class ConfigInstallTest

Same name in other branches
  1. 9 core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php \Drupal\KernelTests\Core\Config\ConfigInstallTest
  2. 8.9.x core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php \Drupal\KernelTests\Core\Config\ConfigInstallTest
  3. 11.x core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php \Drupal\KernelTests\Core\Config\ConfigInstallTest

Tests installation of configuration objects in installation functionality.

@group config

Hierarchy

Expanded class hierarchy of ConfigInstallTest

See also

\Drupal\Core\Config\ConfigInstaller

File

core/tests/Drupal/KernelTests/Core/Config/ConfigInstallTest.php, line 19

Namespace

Drupal\KernelTests\Core\Config
View source
class ConfigInstallTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
        'config_events_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Ensure the global variable being asserted by this test does not exist;
        // a previous test executed in this request/process might have set it.
        unset($GLOBALS['hook_config_test']);
    }
    
    /**
     * Tests module installation.
     */
    public function testModuleInstallation() : void {
        $default_config = 'config_test.system';
        $default_configuration_entity = 'config_test.dynamic.dotted.default';
        // Verify that default module config does not exist before installation yet.
        $config = $this->config($default_config);
        $this->assertTrue($config->isNew());
        $config = $this->config($default_configuration_entity);
        $this->assertTrue($config->isNew());
        // Ensure that schema provided by modules that are not installed is not
        // available.
        $this->assertFalse(\Drupal::service('config.typed')->hasConfigSchema('config_schema_test.some_schema'), 'Configuration schema for config_schema_test.some_schema does not exist.');
        // Install the test module.
        $this->installModules([
            'config_test',
        ]);
        // Verify that default module config exists.
        \Drupal::configFactory()->reset($default_config);
        \Drupal::configFactory()->reset($default_configuration_entity);
        $config = $this->config($default_config);
        $this->assertFalse($config->isNew());
        $config = $this->config($default_configuration_entity);
        $this->assertFalse($config->isNew());
        // Verify that config_test API hooks were invoked for the dynamic default
        // configuration entity.
        $this->assertFalse(isset($GLOBALS['hook_config_test']['load']));
        $this->assertTrue(isset($GLOBALS['hook_config_test']['presave']));
        $this->assertTrue(isset($GLOBALS['hook_config_test']['insert']));
        $this->assertFalse(isset($GLOBALS['hook_config_test']['update']));
        $this->assertFalse(isset($GLOBALS['hook_config_test']['predelete']));
        $this->assertFalse(isset($GLOBALS['hook_config_test']['delete']));
        // Install the schema test module.
        $this->enableModules([
            'config_schema_test',
        ]);
        $this->installConfig([
            'config_schema_test',
        ]);
        // After module installation the new schema should exist.
        $this->assertTrue(\Drupal::service('config.typed')->hasConfigSchema('config_schema_test.some_schema'), 'Configuration schema for config_schema_test.some_schema exists.');
        // Test that uninstalling configuration removes configuration schema.
        $this->config('core.extension')
            ->set('module', [])
            ->save();
        \Drupal::service('config.manager')->uninstall('module', 'config_test');
        $this->assertFalse(\Drupal::service('config.typed')->hasConfigSchema('config_schema_test.some_schema'), 'Configuration schema for config_schema_test.some_schema does not exist.');
    }
    
    /**
     * Tests that collections are ignored if the event does not return anything.
     */
    public function testCollectionInstallationNoCollections() : void {
        // Install the test module.
        $this->enableModules([
            'config_collection_install_test',
        ]);
        $this->installConfig([
            'config_collection_install_test',
        ]);
        
        /** @var \Drupal\Core\Config\StorageInterface $active_storage */
        $active_storage = \Drupal::service('config.storage');
        $this->assertEquals([], $active_storage->getAllCollectionNames());
    }
    
    /**
     * Tests config objects in collections are installed as expected.
     */
    public function testCollectionInstallationCollections() : void {
        $collections = [
            'another_collection',
            'collection.test1',
            'collection.test2',
        ];
        // Set the event listener to return three possible collections.
        // @see \Drupal\config_collection_install_test\EventSubscriber
        \Drupal::state()->set('config_collection_install_test.collection_names', $collections);
        // Install the test module.
        $this->enableModules([
            'config_collection_install_test',
        ]);
        $this->installConfig([
            'config_collection_install_test',
        ]);
        
