class LanguageNegotiationInfoTest in Drupal 9

Same name and namespace in other branches

8 core/modules/language/tests/src/Functional/LanguageNegotiationInfoTest.php \Drupal\Tests\language\Functional\LanguageNegotiationInfoTest

Tests alterations to language types/negotiation info.

@group language

Hierarchy

class \Drupal\Tests\BrowserTestBase extends \PHPUnit\Framework\TestCase uses \Symfony\Bridge\PhpUnit\ExpectDeprecationTrait, FunctionalTestSetupTrait, TestSetupTrait, AssertLegacyTrait, BlockCreationTrait, ConfigTestTrait, ExtensionListTestTrait, ContentTypeCreationTrait, NodeCreationTrait, PhpUnitCompatibilityTrait, RandomGeneratorTrait, TestRequirementsTrait, PhpUnitWarnings, UiHelperTrait, UserCreationTrait, XdebugRequestTrait
- class \Drupal\Tests\language\Functional\LanguageNegotiationInfoTest

Expanded class hierarchy of LanguageNegotiationInfoTest

File

core/modules/language/tests/src/Functional/LanguageNegotiationInfoTest.php, line 15

Namespace

Drupal\Tests\language\Functional

View source

class LanguageNegotiationInfoTest extends BrowserTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'language',
    'content_translation',
  ];

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $admin_user = $this
      ->drupalCreateUser([
      'administer languages',
      'access administration pages',
      'view the administration theme',
      'administer modules',
    ]);
    $this
      ->drupalLogin($admin_user);
    $this
      ->drupalGet('admin/config/regional/language/add');
    $this
      ->submitForm([
      'predefined_langcode' => 'it',
    ], 'Add language');
  }

  /**
   * Returns the configurable language manager.
   *
   * @return \Drupal\language\ConfigurableLanguageManager
   */
  protected function languageManager() {
    return $this->container
      ->get('language_manager');
  }

  /**
   * Sets state flags for language_test module.
   *
   * Ensures to correctly update data both in the child site and the test runner
   * environment.
   *
   * @param array $values
   *   The key/value pairs to set in state.
   */
  protected function stateSet(array $values) {

    // Set the new state values.
    $this->container
      ->get('state')
      ->setMultiple($values);

    // Refresh in-memory static state/config caches and static variables.
    $this
      ->refreshVariables();

    // Refresh/rewrite language negotiation configuration, in order to pick up
    // the manipulations performed by language_test module's info alter hooks.
    $this->container
      ->get('language_negotiator')
      ->purgeConfiguration();
  }

  /**
   * Tests alterations to language types/negotiation info.
   */
  public function testInfoAlterations() {
    $this
      ->stateSet([
      // Enable language_test type info.
      'language_test.language_types' => TRUE,
      // Enable language_test negotiation info (not altered yet).
      'language_test.language_negotiation_info' => TRUE,
      // Alter LanguageInterface::TYPE_CONTENT to be configurable.
      'language_test.content_language_type' => TRUE,
    ]);
    $this->container
      ->get('module_installer')
      ->install([
      'language_test',
    ]);
    $this
      ->resetAll();

    // Check that fixed language types are properly configured without the need
    // of saving the language negotiation settings.
    $this
      ->checkFixedLanguageTypes();
    $type = LanguageInterface::TYPE_CONTENT;
    $language_types = $this
      ->languageManager()
      ->getLanguageTypes();
    $this
      ->assertContains($type, $language_types, 'Content language type is configurable.');

    // Enable some core and custom language negotiation methods. The test
    // language type is supposed to be configurable.
    $test_type = 'test_language_type';
    $interface_method_id = LanguageNegotiationUI::METHOD_ID;
    $test_method_id = 'test_language_negotiation_method';
    $form_field = $type . '[enabled][' . $interface_method_id . ']';
    $edit = [
      $form_field => TRUE,
      $type . '[enabled][' . $test_method_id . ']' => TRUE,
      $test_type . '[enabled][' . $test_method_id . ']' => TRUE,
      $test_type . '[configurable]' => TRUE,
    ];
    $this
      ->drupalGet('admin/config/regional/language/detection');
    $this
      ->submitForm($edit, 'Save settings');

    // Alter language negotiation info to remove interface language negotiation
    // method.
    $this
      ->stateSet([
      'language_test.language_negotiation_info_alter' => TRUE,
    ]);
    $negotiation = $this
      ->config('language.types')
      ->get('negotiation.' . $type . '.enabled');
    $this
      ->assertFalse(isset($negotiation[$interface_method_id]), 'Interface language negotiation method removed from the stored settings.');

