Merge pull request #11 from Instadapp/flashloan-setup

Polygon flashloan

contracts/mock/aave-v2-migrator/main.sol

@@ -0,0 +1,113 @@
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+
+import { Variables } from "./variables.sol";
+
+/**
+ * @title InstaAccountV2 Implementation-M2.
+ * @dev DeFi Smart Account Wallet for polygon migration.
+ */
+
+interface ConnectorsInterface {
+    function isConnectors(string[] calldata connectorNames) external view returns (bool, address[] memory);
+}
+
+contract Constants is Variables {
+    // InstaIndex Address.
+    address internal constant instaIndex = 0xA9B99766E6C676Cf1975c0D3166F96C0848fF5ad;
+    // Migration contract Address.
+    address internal constant migrationContract = 0xDc64a140Aa3E981100a9becA4E685f962f0cF6C9;
+    // Connnectors Address.
+    address public constant connectorsM1 = 0x0a0a82D2F86b9E46AE60E22FCE4e8b916F858Ddc;
+}
+
+contract InstaImplementationM2 is Constants {
+
+    function decodeEvent(bytes memory response) internal pure returns (string memory _eventCode, bytes memory _eventParams) {
+        if (response.length > 0) {
+            (_eventCode, _eventParams) = abi.decode(response, (string, bytes));
+        }
+    }
+
+    event LogCastMigrate(
+        address indexed origin,
+        address indexed sender,
+        uint256 value,
+        string[] targetsNames,
+        address[] targets,
+        string[] eventNames,
+        bytes[] eventParams
+    );
+
+    receive() external payable {}
+
+     /**
+     * @dev Delegate the calls to Connector.
+     * @param _target Connector address
+     * @param _data CallData of function.
+    */
+    function spell(address _target, bytes memory _data) internal returns (bytes memory response) {
+        require(_target != address(0), "target-invalid");
+        assembly {
+            let succeeded := delegatecall(gas(), _target, add(_data, 0x20), mload(_data), 0, 0)
+            let size := returndatasize()
+            
+            response := mload(0x40)
+            mstore(0x40, add(response, and(add(add(size, 0x20), 0x1f), not(0x1f))))
+            mstore(response, size)
+            returndatacopy(add(response, 0x20), 0, size)
+
+            switch iszero(succeeded)
+                case 1 {
+                    // throw if delegatecall failed
+                    returndatacopy(0x00, 0x00, size)
+                    revert(0x00, size)
+                }
+        }
+    }
+
+    /**
+     * @dev This is the main function, Where all the different functions are called
+     * from Smart Account.
+     * @param _targetNames Array of Connector address.
+     * @param _datas Array of Calldata.
+    */
+    function castMigrate(
+        string[] calldata _targetNames,
+        bytes[] calldata _datas,
+        address _origin
+    )
+    external
+    payable 
+    returns (bytes32) // Dummy return to fix instaIndex buildWithCast function
+    {   
+        uint256 _length = _targetNames.length;
+        require(msg.sender == migrationContract, "2: permission-denied");
+        require(_length != 0, "2: length-invalid");
+        require(_length == _datas.length , "2: array-length-invalid");
+
+        string[] memory eventNames = new string[](_length);
+        bytes[] memory eventParams = new bytes[](_length);
+
+        // TODO: restrict migration contract to run something specific? or give is all access as it doesn't have power to run anything else
+        (bool isOk, address[] memory _targets) = ConnectorsInterface(connectorsM1).isConnectors(_targetNames);
+
+        require(isOk, "2: not-connector");
+
+        for (uint i = 0; i < _length; i++) {
+            bytes memory response = spell(_targets[i], _datas[i]);
+            (eventNames[i], eventParams[i]) = decodeEvent(response);
+        }
+
+        emit LogCastMigrate(
+            _origin,
+            msg.sender,
+            msg.value,
+            _targetNames,
+            _targets,
+            eventNames,
+            eventParams
+        );
+    }
+
+}

contracts/mock/aave-v2-migrator/variables.sol

@@ -0,0 +1,6 @@
+pragma solidity ^0.7.0;
+
+contract Variables {
+    // Auth Module(Address of Auth => bool).
+    mapping (address => bool) internal _auth;
+}

contracts/receivers/aave-v2-receiver/events.sol

@@ -27,4 +27,12 @@ contract Events {
     );
 
     event LogMigrate(uint _id);
+
+    event LogFlashLoan(
+        address indexed sender,
+        address[] tokens,
+        uint[] amounts,
+        uint[] feeAmts,
+        uint route
+    );
 }