        /** @var \Drupal\Core\Config\StorageInterface $active_storage */
        $active_storage = \Drupal::service('config.storage');
        $this->assertEquals($collections, $active_storage->getAllCollectionNames());
        foreach ($collections as $collection) {
            $collection_storage = $active_storage->createCollection($collection);
            $data = $collection_storage->read('config_collection_install_test.test');
            $this->assertEquals($collection, $data['collection']);
        }
        // Tests that clashing configuration in collections is detected.
        try {
            \Drupal::service('module_installer')->install([
                'config_collection_clash_install_test',
            ]);
            $this->fail('Expected PreExistingConfigException not thrown.');
        } catch (PreExistingConfigException $e) {
            $this->assertEquals('config_collection_clash_install_test', $e->getExtension());
            $this->assertEquals([
                'another_collection' => [
                    'config_collection_install_test.test',
                ],
                'collection.test1' => [
                    'config_collection_install_test.test',
                ],
                'collection.test2' => [
                    'config_collection_install_test.test',
                ],
            ], $e->getConfigObjects());
            $this->assertEquals('Configuration objects (another_collection/config_collection_install_test.test, collection/test1/config_collection_install_test.test, collection/test2/config_collection_install_test.test) provided by config_collection_clash_install_test already exist in active configuration', $e->getMessage());
        }
        // Test that the we can use the config installer to install all the
        // available default configuration in a particular collection for enabled
        // extensions.
        \Drupal::service('config.installer')->installCollectionDefaultConfig('entity');
        // The 'entity' collection will not exist because the 'config_test' module
        // is not enabled.
        $this->assertEquals($collections, $active_storage->getAllCollectionNames());
        // Enable the 'config_test' module and try again.
        $this->enableModules([
            'config_test',
        ]);
        \Drupal::service('config.installer')->installCollectionDefaultConfig('entity');
        $collections[] = 'entity';
        $this->assertEquals($collections, $active_storage->getAllCollectionNames());
        $collection_storage = $active_storage->createCollection('entity');
        $data = $collection_storage->read('config_test.dynamic.dotted.default');
        $this->assertSame([
            'label' => 'entity',
        ], $data);
        // Test that the config manager uninstalls configuration from collections
        // as expected.
        \Drupal::state()->set('config_events_test.all_events', []);
        $this->container
            ->get('config.manager')
            ->uninstall('module', 'config_collection_install_test');
        $all_events = \Drupal::state()->get('config_events_test.all_events');
        $this->assertArrayHasKey(ConfigCollectionEvents::DELETE_IN_COLLECTION, $all_events);
        // The delete-in-collection event has been triggered 3 times.
        $this->assertCount(3, $all_events[ConfigCollectionEvents::DELETE_IN_COLLECTION]['config_collection_install_test.test']);
        $event_collections = [];
        foreach ($all_events[ConfigCollectionEvents::DELETE_IN_COLLECTION]['config_collection_install_test.test'] as $event) {
            $event_collections[] = $event['original_config_data']['collection'];
        }
        $this->assertSame([
            'another_collection',
            'collection.test1',
            'collection.test2',
        ], $event_collections);
        $this->assertEquals([
            'entity',
        ], $active_storage->getAllCollectionNames());
        \Drupal::state()->set('config_events_test.all_events', []);
        $this->container
            ->get('config.manager')
            ->uninstall('module', 'config_test');
        $this->assertEquals([], $active_storage->getAllCollectionNames());
        $all_events = \Drupal::state()->get('config_events_test.all_events');
        $this->assertArrayHasKey(ConfigCollectionEvents::DELETE_IN_COLLECTION, $all_events);
        $this->assertCount(1, $all_events[ConfigCollectionEvents::DELETE_IN_COLLECTION]['config_test.dynamic.dotted.default']);
    }
    