    // Check that the interface language negotiation method is unavailable.
    $this
      ->drupalGet('admin/config/regional/language/detection');
    $this
      ->assertSession()
      ->fieldNotExists($form_field);

    // Check that type-specific language negotiation methods can be assigned
    // only to the corresponding language types.
    foreach ($this
      ->languageManager()
      ->getLanguageTypes() as $type) {
      $form_field = $type . '[enabled][test_language_negotiation_method_ts]';
      if ($type == $test_type) {
        $this
          ->assertSession()
          ->fieldExists($form_field);
      }
      else {
        $this
          ->assertSession()
          ->fieldNotExists($form_field);
      }
    }

    // Check language negotiation results.
    $this
      ->drupalGet('');
    $last = $this->container
      ->get('state')
      ->get('language_test.language_negotiation_last');
    foreach ($this
      ->languageManager()
      ->getDefinedLanguageTypes() as $type) {
      $langcode = $last[$type];
      $value = $type == LanguageInterface::TYPE_CONTENT || strpos($type, 'test') !== FALSE ? 'it' : 'en';
      $this
        ->assertEquals($langcode, $value, new FormattableMarkup('The negotiated language for %type is %language', [
        '%type' => $type,
        '%language' => $value,
      ]));
    }

    // Uninstall language_test and check that everything is set back to the
    // original status.
    $this->container
      ->get('module_installer')
      ->uninstall([
      'language_test',
    ]);
    $this
      ->rebuildContainer();

    // Check that only the core language types are available.
    foreach ($this
      ->languageManager()
      ->getDefinedLanguageTypes() as $type) {
      $this
        ->assertStringNotContainsString('test', $type, new FormattableMarkup('The %type language is still available', [
        '%type' => $type,
      ]));
    }

    // Check that fixed language types are properly configured, even those
    // previously set to configurable.
    $this
      ->checkFixedLanguageTypes();

    // Check that unavailable language negotiation methods are not present in
    // the negotiation settings.
    $negotiation = $this
      ->config('language.types')
      ->get('negotiation.' . $type . '.enabled');
    $this
      ->assertFalse(isset($negotiation[$test_method_id]), 'The disabled test language negotiation method is not part of the content language negotiation settings.');

    // Check that configuration page presents the correct options and settings.
    $this
      ->assertSession()
      ->pageTextNotContains("Test language detection");
    $this
      ->assertSession()
      ->pageTextNotContains("This is a test language negotiation method");
  }

  /**
   * Check that language negotiation for fixed types matches the stored one.
   */
  protected function checkFixedLanguageTypes() {
    $configurable = $this
      ->languageManager()
      ->getLanguageTypes();
    foreach ($this
      ->languageManager()
      ->getDefinedLanguageTypesInfo() as $type => $info) {
      if (!in_array($type, $configurable) && isset($info['fixed'])) {
        $negotiation = $this
          ->config('language.types')
          ->get('negotiation.' . $type . '.enabled');
        $equal = array_keys($negotiation) === array_values($info['fixed']);
        $this
          ->assertTrue($equal, new FormattableMarkup('language negotiation for %type is properly set up', [
          '%type' => $type,
        ]));
      }
    }
  }

  /**
   * Tests altering config of configurable language types.
   */
  public function testConfigLangTypeAlterations() {

    // Default of config.
    $test_type = LanguageInterface::TYPE_CONTENT;
    $this
      ->assertFalse($this
      ->isLanguageTypeConfigurable($test_type), 'Language type is not configurable.');

    // Editing config.
    $edit = [
      $test_type . '[configurable]' => TRUE,
    ];
    $this
      ->drupalGet('admin/config/regional/language/detection');
    $this
      ->submitForm($edit, 'Save settings');
    $this
      ->assertTrue($this
      ->isLanguageTypeConfigurable($test_type), 'Language type is now configurable.');

    // After installing another module, the config should be the same.
    $this
      ->drupalGet('admin/modules');
    $this
      ->submitForm([
      'modules[test_module][enable]' => 1,
    ], 'Install');
    $this
      ->assertTrue($this
      ->isLanguageTypeConfigurable($test_type), 'Language type is still configurable.');

    // After uninstalling the other module, the config should be the same.
    $this
      ->drupalGet('admin/modules/uninstall');
    $this
      ->submitForm([
      'uninstall[test_module]' => 1,
    ], 'Uninstall');
    $this
      ->assertTrue($this
      ->isLanguageTypeConfigurable($test_type), 'Language type is still configurable.');
  }

