Value printed as [object Object]?

[obc92]

Hello!
I'm currently ending the Lesson 9, so half way of the course. But before keep going with the Lesson, I wanted to build a little code and put in practise many thinks I have learnt till now.
I have been testing this solidity code.
Code.sol function:

uint256 s_SubPrice; //= 0.1 ether;

    constructor (uint256 startPrice) {
        i_owner = msg.sender;
        s_SubPrice = startPrice;
    }

    modifier onlyOwner{
        require(msg.sender==i_owner);  
        _;     
    }

    function changePrice(uint256 newPrice) public onlyOwner {
        s_SubPrice = newPrice;
    }

    //Getter functions
    function getOwner() public view returns(address){
        return i_owner;
    }
    function getPrice() public view returns(uint256) {
        return s_SubPrice;
    }

Code.test.js testing code:

const { assert, expect } = require("chai")
const { network, deployments, ethers } = require("hardhat")
const { developmentChains, networkConfig } = require("../../helper.hardhat")

!developmentChains.includes(network.name)
    ? describe.skip
    : describe("Code Unit Tests", async function () {
          let Code //, raffleContract, vrfCoordinatorV2Mock, raffleEntranceFee, interval, player // , deployer
          const chainId = network.config.chainId
          const NewValue = ethers.utils.parseEther("0.3")

          beforeEach(async function () {
            const {deployer} = await getNamedAccounts()
            accounts = await ethers.getSigners()
            await deployments.fixture(["all"])
            Code = await ethers.getContract("Code", deployer)
          })

          describe("constructor", async function () {
              it("intitiallizes the Code correctly", async function () {
                  const startPrice = await Code.getPrice()
                  assert.equal(startPrice.toString(), ethers.utils.parseEther("0.1"))
              })

          describe("changePrice", async function () {
            it ("Changes the Price correctly", async function () {
              const FirstPrice = await Code.getPrice()
              console.log(`Value1: ${FirstPrice/1e18}`)

              const SetNewPrice = await Code.changePrice(NewValue)//Code breaks here
              //await SetNewPrice.wait(1)
              console.log(`Value2: ${SetNewPrice}`)

              const NewPrice = await Code.getPrice()
              assert.equal(NewPrice.toString(), ethers.utils.parseEther("0.3"))
            })
          })
        })
      })

The code works fine during the deployment and testing but once I print the variables value, Value2 prints this result
Value2: [object Object] and it should print 30000000000000000 (wei). I don't understand as the test changes the price correctly but it shows this [object Object] nosense. Does anyone know why it prints this format?

yarn run v1.22.15
warning package.json: No license field
$ /home/oriok/hh-ff/MyCode/node_modules/.bin/hardhat test


  Code Unit Tests
    constructor
Deployer: 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266
Value: 0.1 ETH
      ✔ intitiallizes the Code correctly
      changePrice
Value1: 0.1
Value2: [object Object]
        ✔ Changes the Price correctly


  2 passing (284ms)

Done in 1.10s.

Thank you guys!

[mattjaf]

your console.logging this function

function changePrice(uint256 newPrice) public onlyOwner {
        s_SubPrice = newPrice;
    }

it doesn't return anything it sets the value for s_SubPrice

[alymurtazamemon]

@obc92 The issue I am seeing is that the parseEther function returns the value as string, and changePrice requires an integer, await Code.changePrice(NewValue).

[uzair011]

Check this link on stack-overflow. It might help your issue...

[obc92]

Solved this, thanks you everyone!