BookManager example

parent::setUp();

    $this->entityTypeManager = $this->createMock(EntityTypeManagerInterface::class);
    $this->translation = $this->getStringTranslationStub();
    $this->configFactory = $this->getConfigFactoryStub([]);
    $this->bookOutlineStorage = $this->createMock('Drupal\book\BookOutlineStorageInterface');
    $this->renderer = $this->createMock('\Drupal\Core\Render\RendererInterface');
    $this->languageManager = $this->createMock('Drupal\Core\Language\LanguageManagerInterface');
    $this->entityRepository = $this->createMock('Drupal\Core\Entity\EntityRepositoryInterface');
    // Used for both book manager cache services: backend chain and memory.     $cache = $this->createMock(CacheBackendInterface::class);
    $this->bookManager = new BookManager($this->entityTypeManager, $this->translation, $this->configFactory, $this->bookOutlineStorage, $this->renderer, $this->languageManager, $this->entityRepository, $cache, $cache);
  }

  /** * Tests the getBookParents() method. * * @dataProvider providerTestGetBookParents */
  public function testGetBookParents($book, $parent, $expected) {
    $this->assertEquals($expected, $this->bookManager->getBookParents($book, $parent));
  }