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			369 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			369 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { expect, should } from "chai";
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import hre, { ethers, waffle } from "hardhat";
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import type { Signer, Contract } from "ethers";
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import { ecsign, ecrecover, pubToAddress } from "ethereumjs-util";
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import { keccak256 } from "@ethersproject/keccak256";
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import { toUtf8Bytes } from "@ethersproject/strings";
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import { defaultAbiCoder } from "@ethersproject/abi";
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import { BigNumber } from "bignumber.js";
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import { buildDSAv2 } from "../../../scripts/tests/buildDSAv2";
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import { addresses } from "../../../scripts/tests/polygon/addresses";
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import { deployAndEnableConnector } from "../../../scripts/tests/deployAndEnableConnector";
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import { abis } from "../../../scripts/constant/abis";
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import { getMasterSigner } from "../../../scripts/tests/getMasterSigner";
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import { parseEther, parseUnits } from "ethers/lib/utils";
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import { encodeSpells } from "../../../scripts/tests/encodeSpells";
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import encodeFlashcastData from "../../../scripts/tests/encodeFlashcastData";
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import { ConnectV2AaveV3ImportPermitPolygon__factory, IERC20__factory } from "../../../typechain";
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const ABI = [
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  "function DOMAIN_SEPARATOR() public view returns (bytes32)",
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  "function balanceOf(address account) public view returns (uint256)",
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  "function nonces(address owner) public view returns (uint256)"
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];
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const aDaiAddress = "0x82E64f49Ed5EC1bC6e43DAD4FC8Af9bb3A2312EE";
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const aaveAddress = "0x794a61358D6845594F94dc1DB02A252b5b4814aD";
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const account = "0xf04adbf75cdfc5ed26eea4bbbb991db002036bdd";
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const DAI = "0x8f3cf7ad23cd3cadbd9735aff958023239c6a063";
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const USDC = "0x2791bca1f2de4661ed88a30c99a7a9449aa84174";
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const mnemonic = "test test test test test test test test test test test junk";
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const connectorName = "AAVE-V3-IMPORT-PERMIT-X";
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let signer: any, wallet0: any;
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const aaveAbi = [
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  {
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    inputs: [
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      {
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        internalType: "address",
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        name: "asset",
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        type: "address"
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      },
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      {
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        internalType: "uint256",
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        name: "amount",
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        type: "uint256"
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      },
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      {
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        internalType: "uint256",
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        name: "interestRateMode",
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        type: "uint256"
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      },
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      {
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        internalType: "uint16",
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        name: "referralCode",
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        type: "uint16"
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      },
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      {
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        internalType: "address",
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        name: "onBehalfOf",
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        type: "address"
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      }
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    ],
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    name: "borrow",
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    outputs: [],
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    stateMutability: "nonpayable",
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    type: "function"
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  },
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  {
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    inputs: [
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      {
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        internalType: "address",
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        name: "asset",
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        type: "address"
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      },
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      {
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        internalType: "uint256",
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        name: "amount",
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        type: "uint256"
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      },
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      {
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        internalType: "address",
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        name: "onBehalfOf",
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        type: "address"
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      },
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      {
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        internalType: "uint16",
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        name: "referralCode",
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        type: "uint16"
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      }
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    ],
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    name: "deposit",
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    outputs: [],
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    stateMutability: "nonpayable",
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    type: "function"
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  },
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  {
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    inputs: [
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      {
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        internalType: "address",
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        name: "asset",
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        type: "address"
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      },
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      {
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        internalType: "uint256",
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        name: "amount",
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        type: "uint256"
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      },
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      {
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        internalType: "address",
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        name: "onBehalfOf",
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        type: "address"
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      },
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      {
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        internalType: "uint16",
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        name: "referralCode",
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        type: "uint16"
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      }