  /**
   * Checks whether the given language type is configurable.
   *
   * @param string $type
   *   The language type.
   *
   * @return bool
   *   TRUE if the specified language type is configurable, FALSE otherwise.
   */
  protected function isLanguageTypeConfigurable($type) {
    $configurable_types = $this
      ->config('language.types')
      ->get('configurable');
    return in_array($type, $configurable_types);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AssertLegacyTrait::assert Deprecated	protected	function
AssertLegacyTrait::assertCacheTag Deprecated	protected	function	Asserts whether an expected cache tag was present in the last response.
AssertLegacyTrait::assertElementNotPresent Deprecated	protected	function	Asserts that the element with the given CSS selector is not present.
AssertLegacyTrait::assertElementPresent Deprecated	protected	function	Asserts that the element with the given CSS selector is present.
AssertLegacyTrait::assertEqual Deprecated	protected	function
AssertLegacyTrait::assertEscaped Deprecated	protected	function	Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertLegacyTrait::assertField Deprecated	protected	function	Asserts that a field exists with the given name or ID.
AssertLegacyTrait::assertFieldById Deprecated	protected	function	Asserts that a field exists with the given ID and value.
AssertLegacyTrait::assertFieldByName Deprecated	protected	function	Asserts that a field exists with the given name and value.
AssertLegacyTrait::assertFieldByXPath Deprecated	protected	function	Asserts that a field exists in the current page by the given XPath.
AssertLegacyTrait::assertFieldChecked Deprecated	protected	function	Asserts that a checkbox field in the current page is checked.
AssertLegacyTrait::assertFieldsByValue Deprecated	protected	function	Asserts that a field exists in the current page with a given Xpath result.
AssertLegacyTrait::assertHeader Deprecated	protected	function	Checks that current response header equals value.
AssertLegacyTrait::assertIdentical Deprecated	protected	function
AssertLegacyTrait::assertIdenticalObject Deprecated	protected	function
AssertLegacyTrait::assertLink Deprecated	protected	function	Passes if a link with the specified label is found.
AssertLegacyTrait::assertLinkByHref Deprecated	protected	function	Passes if a link containing a given href (part) is found.
AssertLegacyTrait::assertNoCacheTag Deprecated	protected	function	Asserts whether an expected cache tag was absent in the last response.
AssertLegacyTrait::assertNoEscaped Deprecated	protected	function	Passes if the raw text is not found escaped on the loaded page.
AssertLegacyTrait::assertNoField Deprecated	protected	function	Asserts that a field does NOT exist with the given name or ID.
AssertLegacyTrait::assertNoFieldById Deprecated	protected	function	Asserts that a field does not exist with the given ID and value.
AssertLegacyTrait::assertNoFieldByName Deprecated	protected	function	Asserts that a field does not exist with the given name and value.
AssertLegacyTrait::assertNoFieldByXPath Deprecated	protected	function	Asserts that a field does not exist or its value does not match, by XPath.
AssertLegacyTrait::assertNoFieldChecked Deprecated	protected	function	Asserts that a checkbox field in the current page is not checked.
AssertLegacyTrait::assertNoLink Deprecated	protected	function	Passes if a link with the specified label is not found.
AssertLegacyTrait::assertNoLinkByHref Deprecated	protected	function	Passes if a link containing a given href (part) is not found.
AssertLegacyTrait::assertNoOption Deprecated	protected	function	Asserts that a select option does NOT exist in the current page.
AssertLegacyTrait::assertNoPattern Deprecated	protected	function	Triggers a pass if the Perl regex pattern is not found in the raw content.
AssertLegacyTrait::assertNoRaw Deprecated	protected	function	Passes if the raw text IS not found on the loaded page, fail otherwise.
AssertLegacyTrait::assertNotEqual Deprecated	protected	function
AssertLegacyTrait::assertNoText Deprecated	protected	function	Passes if the page (with HTML stripped) does not contains the text.
AssertLegacyTrait::assertNotIdentical Deprecated	protected	function
AssertLegacyTrait::assertNoUniqueText Deprecated	protected	function	Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertLegacyTrait::assertOption Deprecated	protected	function	Asserts that a select option in the current page exists.
AssertLegacyTrait::assertOptionByText Deprecated	protected	function	Asserts that a select option with the visible text exists.
AssertLegacyTrait::assertOptionSelected Deprecated	protected	function	Asserts that a select option in the current page is checked.
AssertLegacyTrait::assertPattern Deprecated	protected	function	Triggers a pass if the Perl regex pattern is found in the raw content.
AssertLegacyTrait::assertRaw Deprecated	protected	function	Passes if the raw text IS found on the loaded page, fail otherwise.
AssertLegacyTrait::assertResponse Deprecated	protected	function	Asserts the page responds with the specified response code.
AssertLegacyTrait::assertText Deprecated	protected	function	Passes if the page (with HTML stripped) contains the text.
AssertLegacyTrait::assertTextHelper Deprecated	protected	function	Helper for assertText and assertNoText.
AssertLegacyTrait::assertTitle Deprecated	protected	function	Pass if the page title is the given string.