    /**
     * Tests collections which do not support config entities install correctly.
     *
     * Config entity detection during config installation is done by matching
     * config name prefixes. If a collection provides a configuration with a
     * matching name but does not support config entities it should be created
     * using simple configuration.
     */
    public function testCollectionInstallationCollectionConfigEntity() : void {
        $collections = [
            'entity',
        ];
        \Drupal::state()->set('config_collection_install_test.collection_names', $collections);
        // Install the test module.
        $this->installModules([
            'config_test',
            'config_collection_install_test',
        ]);
        
        /** @var \Drupal\Core\Config\StorageInterface $active_storage */
        $active_storage = \Drupal::service('config.storage');
        $this->assertEquals($collections, $active_storage->getAllCollectionNames());
        $collection_storage = $active_storage->createCollection('entity');
        // The config_test.dynamic.dotted.default configuration object saved in the
        // active store should be a configuration entity complete with UUID. Because
        // the entity collection does not support configuration entities the
        // configuration object stored there with the same name should only contain
        // a label.
        $name = 'config_test.dynamic.dotted.default';
        $data = $active_storage->read($name);
        $this->assertTrue(isset($data['uuid']));
        $data = $collection_storage->read($name);
        $this->assertSame([
            'label' => 'entity',
        ], $data);
    }
    
    /**
     * Tests the configuration with unmet dependencies is not installed.
     */
    public function testDependencyChecking() : void {
        $this->installModules([
            'config_test',
        ]);
        try {
            $this->installModules([
                'config_install_dependency_test',
            ]);
            $this->fail('Expected UnmetDependenciesException not thrown.');
        } catch (UnmetDependenciesException $e) {
            $this->assertEquals('config_install_dependency_test', $e->getExtension());
            $this->assertEquals([
                'config_test.dynamic.other_module_test_with_dependency' => [
                    'config_other_module_config_test',
                    'config_test.dynamic.dotted.english',
                ],
            ], $e->getConfigObjects());
            $this->assertEquals('Configuration objects provided by <em class="placeholder">config_install_dependency_test</em> have unmet dependencies: <em class="placeholder">config_test.dynamic.other_module_test_with_dependency (config_other_module_config_test, config_test.dynamic.dotted.english)</em>', $e->getMessage());
        }
        try {
            $this->installModules([
                'config_install_double_dependency_test',
            ]);
            $this->fail('Expected UnmetDependenciesException not thrown.');
        } catch (UnmetDependenciesException $e) {
            $this->assertEquals('config_install_double_dependency_test', $e->getExtension());
            $this->assertEquals([
                'config_test.dynamic.other_module_test_with_dependency' => [
                    'config_other_module_config_test',
                    'config_test.dynamic.dotted.english',
                ],
            ], $e->getConfigObjects());
            $this->assertEquals('Configuration objects provided by <em class="placeholder">config_install_double_dependency_test</em> have unmet dependencies: <em class="placeholder">config_test.dynamic.other_module_test_with_dependency (config_other_module_config_test, config_test.dynamic.dotted.english)</em>', $e->getMessage());
        }
        $this->installModules([
            'config_test_language',
        ]);
        try {
            $this->installModules([
                'config_install_dependency_test',
            ]);
            $this->fail('Expected UnmetDependenciesException not thrown.');
        } catch (UnmetDependenciesException $e) {
            $this->assertEquals('config_install_dependency_test', $e->getExtension());
            $this->assertEquals([
                'config_test.dynamic.other_module_test_with_dependency' => [
                    'config_other_module_config_test',
                ],
            ], $e->getConfigObjects());
            $this->assertEquals('Configuration objects provided by <em class="placeholder">config_install_dependency_test</em> have unmet dependencies: <em class="placeholder">config_test.dynamic.other_module_test_with_dependency (config_other_module_config_test)</em>', $e->getMessage());
        }
        $this->installModules([
            'config_other_module_config_test',
        ]);
        $this->installModules([
            'config_install_dependency_test',
        ]);
        $entity = \Drupal::entityTypeManager()->getStorage('config_test')
            ->load('other_module_test_with_dependency');
        $this->assertNotEmpty($entity, 'The config_test.dynamic.other_module_test_with_dependency configuration has been created during install.');
        // Ensure that dependencies can be added during module installation by
        // hooks.
        $this->assertSame('config_install_dependency_test', $entity->getDependencies()['module'][0]);
    }
    