contracts/receivers/aave-v2-receiver/interfaces.sol

@@ -25,6 +25,15 @@ struct AaveData {
     address[] borrowTokens;
 }
 
+struct CastData {
+    address dsa;
+    uint route;
+    address[] tokens;
+    uint[] amounts;
+    string[] dsaTargets;
+    bytes[] dsaData;
+}
+
 interface IndexInterface {
     function master() external view returns (address);
 }
@@ -99,5 +108,9 @@ interface AaveInterface {
 }
 
 interface InstaListInterface {
-    function accountID(address) external view returns (uint);
+    function accountID(address) external view returns (uint64);
+}
+
+interface DSAInterface {
+    function castMigrate(string[] calldata _targets, bytes[] calldata _datas, address _origin) external payable returns (bytes32);
 }

contracts/receivers/aave-v2-receiver/main.sol

@@ -4,7 +4,7 @@ pragma experimental ABIEncoderV2;
 import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
 import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import { TokenInterface } from "../../common/interfaces.sol";
-import { AccountInterface, AaveData, AaveInterface, IndexInterface } from "./interfaces.sol";
+import { AccountInterface, AaveData, AaveInterface, IndexInterface, CastData, DSAInterface } from "./interfaces.sol";
 import { Events } from "./events.sol";
 import { Helpers } from "./helpers.sol";
 
@@ -126,7 +126,58 @@ contract AaveV2Migrator is MigrateResolver {
     }
 }
 
-contract InstaAaveV2MigratorReceiverImplementation is AaveV2Migrator {
+contract InstaFlash is AaveV2Migrator {
+
+    using SafeERC20 for IERC20;
+
+    /**
+     * FOR SECURITY PURPOSE
+     * only Smart DEFI Account can access the liquidity pool contract
+     */
+    modifier isDSA {
+        uint64 id = instaList.accountID(msg.sender);
+        require(id != 0, "not-dsa-id");
+        _;
+    }
+
+    function initiateFlashLoan(
+        address[] calldata _tokens,	
+        uint256[] calldata _amounts,	
+        uint /*_route */, // no use of route but just to follow current flashloan pattern
+        bytes calldata data
+    ) external isDSA {	
+        uint _length = _tokens.length;
+        require(_length == _amounts.length, "not-equal-length");
+        uint[] memory iniBal = new uint[](_length);
+        IERC20[] memory _tokenContracts = new IERC20[](_length);
+        for (uint i = 0; i < _length; i++) {
+            _tokenContracts[i] = IERC20(_tokens[i]);
+            iniBal[i] = _tokenContracts[i].balanceOf(address(this));
+            _tokenContracts[i].safeTransfer(msg.sender, _amounts[i]);
+        }
+        CastData memory cd;
+        (cd.dsa, cd.route, cd.tokens, cd.amounts, cd.dsaTargets, cd.dsaData) = abi.decode(
+            data,
+            (address, uint256, address[], uint256[], string[], bytes[])
+        );
+        DSAInterface(msg.sender).castMigrate(cd.dsaTargets, cd.dsaData, 0xB7fA44c2E964B6EB24893f7082Ecc08c8d0c0F87);
+        for (uint i = 0; i < _length; i++) {
+            uint _finBal = _tokenContracts[i].balanceOf(address(this));
+            require(_finBal >= iniBal[i], "flashloan-not-returned");
+        }
+        uint[] memory _feeAmts = new uint[](_length);
+        emit LogFlashLoan(
+            msg.sender,
+            _tokens,
+            _amounts,
+            _feeAmts,
+            0
+        );
+    }
+
+}
+
+contract InstaAaveV2MigratorReceiverImplementation is InstaFlash {
     function migrate(uint _id) external {
         bytes memory _data = positions[_id];
 

contracts/receivers/flashloan-connector/events.sol

@@ -0,0 +1,10 @@
+pragma solidity >=0.7.0;
+pragma experimental ABIEncoderV2;
+
+contract Events {
+    event LogFlashBorrow(address token, uint256 tokenAmt);
+    event LogFlashPayback(address token, uint256 tokenAmt);
+
+    event LogFlashMultiBorrow(address[] token, uint256[] tokenAmts);
+    event LogFlashMultiPayback(address[] token, uint256[] tokenAmts);
+}

