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add gaslimit oterwise tx throws out of gas error #2

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add gaslimit oterwise tx throws out of gas error #2

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142 changes: 64 additions & 78 deletions index.test.js
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Original file line number Diff line number Diff line change
@@ -1,93 +1,79 @@
const { ethers } = require("ethers")
const Ganache = require("ganache-core")
const { ethers } = require("ethers");
const Ganache = require("ganache-core");

const MAINNET_NODE_URL = "<insert mainnet node url here>"
const PRIV_KEY = "<insert ANY private key here>"
const MAINNET_NODE_URL = "<insert mainnet node url here>";
const PRIV_KEY = "<insert ANY private key here>";
const GAS_LIMIT = 2000000;

const startChain = async () => {
const ganache = Ganache.provider({
fork: MAINNET_NODE_URL,
network_id: 1,
accounts: [
{
secretKey: PRIV_KEY,
balance: ethers.utils.hexlify(ethers.utils.parseEther("1000")),
},
],
})
const ganache = Ganache.provider({
fork: MAINNET_NODE_URL,
network_id: 1,
accounts: [
{
secretKey: PRIV_KEY,
balance: ethers.utils.hexlify(ethers.utils.parseEther("1000")),
},
],
gasLimit: GAS_LIMIT,
});

const provider = new ethers.providers.Web3Provider(ganache)
const wallet = new ethers.Wallet(PRIV_KEY, provider)
const provider = new ethers.providers.Web3Provider(ganache);
const wallet = new ethers.Wallet(PRIV_KEY, provider);

return wallet
}
return wallet;
};

jest.setTimeout(100000)
const uniswap = require("@studydefi/money-legos/uniswap")
const erc20 = require("@studydefi/money-legos/erc20")
jest.setTimeout(100000);
const uniswap = require("@studydefi/money-legos/uniswap");
const erc20 = require("@studydefi/money-legos/erc20");

describe("do some tests", () => {
let wallet
let wallet;

beforeAll(async () => {
wallet = await startChain()
})
beforeAll(async () => {
wallet = await startChain();
});

test("initial DAI balance of 0", async () => {
const daiContract = new ethers.Contract(
erc20.dai.address,
erc20.dai.abi,
wallet,
)
const daiBalanceWei = await daiContract.balanceOf(wallet.address)
const daiBalance = ethers.utils.formatUnits(daiBalanceWei, 18)
expect(parseFloat(daiBalance)).toBe(0)
})
test("initial DAI balance of 0", async () => {
const daiContract = new ethers.Contract(erc20.dai.address, erc20.dai.abi, wallet);
const daiBalanceWei = await daiContract.balanceOf(wallet.address);
const daiBalance = ethers.utils.formatUnits(daiBalanceWei, 18);
expect(parseFloat(daiBalance)).toBe(0);
});

test("initial ETH balance of 1000 ETH", async () => {
const ethBalanceWei = await wallet.getBalance()
const ethBalance = ethers.utils.formatEther(ethBalanceWei)
expect(parseFloat(ethBalance)).toBe(1000)
})
test("initial ETH balance of 1000 ETH", async () => {
const ethBalanceWei = await wallet.getBalance();
const ethBalance = ethers.utils.formatEther(ethBalanceWei);
expect(parseFloat(ethBalance)).toBe(1000);
});

test("buy DAI from Uniswap", async () => {
// 1. instantiate contracts
const daiContract = new ethers.Contract(
erc20.dai.address,
erc20.dai.abi,
wallet,
)
const uniswapFactoryContract = new ethers.Contract(
uniswap.factory.address,
uniswap.factory.abi,
wallet,
)
const daiExchangeAddress = await uniswapFactoryContract.getExchange(
erc20.dai.address,
)
const daiExchangeContract = new ethers.Contract(
daiExchangeAddress,
uniswap.exchange.abi,
wallet,
)
test("buy DAI from Uniswap", async () => {
// 1. instantiate contracts
const daiContract = new ethers.Contract(erc20.dai.address, erc20.dai.abi, wallet);
const uniswapFactoryContract = new ethers.Contract(uniswap.factory.address, uniswap.factory.abi, wallet);
const daiExchangeAddress = await uniswapFactoryContract.getExchange(erc20.dai.address, {
gasLimit: GAS_LIMIT,
});
const daiExchangeContract = new ethers.Contract(daiExchangeAddress, uniswap.exchange.abi, wallet);

// 2. do the actual swapping
await daiExchangeContract.ethToTokenSwapInput(
1, // min amount of token retrieved
2525644800, // random timestamp in the future (year 2050)
{
gasLimit: 4000000,
value: ethers.utils.parseEther("5"),
},
)
// 2. do the actual swapping
await daiExchangeContract.ethToTokenSwapInput(
1, // min amount of token retrieved
2525644800, // random timestamp in the future (year 2050)
{
gasLimit: GAS_LIMIT,
value: ethers.utils.parseEther("5"),
}
);

// util function
const fromWei = (x) => ethers.utils.formatUnits(x, 18)
// util function
const fromWei = (x) => ethers.utils.formatUnits(x, 18);

// 3. check DAI balance
const daiBalanceWei = await daiContract.balanceOf(wallet.address)
const daiBalance = parseFloat(fromWei(daiBalanceWei))
expect(daiBalance).toBeGreaterThan(0)
console.log("daiBalance", daiBalance)
})
})
// 3. check DAI balance
const daiBalanceWei = await daiContract.balanceOf(wallet.address);
const daiBalance = parseFloat(fromWei(daiBalanceWei));
expect(daiBalance).toBeGreaterThan(0);
console.log("daiBalance", daiBalance);
});
});