class StorageTest in Drupal 9

Same name in this branch

9 core/modules/views_ui/tests/src/Functional/StorageTest.php \Drupal\Tests\views_ui\Functional\StorageTest
9 core/modules/system/tests/src/Functional/Form/StorageTest.php \Drupal\Tests\system\Functional\Form\StorageTest

Same name and namespace in other branches

8 core/modules/system/tests/src/Functional/Form/StorageTest.php \Drupal\Tests\system\Functional\Form\StorageTest
10 core/modules/system/tests/src/Functional/Form/StorageTest.php \Drupal\Tests\system\Functional\Form\StorageTest

Tests a multistep form using form storage and makes sure validation and caching works right.

The tested form puts data into the storage during the initial form construction. These tests verify that there are no duplicate form constructions, with and without manual form caching activated. Furthermore when a validation error occurs, it makes sure that changed form element values are not lost due to a wrong form rebuild.

@group Form

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\system\Functional\Form\StorageTest

Expanded class hierarchy of StorageTest

File

core/modules/system/tests/src/Functional/Form/StorageTest.php, line 21

Namespace

Drupal\Tests\system\Functional\Form

View source

class StorageTest extends BrowserTestBase {

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

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

  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this
      ->drupalLogin($this
      ->drupalCreateUser());
  }

  /**
   * Tests using the form in a usual way.
   */
  public function testForm() {
    $this
      ->drupalGet('form_test/form-storage');
    $assert_session = $this
      ->assertSession();
    $assert_session
      ->pageTextContains('Form constructions: 1');
    $edit = [
      'title' => 'new',
      'value' => 'value_is_set',
    ];

    // Use form rebuilding triggered by a submit button.
    $this
      ->submitForm($edit, 'Continue submit');
    $assert_session
      ->pageTextContains('Form constructions: 2');
    $assert_session
      ->pageTextContains('Form constructions: 3');

    // Reset the form to the values of the storage, using a form rebuild
    // triggered by button of type button.
    $this
      ->submitForm([
      'title' => 'changed',
    ], 'Reset');
    $assert_session
      ->fieldValueEquals('title', 'new');

    // After rebuilding, the form has been cached.
    $assert_session
      ->pageTextContains('Form constructions: 4');
    $this
      ->submitForm($edit, 'Save');
    $assert_session
      ->pageTextContains('Form constructions: 4');

    // Verify that the form storage has stored the values.
    $assert_session
      ->pageTextContains('Title: new');
  }

  /**
   * Tests using the form after calling $form_state->setCached().
   */
  public function testFormCached() {
    $this
      ->drupalGet('form_test/form-storage', [
      'query' => [
        'cache' => 1,
      ],
    ]);
    $this
      ->assertSession()
      ->pageTextContains('Form constructions: 1');
    $edit = [
      'title' => 'new',
      'value' => 'value_is_set',
    ];

    // Use form rebuilding triggered by a submit button.
    $this
      ->submitForm($edit, 'Continue submit');

    // The first one is for the building of the form.
    $this
      ->assertSession()
      ->pageTextContains('Form constructions: 2');

    // The second one is for the rebuilding of the form.
    $this
      ->assertSession()
      ->pageTextContains('Form constructions: 3');

    // Reset the form to the values of the storage, using a form rebuild
    // triggered by button of type button.
    $this
      ->submitForm([
      'title' => 'changed',
    ], 'Reset');
    $this
      ->assertSession()
      ->fieldValueEquals('title', 'new');
    $this
      ->assertSession()
      ->pageTextContains('Form constructions: 4');
    $this
      ->submitForm($edit, 'Save');
    $this
      ->assertSession()
      ->pageTextContains('Form constructions: 4');

    // Verify that the form storage has stored the values.
    $this
      ->assertSession()
      ->pageTextContains('Title: new');
  }

  /**
   * Tests validation when form storage is used.
   */
  public function testValidation() {
    $this
      ->drupalGet('form_test/form-storage');
    $this
      ->submitForm([
      'title' => '',
      'value' => 'value_is_set',
    ], 'Continue submit');

    // Ensure that the input values have been kept.
    $this
      ->assertSession()
      ->responseMatches('/value_is_set/');
  }

  /**
   * Tests updating cached form storage during form validation.
   *
   * If form caching is enabled and a form stores data in the form storage, then
   * the form storage also has to be updated in case of a validation error in
   * the form. This test re-uses the existing form for multi-step tests, but
   * triggers a special #element_validate handler to update the form storage
   * during form validation, while another, required element in the form
   * triggers a form validation error.
   */
  public function testCachedFormStorageValidation() {

    // Request the form with 'cache' query parameter to enable form caching.
    $this
      ->drupalGet('form_test/form-storage', [
      'query' => [
        'cache' => 1,
      ],
    ]);

    // Skip step 1 of the multi-step form, since the first step copies over
    // 'title' into form storage, but we want to verify that changes in the form
    // storage are updated in the cache during form validation.
    $edit = [
      'title' => 'foo',
    ];
    $this
      ->submitForm($edit, 'Continue submit');

    // In step 2, trigger a validation error for the required 'title' field, and
    // post the special 'change_title' value for the 'value' field, which
    // conditionally invokes the #element_validate handler to update the form
    // storage.
    $edit = [
      'title' => '',
      'value' => 'change_title',
    ];
    $this
      ->submitForm($edit, 'Save');

    // At this point, the form storage should contain updated values, but we do
    // not see them, because the form has not been rebuilt yet due to the
    // validation error. Post again and verify that the rebuilt form contains
    // the values of the updated form storage.
    $this
      ->submitForm([
      'title' => 'foo',
      'value' => 'bar',
    ], 'Save');
    $this
      ->assertSession()
      ->pageTextContains("The thing has been changed.");
  }