contracts/receivers/flashloan-connector/interfaces.sol

@@ -0,0 +1,6 @@
+pragma solidity >=0.7.0;
+pragma experimental ABIEncoderV2;
+
+interface InstaFlashV2Interface {
+    function initiateFlashLoan(address[] calldata tokens, uint256[] calldata amts, uint route, bytes calldata data) external;
+}

contracts/receivers/flashloan-connector/main.sol

@@ -0,0 +1,118 @@
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+
+import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
+import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+import { TokenInterface } from "../../common/interfaces.sol";
+import { DSMath } from "../../common/math.sol";
+import { Stores } from "../../common/stores-polygon.sol";
+import { Variables } from "./variables.sol";
+import { Events } from "./events.sol";
+
+contract LiquidityResolver is DSMath, Stores, Variables, Events {
+    using SafeERC20 for IERC20;
+
+    /**
+     * @dev Borrow Flashloan and Cast spells.
+     * @param token Token Address.
+     * @param amt Token Amount.
+     * @param data targets & data for cast.
+     */
+    function flashBorrowAndCast(
+        address token,
+        uint amt,
+        uint route,
+        bytes memory data
+    ) external payable returns (string memory _eventName, bytes memory _eventParam) {
+        address[] memory tokens = new address[](1);
+        uint[] memory amts = new uint[](1);
+        tokens[0] = token;
+        amts[0] = amt;
+
+        instaPool.initiateFlashLoan(tokens, amts, route, data);
+
+        _eventName = "LogFlashBorrow(address,uint256)";
+        _eventParam = abi.encode(token, amt);
+    }
+
+    /**
+     * @dev Return token to InstaPool.
+     * @param token Token Address.
+     * @param amt Token Amount.
+     * @param getId Get token amount at this ID from `InstaMemory` Contract.
+     * @param setId Set token amount at this ID in `InstaMemory` Contract.
+    */
+    function flashPayback(
+        address token,
+        uint amt,
+        uint getId,
+        uint setId
+    ) external payable returns (string memory _eventName, bytes memory _eventParam) {
+        uint _amt = getUint(getId, amt);
+        
+        IERC20 tokenContract = IERC20(token);
+
+        tokenContract.safeTransfer(address(instaPool), _amt);
+
+        setUint(setId, _amt);
+
+        _eventName = "LogFlashPayback(address,uint256)";
+        _eventParam = abi.encode(token, _amt);
+    }
+
+    /**
+     * @dev Borrow Flashloan and Cast spells.
+     * @param tokens Array of token Addresses.
+     * @param amts Array of token Amounts.
+     * @param route Route to borrow.
+     * @param data targets & data for cast.
+     */
+    function flashMultiBorrowAndCast(
+        address[] calldata tokens,
+        uint[] calldata amts,
+        uint route,
+        bytes calldata data
+    ) external payable returns (string memory _eventName, bytes memory _eventParam) {
+        instaPool.initiateFlashLoan(tokens, amts, route, data);
+
+        _eventName = "LogFlashMultiBorrow(address[],uint256[])";
+        _eventParam = abi.encode(tokens, amts);
+    }
+
+    /**
+     * @dev Return Multiple token liquidity to InstaPool.
+     * @param tokens Array of token addresses.
+     * @param amts Array of token amounts.
+     * @param getId get token amounts at this IDs from `InstaMemory` Contract.
+     * @param setId set token amounts at this IDs in `InstaMemory` Contract.
+    */
+    function flashMultiPayback(
+        address[] calldata tokens,
+        uint[] calldata amts,
+        uint[] calldata getId,
+        uint[] calldata setId
+    ) external payable returns (string memory _eventName, bytes memory _eventParam) {
+        uint _length = tokens.length;
+
+        uint[] memory _amts = new uint[](_length);
+
+        for (uint i = 0; i < _length; i++) {
+            uint _amt = getUint(getId[i], amts[i]);
+
+            _amts[i] = _amt;
+
+            IERC20 tokenContract = IERC20(tokens[i]);
+
+            tokenContract.safeTransfer(address(instaPool), _amt);
+
+            setUint(setId[i], _amt);
+        }
+
+        _eventName = "LogFlashMultiPayback(address[],uint256[])";
+        _eventParam = abi.encode(tokens, _amts);
+    }
+}
+
+contract ConnectInstaPool is LiquidityResolver {
+    string public name = "Instapool-v1";
+}

