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