Lesson 9: Promise is returning timeout error

[DorianDaSilva]

     Error: Timeout of 20000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/hh-fcc/hardhat-smartContract-lottery-fcc/test/unit/Raffle.test.js)

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Error:
Test "picks a winner, resets the lottery, and sends money" breaks at await new Promise(async (resolve, reject) => {}

Solution tested:
https://stackoverflow.com/questions/16607039/in-mocha-testing-while-calling-asynchronous-function-how-to-avoid-the-timeout-er#

Result: Did not work for me or implemented calling done() and resolve wrong.

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Code Block: Test

              it("picks a winner, resets the lottery, and sends money", async function () {
                  const additionalEntrants = 3
                  const startingAccountIndex = 1 // deployer = 0
                  const accounts = await ethers.getSigners()
                  for (
                      let i = startingAccountIndex;
                      i < startingAccountIndex + additionalEntrants;
                      i++
                  ) {
                      const accountConnectedRaffle = raffle.connect(accounts[i])
                      await accountConnectedRaffle.enterRaffle({ value: raffleEntranceFee })
                  }
                  const startingTimeStamp = await raffle.getLatestTimeStamp(
                      await new Promise(async (resolve, reject) => {
                          raffle.once("WinnerPicked", async function () {
                              console.log("Found the event")
                              try {
                                  console.log(recentWinner)
                                  console.log(accounts[2])
                                  console.log(accounts[0])
                                  console.log(accounts[1])
                                  console.log(accounts[3])
                                  const recentWinner = await raffle.getRecentWinner()
                                  const raffleState = await raffle.getRaffleState()
                                  const endingTimeStamp = await raffle.getLatestTimeStamp()
                                  const numPlayers = await raffle.getNumberOfPlayers()
                                  assert.equal(numPlayers.toString(), "0")
                                  assert.equal(raffleState.toString(), "0")
                                  assert(endingTimeStamp > startingTimeStamp)
                              } catch (e) {
                                  reject(e)
                              }
                              resolve()
                          })

                          const tx = await raffle.performUpkeep("0x")
                          const txReceipt = await tx.wait(1)
                          await VRFCoordinatorV2Mock.fulfillRandomWords(
                              txReceipt.events[1].args.requestId,
                              raffle.address
                          )
                      })
                  )
              })

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Has anyone encountered this problem? Or have a solution that would work, plz?

Thank you!

[krakxn]

Try this:

Inside hardhat.config.js, could you check if the following is present? If not, be sure to include it, it will fix it.

mocha: {
        timeout: 500000, // 500 seconds max for running tests
    },

Hope this helps!

[DorianDaSilva]

@krakxn I appreciate the input. I already tried increasing time limit & fixed a typo on const startingTimeStamp = await raffle.getLatestTimeStamp() -> Missing closing bracket. The test breaks here const tx = await raffle.performUpkeep("0x") which is consistent with previous unsolved error as seen in discussion: #835