contracts/receivers/flashloan-connector/variables.sol

@@ -0,0 +1,12 @@
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+
+import { InstaFlashV2Interface } from "./interfaces.sol";
+
+contract Variables {
+
+    /**
+    * @dev Instapool / Receiver contract proxy
+    */
+    InstaFlashV2Interface public constant instaPool = InstaFlashV2Interface(0x4A090897f47993C2504144419751D6A91D79AbF4);
+}

test/receiver_flashloan.test.js

@@ -0,0 +1,234 @@
+const hre = require("hardhat");
+const { expect } = require("chai");
+const { ethers, network, waffle } = hre;
+const { provider, deployContract } = waffle
+
+const Receiver = require("../artifacts/contracts/receivers/aave-v2-receiver/main.sol/InstaAaveV2MigratorReceiverImplementation.json")
+const Implementation = require("../artifacts/contracts/mock/aave-v2-migrator/main.sol/InstaImplementationM2.json")
+
+describe("Receiver", function() {
+  let accounts, account, receiver, master, implementation
+
+  const usdc = '0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174'
+  const usdt = '0xc2132D05D31c914a87C6611C10748AEb04B58e8F'
+  const dai = '0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063'
+  const wbtc = '0x1BFD67037B42Cf73acF2047067bd4F2C47D9BfD6'
+  const weth = '0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619'
+  const wmatic = '0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270'
+
+  const instaImplementations = '0x39d3d5e7c11D61E072511485878dd84711c19d4A'
+
+  const maxValue = '115792089237316195423570985008687907853269984665640564039457584007913129639935'
+
+  const erc20Abi = [
+    "function balanceOf(address) view returns (uint)",
+    "function transfer(address to, uint amount)",
+    "function approve(address spender, uint amount)"
+  ]
+
+  const instaImplementationABI = [
+    "function addImplementation(address _implementation, bytes4[] calldata _sigs)",
+    "function getImplementation(bytes4 _sig) view returns (address)",
+    "function removeImplementation(address _implementation)"
+  ]
+
+  const implementations_m2Sigs = ["0x5a19a5eb"]
+
+  before(async function() {
+    accounts = await ethers.getSigners()
+    account = accounts[0]
+
+    masterAddress = "0x31de2088f38ed7F8a4231dE03973814edA1f8773"
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ masterAddress ]
+    })
+
+    master = ethers.provider.getSigner(masterAddress)
+
+    receiver = await deployContract(account, Receiver, [])
+    implementation = await deployContract(account, Implementation, [])
+
+    console.log("Receiver deployed: ", receiver.address)
+    console.log("ImplementationM2 deployed: ", implementation.address)
+
+    await master.sendTransaction({
+      to: receiver.address,
+      value: ethers.utils.parseEther("45400000")
+    })
+
+    const usdcHolderAddr = '0x986a2fCa9eDa0e06fBf7839B89BfC006eE2a23Dd' // 1,000,000
+    await account.sendTransaction({ to: usdcHolderAddr, value: ethers.utils.parseEther('1') })
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ usdcHolderAddr ]
+    })
+    const usdcHolder = ethers.provider.getSigner(usdcHolderAddr)
+    const usdcContract = new ethers.Contract(usdc, erc20Abi, usdcHolder)
+    await usdcContract.transfer(receiver.address, ethers.utils.parseUnits('1000000', 6))
+
+    const daiHolderAddr = '0x7A61A0Ed364E599Ae4748D1EbE74bf236Dd27B09' // 300,000
+    await accounts[0].sendTransaction({ to: daiHolderAddr, value: ethers.utils.parseEther('1') })
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ daiHolderAddr ]
+    })
+    const daiHolder = ethers.provider.getSigner(daiHolderAddr)
+    const daiContract = new ethers.Contract(dai, erc20Abi, daiHolder)
+    await daiContract.transfer(receiver.address, ethers.utils.parseUnits('10000', 18))
+  })
+
+  // it("should change the implementation", async function() {
+  //   const funder = await deployContract(master, Funder, [])
+  //   await master.sendTransaction({
+  //     to: funder.address,
+  //     value: ethers.utils.parseEther("10")
+  //   })
+
+  //   await funder.kill()
+
+  //   const proxyAbi = [
+  //     "function upgradeTo(address newImplementation)"
+  //   ]
+
+  //   const masterProxyAddr = '0x697860CeE594c577F18f71cAf3d8B68D913c7366'
+  //   const masterProxySigner = ethers.provider.getSigner(masterProxyAddr)
+
+  //   const receiverProxy = '0x4A090897f47993C2504144419751D6A91D79AbF4'
+  //   const receiverProxyContract = new ethers.Contract(receiverProxy, proxyAbi, masterProxySigner)
+
