function ViewExecutableTest::testSerialization

Tests serialization of the ViewExecutable object.

File

core/modules/views/tests/src/Kernel/ViewExecutableTest.php, line 499

Class

ViewExecutableTest

Tests the ViewExecutable class.

Namespace

Code

public function testSerialization() : void {
  $view = Views::getView('test_executable_displays');
  $view->setDisplay('page_1');
  $view->setArguments([
    'test',
  ]);
  $view->setCurrentPage(2);
  $serialized = serialize($view);
  // Test the view storage object is not present in the actual serialized
  // string.
  $this->assertStringNotContainsString('"Drupal\\views\\Entity\\View"', $serialized, 'The Drupal\\views\\Entity\\View class was not found in the serialized string.');
  /** @var \Drupal\views\ViewExecutable $unserialized */
  $unserialized = unserialize($serialized);
  $this->assertInstanceOf(ViewExecutable::class, $unserialized);
  $this->assertSame($unserialized->storage
    ->id(), $view->storage
    ->id(), 'The expected storage entity was loaded on the unserialized view.');
  $this->assertSame('page_1', $unserialized->current_display, 'The expected display was set on the unserialized view.');
  $this->assertSame([
    'test',
  ], $unserialized->args, 'The expected argument was set on the unserialized view.');
  $this->assertSame(2, $unserialized->getCurrentPage(), 'The expected current page was set on the unserialized view.');
  // Get the definition of node's nid field, for example. Only get it not from
  // the field manager directly, but from the item data definition. It should
  // be the same base field definition object (the field and item definitions
  // refer to each other).
  // See https://bugs.php.net/bug.php?id=66052
  $field_manager = $this->container
    ->get('entity_field.manager');
  $nid_definition_before = $field_manager->getBaseFieldDefinitions('node')['nid']
    ->getItemDefinition()
    ->getFieldDefinition();
  // Load and execute a view.
  $view_entity = View::load('content');
  $view_executable = $view_entity->getExecutable();
  $view_executable->execute('page_1');
  // Reset the static cache. Don't use clearCachedFieldDefinitions() since
  // that clears the persistent cache and we need to get the serialized cache
  // data.
  $field_manager->useCaches(FALSE);
  $field_manager->useCaches(TRUE);
  // Serialize the ViewExecutable as part of other data.
  unserialize(serialize([
    'SOMETHING UNEXPECTED',
    $view_executable,
  ]));
  // Make sure the serialization of the ViewExecutable didn't influence the
  // field definitions.
  $nid_definition_after = $field_manager->getBaseFieldDefinitions('node')['nid']
    ->getItemDefinition()
    ->getFieldDefinition();
  $this->assertEquals($nid_definition_before->getPropertyDefinitions(), $nid_definition_after->getPropertyDefinitions());
}