Lesson 9: Staging test problem: Chainlink keeper not calling fulfillRandomWords function after calling performUpkeep function.

[astr0-g]

First of all, I want to thank Patrick for the wonderful tutorials, I love it!

I am having trouble with Lesson 9 Staging test.

I funded enough link in the chainlink keepers and managed it to run several tests succesful, but it got stuck on performUpkeep and I don't know what is the problem and how to fix this, take a look at my deployed contract:
https://rinkeby.etherscan.io/address/0x0758b908bef67ec9f9ad8a8375c426d5ed24c79b#internaltx

From my point of view, keeper calls performUpkeep to check if anyone is entered etc and then it will call fulfilRandomWords to send prize to the winner and reset everything. But it got stuck after calling performUpkeep, not sure what I did wrong.

if you can take a look at my screenshot below, it is stuck here...

Then I deployed new contract and met the problem again, you can check at:
https://rinkeby.etherscan.io/address/0x4931ef14916ddf057aa85f7b24a8c46e1e92acbd#internaltx

From the new contract above, I entered the raffle with etherscan for the first time, and it made it, I got the prize back from the contract, but then I did with hardhat, here is the result, please see below.

$ yarn hardhat test --network rinkeby
yarn run v1.22.15
$ C:\Users\Administrator\Desktop\hardhat-smartcontract-lottery\node_modules\.bin\hardhat test --network 
rinkeby

  Raffle State Tests
    fulfillRandomWords
Setting up test...
Setting up Listener...
Entering Raffle...
WinnerPicked event appear!
ReferenceError: Cannot access 'winnerStartingBalance' before initialization
    at FragmentRunningEvent.<anonymous> (C:\Users\Administrator\Desktop\hardhat-smartcontract-lottery\test\staging\Raffle.staging.test.js:36:35)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

      1) works with live Chainlink Keepers and Chainlink VRF, we get a random winner


  0 passing (3s)
  1 failing

  1) Raffle State Tests
       fulfillRandomWords
         works with live Chainlink Keepers and Chainlink VRF, we get a random winner:
     ReferenceError: Cannot access 'winnerStartingBalance' before initialization
      at FragmentRunningEvent.<anonymous> (test\staging\Raffle.staging.test.js:36:35)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)

test didn't go correctly which skips the checking balance etc, and it is ok. The worst part is I have to deploy the contract again now, because it is stuck at performUpKeep. If anyone knows the mistakes I made or have any clues please lmk, and I am not sure if this will process correctly in a later time, if so please lmk as well. Thank you!

(my staging test script, just in case of needed)

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

developmentChains.includes(network.name)
    ? describe.skip
    : describe("Raffle State Tests", function () {
          let raffle, deployer, raffleEntranceFee

          beforeEach(async function () {
              deployer = (await getNamedAccounts()).deployer
              raffle = await ethers.getContract("Raffle", deployer)
              raffleEntranceFee = await raffle.getEntranceFee()
          })
          describe("fulfillRandomWords", function () {
              it("works with live Chainlink Keepers and Chainlink VRF, we get a random winner", async function () {
                  console.log("Setting up test...")
                  const startingTimeStamp = await raffle.getLastestTimeStamp()
                  const accounts = await ethers.getSigners()

                  console.log("Setting up Listener...")
                  await new Promise(async (resolve, reject) => {
                      raffle.once("WinnerPicked", async () => {
                          console.log("WinnerPicked event appear!")
                          try {
                              const recentWinner = await raffle.getRecentWinner()
                              const raffleState = await raffle.getRaffleState()
                              const winnerEndingBalance = await accounts[0].getBalance()
                              const endingTimeStamp = await raffle.getLastestTimeStamp()

                              await expect(raffle.getPlayer(0)).to.be.reverted
                              assert.equal(recentWinner.toString(), accounts[0].address)
                              assert.equal(raffleState, 0)
                              assert.equal(
                                  winnerEndingBalance.toString(),
                                  winnerStartingBalance.add(raffleEntranceFee).toString()
                              )
                              assert(endingTimeStamp > startingTimeStamp)
                              resolve()
                          } catch (error) {
                              console.log(error)
                              reject(error)
                          }
                      })
                      console.log("Entering Raffle...")
                      const tx = await raffle.enterRaffle({ value: raffleEntranceFee })
                      await tx.wait(1)
                      console.log("Ok, time to wait...")
                      const winnerStartingBalance = await accounts[0].getBalance()
                      console.log(`winnerStartingBalance is ${winnerStartingBalance}`)
                  })
              })
          })
      })

My Repo: https://github.com/Astr0-G/Hardhat-Smartcontract-Lottery

[alymurtazamemon]

@astr0-g Hi, please check this discussion I have mentioned step by step process #1435

Hope it will help you.

These days Rinkeby network is also creating many issues. You should make sure to mention the step in the above discussion (1st answer) and let me know if you still face the issues.

[astr0-g]

Thanks for replying me! I got it to work by switching to georli!

[krakxn]

Try Goerli, as Rinkeby has been inconsistent lately. If the problem persists, let us know.

[nebelmeerwanderer1]

Hi @astr0-g

also have a look at #1918. looking at the etherscan it looks like your VRF is stuck in pending. I had the same issue on rinkeby and the solution was to move to goerli

[astr0-g]

Thanks guys! It worked!

[krakxn]

All the best!