    /**
     * Tests imported configuration entities with/without language information.
     */
    public function testLanguage() : void {
        $this->installModules([
            'config_test_language',
        ]);
        // Test imported configuration with implicit language code.
        $storage = new InstallStorage();
        $data = $storage->read('config_test.dynamic.dotted.english');
        $this->assertTrue(!isset($data['langcode']));
        $this->assertEquals('en', $this->config('config_test.dynamic.dotted.english')
            ->get('langcode'));
        // Test imported configuration with explicit language code.
        $data = $storage->read('config_test.dynamic.dotted.french');
        $this->assertEquals('fr', $data['langcode']);
        $this->assertEquals('fr', $this->config('config_test.dynamic.dotted.french')
            ->get('langcode'));
    }
    
    /**
     * Tests installing configuration where the filename and ID do not match.
     */
    public function testIdMisMatch() : void {
        $this->expectWarning();
        $this->expectWarningMessage('The configuration name "config_test.dynamic.no_id_match" does not match the ID "does_not_match"');
        $this->installModules([
            'config_test_id_mismatch',
        ]);
    }
    
    /**
     * Installs a module.
     *
     * @param array $modules
     *   The module names.
     */
    protected function installModules(array $modules) {
        $this->container
            ->get('module_installer')
            ->install($modules);
        $this->container = \Drupal::getContainer();
    }

