
+ $anchors[] = [
+ 'hreflang' => $link->getAttribute('hreflang'),
+ 'data-drupal-link-system-path' => $link->getAttribute('data-drupal-link-system-path'),
+ ];
+ $labels[] = $link->getText();
+ }
+ $expected_list_items = [
+ 0 => ['langcode_class' => 'en', 'data-drupal-link-system-path' => 'user/2'],
+ 1 => ['langcode_class' => 'fr', 'data-drupal-link-system-path' => 'user/2'],
+ ];
+ $this->assertIdentical($list_items, $expected_list_items, 'The list items have the correct attributes that will allow the drupal.active-link library to mark them as active.');
+ $expected_anchors = [
+ 0 => ['hreflang' => 'en', 'data-drupal-link-system-path' => 'user/2'],
+ 1 => ['hreflang' => 'fr', 'data-drupal-link-system-path' => 'user/2'],
+ ];
+ $this->assertIdentical($anchors, $expected_anchors, 'The anchors have the correct attributes that will allow the drupal.active-link library to mark them as active.');
+ $settings = $this->getDrupalSettings();
+ $this->assertIdentical($settings['path']['currentPath'], 'user/2', 'drupalSettings.path.currentPath is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['isFront'], FALSE, 'drupalSettings.path.isFront is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['currentLanguage'], 'en', 'drupalSettings.path.currentLanguage is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($labels, ['English', 'français'], 'The language links labels are in their own language on the language switcher block.');
+ }
+
+ /**
+ * For anonymous users, the "active" class is set by PHP.
+ *
+ * @param string $block_label
+ * The label of the language switching block.
+ *
+ * @see testLanguageBlock()
+ */
+ protected function doTestLanguageBlockAnonymous($block_label) {
+ $this->drupalLogout();
+
+ // Assert that the language switching block is displayed on the frontpage
+ // and ensure that the active class is added when query params are present.
+ $this->drupalGet('', ['query' => ['foo' => 'bar']]);
+ $this->assertText($block_label, 'Language switcher block found.');
+
+ // Assert that only the current language is marked as active.
+ $language_switchers = $this->xpath('//div[@id=:id]/ul/li', [':id' => 'block-test-language-block']);
+ $links = [
+ 'active' => [],
+ 'inactive' => [],
+ ];
+ $anchors = [
+ 'active' => [],
+ 'inactive' => [],
+ ];
+ $labels = [];
+ foreach ($language_switchers as $list_item) {
+ $classes = explode(" ", $list_item->getAttribute('class'));
+ list($langcode) = array_intersect($classes, ['en', 'fr']);
+ if (in_array('is-active', $classes)) {
+ $links['active'][] = $langcode;
+ }
+ else {
+ $links['inactive'][] = $langcode;
+ }
+
+ $link = $list_item->find('xpath', 'a');
+ $anchor_classes = explode(" ", $link->getAttribute('class'));
+ if (in_array('is-active', $anchor_classes)) {
+ $anchors['active'][] = $langcode;
+ }
+ else {
+ $anchors['inactive'][] = $langcode;
+ }
+ $labels[] = $link->getText();
+ }
+ $this->assertIdentical($links, ['active' => ['en'], 'inactive' => ['fr']], 'Only the current language list item is marked as active on the language switcher block.');
+ $this->assertIdentical($anchors, ['active' => ['en'], 'inactive' => ['fr']], 'Only the current language anchor is marked as active on the language switcher block.');
+ $this->assertIdentical($labels, ['English', 'français'], 'The language links labels are in their own language on the language switcher block.');
+ }
+
+ /**
+ * Test language switcher links for domain based negotiation.
+ */
+ public function testLanguageBlockWithDomain() {
+ // Add the Italian language.
+ ConfigurableLanguage::createFromLangcode('it')->save();
+
+ // Rebuild the container so that the new language is picked up by services
+ // that hold a list of languages.
