Lesson 9: Chainlink VRF is "Success", but the staging test doesn't finish

[TucanCrypto]

I'm using ethers v6 and my staging test is the next one:

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

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

          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 () {
                  const startingTimeStamp = await raffle.getLatestTimeStamp()
                  const accounts = await ethers.getSigners()

                  await new Promise(async (resolve, reject) => {
                      raffle.once("WinnerPiced", async () => {
                          console.log("WinnerPicked event fired!")

                          try {
                              const recentWinner = await raffle.getRecentWinner()
                              const raffleState = await rafflle.getRaffleState()
                              const winnerEndingBalance = await ethers.provider.getBalance(
                                  accounts[0],
                              )
                              const endingTimeStamp = await raffle.getLatestTimeStamp()

                              await expect(raffle.getPlayer(0)).to.be.reverted
                              assert.equal(recentWinner.toString(), accounts[0].target)
                              assert.equal(raffleState, 0)
                              assert.equal(
                                  winnerEndingBalance.toString(),
                                  (winnerStartingBalance + raffleEntranceFee).toString(),
                              )
                              assert.equal(endingTimeStamp > startingTimeStamp)
                              resolve()
                          } catch (error) {
                              console.log(error)
                              reject(error)
                          }
                      })
                      try {
                          await raffle.enterRaffle({ value: raffleEntranceFee })
                          const winnerStartingBalance = await ethers.provider.getBalance(
                              accounts[0],
                          )
                      } catch (error) {
                          reject(error)
                      }
                  })
              })
          })
      })

And even my subscription is a succes, the test doesn't finish until the timeout is over.

[karthikeh02]

i have the same problem like yours, not like exactly same but i dont even know how to migrate from Chainlink VRF V2 to VRF V2.5. If you can gimme your repo link i can look into it and can understand a bit, how these works.

[TucanCrypto]

I use VRF V2, so I didn't migrate from V2 to V2.5; my problem is the all is executed well (in the blockchain all happens well, raffle is completed and rewards distributed); but my test never finishes.

If you want, I can show you how can you create a subscription V2.

[karthikeh02]

if you use VRF V2 in yo code , how did you get your sub Id? The chainlink only gives sub id for VRF V2.5 that is more lengthy than V2(normally 3 or 4 number). i have checked the chainlink website for V2 Subscription but i dont find any

[TucanCrypto]

I create my subscription from the SC:
https://sepolia.etherscan.io/address/0x8103b0a8a00be2ddc778e6e7eaa21791cd364625#writeContract

And then you can check your ID from Chainlink: https://vrf.chain.link/