public function testBeforeSaveQtyIsZero() { $object = new \Magento\Framework\DataObject([self::ATTRIBUTE_NAME => ['is_in_stock' => 1, 'qty' => 0], 'stock_data' => ['is_in_stock' => 2, 'qty' => 0]]); $this->model->beforeSave($object); $stockData = $object->getStockData(); $this->assertEquals(0, $stockData['qty']); }