PayPal\Test\Api\DetailsTest::testSerializationDeserialization PHP Метод

    public function testSerializationDeserialization()
    {
        $obj = new Details(self::getJson());
        $this->assertNotNull($obj);
        $this->assertNotNull($obj->getSubtotal());
        $this->assertNotNull($obj->getShipping());
        $this->assertNotNull($obj->getTax());
        $this->assertNotNull($obj->getHandlingFee());
        $this->assertNotNull($obj->getShippingDiscount());
        $this->assertNotNull($obj->getInsurance());
        $this->assertNotNull($obj->getGiftWrap());
        $this->assertNotNull($obj->getFee());
        $this->assertEquals(self::getJson(), $obj->toJson());
        return $obj;
    }