+ $this->rebuildContainer();
+
+ $languages = $this->container->get('language_manager')->getLanguages();
+
+ // Enable browser and URL language detection.
+ $edit = [
+ 'language_interface[enabled][language-url]' => TRUE,
+ 'language_interface[weight][language-url]' => -10,
+ ];
+ $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
+
+ // Do not allow blank domain.
+ $edit = [
+ 'language_negotiation_url_part' => LanguageNegotiationUrl::CONFIG_DOMAIN,
+ 'domain[en]' => '',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/detection/url', $edit, t('Save configuration'));
+ $this->assertText(t('The domain may not be left blank for English'), 'The form does not allow blank domains.');
+
+ // Change the domain for the Italian language.
+ $edit = [
+ 'language_negotiation_url_part' => LanguageNegotiationUrl::CONFIG_DOMAIN,
+ 'domain[en]' => \Drupal::request()->getHost(),
+ 'domain[it]' => 'it.example.com',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/detection/url', $edit, t('Save configuration'));
+ $this->assertText(t('The configuration options have been saved'), 'Domain configuration is saved.');
+
+ // Enable the language switcher block.
+ $this->drupalPlaceBlock('language_block:' . LanguageInterface::TYPE_INTERFACE, ['id' => 'test_language_block']);
+
+ $this->drupalGet('');
+
+ /** @var \Drupal\Core\Routing\UrlGenerator $generator */
+ $generator = $this->container->get('url_generator');
+
+ // Verify the English URL is correct
+ list($english_link) = $this->xpath('//div[@id=:id]/ul/li/a[@hreflang=:hreflang]', [
+ ':id' => 'block-test-language-block',
+ ':hreflang' => 'en',
+ ]);
+ $english_url = $generator->generateFromRoute('entity.user.canonical', ['user' => 2], ['language' => $languages['en']]);
+ $this->assertEqual($english_url, $english_link->getAttribute('href'));
+
+ // Verify the Italian URL is correct
+ list($italian_link) = $this->xpath('//div[@id=:id]/ul/li/a[@hreflang=:hreflang]', [
+ ':id' => 'block-test-language-block',
+ ':hreflang' => 'it',
+ ]);
+ $italian_url = $generator->generateFromRoute('entity.user.canonical', ['user' => 2], ['language' => $languages['it']]);
+ $this->assertEqual($italian_url, $italian_link->getAttribute('href'));
+ }
+
+ /**
+ * Test active class on links when switching languages.
+ */
+ public function testLanguageLinkActiveClass() {
+ // Add language.
+ $edit = [
+ 'predefined_langcode' => 'fr',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+
+ // Enable URL language detection and selection.
+ $edit = ['language_interface[enabled][language-url]' => '1'];
+ $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
+
+ $this->doTestLanguageLinkActiveClassAuthenticated();
+ $this->doTestLanguageLinkActiveClassAnonymous();
+ }
+
+ /**
+ * Check the path-admin class, as same as on default language.
+ */
+ public function testLanguageBodyClass() {
+ $searched_class = 'path-admin';
+
+ // Add language.
+ $edit = [
+ 'predefined_langcode' => 'fr',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+
+ // Enable URL language detection and selection.
+ $edit = ['language_interface[enabled][language-url]' => '1'];
+ $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
+
+ // Check if the default (English) admin/config page has the right class.
+ $this->drupalGet('admin/config');
+ $class = $this->xpath('//body[contains(@class, :class)]', [':class' => $searched_class]);
+ $this->assertTrue(isset($class[0]), t('The path-admin class appears on default language.'));
+
+ // Check if the French admin/config page has the right class.
+ $this->drupalGet('fr/admin/config');
+ $class = $this->xpath('//body[contains(@class, :class)]', [':class' => $searched_class]);
+ $this->assertTrue(isset($class[0]), t('The path-admin class same as on default language.'));
+
+ // The testing profile sets the user/login page as the frontpage. That
+ // redirects authenticated users to their profile page, so check with an
+ // anonymous user instead.
