public function SerializationTest::testIndexSerialization in Search API 8

Tests that serialization of index entities doesn't lead to data loss.

File

tests/src/Kernel/System/SerializationTest.php, line 66

Class

SerializationTest

Tests that various classes can be properly serialized and/or cloned.

Namespace

Drupal\Tests\search_api\Kernel\System

Code

public function testIndexSerialization() {
  $index = $this->index;

  // Make some changes to the index to ensure they're saved, too.
  $field_helper = \Drupal::getContainer()
    ->get('search_api.fields_helper');
  $field_info = [
    'type' => 'date',
    'datasource_id' => 'entity:node',
    'property_path' => 'uid:entity:created',
  ];
  $index
    ->addField($field_helper
    ->createField($index, 'test1', $field_info));
  $plugin_creation_helper = \Drupal::getContainer()
    ->get('search_api.plugin_helper');
  $index
    ->addDatasource($plugin_creation_helper
    ->createDatasourcePlugin($index, 'entity:user'));
  $index
    ->addProcessor($plugin_creation_helper
    ->createProcessorPlugin($index, 'highlight'));
  $index
    ->setTracker($plugin_creation_helper
    ->createTrackerPlugin($index, 'search_api_test'));

  /** @var \Drupal\search_api\IndexInterface $serialized */
  $serialized = unserialize(serialize($index));
  $this
    ->assertNotEmpty($serialized);
  $storage = \Drupal::entityTypeManager()
    ->getStorage('search_api_index');
  $index
    ->preSave($storage);
  $serialized
    ->preSave($storage);
  $this
    ->assertEquals($index
    ->toArray(), $serialized
    ->toArray());

  // Make sure no object properties will be serialized for an index.
  $index
    ->getDatasources();
  $index
    ->getFields();
  $index
    ->getProcessors();
  $index
    ->getTrackerInstance();
  $index
    ->getPropertyDefinitions(NULL);
  $contains_object = function ($var) use (&$contains_object) {
    if (is_object($var)) {
      return TRUE;
    }
    if (is_array($var)) {
      foreach ($var as $value) {
        if ($contains_object($value)) {
          return TRUE;
        }
      }
    }
    return FALSE;
  };
  $to_serialize = $index
    ->__sleep();
  foreach ($to_serialize as $property) {
    $this
      ->assertFalse($contains_object($index
      ->get($property)), "Serialized property \${$property} contains an object.");
  }
}