# Lesson 7: AssertionError: expected BigNumber{ …(2) } to equal +0

[TheDude-dev]

hi! guys! I'm going through lesson 7 at 11:41:34 of the course, and I'm getting this error while running my test

expected BigNumber{ …(2) } to equal +0

The problem appears to come from here :

//Make sure the funders are reset properly
                  await expect(fundMe.funders(0)).to.be.reverted

                  for (i = 1; i < 6; i++) {
                      assert.equal(
                          await fundMe.addressToAmountFunded(
                              accounts[i].address
                          ),
                          0
                      )

Please, help!

[TheDude-dev]

I've fixed the problem! The issue was coming from my fundMe contract, more precisely my withdraw function.

I had this:

function withdraw() public onlyOwner {
        for (
            uint256 funderindex = 0;
            funderindex < funders.length;
            funderindex++
        ) {
            address funder = funders[funderindex];
            addressToAmountFunded[funder] = 0;
            funders = new address[](0);

(bool callSuccess, ) = payable(msg.sender).call{
            value: address(this).balance
        }("");
        require(callSuccess, "Call failed");
        }
 }

instead of this :

function withdraw() public onlyOwner {
        for (
            uint256 funderindex = 0;
            funderindex < funders.length;
            funderindex++
        ) {
            address funder = funders[funderindex];
            addressToAmountFunded[funder] = 0;
        }

funders = new address[](0);

(bool callSuccess, ) = payable(msg.sender).call{
            value: address(this).balance
        }("");
        require(callSuccess, "Call failed");
   }