+ $this->drupalLogout();
+
+ // Check if the default (English) frontpage has the right class.
+ $this->drupalGet('<front>');
+ $class = $this->xpath('//body[contains(@class, :class)]', [':class' => 'path-frontpage']);
+ $this->assertTrue(isset($class[0]), 'path-frontpage class found on the body tag');
+
+ // Check if the French frontpage has the right class.
+ $this->drupalGet('fr');
+ $class = $this->xpath('//body[contains(@class, :class)]', [':class' => 'path-frontpage']);
+ $this->assertTrue(isset($class[0]), 'path-frontpage class found on the body tag with french as the active language');
+
+ }
+
+ /**
+ * For authenticated users, the "active" class is set by JavaScript.
+ *
+ * @see testLanguageLinkActiveClass()
+ */
+ protected function doTestLanguageLinkActiveClassAuthenticated() {
+ $function_name = '#type link';
+ $path = 'language_test/type-link-active-class';
+
+ // Test links generated by the link generator on an English page.
+ $current_language = 'English';
+ $this->drupalGet($path);
+
+ // Language code 'none' link should be active.
+ $langcode = 'none';
+ $links = $this->xpath('//a[@id = :id and @data-drupal-link-system-path = :path]', [':id' => 'no_lang_link', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'en' link should be active.
+ $langcode = 'en';
+ $links = $this->xpath('//a[@id = :id and @hreflang = :lang and @data-drupal-link-system-path = :path]', [':id' => 'en_link', ':lang' => 'en', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'fr' link should not be active.
+ $langcode = 'fr';
+ $links = $this->xpath('//a[@id = :id and @hreflang = :lang and @data-drupal-link-system-path = :path]', [':id' => 'fr_link', ':lang' => 'fr', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to NOT mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Verify that drupalSettings contains the correct values.
+ $settings = $this->getDrupalSettings();
+ $this->assertIdentical($settings['path']['currentPath'], $path, 'drupalSettings.path.currentPath is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['isFront'], FALSE, 'drupalSettings.path.isFront is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['currentLanguage'], 'en', 'drupalSettings.path.currentLanguage is set correctly to allow drupal.active-link to mark the correct links as active.');
+
+ // Test links generated by the link generator on a French page.
+ $current_language = 'French';
+ $this->drupalGet('fr/language_test/type-link-active-class');
+
+ // Language code 'none' link should be active.
+ $langcode = 'none';
+ $links = $this->xpath('//a[@id = :id and @data-drupal-link-system-path = :path]', [':id' => 'no_lang_link', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'en' link should not be active.
+ $langcode = 'en';
+ $links = $this->xpath('//a[@id = :id and @hreflang = :lang and @data-drupal-link-system-path = :path]', [':id' => 'en_link', ':lang' => 'en', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to NOT mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'fr' link should be active.
+ $langcode = 'fr';
+ $links = $this->xpath('//a[@id = :id and @hreflang = :lang and @data-drupal-link-system-path = :path]', [':id' => 'fr_link', ':lang' => 'fr', ':path' => $path]);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode has the correct attributes that will allow the drupal.active-link library to mark it as active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Verify that drupalSettings contains the correct values.
+ $settings = $this->getDrupalSettings();
+ $this->assertIdentical($settings['path']['currentPath'], $path, 'drupalSettings.path.currentPath is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['isFront'], FALSE, 'drupalSettings.path.isFront is set correctly to allow drupal.active-link to mark the correct links as active.');
+ $this->assertIdentical($settings['path']['currentLanguage'], 'fr', 'drupalSettings.path.currentLanguage is set correctly to allow drupal.active-link to mark the correct links as active.');
+ }
+
+ /**
+ * For anonymous users, the "active" class is set by PHP.
+ *
+ * @see testLanguageLinkActiveClass()
+ */
+ protected function doTestLanguageLinkActiveClassAnonymous() {
+ $function_name = '#type link';
+
+ $this->drupalLogout();
+
+ // Test links generated by the link generator on an English page.
