class LanguageSwitchingTest in Drupal 8

Same name and namespace in other branches

9 core/modules/language/tests/src/Functional/LanguageSwitchingTest.php \Drupal\Tests\language\Functional\LanguageSwitchingTest
10 core/modules/language/tests/src/Functional/LanguageSwitchingTest.php \Drupal\Tests\language\Functional\LanguageSwitchingTest

Functional tests for the language switching feature.

@group language

Hierarchy

class \Drupal\Tests\BrowserTestBase extends \PHPUnit\Framework\TestCase uses FunctionalTestSetupTrait, TestSetupTrait, AssertLegacyTrait, BlockCreationTrait, ConfigTestTrait, ContentTypeCreationTrait, NodeCreationTrait, PhpunitCompatibilityTrait, RandomGeneratorTrait, TestRequirementsTrait, UiHelperTrait, UserCreationTrait, XdebugRequestTrait
- class \Drupal\Tests\language\Functional\LanguageSwitchingTest

Expanded class hierarchy of LanguageSwitchingTest

File

core/modules/language/tests/src/Functional/LanguageSwitchingTest.php, line 16

Namespace

Drupal\Tests\language\Functional

View source

class LanguageSwitchingTest extends BrowserTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = [
    'locale',
    'locale_test',
    'language',
    'block',
    'language_test',
    'menu_ui',
  ];