AssertLegacyTrait::assertUniqueText Deprecated	protected	function	Passes if the text is found ONLY ONCE on the text version of the page.
AssertLegacyTrait::assertUrl Deprecated	protected	function	Passes if the internal browser's URL matches the given path.
AssertLegacyTrait::buildXPathQuery Deprecated	protected	function	Builds an XPath query.
AssertLegacyTrait::constructFieldXpath Deprecated	protected	function	Helper: Constructs an XPath for the given set of attributes and value.
AssertLegacyTrait::getAllOptions Deprecated	protected	function	Get all option elements, including nested options, in a select.
AssertLegacyTrait::getRawContent Deprecated	protected	function	Gets the current raw content.
AssertLegacyTrait::pass Deprecated	protected	function
AssertLegacyTrait::verbose Deprecated	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::getResponseLogHandler	protected	function	Provides a Guzzle middleware handler to log every response received.
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	Mink default driver params.
BrowserTestBase::$minkDefaultDriverClass	protected	property	Mink class for the default driver to use.	1
BrowserTestBase::$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::drupalGetHeader Deprecated	protected	function	Gets the value of an HTTP response header.
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::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::setUpAppRoot	protected	function	Sets up the root application path.
BrowserTestBase::setUpBeforeClass	public static	function		1
BrowserTestBase::tearDown	protected	function		3
BrowserTestBase::translatePostValues	protected	function	Transforms a nested array into a flat array suitable for submitForm().
BrowserTestBase::xpath	protected	function	Performs an xpath search on the contents of the internal browser.
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
ExtensionListTestTrait::getModulePath	protected	function	Gets the path for the specified module.
ExtensionListTestTrait::getThemePath	protected	function	Gets the path for the specified theme.
FunctionalTestSetupTrait::$apcuEnsureUniquePrefix	protected	property	The flag to set 'apcu_ensure_unique_prefix' setting.	1
FunctionalTestSetupTrait::$classLoader	protected	property	The class loader to use for installation and initialization of setup.
FunctionalTestSetupTrait::$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.	1
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.	20
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.	1
LanguageNegotiationInfoTest::$defaultTheme	protected	property	The theme to install as the default for testing. Overrides BrowserTestBase::$defaultTheme
LanguageNegotiationInfoTest::$modules	protected static	property	Modules to enable. Overrides BrowserTestBase::$modules
LanguageNegotiationInfoTest::checkFixedLanguageTypes	protected	function	Check that language negotiation for fixed types matches the stored one.
LanguageNegotiationInfoTest::isLanguageTypeConfigurable	protected	function	Checks whether the given language type is configurable.
LanguageNegotiationInfoTest::languageManager	protected	function	Returns the configurable language manager.
LanguageNegotiationInfoTest::setUp	protected	function	Overrides BrowserTestBase::setUp
LanguageNegotiationInfoTest::stateSet	protected	function	Sets state flags for language_test module.
LanguageNegotiationInfoTest::testConfigLangTypeAlterations	public	function	Tests altering config of configurable language types.
LanguageNegotiationInfoTest::testInfoAlterations	public	function	Tests alterations to language types/negotiation info.
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
PhpUnitWarnings::$deprecationWarnings	private static	property	Deprecation warnings from PHPUnit to raise with @trigger_error().
PhpUnitWarnings::addWarning	public	function	Converts PHPUnit deprecation warnings to E_USER_DEPRECATED.
RandomGeneratorTrait::$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.	1
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::$strictConfigSchema	protected	property	Set to TRUE to strict check all configuration saved.	1
TestSetupTrait::$tempFilesDirectory	protected	property	The temporary file directory for the test environment.
TestSetupTrait::$testId	protected	property	The test run ID.
TestSetupTrait::changeDatabasePrefix	protected	function	Changes the database connection to the prefixed one.
TestSetupTrait::getConfigSchemaExclusions	protected	function	Gets the config schema exclusions for this test.
TestSetupTrait::getDatabaseConnection	public static	function	Returns the database connection to the site running Simpletest.
TestSetupTrait::prepareDatabasePrefix	protected	function	Generates a database prefix for running tests.	1
UiHelperTrait::$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 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::cssSelectToXpath	protected	function	Translates a CSS expression to its XPath equivalent.
UiHelperTrait::drupalGet	protected	function	Retrieves a Drupal path or an absolute path.	2
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 Deprecated	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::isTestUsingGuzzleClient	protected	function	Determines if test is using DrupalTestBrowser.
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 LanguageNegotiationInfoTest in Drupal 9

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