+ $current_language = 'English';
+ $this->drupalGet('language_test/type-link-active-class');
+
+ // Language code 'none' link should be active.
+ $langcode = 'none';
+ $links = $this->xpath('//a[@id = :id and contains(@class, :class)]', [':id' => 'no_lang_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'en' link should be active.
+ $langcode = 'en';
+ $links = $this->xpath('//a[@id = :id and contains(@class, :class)]', [':id' => 'en_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'fr' link should not be active.
+ $langcode = 'fr';
+ $links = $this->xpath('//a[@id = :id and not(contains(@class, :class))]', [':id' => 'fr_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is NOT marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Test links generated by the link generator on a French page.
+ $current_language = 'French';
+ $this->drupalGet('fr/language_test/type-link-active-class');
+
+ // Language code 'none' link should be active.
+ $langcode = 'none';
+ $links = $this->xpath('//a[@id = :id and contains(@class, :class)]', [':id' => 'no_lang_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'en' link should not be active.
+ $langcode = 'en';
+ $links = $this->xpath('//a[@id = :id and not(contains(@class, :class))]', [':id' => 'en_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is NOT marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+
+ // Language code 'fr' link should be active.
+ $langcode = 'fr';
+ $links = $this->xpath('//a[@id = :id and contains(@class, :class)]', [':id' => 'fr_link', ':class' => 'is-active']);
+ $this->assertTrue(isset($links[0]), t('A link generated by :function to the current :language page with langcode :langcode is marked active.', [':function' => $function_name, ':language' => $current_language, ':langcode' => $langcode]));
+ }
+
+ /**
+ * Tests language switcher links for session based negotiation.
+ */
+ public function testLanguageSessionSwitchLinks() {
+ // Add language.
+ $edit = [
+ 'predefined_langcode' => 'fr',
+ ];
+ $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+
+ // Enable session language detection and selection.
+ $edit = [
+ 'language_interface[enabled][language-url]' => FALSE,
+ 'language_interface[enabled][language-session]' => TRUE,
+ ];
+ $this->drupalPostForm('admin/config/regional/language/detection', $edit, t('Save settings'));
+
+ // Enable the language switching block.
+ $this->drupalPlaceBlock('language_block:' . LanguageInterface::TYPE_INTERFACE, [
+ 'id' => 'test_language_block',
+ ]);
+
+ // Enable the main menu block.
+ $this->drupalPlaceBlock('system_menu_block:main', [
+ 'id' => 'test_menu',
+ ]);
+
+ // Add a link to the homepage.
+ $link = MenuLinkContent::create([
+ 'title' => 'Home',
+ 'menu_name' => 'main',
+ 'bundle' => 'menu_link_content',
+ 'link' => [['uri' => 'entity:user/2']],
+ ]);
+ $link->save();
+
+ // Go to the homepage.
+ $this->drupalGet('');
+ // Click on the French link.
+ $this->clickLink(t('French'));
+ // There should be a query parameter to set the session language.
+ $this->assertUrl('user/2', ['query' => ['language' => 'fr']]);
+ // Click on the 'Home' Link.
+ $this->clickLink(t('Home'));
+ // There should be no query parameter.
+ $this->assertUrl('user/2');
+ // Click on the French link.
+ $this->clickLink(t('French'));
+ // There should be no query parameter.
+ $this->assertUrl('user/2');
+ }
+
+ /**
+ * Saves the native name of a language entity in configuration as a label.
+ *
+ * @param string $langcode
+ * The language code of the language.
+ * @param string $label
+ * The native name of the language.
+ */
+ protected function saveNativeLanguageName($langcode, $label) {
+ \Drupal::service('language.config_factory_override')
+ ->getOverride($langcode, 'language.entity.' . $langcode)->set('label', $label)->save();
+ }
+
+}