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'classy';
  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 $block_label
   *   The label of the language switching block.
   *
   * @see self::testLanguageBlock()
   */
  protected function doTestLanguageBlockAuthenticated($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 $block_label
   *   The label of the language switching block.
   *
   * @see self::testLanguageBlock()
   */
  protected function doTestLanguageBlockAnonymous($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 self::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 self::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();
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AssertHelperTrait::castSafeStrings	protected static	function	Casts MarkupInterface objects into strings.
AssertLegacyTrait::assert	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::assertCacheTag	protected	function	Asserts whether an expected cache tag was present in the last response.
AssertLegacyTrait::assertElementNotPresent	protected	function	Asserts that the element with the given CSS selector is not present.
AssertLegacyTrait::assertElementPresent	protected	function	Asserts that the element with the given CSS selector is present.
AssertLegacyTrait::assertEqual	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertEscaped	protected	function	Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertLegacyTrait::assertField	protected	function	Asserts that a field exists with the given name or ID.
AssertLegacyTrait::assertFieldById	protected	function	Asserts that a field exists with the given ID and value.
AssertLegacyTrait::assertFieldByName	protected	function	Asserts that a field exists with the given name and value.
AssertLegacyTrait::assertFieldByXPath	protected	function	Asserts that a field exists in the current page by the given XPath.
AssertLegacyTrait::assertFieldChecked	protected	function	Asserts that a checkbox field in the current page is checked.
AssertLegacyTrait::assertFieldsByValue	protected	function	Asserts that a field exists in the current page with a given Xpath result.
AssertLegacyTrait::assertHeader	protected	function	Checks that current response header equals value.
AssertLegacyTrait::assertIdentical	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertSame() instead.
AssertLegacyTrait::assertIdenticalObject	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertEquals() instead.
AssertLegacyTrait::assertLink	protected	function	Passes if a link with the specified label is found.
AssertLegacyTrait::assertLinkByHref	protected	function	Passes if a link containing a given href (part) is found.
AssertLegacyTrait::assertNoCacheTag	protected	function	Asserts whether an expected cache tag was absent in the last response.
AssertLegacyTrait::assertNoEscaped	protected	function	Passes if the raw text is not found escaped on the loaded page.
AssertLegacyTrait::assertNoField	protected	function	Asserts that a field does NOT exist with the given name or ID.
AssertLegacyTrait::assertNoFieldById	protected	function	Asserts that a field does not exist with the given ID and value.
AssertLegacyTrait::assertNoFieldByName	protected	function	Asserts that a field does not exist with the given name and value.
AssertLegacyTrait::assertNoFieldByXPath	protected	function	Asserts that a field does not exist or its value does not match, by XPath.
AssertLegacyTrait::assertNoFieldChecked	protected	function	Asserts that a checkbox field in the current page is not checked.
AssertLegacyTrait::assertNoLink	protected	function	Passes if a link with the specified label is not found.
AssertLegacyTrait::assertNoLinkByHref	protected	function	Passes if a link containing a given href (part) is not found.
AssertLegacyTrait::assertNoOption	protected	function	Asserts that a select option does NOT exist in the current page.
AssertLegacyTrait::assertNoPattern	protected	function	Triggers a pass if the Perl regex pattern is not found in the raw content.
AssertLegacyTrait::assertNoRaw	protected	function	Passes if the raw text IS not found on the loaded page, fail otherwise.	1
AssertLegacyTrait::assertNotEqual	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotEquals() instead.
AssertLegacyTrait::assertNoText	protected	function	Passes if the page (with HTML stripped) does not contains the text.	1
AssertLegacyTrait::assertNotIdentical	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertNotSame() instead.
AssertLegacyTrait::assertNoUniqueText	protected	function	Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertLegacyTrait::assertOption	protected	function	Asserts that a select option in the current page exists.
AssertLegacyTrait::assertOptionByText	protected	function	Asserts that a select option with the visible text exists.
AssertLegacyTrait::assertOptionSelected	protected	function	Asserts that a select option in the current page is checked.
AssertLegacyTrait::assertPattern	protected	function	Triggers a pass if the Perl regex pattern is found in the raw content.
AssertLegacyTrait::assertRaw	protected	function	Passes if the raw text IS found on the loaded page, fail otherwise.	1
AssertLegacyTrait::assertResponse	protected	function	Asserts the page responds with the specified response code.	1
AssertLegacyTrait::assertText	protected	function	Passes if the page (with HTML stripped) contains the text.	1
AssertLegacyTrait::assertTextHelper	protected	function	Helper for assertText and assertNoText.
AssertLegacyTrait::assertTitle	protected	function	Pass if the page title is the given string.
