Lesson 6: Test fails on mainnet-fork-dev

[manukumar123]

When I run the test_fund_me.py script on mainnet-fork-dev

from scripts.util_scripts import get_account, LOCAL_BLOCKCHAIN_ENVIRONMENTS
from scripts.deploy import deploy_fund_me
from brownie import network, accounts, exceptions
import pytest


def test_can_fund_and_withdraw():
    account = get_account()
    fund_me = deploy_fund_me()
    entrance_fee = fund_me.getEntranceFee()
    tx = fund_me.fund({"from": account, "value": entrance_fee})
    tx.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == entrance_fee
    tx2 = fund_me.withdraw({"from": account})
    tx2.wait(1)
    assert fund_me.addressToAmountFunded(account.address) == 0


def test_only_owner_can_withdraw():
    if network.show_active() not in LOCAL_BLOCKCHAIN_ENVIRONMENTS:
        pytest.skip("Only for local testing")
    account = get_account()
    fund_me = deploy_fund_me()
    bad_actor = accounts.add()
    with pytest.raises(exceptions.VirtualMachineError):
        fund_me.withdraw({"from": bad_actor})

I get a VirtualMachineError: revert issue:

=================================== FAILURES ===================================
__________________________ test_can_fund_and_withdraw __________________________

    def test_can_fund_and_withdraw():
        account = get_account()
        fund_me = deploy_fund_me()
>       entrance_fee = fund_me.getEntranceFee()
E       brownie.exceptions.VirtualMachineError: revert

tests/test_fund_me.py:10: VirtualMachineError

I also cannot run the fund_and_withdraw script on mainnet-fork-dev

from brownie import FundMe
from scripts.util_scripts import get_account


def fund():
    fund_me = FundMe[-1]
    account = get_account()
    entrance_fee = fund_me.getEntranceFee()
    print(f"The current entrance fee is {entrance_fee}")
    print("Funding")
    fund_me.fund({"from": account, "value": entrance_fee})


def withdraw():
    fund_me = FundMe[-1]
    account = get_account()
    fund_me.withdraw({"from": account})


def main():
    fund()
    withdraw()

ERROR

File "./scripts/fund_and_withdraw.py", line 21, in main
    fund()
  File "./scripts/fund_and_withdraw.py", line 6, in fund
    fund_me = FundMe[-1]
  File "brownie/network/contract.py", line 160, in __getitem__
    return self._contracts[i]
IndexError: list index out of range

[PatrickAlphaC]

IndexError: list index out of range means you haven't deployed the contract yet. For this example / lesson, please skip running tests on the fork for now.

Thank you!