Liquidity.test.js

[Henrychang26]

I am getting this error when I try to test: sender doesn't have enough funds to send tx. The max upfront cost is: 1527451433449412000 and the sender's account only has: 0.

I updated some of the code, is my hardhat setup wrong?
Error starts at when transfering DAI and USDC to owner.

const { expect } = require("chai")
const { ethers } = require("hardhat")

const DAI = "0x6B175474E89094C44Da98b954EedeAC495271d0F"
const USDC = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
const DAI_WHALE = "0x6FF8E4DB500cBd77d1D181B8908E022E29e0Ec4A"
const USDC_WHALE = "0xc3dcB715eDeb0374E968177A3620c441344c3ED8"
const IWETH = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
const wethAmount = ethers.utils.parseEther("1")

describe("LiquidityExamples", () => {
  let liquidityExamples
  let accounts
  let dai
  let usdc
  let owner
  let iweth

  before(async () => {
    accounts = await ethers.getSigners()
    owner = accounts[0]
    console.log(`owner address : ${owner.address}`)
    console.log(`account[0] address : ${accounts[0].address}`)

    const LiquidityExamples = await ethers.getContractFactory(
      "LiquidityExamples"
    )
    liquidityExamples = await LiquidityExamples.deploy()
    await liquidityExamples.deployed()

    dai = await ethers.getContractAt("IERC20", DAI)
    usdc = await ethers.getContractAt("IERC20", USDC)
    iweth = await ethers.getContractAt("IWETH", IWETH)

    // Unlock DAI and USDC whales
    await network.provider.request({
      method: "hardhat_impersonateAccount",
      params: [DAI_WHALE],
    })
    await network.provider.request({
      method: "hardhat_impersonateAccount",
      params: [USDC_WHALE],
    })
    // get Signers
    const daiWhale = await ethers.getSigner(DAI_WHALE)
    const usdcWhale = await ethers.getSigner(USDC_WHALE)

    const daiBal = await dai.balanceOf(DAI_WHALE)
    const usdcBal = await usdc.balanceOf(USDC_WHALE)

    // Send DAI and USDC to accounts[0]
    const daiAmount = 10n * 10n ** 18n
    const usdcAmount = 10n * 10n ** 6n

    await dai.connect(daiWhale).transfer(owner.address, daiAmount)
    await usdc.connect(usdcWhale).transfer(owner.address, usdcAmount)

    const daiBalance = await dai.balanceOf(owner.address)
  })

  it("mintNewPosition", async () => {
    const daiAmount = 1n * 10n ** 18n
    const usdcAmount = 1n * 10n ** 6n

    await dai.connect(owner).transfer(liquidityExamples.address, daiAmount)
    await usdc.connect(owner).transfer(liquidityExamples.address, usdcAmount)

    await liquidityExamples.mintNewPosition()

    console.log(
      "DAI balance after add liquidity",
      await dai.balanceOf(accounts[0].address)
    )
    console.log(
      "USDC balance after add liquidity",
      await usdc.balanceOf(accounts[0].address)
    )
  })

  it.skip("increaseLiquidityCurrentRange", async () => {
    const daiAmount = 20n * 10n ** 18n
    const usdcAmount = 20n * 10n ** 6n

    await dai.connect(accounts[0]).approve(liquidityExamples.address, daiAmount)
    await usdc
      .connect(accounts[0])
      .approve(liquidityExamples.address, usdcAmount)

    await liquidityExamples.increaseLiquidityCurrentRange(daiAmount, usdcAmount)
  })

  it("decreaseLiquidity", async () => {
    const tokenId = await liquidityExamples.tokenId()
    const liquidity = await liquidityExamples.getLiquidity(tokenId)

    await liquidityExamples.decreaseLiquidity(liquidity)

    console.log("--- decrease liquidity ---")
    console.log(`liquidity ${liquidity}`)
    console.log(`dai ${await dai.balanceOf(liquidityExamples.address)}`)
    console.log(`usdc ${await usdc.balanceOf(liquidityExamples.address)}`)
  })

  it("collectAllFees", async () => {
    await liquidityExamples.collectAllFees()

    console.log("--- collect fees ---")
    console.log(`dai ${await dai.balanceOf(liquidityExamples.address)}`)
    console.log(`usdc ${await usdc.balanceOf(liquidityExamples.address)}`)
  })
})

[tign227]

whale don't have enough fee to send tx, plz change your code like below:

1, get whale signer
const dai_whale = await ethers.getImpersonatedSigner(DAI_WAHLE_ADDRESS);
2, transfer fee
await deployer.sendTransaction({ to: dai_whale.address, value: ethers.parseEther("500.0"), });
3. trasanfer DAI
await dai.connect(dai_whale).transfer(deployer, dai_amount);