AssertLegacyTrait::assertUniqueText	protected	function	Passes if the text is found ONLY ONCE on the text version of the page.
AssertLegacyTrait::assertUrl	protected	function	Passes if the internal browser's URL matches the given path.
AssertLegacyTrait::buildXPathQuery	protected	function	Builds an XPath query.
AssertLegacyTrait::constructFieldXpath	protected	function	Helper: Constructs an XPath for the given set of attributes and value.
AssertLegacyTrait::getAllOptions	protected	function	Get all option elements, including nested options, in a select.
AssertLegacyTrait::getRawContent	protected	function	Gets the current raw content.
AssertLegacyTrait::pass	protected	function	Deprecated Scheduled for removal in Drupal 10.0.0. Use self::assertTrue() instead.
AssertLegacyTrait::verbose	protected	function
BlockCreationTrait::placeBlock	protected	function	Creates a block instance based on default settings. Aliased as: drupalPlaceBlock
BrowserHtmlDebugTrait::$htmlOutputBaseUrl	protected	property	The Base URI to use for links to the output files.
BrowserHtmlDebugTrait::$htmlOutputClassName	protected	property	Class name for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputCounter	protected	property	Counter for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputCounterStorage	protected	property	Counter storage for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputDirectory	protected	property	Directory name for HTML output logging.
BrowserHtmlDebugTrait::$htmlOutputEnabled	protected	property	HTML output output enabled.
BrowserHtmlDebugTrait::$htmlOutputFile	protected	property	The file name to write the list of URLs to.
BrowserHtmlDebugTrait::$htmlOutputTestId	protected	property	HTML output test ID.
BrowserHtmlDebugTrait::formatHtmlOutputHeaders	protected	function	Formats HTTP headers as string for HTML output logging.
BrowserHtmlDebugTrait::getHtmlOutputHeaders	protected	function	Returns headers in HTML output format.	1
BrowserHtmlDebugTrait::htmlOutput	protected	function	Logs a HTML output message in a text file.
BrowserHtmlDebugTrait::initBrowserOutputFile	protected	function	Creates the directory to store browser output.
BrowserTestBase::$baseUrl	protected	property	The base URL.
BrowserTestBase::$configImporter	protected	property	The config importer that can be used in a test.
BrowserTestBase::$customTranslations	protected	property	An array of custom translations suitable for drupal_rewrite_settings().
BrowserTestBase::$databasePrefix	protected	property	The database prefix of this test run.
BrowserTestBase::$mink	protected	property	Mink session manager.
BrowserTestBase::$minkDefaultDriverArgs	protected	property
BrowserTestBase::$minkDefaultDriverClass	protected	property		1
BrowserTestBase::$originalContainer	protected	property	The original container.
BrowserTestBase::$originalShutdownCallbacks	protected	property	The original array of shutdown function callbacks.
BrowserTestBase::$preserveGlobalState	protected	property
BrowserTestBase::$profile	protected	property	The profile to install as a basis for testing.	39
BrowserTestBase::$root	protected	property	The app root.
BrowserTestBase::$runTestInSeparateProcess	protected	property	Browser tests are run in separate processes to prevent collisions between code that may be loaded by tests.
BrowserTestBase::$timeLimit	protected	property	Time limit in seconds for the test.
BrowserTestBase::$translationFilesDirectory	protected	property	The translation file directory for the test environment.
BrowserTestBase::cleanupEnvironment	protected	function	Clean up the Simpletest environment.
BrowserTestBase::config	protected	function	Configuration accessor for tests. Returns non-overridden configuration.
BrowserTestBase::cssSelectToXpath	protected	function	Translates a CSS expression to its XPath equivalent.
BrowserTestBase::drupalGetHeader	protected	function	Gets the value of an HTTP response header.
BrowserTestBase::drupalGetHeaders Deprecated	protected	function	Returns all response headers.
BrowserTestBase::filePreDeleteCallback	public static	function	Ensures test files are deletable.
BrowserTestBase::getDefaultDriverInstance	protected	function	Gets an instance of the default Mink driver.
BrowserTestBase::getDrupalSettings	protected	function	Gets the JavaScript drupalSettings variable for the currently-loaded page.	1
BrowserTestBase::getHttpClient	protected	function	Obtain the HTTP client for the system under test.
BrowserTestBase::getMinkDriverArgs	protected	function	Get the Mink driver args from an environment variable, if it is set. Can be overridden in a derived class so it is possible to use a different value for a subset of tests, e.g. the JavaScript tests.	1
BrowserTestBase::getOptions	protected	function	Helper function to get the options of select field.
BrowserTestBase::getResponseLogHandler	protected	function	Provides a Guzzle middleware handler to log every response received. Overrides BrowserHtmlDebugTrait::getResponseLogHandler
BrowserTestBase::getSession	public	function	Returns Mink session.
BrowserTestBase::getSessionCookies	protected	function	Get session cookies from current session.
BrowserTestBase::getTestMethodCaller	protected	function	Retrieves the current calling line in the class under test. Overrides BrowserHtmlDebugTrait::getTestMethodCaller
BrowserTestBase::initFrontPage	protected	function	Visits the front page when initializing Mink.	3
BrowserTestBase::initMink	protected	function	Initializes Mink sessions.	1
BrowserTestBase::installDrupal	public	function	Installs Drupal into the Simpletest site.	1
BrowserTestBase::registerSessions	protected	function	Registers additional Mink sessions.