}

Members

Title Sort descending Deprecated Modifiers Object type Summary Overriden Title Overrides
AssertContentTrait::$content protected property The current raw content.
AssertContentTrait::$drupalSettings protected property The drupalSettings value from the current raw $content.
AssertContentTrait::$elements protected property The XML structure parsed from the current raw $content. 1
AssertContentTrait::$plainTextContent protected property The plain-text content of raw $content (text nodes).
AssertContentTrait::assertEscaped protected function Passes if the raw text IS found escaped on the loaded page, fail otherwise.
AssertContentTrait::assertField protected function Asserts that a field exists with the given name or ID.
AssertContentTrait::assertFieldById protected function Asserts that a field exists with the given ID and value.
AssertContentTrait::assertFieldByName protected function Asserts that a field exists with the given name and value.
AssertContentTrait::assertFieldByXPath protected function Asserts that a field exists in the current page by the given XPath.
AssertContentTrait::assertFieldChecked protected function Asserts that a checkbox field in the current page is checked.
AssertContentTrait::assertFieldsByValue protected function Asserts that a field exists in the current page with a given Xpath result.
AssertContentTrait::assertLink protected function Passes if a link with the specified label is found.
AssertContentTrait::assertLinkByHref protected function Passes if a link containing a given href (part) is found.
AssertContentTrait::assertNoDuplicateIds protected function Asserts that each HTML ID is used for just a single element.
AssertContentTrait::assertNoEscaped protected function Passes if raw text IS NOT found escaped on loaded page, fail otherwise.
AssertContentTrait::assertNoField protected function Asserts that a field does not exist with the given name or ID.
AssertContentTrait::assertNoFieldById protected function Asserts that a field does not exist with the given ID and value.
AssertContentTrait::assertNoFieldByName protected function Asserts that a field does not exist with the given name and value.
AssertContentTrait::assertNoFieldByXPath protected function Asserts that a field does not exist or its value does not match, by XPath.
AssertContentTrait::assertNoFieldChecked protected function Asserts that a checkbox field in the current page is not checked.
AssertContentTrait::assertNoLink protected function Passes if a link with the specified label is not found.
AssertContentTrait::assertNoLinkByHref protected function Passes if a link containing a given href (part) is not found.
AssertContentTrait::assertNoLinkByHrefInMainRegion protected function Passes if a link containing a given href is not found in the main region.
AssertContentTrait::assertNoOption protected function Asserts that a select option in the current page does not exist.
AssertContentTrait::assertNoOptionSelected protected function Asserts that a select option in the current page is not checked.
AssertContentTrait::assertNoPattern protected function Triggers a pass if the perl regex pattern is not found in raw content.
AssertContentTrait::assertNoRaw protected function Passes if the raw text is NOT found on the loaded page, fail otherwise.
AssertContentTrait::assertNoText protected function Passes if the page (with HTML stripped) does not contains the text.
AssertContentTrait::assertNoTitle protected function Pass if the page title is not the given string.
AssertContentTrait::assertNoUniqueText protected function Passes if the text is found MORE THAN ONCE on the text version of the page.
AssertContentTrait::assertOption protected function Asserts that a select option in the current page exists.
AssertContentTrait::assertOptionByText protected function Asserts that a select option with the visible text exists.
AssertContentTrait::assertOptionSelected protected function Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionSelectedWithDrupalSelector protected function Asserts that a select option in the current page is checked.
AssertContentTrait::assertOptionWithDrupalSelector protected function Asserts that a select option in the current page exists.
AssertContentTrait::assertPattern protected function Triggers a pass if the Perl regex pattern is found in the raw content.
AssertContentTrait::assertRaw protected function Passes if the raw text IS found on the loaded page, fail otherwise.
AssertContentTrait::assertText protected function Passes if the page (with HTML stripped) contains the text.
AssertContentTrait::assertTextHelper protected function Helper for assertText and assertNoText.
AssertContentTrait::assertTextPattern protected function Asserts that a Perl regex pattern is found in the plain-text content.
AssertContentTrait::assertThemeOutput protected function Asserts themed output.
AssertContentTrait::assertTitle protected function Pass if the page title is the given string.
AssertContentTrait::assertUniqueText protected function Passes if the text is found ONLY ONCE on the text version of the page.
AssertContentTrait::assertUniqueTextHelper protected function Helper for assertUniqueText and assertNoUniqueText.
AssertContentTrait::buildXPathQuery protected function Builds an XPath query.
AssertContentTrait::constructFieldXpath protected function Helper: Constructs an XPath for the given set of attributes and value.
AssertContentTrait::cssSelect protected function Searches elements using a CSS selector in the raw content.
AssertContentTrait::getAllOptions protected function Get all option elements, including nested options, in a select.
AssertContentTrait::getDrupalSettings protected function Gets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::getRawContent protected function Gets the current raw content.
AssertContentTrait::getSelectedItem protected function Get the selected value from a select field.
AssertContentTrait::getTextContent protected function Retrieves the plain-text content from the current raw content.
AssertContentTrait::parse protected function Parse content returned from curlExec using DOM and SimpleXML.
AssertContentTrait::removeWhiteSpace protected function Removes all white-space between HTML tags from the raw content.
AssertContentTrait::setDrupalSettings protected function Sets the value of drupalSettings for the currently-loaded page.
AssertContentTrait::setRawContent protected function Sets the raw content (e.g. HTML).
AssertContentTrait::xpath protected function Performs an xpath search on the contents of the internal browser.