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    ],
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    name: "supply",
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    outputs: [],
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    stateMutability: "nonpayable",
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    type: "function"
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  }
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];
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const erc20Abi = [
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  {
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    constant: false,
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    inputs: [
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      {
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        name: "_spender",
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        type: "address"
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      },
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      {
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        name: "_value",
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        type: "uint256"
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      }
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    ],
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    name: "approve",
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    outputs: [
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      {
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        name: "",
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        type: "bool"
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      }
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    ],
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    payable: false,
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    stateMutability: "nonpayable",
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    type: "function"
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  },
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  {
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    constant: true,
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    inputs: [],
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    name: "totalSupply",
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    outputs: [
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      {
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        name: "",
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        type: "uint256"
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      }
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    ],
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    payable: false,
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    stateMutability: "view",
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    type: "function"
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  },
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  {
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    constant: true,
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    inputs: [
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      {
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        name: "_owner",
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        type: "address"
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      }
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    ],
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    name: "balanceOf",
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    outputs: [
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      {
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        name: "balance",
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        type: "uint256"
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      }
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    ],
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    payable: false,
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    stateMutability: "view",
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    type: "function"
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  },
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  {
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    constant: false,
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    inputs: [
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      {
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        name: "_to",
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        type: "address"
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      },
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      {
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        name: "_value",
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        type: "uint256"
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      }
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    ],
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    name: "transfer",
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    outputs: [
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      {
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        name: "",
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        type: "bool"
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      }
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    ],
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    payable: false,
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    stateMutability: "nonpayable",
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    type: "function"
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  }
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];
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const token = new ethers.Contract(DAI, erc20Abi);
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const aDai = new ethers.Contract(aDaiAddress, ABI);
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const usdcToken = new ethers.Contract(USDC, erc20Abi);
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const aave = new ethers.Contract(aaveAddress, aaveAbi);
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describe("Import Aave v3 Position", function () {
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  let dsaWallet0: any;
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  let masterSigner: Signer;
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  let instaConnectorsV2: Contract;
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  let connector: any;
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  const wallet = ethers.Wallet.fromMnemonic(mnemonic);
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  before(async () => {
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    await hre.network.provider.request({
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      method: "hardhat_reset",
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      params: [
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        {
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          forking: {
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            //@ts-ignore
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            jsonRpcUrl: hre.config.networks.hardhat.forking.url,
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            blockNumber: 26652016
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          }
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        }
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      ]
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    });
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    masterSigner = await getMasterSigner();
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    [wallet0] = await ethers.getSigners();
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    await hre.network.provider.send("hardhat_setBalance", [account, ethers.utils.parseEther("10").toHexString()]);
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    await hre.network.provider.request({
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      method: "hardhat_impersonateAccount",
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      params: [account]
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    });
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    signer = await ethers.getSigner(account);
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    await token.connect(signer).transfer(wallet0.address, ethers.utils.parseEther("8"));
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    instaConnectorsV2 = await ethers.getContractAt(abis.core.connectorsV2, addresses.core.connectorsV2);
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    connector = await deployAndEnableConnector({
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      connectorName,
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      contractArtifact: ConnectV2AaveV3ImportPermitPolygon__factory,
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      signer: masterSigner,
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      connectors: instaConnectorsV2