BrowserTestBase::tearDown	protected	function		3
BrowserTestBase::translatePostValues	protected	function	Transforms a nested array into a flat array suitable for drupalPostForm().
BrowserTestBase::xpath	protected	function	Performs an xpath search on the contents of the internal browser.
BrowserTestBase::__construct	public	function		1
BrowserTestBase::__sleep	public	function	Prevents serializing any properties.
ConfigTestTrait::configImporter	protected	function	Returns a ConfigImporter object to import test configuration.
ConfigTestTrait::copyConfig	protected	function	Copies configuration objects from source storage to target storage.
ContentTypeCreationTrait::createContentType	protected	function	Creates a custom content type based on default settings. Aliased as: drupalCreateContentType	1
FunctionalTestSetupTrait::$apcuEnsureUniquePrefix	protected	property	The flag to set 'apcu_ensure_unique_prefix' setting.	1
FunctionalTestSetupTrait::$classLoader	protected	property	The class loader to use for installation and initialization of setup.
FunctionalTestSetupTrait::$configDirectories Deprecated	protected	property	The config directories used in this test.
FunctionalTestSetupTrait::$rootUser	protected	property	The "#1" admin user.
FunctionalTestSetupTrait::doInstall	protected	function	Execute the non-interactive installer.	1
FunctionalTestSetupTrait::getDatabaseTypes	protected	function	Returns all supported database driver installer objects.
FunctionalTestSetupTrait::initConfig	protected	function	Initialize various configurations post-installation.	2
FunctionalTestSetupTrait::initKernel	protected	function	Initializes the kernel after installation.
FunctionalTestSetupTrait::initSettings	protected	function	Initialize settings created during install.
FunctionalTestSetupTrait::initUserSession	protected	function	Initializes user 1 for the site to be installed.
FunctionalTestSetupTrait::installDefaultThemeFromClassProperty	protected	function	Installs the default theme defined by `static::$defaultTheme` when needed.
FunctionalTestSetupTrait::installModulesFromClassProperty	protected	function	Install modules defined by `static::$modules`.	1
FunctionalTestSetupTrait::installParameters	protected	function	Returns the parameters that will be used when Simpletest installs Drupal.	9
FunctionalTestSetupTrait::prepareEnvironment	protected	function	Prepares the current environment for running the test.	23
FunctionalTestSetupTrait::prepareRequestForGenerator	protected	function	Creates a mock request and sets it on the generator.
FunctionalTestSetupTrait::prepareSettings	protected	function	Prepares site settings and services before installation.	2
FunctionalTestSetupTrait::rebuildAll	protected	function	Resets and rebuilds the environment after setup.
FunctionalTestSetupTrait::rebuildContainer	protected	function	Rebuilds \Drupal::getContainer().
FunctionalTestSetupTrait::resetAll	protected	function	Resets all data structures after having enabled new modules.
FunctionalTestSetupTrait::setContainerParameter	protected	function	Changes parameters in the services.yml file.
FunctionalTestSetupTrait::setupBaseUrl	protected	function	Sets up the base URL based upon the environment variable.
FunctionalTestSetupTrait::writeSettings	protected	function	Rewrites the settings.php file of the test site.
LanguageSwitchingTest::$defaultTheme	protected	property	The theme to install as the default for testing. Overrides BrowserTestBase::$defaultTheme
LanguageSwitchingTest::$modules	public static	property	Modules to enable. Overrides BrowserTestBase::$modules
LanguageSwitchingTest::doTestLanguageBlockAnonymous	protected	function	For anonymous users, the "active" class is set by PHP.
LanguageSwitchingTest::doTestLanguageBlockAuthenticated	protected	function	For authenticated users, the "active" class is set by JavaScript.
LanguageSwitchingTest::doTestLanguageLinkActiveClassAnonymous	protected	function	For anonymous users, the "active" class is set by PHP.
LanguageSwitchingTest::doTestLanguageLinkActiveClassAuthenticated	protected	function	For authenticated users, the "active" class is set by JavaScript.
LanguageSwitchingTest::saveNativeLanguageName	protected	function	Saves the native name of a language entity in configuration as a label.
LanguageSwitchingTest::setUp	protected	function	Overrides BrowserTestBase::setUp
LanguageSwitchingTest::testLanguageBlock	public	function	Functional tests for the language switcher block.
LanguageSwitchingTest::testLanguageBlockWithDomain	public	function	Test language switcher links for domain based negotiation.
LanguageSwitchingTest::testLanguageBodyClass	public	function	Check the path-admin class, as same as on default language.
LanguageSwitchingTest::testLanguageLinkActiveClass	public	function	Test active class on links when switching languages.
LanguageSwitchingTest::testLanguageSessionSwitchLinks	public	function	Tests language switcher links for session based negotiation.
NodeCreationTrait::createNode	protected	function	Creates a node based on default settings. Aliased as: drupalCreateNode
NodeCreationTrait::getNodeByTitle	public	function	Get a node from the database based on its title. Aliased as: drupalGetNodeByTitle
PhpunitCompatibilityTrait::getMock Deprecated	public	function	Returns a mock object for the specified class using the available method.
PhpunitCompatibilityTrait::setExpectedException Deprecated	public	function	Compatibility layer for PHPUnit 6 to support PHPUnit 4 code.
RandomGeneratorTrait::$randomGenerator	protected	property	The random generator.
RandomGeneratorTrait::getRandomGenerator	protected	function	Gets the random generator for the utility methods.