  /**
   * Verifies that form build-id is regenerated when loading an immutable form
   * from the cache.
   */
  public function testImmutableForm() {

    // Request the form with 'cache' query parameter to enable form caching.
    $this
      ->drupalGet('form_test/form-storage', [
      'query' => [
        'cache' => 1,
        'immutable' => 1,
      ],
    ]);

    // Ensure the hidden 'form_build_id' field is unique.
    $this
      ->assertSession()
      ->elementsCount('xpath', '//input[@name="form_build_id"]', 1);
    $buildId = $this
      ->assertSession()
      ->hiddenFieldExists('form_build_id')
      ->getValue();

    // Trigger validation error by submitting an empty title.
    $edit = [
      'title' => '',
    ];
    $this
      ->submitForm($edit, 'Continue submit');

    // Verify that the build-id did change.
    $this
      ->assertSession()
      ->hiddenFieldValueNotEquals('form_build_id', $buildId);

    // Ensure the hidden 'form_build_id' field is unique.
    $this
      ->assertSession()
      ->elementsCount('xpath', '//input[@name="form_build_id"]', 1);

    // Retrieve the new build-id.
    $buildId = (string) $this
      ->assertSession()
      ->hiddenFieldExists('form_build_id')
      ->getValue();

    // Trigger validation error by again submitting an empty title.
    $edit = [
      'title' => '',
    ];
    $this
      ->submitForm($edit, 'Continue submit');

    // Verify that the build-id does not change the second time.
    $this
      ->assertSession()
      ->hiddenFieldValueEquals('form_build_id', $buildId);
  }

  /**
   * Verify that existing contrib code cannot overwrite immutable form state.
   */
  public function testImmutableFormLegacyProtection() {
    $this
      ->drupalGet('form_test/form-storage', [
      'query' => [
        'cache' => 1,
        'immutable' => 1,
      ],
    ]);

    // Ensure the hidden 'form_build_id' field is unique.
    $this
      ->assertSession()
      ->elementsCount('xpath', '//input[@name="form_build_id"]', 1);
    $build_id = $this
      ->assertSession()
      ->hiddenFieldExists('form_build_id')
      ->getValue();

    // Try to poison the form cache.
    $response = $this
      ->drupalGet('form-test/form-storage-legacy/' . $build_id, [
      'query' => [
        MainContentViewSubscriber::WRAPPER_FORMAT => 'drupal_ajax',
      ],
    ], [
      'X-Requested-With: XMLHttpRequest',
    ]);
    $original = json_decode($response, TRUE);
    $this
      ->assertEquals($original['form']['#build_id_old'], $build_id, 'Original build_id was recorded');
    $this
      ->assertNotEquals($original['form']['#build_id'], $build_id, 'New build_id was generated');

    // Assert that a watchdog message was logged by
    // \Drupal::formBuilder()->setCache().
    $status = (bool) Database::getConnection()
      ->select('watchdog')
      ->condition('message', 'Form build-id mismatch detected while attempting to store a form in the cache.')
      ->range(0, 1)
      ->countQuery()
      ->execute()
      ->fetchField();
    $this
      ->assertTrue($status, 'A watchdog message was logged by \\Drupal::formBuilder()->setCache');

    // Ensure that the form state was not poisoned by the preceding call.
    $response = $this
      ->drupalGet('form-test/form-storage-legacy/' . $build_id, [
      'query' => [
        MainContentViewSubscriber::WRAPPER_FORMAT => 'drupal_ajax',
      ],
    ], [
      'X-Requested-With: XMLHttpRequest',
    ]);
    $original = json_decode($response, TRUE);
    $this
      ->assertEquals($original['form']['#build_id_old'], $build_id, 'Original build_id was recorded');
    $this
      ->assertNotEquals($original['form']['#build_id'], $build_id, 'New build_id was generated');
    $this
      ->assertTrue(empty($original['form']['#poisoned']), 'Original form structure was preserved');
    $this
      ->assertTrue(empty($original['form_state']['poisoned']), 'Original form state was preserved');
  }

}

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
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::$sessionName	protected	property	The name of the session cookie.
SessionTestTrait::generateSessionName	protected	function	Generates a session cookie name.
SessionTestTrait::getSessionName	protected	function	Returns the session name in use on the child site.
StorageCopyTrait::replaceStorageContents	protected static	function	Copy the configuration from one storage to another and remove stale items.
StorageTest::$defaultTheme	protected	property	The theme to install as the default for testing. Overrides BrowserTestBase::$defaultTheme
StorageTest::$modules	protected static	property	Modules to enable. Overrides BrowserTestBase::$modules
StorageTest::setUp	protected	function	Overrides BrowserTestBase::setUp
StorageTest::testCachedFormStorageValidation	public	function	Tests updating cached form storage during form validation.
StorageTest::testForm	public	function	Tests using the form in a usual way.
StorageTest::testFormCached	public	function	Tests using the form after calling $form_state->setCached().
StorageTest::testImmutableForm	public	function	Verifies that form build-id is regenerated when loading an immutable form from the cache.
StorageTest::testImmutableFormLegacyProtection	public	function	Verify that existing contrib code cannot overwrite immutable form state.
StorageTest::testValidation	public	function	Tests validation when form storage is used.
TestRequirementsTrait::checkModuleRequirements	private	function	Checks missing module requirements.
TestRequirementsTrait::checkRequirements	protected	function	Check module requirements for the Drupal use case.	1
TestRequirementsTrait::getDrupalRoot	protected static	function	Returns the Drupal root directory.
TestSetupTrait::$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 StorageTest in Drupal 9

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