get(\Magento\Sales\Model\Order\Item::class); $model->setData('product_options', $options); $this->assertEquals($expectedData, $model->getProductOptions()); } /** * @return array */ public function getProductOptionsDataProvider() { return [ [ '{"option1":1,"option2":2}', ["option1" => 1, "option2" => 2] ], [ ["option1" => 1, "option2" => 2], ["option1" => 1, "option2" => 2] ], ]; } }