/**
  * Test an empty Category entity
  */
 public function testEmptyCategory()
 {
     $category = new Category();
     $this->assertEquals('New Category', $category->__toString());
     $this->assertNull($category->getId());
     $this->assertNull($category->getTitle());
     $this->assertEquals(0, $category->getItems()->count());
     $this->assertInstanceOf('\\Doctrine\\Common\\Collections\\ArrayCollection', $category->getItems());
     $this->assertNull($category->getCreatedAt());
     $this->assertNull($category->getUpdatedAt());
 }