Lesson 6(9:36:44) : Test passes on localhost but fails on testnet(Sepolia)

[mrtechnostart]

Smart Contract:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.8;

contract SimpleStorage {
    uint256 public favourateNumber;
    People[] public people;
    mapping(string => uint256) public nameToFavNumber;
    struct People {
        string name;
        uint favourateNumber;
    }

    // Added Virtual so that ExtraStorage Contract can override this function
    function store(uint256 _favourateNumber) public virtual {
        favourateNumber = _favourateNumber;
    }

    function retrive() public view returns (uint256) {
        return favourateNumber;
    }

    function addPeople(string memory _name, uint256 _favourateNumber) public {
        People memory newPeople = People(_name, _favourateNumber);
        people.push(newPeople);
        nameToFavNumber[_name] = _favourateNumber;
    }
}

Lock.js

const {assert} = require("chai");
const { ethers } = require("hardhat");

describe("SimpleStorage", function (){
  let contractFactory,contract;
  beforeEach(async function (){
    contractFactory = await ethers.getContractFactory("SimpleStorage");
    contract = await contractFactory.deploy();
    await contract.deployed();
  })
  it("Should Start With Initial Favourate Number Of 0",async ()=>{
    const finallNumber = await contract.retrive();
    assert.equal(finallNumber.toString(),"0");
  })
  it("Should Store Number Properly",async () =>{
    const transactionNumber = await contract.store("5");
    transactionNumber.wait(5)
    const finallNumber = await contract.retrive();
    assert.equal(finallNumber.toString(),"5");
  })
})

It passes on localhost but when I go for testnets(Sepolia) , Test 2 fails

yarn hardhat test --network sepolia

SimpleStorage
    ✔ Should Start With Initial Favourate Number Of 0 (1754ms)
    1) Should Store Number Properly


  1 passing (41s)
  1 failing

  1) SimpleStorage
       Should Store Number Properly:

      AssertionError: expected '0' to equal '5'
      + expected - actual

      -0
      +5

[pratokko]

When the string "5" is passed as the input parameter to store(), it is not converted to an unsigned integer, so the function is not able to store the correct value.

To fix this error, you can change the input parameter of the store() function from a string to an unsigned integer. Here's an updated version of the test code with the input parameter changed to an unsigned integer:

it("Should Store Number Properly", async () => {
  const transactionNumber = await contract.store(5);
  transactionNumber.wait(5);
  const finalNumber = await contract.retrieve();
  assert.equal(finalNumber.toString(), "5");
});

[mrtechnostart]

Thanks for the explaination, but it still produces same error in sepolia testnet

SimpleStorage
    ✔ Should Start With Initial Favourate Number Of 0 (1928ms)
    1) Should Store Number Properly


  1 passing (30s)
  1 failing

  1) SimpleStorage
       Should Store Number Properly:

      AssertionError: expected '0' to equal '5'
      + expected - actual

      -0
      +5
      
      at Context.<anonymous> (test/Lock.js:19:12)
      at processTicksAndRejections (node:internal/process/task_queues:95:5)



error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[pratokko]

are all your tests passing in the local network?

[mrtechnostart]

Yes! all of em passes with no errors in local network

[pratokko]

okay i would suggest you keep moving then letter you will learn how to write the staging tests and you will learn how to do the tests on a real testnet

[mrtechnostart]

Thanks For Response