+  //   await receiverProxyContract.upgradeTo(receiver.address)
+  // })
+
+  it("should match matic receiver", async function() {
+    const maticReceiver = await receiver.maticReceiver()
+
+    expect(maticReceiver).to.be.equal('0x0000000000000000000000000000000000001001')
+  })
+
+  it("should set implementationsM2", async function() {
+
+    const instaImplementationsContract = new ethers.Contract(instaImplementations, instaImplementationABI, master)
+    await instaImplementationsContract.connect(master).removeImplementation('0xEAac5739eB532110431b14D01017506DBA8f7b07')
+    await instaImplementationsContract.connect(master).addImplementation(implementation.address, implementations_m2Sigs)
+  })
+
+  it("Should not flashloan non-dsa address", async function() {
+    const eoaAddr = '0xA35f3FEFEcb5160327d1B6A210b60D1e1d7968e3'
+
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ eoaAddr ]
+    })
+
+    const eoaSigner = ethers.provider.getSigner(eoaAddr)
+
+    await expect(receiver.connect(eoaSigner).initiateFlashLoan(
+      [usdc],
+      [ethers.utils.parseUnits('1000', 6)],
+      0,
+      '0x'
+    )).to.be.revertedWith('not-dsa-id')
+  })
+
+  it("single token flashloan", async function() {
+    const dsaAddr = '0x150Acc42e6751776c9E784EfF830cB4f35aE98f3'
+
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ dsaAddr ]
+    })
+
+    const dsaSigner = ethers.provider.getSigner(dsaAddr)
+
+    const aave = new ethers.utils.Interface([
+      'function deposit(address,uint256,uint256,uint256)',
+      'function withdraw(address,uint256,uint256,uint256)'
+    ])
+
+    const basic = new ethers.utils.Interface([
+      'function withdraw(address,uint256,address,uint256,uint256)'
+    ])
+
+    const abiCoder = ethers.utils.defaultAbiCoder
+
+    const abiData = abiCoder.encode(
+      ['address', 'uint256', 'address[]', 'uint256[]', 'string[]', 'bytes[]'],
+      [
+        dsaAddr,
+        0,
+        [usdc],
+        [ethers.utils.parseUnits('1000', 6)],
+        ['AAVE-V2-A', 'AAVE-V2-A', 'BASIC-A'],
+        [
+          aave.encodeFunctionData('deposit', [usdc, ethers.utils.parseUnits('1000', 6), 0, 0]),
+          aave.encodeFunctionData('withdraw', [usdc, ethers.utils.parseUnits('1000', 6), 0, 0]),
+          basic.encodeFunctionData('withdraw', [usdc, ethers.utils.parseUnits('1000', 6), receiver.address, 0, 0])
+        ]
+      ]
+    )
+
+    // console.log('abiData', abiData)
+
+    const tx = await receiver.connect(dsaSigner).initiateFlashLoan(
+      [usdc],
+      [ethers.utils.parseUnits('1000', 6)],
+      0,
+      abiData
+    )
+
+    await tx.wait()
+  })
+
+  it("multi token flashloan", async function() {
+    const dsaAddr = '0x150Acc42e6751776c9E784EfF830cB4f35aE98f3'
+
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ dsaAddr ]
+    })
+
+    const dsaSigner = ethers.provider.getSigner(dsaAddr)
+
+    const aave = new ethers.utils.Interface([
+      'function deposit(address,uint256,uint256,uint256)',
+      'function withdraw(address,uint256,uint256,uint256)'
+    ])
+
+    const basic = new ethers.utils.Interface([
+      'function withdraw(address,uint256,address,uint256,uint256)'
+    ])
+
+    const abiCoder = ethers.utils.defaultAbiCoder
+
+    const abiData = abiCoder.encode(
+      ['address', 'uint256', 'address[]', 'uint256[]', 'string[]', 'bytes[]'],
+      [
+        dsaAddr,
+        0,
+        [usdc, dai],
+        [ethers.utils.parseUnits('1000', 6), ethers.utils.parseEther('5000')],
+        ['AAVE-V2-A', 'AAVE-V2-A', 'AAVE-V2-A', 'AAVE-V2-A', 'BASIC-A', 'BASIC-A'],
+        [
+          aave.encodeFunctionData('deposit', [usdc, ethers.utils.parseUnits('1000', 6), 0, 0]),
+          aave.encodeFunctionData('deposit', [dai, ethers.utils.parseEther('5000'), 0, 0]),
+          aave.encodeFunctionData('withdraw', [usdc, ethers.utils.parseUnits('1000', 6), 0, 0]),
+          aave.encodeFunctionData('withdraw', [dai, ethers.utils.parseEther('5000'), 0, 0]),
+          basic.encodeFunctionData('withdraw', [usdc, ethers.utils.parseUnits('1000', 6), receiver.address, 0, 0]),
+          basic.encodeFunctionData('withdraw', [dai, ethers.utils.parseEther('5000'), receiver.address, 0, 0])
+        ]
+      ]
+    )
+
+    // console.log('abiData', abiData)
+
+    const tx = await receiver.connect(dsaSigner).initiateFlashLoan(
+      [usdc, dai],
+      [ethers.utils.parseUnits('1000', 6), ethers.utils.parseEther('5000')],
+      0,
+      abiData
+    )
+
+    await tx.wait()
+  })
+})