ConfigInstallTest::$modules protected static property Modules to install. Overrides KernelTestBase::$modules
ConfigInstallTest::installModules protected function Installs a module.
ConfigInstallTest::setUp protected function Overrides KernelTestBase::setUp
ConfigInstallTest::testCollectionInstallationCollectionConfigEntity public function Tests collections which do not support config entities install correctly.
ConfigInstallTest::testCollectionInstallationCollections public function Tests config objects in collections are installed as expected.
ConfigInstallTest::testCollectionInstallationNoCollections public function Tests that collections are ignored if the event does not return anything.
ConfigInstallTest::testDependencyChecking public function Tests the configuration with unmet dependencies is not installed.
ConfigInstallTest::testIdMisMatch public function Tests installing configuration where the filename and ID do not match.
ConfigInstallTest::testLanguage public function Tests imported configuration entities with/without language information.
ConfigInstallTest::testModuleInstallation public function Tests module installation.
ConfigTestTrait::configImporter protected function Returns a ConfigImporter object to import test configuration.
ConfigTestTrait::copyConfig protected function Copies configuration objects from source storage to target storage.
ExtensionListTestTrait::getModulePath protected function Gets the path for the specified module.
ExtensionListTestTrait::getThemePath protected function Gets the path for the specified theme.
KernelTestBase::$backupGlobals protected property Back up and restore any global variables that may be changed by tests.
KernelTestBase::$backupStaticAttributes protected property Back up and restore static class properties that may be changed by tests.
KernelTestBase::$backupStaticAttributesBlacklist protected property Contains a few static class properties for performance.
KernelTestBase::$classLoader protected property
KernelTestBase::$configImporter protected property @todo Move into Config test base class. 6
KernelTestBase::$configSchemaCheckerExclusions protected static property An array of config object names that are excluded from schema checking. 3
KernelTestBase::$container protected property
KernelTestBase::$databasePrefix protected property
KernelTestBase::$keyValue protected property The key_value service that must persist between container rebuilds.
KernelTestBase::$preserveGlobalState protected property Do not forward any global state from the parent process to the processes
that run the actual tests.
KernelTestBase::$root protected property The app root.
KernelTestBase::$runTestInSeparateProcess protected property Kernel tests are run in separate processes because they allow autoloading
of code from extensions. Running the test in a separate process isolates
this behavior from other tests. Subclasses should not override this
property.
KernelTestBase::$siteDirectory protected property
KernelTestBase::$strictConfigSchema protected property Set to TRUE to strict check all configuration saved. 9
KernelTestBase::$usesSuperUserAccessPolicy protected property Set to TRUE to make user 1 a super user. 7
KernelTestBase::$vfsRoot protected property The virtual filesystem root directory.
KernelTestBase::assertPostConditions protected function 1
KernelTestBase::bootEnvironment protected function Bootstraps a basic test environment.
KernelTestBase::bootKernel protected function Bootstraps a kernel for a test. 1
KernelTestBase::config protected function Configuration accessor for tests. Returns non-overridden configuration.
KernelTestBase::disableModules protected function Disables modules for this test.
KernelTestBase::enableModules protected function Enables modules for this test. 1
KernelTestBase::getConfigSchemaExclusions protected function Gets the config schema exclusions for this test.
KernelTestBase::getDatabaseConnectionInfo protected function Returns the Database connection info to be used for this test. 2
KernelTestBase::getDatabasePrefix public function
KernelTestBase::getExtensionsForModules private function Returns Extension objects for $modules to install.
KernelTestBase::getModulesToEnable private static function Returns the modules to install for this test.
KernelTestBase::initFileCache protected function Initializes the FileCache component.
KernelTestBase::installConfig protected function Installs default configuration for a given list of modules.
KernelTestBase::installEntitySchema protected function Installs the storage schema for a specific entity type.
KernelTestBase::installSchema protected function Installs database tables from a module schema definition.
KernelTestBase::register public function Registers test-specific services. Overrides ServiceProviderInterface::register 27
KernelTestBase::render protected function Renders a render array. 1
KernelTestBase::setInstallProfile protected function Sets the install profile and rebuilds the container to update it.
KernelTestBase::setSetting protected function Sets an in-memory Settings variable.
KernelTestBase::setUpBeforeClass public static function 1
KernelTestBase::setUpFilesystem protected function Sets up the filesystem, so things like the file directory. 2
KernelTestBase::stop Deprecated protected function Stops test execution.
KernelTestBase::tearDown protected function 6
KernelTestBase::tearDownCloseDatabaseConnection public function @after
KernelTestBase::vfsDump protected function Dumps the current state of the virtual filesystem to STDOUT.
KernelTestBase::__get public function
KernelTestBase::__sleep public function Prevents serializing any properties.
PhpUnitWarnings::$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::getRandomGenerator protected function Gets the random generator for the utility methods.
RandomGeneratorTrait::randomMachineName protected function Generates a unique random string containing letters and numbers.
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 Deprecated public function Callback for random string validation.
StorageCopyTrait::replaceStorageContents protected static function Copy the configuration from one storage to another and remove stale items.
TestRequirementsTrait::checkModuleRequirements Deprecated private function Checks missing module requirements.
TestRequirementsTrait::checkRequirements Deprecated protected function Check module requirements for the Drupal use case.
TestRequirementsTrait::getDrupalRoot protected static function Returns the Drupal root directory.

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