Lesson 7: Error while testing staging script to Rinkeby

[LucidJoy]

Hello community👋,

I am facing an issue while trying to test the staging script on Rinkeby. However, testing on development chains was successful.
Timestamp: 12:17:52

The error is:

My FundMe.staging.test file:

const { ethers, getNamedAccounts, network } = require('hardhat');
const { developmentChains } = require('../../helper-hardhat-config');
const { assert } = require('chai');

// only run on testnets
developmentChains.includes(network.name)
  ? describe.skip
  : describe('FundMe', async () => {
      let fundMe;
      let deployer;
      const sendValue = ethers.utils.parseEther('1');
      // const sendValue = '100000000000000000';

      beforeEach(async function () {
        deployer = (await getNamedAccounts()).deployer;
        fundMe = await ethers.getContract('FundMe', deployer);
      });

      it('Allows people to fund & withdraw', async function () {
        await fundMe.fund({ value: sendValue });
        await fundMe.withdraw();
        const endingBalance = await ethers.provider.getBalance(fundMe.address);
        assert.equal(endingBalance.toString(), '0');
      });
    });

Funds on my metamask wallet:

[alymurtazamemon]

@LucidJoy You do not have 1 ETH in your wallet and you mentioned a 1 ETH sendValue amount.

[ghost]

I'm pretty sure your assertion is correct. @PatrickAlphaC, you expect a balance of 0 here too. I suspect @leonfancy is correct (you ran out of gas, and as a result, nothing withdrew, leaving 0.1 Ether in the contract.) That’s what seems to have happened to me (see Etherscan.) Try fundMe.cheaperWithdraw() instead, that worked for me.

[PatrickAlphaC]

Er wait, whoops, yep you're right I'm backwards! (Sorry, typed too quick)

You'll want to wait some block confirmations.

const tx = await fundMe.withdraw();
await tx.wait(1)

[leonfancy]

@PatrickAlphaC you didn't get the root cause of the issue, it's not about waiting for confirmation. It's about out of gas. I found a solution to this, which is manually set a higher gasLimit:

 await fundMe.withdraw({ gasLimit: 100000 })

[PatrickAlphaC]

Hmm... odd that's what the fix is though... sometimes out of gas errors are deceptive. But glad you got it solved.

[paulcoffee85]

const sendValue = ethers.utils.parseEther('0.1');

Thanks @LucidJoy changing ("1") to ("0.1") fixed the same error for me.