You are here

Home » API reference » Drupal 10 » HandlerFieldFieldTest.php

class HandlerFieldFieldTest in Drupal 10

Same name and namespace in other branches
  1. 8 core/modules/field/tests/src/Kernel/Views/HandlerFieldFieldTest.php \Drupal\Tests\field\Kernel\Views\HandlerFieldFieldTest
  2. 9 core/modules/field/tests/src/Kernel/Views/HandlerFieldFieldTest.php \Drupal\Tests\field\Kernel\Views\HandlerFieldFieldTest

Tests the field rendering in views.

@group field

@todo Extend test coverage in #3046722.

Hierarchy

Expanded class hierarchy of HandlerFieldFieldTest

See also

https://www.drupal.org/project/drupal/issues/3046722

File

core/modules/field/tests/src/Kernel/Views/HandlerFieldFieldTest.php, line 24

Namespace

Drupal\Tests\field\Kernel\Views
View source 
class HandlerFieldFieldTest extends KernelTestBase {
  use NodeCreationTrait;

  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'field',
    'field_test',
    'field_test_views',
    'filter',
    'node',
    'system',
    'text',
    'user',
    'views',
  ];

  /**
   * Views used by this test.
   *
   * @var array
   */
  public static $testViews = [
    'test_view_fieldapi',
  ];

  /**
   * Test field storage.
   *
   * @var \Drupal\field\FieldStorageConfigInterface[]
   */
  protected $fieldStorages = [];

  /**
   * Test nodes.
   *
   * @var \Drupal\node\NodeInterface[]
   */
  protected $nodes = [];

  /**
   * Tests fields rendering in views.
   */
  public function testFieldRender() {
    $this
      ->installConfig([
      'filter',
    ]);
    $this
      ->installEntitySchema('user');
    $this
      ->installEntitySchema('node');
    NodeType::create([
      'type' => 'page',
    ])
      ->save();
    ViewTestData::createTestViews(static::class, [
      'field_test_views',
    ]);

    // Setup basic fields.
    $this
      ->createFields();

    // Create some nodes.
    $this->nodes = [];
    for ($i = 0; $i < 3; $i++) {
      $values = [
        'type' => 'page',
      ];
      foreach ([
        0,
        1,
        2,
        5,
      ] as $key) {
        $field_storage = $this->fieldStorages[$key];
        $values[$field_storage
          ->getName()][0]['value'] = $this
          ->randomMachineName(8);
      }

      // Add a hidden value for the no-view field.
      $values[$this->fieldStorages[6]
        ->getName()][0]['value'] = 'ssh secret squirrel';
      for ($j = 0; $j < 5; $j++) {
        $values[$this->fieldStorages[3]
          ->getName()][$j]['value'] = $this
          ->randomMachineName(8);
      }

      // Set this field to be empty.
      $values[$this->fieldStorages[4]
        ->getName()] = [
        [
          'value' => NULL,
        ],
      ];
      $this->nodes[$i] = $this
        ->createNode($values);
    }

    // Perform actual tests.
    $this
      ->doTestSimpleFieldRender();
    $this
      ->doTestInaccessibleFieldRender();
    $this
      ->doTestFormatterSimpleFieldRender();
    $this
      ->doTestMultipleFieldRender();
  }

  /**
   * Tests simple field rendering.
   */
  public function doTestSimpleFieldRender() {
    $view = Views::getView('test_view_fieldapi');
    $this
      ->prepareView($view);
    $view
      ->preview();

    // Tests that the rendered fields match the actual value of the fields.
    for ($i = 0; $i < 3; $i++) {
      for ($key = 0; $key < 2; $key++) {
        $field_name = $this->fieldStorages[$key]
          ->getName();
        $rendered_field = $view->style_plugin
          ->getField($i, $field_name);
        $expected_field = $this->nodes[$i]->{$field_name}->value;
        $this
          ->assertEquals($expected_field, $rendered_field);
      }
    }
  }

  /**
   * Tests inaccessible field rendering.
   */
  public function doTestInaccessibleFieldRender() {
    $view = Views::getView('test_view_fieldapi');
    $this
      ->prepareView($view);
    $view
      ->preview();

    // Check that the field handler for the hidden field is correctly removed
    // from the display.
    // @see https://www.drupal.org/node/2382931
    $this
      ->assertArrayNotHasKey('field_no_view_access', $view->field);

    // Check that the access-denied field is not visible.
    for ($i = 0; $i < 3; $i++) {
      $field_name = $this->fieldStorages[6]
        ->getName();
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);

