Lesson 9 | Raffle.test.js

[ghastlypale]

Error:

Error: Timeout of 500000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. 

The part of the code that generates the error:

 it("picks a winner, resets the lottery, and sends money", async () => {
                  const additionalEntrants = 3
                  const startingAccountIndex = 1
                  const accounts = await ethers.getSigners()
                  for (
                      let i = startingAccountIndex;
                      i < startingAccountIndex + additionalEntrants;
                      i++
                  ) {
                      const accountsConnectedRaffle = raffle.connect(accounts[i])
                      await accountsConnectedRaffle.enterRaffle({ value: raffleEntranceFee })
                  }
                  const startingTimeStamp = await raffle.getLatestTimeStamp()

                  await new Promise(async (resolve, reject) => {
                      raffle.once("WinnerPicked", async () => {
                          console.log("Found the event!")
                          try {
                              const recentWinner = await raffle.getRecentWinner()
                              const winnerEndingBalance = await accounts[1].provider.getBalance(
                                  accounts[1].address,
                              )
                              const raffleState = await raffle.getRaffleState()
                              const endingTimeStamp = await raffle.getLatestTimeStamp()
                              const numPlayers = await raffle.getNumberOfPlayers()
                              assert.equal(numPlayers, "0")
                              assert.equal(raffleState, "0")
                              assert(endingTimeStamp > startingTimeStamp)
                              assert.equal(
                                  winnerEndingBalance,
                                  winnerStartingBalance +
                                      (raffleEntranceFee * additionalEntrants + raffleEntranceFee),
                              )
                          } catch (e) {
                              reject(e)
                          }
                          resolve()
                      })
                      const tx = await raffle.performUpkeep("0x")
                      const txReceipt = await tx.wait(1)
                      const winnerStartingBalance = await accounts[1].provider.getBalance()
                      await vrfCoordinatorV2Mock.fulfillRandomWords(
                          txReceipt.logs[1].args.requestId,
                          raffle.target,
                      )
                  })
              })

---

When I run this test, I get a very long wait and then an error.
What's weird is that when I remove the new Promise keyword, the test passes.
I am using ethers and chainlink(what we imported in Raffle.sol) latest version.
Could you please help to solve this problem.
Thank you in advance!

[Gandouye]

Error: Timeout of 400000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.
It took me some time but I went step by step to fix it.
Finally, I saw it was an issue with the latest version of hardhat, ethers…
I am using the latest versions… "ethers": "^6.10.0», «hardhat": "^2.19.4", solidity ^0.8.19
The whole solution could be found at my repo: My Repo or directly at the raffle.staging.test.js @raffle.staging.test.js
Mainly changes in the latest versions… please note the main changes:

const raffleAddress = (await deployments.get("Raffle")).address
raffle = await ethers.getContractAt("Raffle", raffleAddress) //instead of getContract

setTimeout(resolve, 5000)                      
raffle.on("WinnerPicked", async () => { // instead of raffle.once

Hope this will help.