public function testUpdate()
 {
     $item = Item::findOne(4);
     $this->assertTrue($item->save());
     $item = ItemWindow::findOne(8);
     $this->assertTrue($item->save());
     $dataSet = $this->getConnection()->createDataSet(['item']);
     $expectedDataSet = new ArrayDataSet(require __DIR__ . '/data/data.php');
     $this->assertDataSetsEqual($expectedDataSet, $dataSet);
 }