      // Check that a hidden field is not rendered.
      $this
        ->assertNull($rendered_field);
    }
  }

  /**
   * Tests that fields with formatters runs as expected.
   */
  public function doTestFormatterSimpleFieldRender() {
    $view = Views::getView('test_view_fieldapi');
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$this->fieldStorages[5]
      ->getName()]['type'] = 'text_trimmed';
    $view->displayHandlers
      ->get('default')->options['fields'][$this->fieldStorages[5]
      ->getName()]['settings'] = [
      'trim_length' => 3,
    ];
    $view
      ->preview();

    // Make sure that the formatter works as expected.
    // @todo Add a specific formatter in #3046722.
    // @see https://www.drupal.org/project/drupal/issues/3046722
    for ($i = 0; $i < 2; $i++) {
      $field_name = $this->fieldStorages[5]
        ->getName();
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $this
        ->assertEquals(3, strlen(html_entity_decode($rendered_field)));
    }
  }

  /**
   * Tests multi-value field rendering.
   */
  public function doTestMultipleFieldRender() {
    $view = Views::getView('test_view_fieldapi');
    $field_name = $this->fieldStorages[3]
      ->getName();

    // Test delta limit.
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 3;
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      $pure_items = array_splice($pure_items, 0, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }

      // Check that the amount of items is limited.
      $this
        ->assertEquals(implode(', ', $items), $rendered_field);
    }

    // Test that an empty field is rendered without error.
    $view->style_plugin
      ->getField(4, $this->fieldStorages[4]
      ->getName());
    $view
      ->destroy();

    // Test delta limit + offset
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 3;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_offset'] = 1;
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      $pure_items = array_splice($pure_items, 1, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }

      // Check that the amount of items is limited and the offset is correct.
      $this
        ->assertEquals(implode(', ', $items), $rendered_field);
    }
    $view
      ->destroy();

    // Test delta limit + reverse.
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_offset'] = 0;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 3;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_reversed'] = TRUE;
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      array_splice($pure_items, 0, -3);
      $pure_items = array_reverse($pure_items);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }

      // Check that the amount of items is limited and they are reversed.
      $this
        ->assertEquals(implode(', ', $items), $rendered_field);
    }
    $view
      ->destroy();

    // Test delta first last.
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 0;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_first_last'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_reversed'] = FALSE;
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      $items[] = $pure_items[0]['value'];
      $items[] = $pure_items[4]['value'];

      // Check that items are limited to first and last.
      $this
        ->assertEquals(implode(', ', $items), $rendered_field);
    }
    $view
      ->destroy();

    // Test delta limit + custom separator.
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_first_last'] = FALSE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 3;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['separator'] = ':';
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      $pure_items = array_splice($pure_items, 0, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }

      // Check that the amount of items is limited and the custom separator is
      // correct.
      $this
        ->assertEquals(implode(':', $items), $rendered_field);
    }
    $view
      ->destroy();

    // Test separator with HTML, ensure it is escaped.
    $this
      ->prepareView($view);
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['group_rows'] = TRUE;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['delta_limit'] = 3;
    $view->displayHandlers
      ->get('default')->options['fields'][$field_name]['separator'] = '<h2>test</h2>';
    $view
      ->preview();
    for ($i = 0; $i < 3; $i++) {
      $rendered_field = $view->style_plugin
        ->getField($i, $field_name);
      $items = [];
      $pure_items = $this->nodes[$i]->{$field_name}
        ->getValue();
      $pure_items = array_splice($pure_items, 0, 3);
      foreach ($pure_items as $j => $item) {
        $items[] = $pure_items[$j]['value'];
      }

      // Check that the custom separator is correctly escaped.
      $this
        ->assertEquals(implode('<h2>test</h2>', $items), $rendered_field);
    }
  }

  /**
   * Sets up the testing view with random field data.
   *
   * @param \Drupal\views\ViewExecutable $view
   *   The view to add field data to.
   */
  protected function prepareView(ViewExecutable $view) {
    $view->storage
      ->invalidateCaches();
    $view
      ->initDisplay();
    foreach ($this->fieldStorages as $field_storage) {
      $field_name = $field_storage
        ->getName();
      $view->display_handler->options['fields'][$field_name]['id'] = $field_name;
      $view->display_handler->options['fields'][$field_name]['table'] = 'node__' . $field_name;
      $view->display_handler->options['fields'][$field_name]['field'] = $field_name;
    }
  }

