FixtureBase.php in Lightning Core 8.4

Namespace

Drupal\Tests\lightning_core

File

tests/src/FixtureBase.php

<?php

namespace Drupal\Tests\lightning_core;

use Behat\Behat\Context\Context;
use Drupal\Core\Entity\EntityInterface;
use Drupal\DrupalUserManagerInterface;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Base class for contexts which set up and tear down a complete test fixture.
 */
abstract class FixtureBase implements Context, ContainerAwareInterface {
  use ContainerAwareTrait;

  /**
   * Modules installed during the scenario.
   *
   * @var string[]
   */
  private $modules = [];

  /**
   * Themes installed during the scenario.
   *
   * @var string[]
   */
  private $themes = [];

  /**
   * Entities to be automatically deleted after the scenario.
   *
   * @var \Drupal\Core\Entity\EntityInterface[]
   */
  private $entities = [];

  /**
   * Raw configuration data to be restored after the scenario, keyed by ID.
   *
   * @var array[]
   */
  private $config = [];

  /**
   * The Drupal Extension's user manager.
   *
   * @var \Drupal\DrupalUserManagerInterface
   */
  private $userManager;

  /**
   * The Drupal user IDs that were logged in during the scenario.
   *
   * @var int[]
   *
   * @see ::setCurrentUser()
   */
  private $users = [];

  /**
   * Entity types for which to delete all content created by the current users.
   *
   * @var string[]
   *
   * @see ::setCurrentUser()
   * @see ::tearDown()
   * @see ::trackUserContent()
   */
  private $trackedEntityTypes = [];

  /**
   * FixtureBase constructor.
   *
   * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
   *   (optional) The service container.
   */
  public function __construct(ContainerInterface $container = NULL) {
    $this
      ->setContainer($container ?: \Drupal::getContainer());
  }

  /**
   * Marks content by the current user to be deleted after the scenario.
   *
   * @param \Drupal\DrupalUserManagerInterface $user_manager
   *   The Drupal Extension's user manager.
   * @param string $entity_type_id
   *   The entity type ID to track. Any entities of this type created by the
   *   current user will be deleted automatically after the scenario.
   */
  public function trackUserContent(DrupalUserManagerInterface $user_manager, $entity_type_id) {
    $this->userManager = $user_manager;
    $this->trackedEntityTypes[$entity_type_id] = $entity_type_id;
  }

  /**
   * Records the current Drupal user ID if possible.
   *
   * @AfterStep
   */
  public function setCurrentUser() {
    if ($this->userManager) {
      $current_user = $this->userManager
        ->getCurrentUser();
      if ($current_user) {
        $this->users[$current_user->uid] = $current_user->uid;
      }
    }
  }

  /**
   * Returns a config object and caches its data for automatic restoration.
   *
   * @param string $id
   *   The name of the config object to return.
   *
   * @see ::tearDown()
   *
   * @return \Drupal\Core\Config\Config
   *   The editable config object.
   */
  protected function config($id) {

    /** @var \Drupal\Core\Config\Config $config */
    $config = $this->container
      ->get('config.factory')
      ->getEditable($id);
    if (empty($this->config[$id])) {
      $this->config[$id] = $config
        ->getRawData();
    }
    return $config;
  }

  /**
   * Saves an entity and marks it for automatic deletion.
   *
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   The entity to save.
   *
   * @see ::tearDown()
   */
  protected function save(EntityInterface $entity) {
    $entity
      ->save();
    array_push($this->entities, $entity);
  }

  /**
   * Installs a module if not already present.
   *
   * @param string $module
   *   The machine name of the module to install.
   *
   * @return bool
   *   TRUE if the module was installed, FALSE otherwise.
   */
  protected function installModule($module) {

    // The container may contain stale data, so we need to update our reference
    // to it.
    $this
      ->resetContainer();
    if ($this->container
      ->get('module_handler')
      ->moduleExists($module)) {
      return FALSE;
    }
    $installed = $this->container
      ->get('module_installer')
      ->install([
      $module,
    ]);
    if ($installed) {
      array_push($this->modules, $module);

      // The container has changed after module installation, so we need to
      // update our reference to it.
      $this
        ->resetContainer();
    }
    return $installed;
  }

  /**
   * Updates the container.
   */
  protected function resetContainer() {
    $container = $this->container
      ->get('kernel')
      ->getContainer();
    $this
      ->setContainer($container);
  }

  /**
   * Installs a theme if not already present.
   *
   * @param string $theme
   *   The machine name of the theme to install.
   */
  protected function installTheme($theme) {
    if ($this->container
      ->get('theme_handler')
      ->themeExists($theme)) {
      return;
    }
    elseif ($this->container
      ->get('theme_installer')
      ->install([
      $theme,
    ])) {
      array_push($this->themes, $theme);

      // This works around a weird hole in the theme extension system. Normally,
      // when a theme is installed, the Block module will react by copying the
      // blocks from the current default theme into the newly installed theme.
      // However, if it can't determine which region the copied blocks should be
      // placed into, it will set them to a blank region and disable them (this
      // behavior is enforced by the Block entity class's preSave() method too).
      // It seems that, in the context of this fixture class, the block system
      // gets incorrect information from the theme system, which causes the
      // blocks not to be copied or set up correctly. So we need to do all that.
      if ($this->container
        ->get('module_handler')
        ->moduleExists('block')) {

        // Copy blocks from the default theme. For whatever reason, the theme
        // system will be unable to read the list of regions from the theme
        // extension system (generally due to the fact that the extension system
        // is so massively awful), so the blocks are copied into limbo (i.e.,
        // disabled and in the '' region).
        block_theme_initialize($theme);

        // Load the copied blocks.
        $blocks = $this->container
          ->get('entity_type.manager')
          ->getStorage('block')
          ->loadByProperties([
          'theme' => $theme,
          'region' => '',
          'status' => FALSE,
        ]);

        /** @var \Drupal\block\BlockInterface $block */
        foreach ($blocks as $block) {

          // Use the config system to edit the blocks directly, since the whole
          // limbo thing is enforced by Block::preSave().
          $this->container
            ->get('config.factory')
            ->getEditable($block
            ->getConfigDependencyName())
            ->set('region', 'content')
            ->set('status', TRUE)
            ->save();
        }
      }
    }
  }

  /**
   * Tears down the fixture.
   */
  protected function tearDown() {
    $this
      ->clearUserContent();
    while ($this->entities) {
      array_pop($this->entities)
        ->delete();
    }
    foreach ($this->config as $id => $data) {
      $this->container
        ->get('config.factory')
        ->getEditable($id)
        ->setData($data)
        ->save(TRUE);
    }
    if ($this->themes) {
      $this->container
        ->get('theme_installer')
        ->uninstall($this->themes);
    }
    if ($this->modules) {
      $this->container
        ->get('module_installer')
        ->uninstall($this->modules);
    }
  }

  /**
   * Deletes all content created by the current users.
   */
  private function clearUserContent() {
    if (!$this->users) {
      return;
    }
    foreach ($this->trackedEntityTypes as $entity_type_id) {

      /** @var \Drupal\Core\Entity\EntityStorageInterface $storage */
      $storage = $this->container
        ->get('entity_type.manager')
        ->getStorage($entity_type_id);
      $entities = $storage
        ->loadByProperties([
        'uid' => $this->users,
      ]);
      $storage
        ->delete($entities);
    }
  }

}

Classes

Name	Description
FixtureBase	Base class for contexts which set up and tear down a complete test fixture.