RandomGeneratorTrait::randomMachineName	protected	function	Generates a unique random string containing letters and numbers.	1
RandomGeneratorTrait::randomObject	public	function	Generates a random PHP object.
RandomGeneratorTrait::randomString	public	function	Generates a pseudo-random string of ASCII characters of codes 32 to 126.
RandomGeneratorTrait::randomStringValidate	public	function	Callback for random string validation.
RefreshVariablesTrait::refreshVariables	protected	function	Refreshes in-memory configuration and state information.	3
SessionTestTrait::$sessionName	protected	property	The name of the session cookie.
SessionTestTrait::generateSessionName	protected	function	Generates a session cookie name.
SessionTestTrait::getSessionName	protected	function	Returns the session name in use on the child site.
StorageCopyTrait::replaceStorageContents	protected static	function	Copy the configuration from one storage to another and remove stale items.
TestRequirementsTrait::checkModuleRequirements	private	function	Checks missing module requirements.
TestRequirementsTrait::checkRequirements	protected	function	Check module requirements for the Drupal use case.	1
TestRequirementsTrait::getDrupalRoot	protected static	function	Returns the Drupal root directory.
TestSetupTrait::$configSchemaCheckerExclusions	protected static	property	An array of config object names that are excluded from schema checking.
TestSetupTrait::$container	protected	property	The dependency injection container used in the test.
TestSetupTrait::$kernel	protected	property	The DrupalKernel instance used in the test.
TestSetupTrait::$originalSite	protected	property	The site directory of the original parent site.
TestSetupTrait::$privateFilesDirectory	protected	property	The private file directory for the test environment.
TestSetupTrait::$publicFilesDirectory	protected	property	The public file directory for the test environment.
TestSetupTrait::$siteDirectory	protected	property	The site directory of this test run.
TestSetupTrait::$strictConfigSchema	protected	property	Set to TRUE to strict check all configuration saved.	2
TestSetupTrait::$tempFilesDirectory	protected	property	The temporary file directory for the test environment.
TestSetupTrait::$testId	protected	property	The test run ID.
TestSetupTrait::changeDatabasePrefix	protected	function	Changes the database connection to the prefixed one.
TestSetupTrait::getConfigSchemaExclusions	protected	function	Gets the config schema exclusions for this test.
TestSetupTrait::getDatabaseConnection	public static	function	Returns the database connection to the site running Simpletest.
TestSetupTrait::prepareDatabasePrefix	protected	function	Generates a database prefix for running tests.	2
UiHelperTrait::$loggedInUser	protected	property	The current user logged in using the Mink controlled browser.
UiHelperTrait::$maximumMetaRefreshCount	protected	property	The number of meta refresh redirects to follow, or NULL if unlimited.
UiHelperTrait::$metaRefreshCount	protected	property	The number of meta refresh redirects followed during ::drupalGet().
UiHelperTrait::assertSession	public	function	Returns WebAssert object.	1
UiHelperTrait::buildUrl	protected	function	Builds an a absolute URL from a system path or a URL object.
UiHelperTrait::checkForMetaRefresh	protected	function	Checks for meta refresh tag and if found call drupalGet() recursively.
UiHelperTrait::click	protected	function	Clicks the element with the given CSS selector.
UiHelperTrait::clickLink	protected	function	Follows a link by complete name.
UiHelperTrait::cssSelect	protected	function	Searches elements using a CSS selector in the raw content.
UiHelperTrait::drupalGet	protected	function	Retrieves a Drupal path or an absolute path.	3
UiHelperTrait::drupalLogin	protected	function	Logs in a user using the Mink controlled browser.
UiHelperTrait::drupalLogout	protected	function	Logs a user out of the Mink controlled browser and confirms.
UiHelperTrait::drupalPostForm	protected	function	Executes a form submission.
UiHelperTrait::drupalUserIsLoggedIn	protected	function	Returns whether a given user account is logged in.
UiHelperTrait::getAbsoluteUrl	protected	function	Takes a path and returns an absolute path.
UiHelperTrait::getTextContent	protected	function	Retrieves the plain-text content from the current page.
UiHelperTrait::getUrl	protected	function	Get the current URL from the browser.
UiHelperTrait::prepareRequest	protected	function	Prepare for a request to testing site.	1
UiHelperTrait::submitForm	protected	function	Fills and submits a form.
UserCreationTrait::checkPermissions	protected	function	Checks whether a given list of permission names is valid.
UserCreationTrait::createAdminRole	protected	function	Creates an administrative role.
UserCreationTrait::createRole	protected	function	Creates a role with specified permissions. Aliased as: drupalCreateRole
UserCreationTrait::createUser	protected	function	Create a user with a given set of permissions. Aliased as: drupalCreateUser
UserCreationTrait::grantPermissions	protected	function	Grant permissions to a user role.
UserCreationTrait::setCurrentUser	protected	function	Switch the current logged in user.
UserCreationTrait::setUpCurrentUser	protected	function	Creates a random user account and sets it as current user.
XdebugRequestTrait::extractCookiesFromRequest	protected	function	Adds xdebug cookies, from request setup.

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class LanguageSwitchingTest in Drupal 8

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