  /**
   * Creates the testing fields.
   */
  protected function createFields() {
    $fields_data = [
      [
        'field_name' => 'field_name_0',
        'type' => 'string',
      ],
      [
        'field_name' => 'field_name_1',
        'type' => 'string',
      ],
      [
        'field_name' => 'field_name_2',
        'type' => 'string',
      ],
      // Field with cardinality > 1.
      [
        'field_name' => 'field_name_3',
        'type' => 'string',
        'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
      ],
      // Field that will have no value.
      [
        'field_name' => 'field_name_4',
        'type' => 'string',
        'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
      ],
      // Text field.
      [
        'field_name' => 'field_name_5',
        'type' => 'text',
      ],
      // Text field with access control.
      // @see field_test_entity_field_access()
      [
        'field_name' => 'field_no_view_access',
        'type' => 'text',
      ],
    ];
    foreach ($fields_data as $field_data) {
      $field_data += [
        'entity_type' => 'node',
      ];
      $field_storage = FieldStorageConfig::create($field_data);
      $field_storage
        ->save();
      $this->fieldStorages[] = $field_storage;
      FieldConfig::create([
        'field_storage' => $field_storage,
        'bundle' => 'page',
      ])
        ->save();
    }
  }

}

Members

Namesort descending Modifiers Type Description 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 the raw text IS NOT found escaped on the 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.
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.
HandlerFieldFieldTest::$fieldStorages protected property Test field storage.
HandlerFieldFieldTest::$modules protected static property Modules to enable. Overrides KernelTestBase::$modules
HandlerFieldFieldTest::$nodes protected property Test nodes.
HandlerFieldFieldTest::$testViews public static property Views used by this test.
HandlerFieldFieldTest::createFields protected function Creates the testing fields.
HandlerFieldFieldTest::doTestFormatterSimpleFieldRender public function Tests that fields with formatters runs as expected.
HandlerFieldFieldTest::doTestInaccessibleFieldRender public function Tests inaccessible field rendering.
HandlerFieldFieldTest::doTestMultipleFieldRender public function Tests multi-value field rendering.
HandlerFieldFieldTest::doTestSimpleFieldRender public function Tests simple field rendering.
HandlerFieldFieldTest::prepareView protected function Sets up the testing view with random field data.
HandlerFieldFieldTest::testFieldRender public function Tests fields rendering in views.
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::$configImporter protected property @todo Move into Config test base class. 3
KernelTestBase::$configSchemaCheckerExclusions protected static property An array of config object names that are excluded from schema checking.
KernelTestBase::$container protected property
KernelTestBase::$databasePrefix protected property
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::$strictConfigSchema protected property Set to TRUE to strict check all configuration saved. 4
KernelTestBase::$vfsRoot protected property The virtual filesystem root directory.
KernelTestBase::assertPostConditions protected function 1
KernelTestBase::bootEnvironment protected function Bootstraps a basic test environment.
KernelTestBase::bootKernel private function Bootstraps a kernel for a test.
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.
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 $modules to enable.
KernelTestBase::getModulesToEnable private static function Returns the modules to enable for this test.
KernelTestBase::initFileCache protected function Initializes the FileCache component.
KernelTestBase::installConfig protected function Installs default configuration for a given list of modules.
KernelTestBase::installEntitySchema protected function Installs the storage schema for a specific entity type.
KernelTestBase::installSchema protected function Installs database tables from a module schema definition.
KernelTestBase::prepareTemplate protected function
KernelTestBase::register public function Registers test-specific services. Overrides ServiceProviderInterface::register 14
KernelTestBase::render protected function Renders a render array.
KernelTestBase::setInstallProfile protected function Sets the install profile and rebuilds the container to update it.
KernelTestBase::setSetting protected function Sets an in-memory Settings variable.
KernelTestBase::setUp protected function 126
KernelTestBase::setUpBeforeClass public static function
KernelTestBase::setUpFilesystem protected function Sets up the filesystem, so things like the file directory. 1
KernelTestBase::stop protected function Stops test execution.
KernelTestBase::tearDown protected function 3
KernelTestBase::tearDownCloseDatabaseConnection public function @after
KernelTestBase::vfsDump protected function Dumps the current state of the virtual filesystem to STDOUT.
KernelTestBase::__sleep public function Prevents serializing any properties.
NodeCreationTrait::createNode protected function Creates a node based on default settings.
NodeCreationTrait::getNodeByTitle public function Get a node from the database based on its title.
PhpUnitWarnings::$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.
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.
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.
TestRequirementsTrait::getDrupalRoot protected static function Returns the Drupal root directory.