LayoutDefinition example

$this->blockManager = $this->prophesize(BlockManagerInterface::class);
    $this->contextHandler = $this->prophesize(ContextHandlerInterface::class);
    $this->contextRepository = $this->prophesize(ContextRepositoryInterface::class);
    // @todo Refactor this into some better tests in https://www.drupal.org/node/2942605.     $this->eventDispatcher = (new \ReflectionClass(ContainerAwareEventDispatcher::class))->newInstanceWithoutConstructor();

    $this->account = $this->prophesize(AccountInterface::class);
    $subscriber = new BlockComponentRenderArray($this->account->reveal());
    $this->eventDispatcher->addSubscriber($subscriber);

    $layout = $this->prophesize(LayoutInterface::class);
    $layout->getPluginDefinition()->willReturn(new LayoutDefinition([]));
    $layout->build(Argument::type('array'))->willReturnArgument(0);
    $layout_plugin_manager->createInstance('layout_onecol', [])->willReturn($layout->reveal());

    $container = new ContainerBuilder();
    $container->set('current_user', $this->account->reveal());
    $container->set('plugin.manager.block', $this->blockManager->reveal());
    $container->set('plugin.manager.core.layout', $layout_plugin_manager->reveal());
    $container->set('context.handler', $this->contextHandler->reveal());
    $container->set('context.repository', $this->contextRepository->reveal());
    $container->set('event_dispatcher', $this->eventDispatcher);
    \Drupal::setContainer($container);
  }

/** * @coversDefaultClass \Drupal\Core\Layout\LayoutDefault * @group Layout */
class LayoutDefaultTest extends UnitTestCase {

  /** * @covers ::build * @dataProvider providerTestBuild */
  public function testBuild($regions, $expected) {
    $definition = new LayoutDefinition([
      'theme_hook' => 'layout',
      'library' => 'core/drupal',
      'regions' => [
        'left' => [
          'label' => 'Left',
        ],
        'right' => [
          'label' => 'Right',
        ],
      ],
    ]);
    

class LayoutDeriver extends DeriverBase {

  /** * {@inheritdoc} */
  public function getDerivativeDefinitions($base_plugin_definition) {
    if ($base_plugin_definition->get('array_based')) {
      $this->derivatives['array_based'] = [];
    }
    if ($base_plugin_definition->get('invalid_provider')) {
      $this->derivatives['invalid_provider'] = new LayoutDefinition([
        'id' => 'invalid_provider',
        'provider' => 'invalid_provider',
      ]);
      $this->derivatives['invalid_provider']->setClass(LayoutInterface::class);
    }
    return $this->derivatives;
  }

}

  public $class = LayoutDefault::class;

  /** * {@inheritdoc} */
  public function get() {
    return new LayoutDefinition($this->definition);
  }

}

/** * @var \Drupal\Core\Layout\LayoutDefinition */
  protected $pluginDefinition;

  /** * {@inheritdoc} */
  protected function setUp(): void {
    parent::setUp();

    $this->pluginDefinition = new LayoutDefinition([
      'library' => 'field_layout/drupal.layout.twocol',
      'theme_hook' => 'layout__twocol',
      'regions' => [
        'left' => [
          'label' => 'Left',
        ],
        'right' => [
          'label' => 'Right',
        ],
      ],
    ]);