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    });
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  });
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  describe("check user AAVE position", async () => {
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    it("Should create Aave v3 position of DAI(collateral) and USDC(debt)", async () => {
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      // approve DAI to aavePool
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      await token.connect(wallet0).approve(aaveAddress, parseEther("8"));
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      //deposit DAI in aave
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      await aave.connect(wallet0).supply(DAI, parseEther("8"), wallet.address, 3228);
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      console.log("Supplied DAI on aave");
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      //borrow USDC from aave
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      await aave.connect(wallet0).borrow(USDC, parseUnits("5", 6), 2, 3228, wallet.address);
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      console.log("Borrowed USDC from aave");
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    });
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    it("Should check position of user", async () => {
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      expect(await aDai.connect(wallet0).balanceOf(wallet.address)).to.be.gte(
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        new BigNumber(8).multipliedBy(1e18).toString()
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      );
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      expect(await usdcToken.connect(wallet0).balanceOf(wallet.address)).to.be.gte(
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        new BigNumber(5).multipliedBy(1e6).toString()
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      );
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    });
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  });
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  describe("Deployment", async () => {
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    it("Should set correct name", async () => {
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      expect(await connector.name()).to.eq("Aave-v3-import-permit-v1");
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    });
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  });
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  describe("DSA wallet setup", async () => {
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    it("Should build DSA v2", async () => {
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      dsaWallet0 = await buildDSAv2(wallet.address);
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      expect(!!dsaWallet0.address).to.be.true;
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    });
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    it("Deposit ETH into DSA wallet", async function () {
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      await wallet0.sendTransaction({
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        to: dsaWallet0.address,
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        value: ethers.utils.parseEther("5")
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      });
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      expect(await ethers.provider.getBalance(dsaWallet0.address)).to.be.gte(ethers.utils.parseEther("5"));
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    });
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  });
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  describe("Aave position migration", async () => {
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    it("Should migrate Aave position", async () => {
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      const DOMAIN_SEPARATOR = await aDai.connect(wallet0).DOMAIN_SEPARATOR();
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      const PERMIT_TYPEHASH = "0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9";
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      let nonce = (await aDai.connect(wallet0).nonces(wallet.address)).toNumber();
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      //Approving max amount
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      const amount = ethers.constants.MaxUint256;
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      const expiry = Date.now() + 20 * 60;
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      const digest = keccak256(
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        ethers.utils.solidityPack(
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          ["bytes1", "bytes1", "bytes32", "bytes32"],
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          [
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            "0x19",
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            "0x01",
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            DOMAIN_SEPARATOR,
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            keccak256(
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              defaultAbiCoder.encode(
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                ["bytes32", "address", "address", "uint256", "uint256", "uint256"],
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                [PERMIT_TYPEHASH, wallet.address, dsaWallet0.address, amount, nonce, expiry]
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              )
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            )
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          ]
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        )
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      );
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      const { v, r, s } = ecsign(Buffer.from(digest.slice(2), "hex"), Buffer.from(wallet.privateKey.slice(2), "hex"));
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      const amount0 = new BigNumber(await usdcToken.connect(wallet0).balanceOf(wallet.address));
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      const amountB = new BigNumber(amount0.toString()).multipliedBy(5).dividedBy(1e4);
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      const amountWithFee = amount0.plus(amountB);
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      const flashSpells = [
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        {
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          connector: "AAVE-V3-IMPORT-PERMIT-X",
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          method: "importAave",
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          args: [
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            wallet.address,
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            [[DAI], [USDC], false, [amountB.toFixed(0)]],
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            [[ethers.utils.hexlify(v)], [ethers.utils.hexlify(r)], [ethers.utils.hexlify(s)], [expiry]]
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          ]
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        },
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        {
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          connector: "INSTAPOOL-C",
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          method: "flashPayback",
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          args: [USDC, amountWithFee.toFixed(0), 0, 0]
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        }
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      ];
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      const spells = [
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        {
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          connector: "INSTAPOOL-C",
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          method: "flashBorrowAndCast",
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          args: [USDC, amount0.toString(), 5, encodeFlashcastData(flashSpells), "0x"]
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        }
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      ];
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      const tx = await dsaWallet0.connect(wallet0).cast(...encodeSpells(spells), wallet.address);
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      const receipt = await tx.wait();
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    });
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    it("Should check DSA AAVE position", async () => {
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      expect(await aDai.connect(wallet0).balanceOf(dsaWallet0.address)).to.be.gte(
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        new BigNumber(8).multipliedBy(1e18).toString()
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      );
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    });
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  });
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});
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