test/receiver_l2.test.js

@@ -5,7 +5,8 @@ const { provider, deployContract } = waffle
 
 const Migrator = require("../artifacts/contracts/receivers/aave-v2-receiver/main.sol/InstaAaveV2MigratorReceiverImplementation.json")
 const TokenMappingContract = require("../artifacts/contracts/receivers/mapping/main.sol/InstaPolygonTokenMapping.json")
-const Implementations_m2Contract = require("../artifacts/contracts/implementation/aave-v2-migrator/main.sol/InstaImplementationM1.json")
+const Implementations_m2Contract = require("../artifacts/contracts/implementation/aave-v2-migrator/main.sol/InstaImplementationM2.json")
+const Funder = require("../artifacts/contracts/mock/funder.sol/Funder.json");
 
 const tokenMaps = {
   // polygon address : main net address
@@ -21,7 +22,7 @@ const tokenMaps = {
 
 // 
 describe("Migrator", function() {
-  let accounts, masterAddress, master, migrator, ethereum, instapool, tokenMapping, implementations_m2Contract
+  let accounts, masterAddress, master, migrator, ethereum, instapool, tokenMapping, receiverSigner
 
   const erc20Abi = [
     "function balanceOf(address) view returns (uint)",
@@ -47,6 +48,8 @@ describe("Migrator", function() {
 
   const instaConnectorsV2 = '0x0a0a82D2F86b9E46AE60E22FCE4e8b916F858Ddc'
   const instaImplementations = '0x39d3d5e7c11D61E072511485878dd84711c19d4A'
+
+  const receiverMsgSender = '0x0000000000000000000000000000000000001001'
   
 
   const maxValue = '115792089237316195423570985008687907853269984665640564039457584007913129639935'
@@ -60,19 +63,26 @@ describe("Migrator", function() {
       params: [ masterAddress ]
     })
 
+    await hre.network.provider.request({
+      method: "hardhat_impersonateAccount",
+      params: [ receiverMsgSender ]
+    })
+
     accounts = await ethers.getSigners();
     master = ethers.provider.getSigner(masterAddress)
 
+    receiverSigner = ethers.provider.getSigner(receiverMsgSender)
+
     migrator = await deployContract(master, Migrator, [])
     
     // instapool = await deployContract(master, InstaPool, [])
     tokenMapping = await deployContract(master, TokenMappingContract, [Object.values(tokenMaps), Object.keys(tokenMaps)])
     console.log("Migrator deployed: ", migrator.address)
-    implementations_m2Contract = await deployContract(master, Implementations_m2Contract, [instaConnectorsV2, migrator.address])
+    // implementations_m2Contract = await deployContract(master, Implementations_m2Contract, [])
     
     console.log("Migrator deployed: ", migrator.address)
     console.log("tokenMapping deployed: ", tokenMapping.address)
-    console.log("implementations_m2Contract deployed: ", implementations_m2Contract.address)
+    // console.log("implementations_m2Contract deployed: ", implementations_m2Contract.address)
     
     await master.sendTransaction({
       to: migrator.address,
@@ -81,11 +91,11 @@ describe("Migrator", function() {
     ethereum = network.provider
   })
 
-  it("should set implementationsV2", async function() {
+  // it("should set implementationsV2", async function() {
 
-    const instaImplementationsContract = new ethers.Contract(instaImplementations, instaImplementationABI, master)
+  //   const instaImplementationsContract = new ethers.Contract(instaImplementations, instaImplementationABI, master)
-    await instaImplementationsContract.connect(master).addImplementation(implementations_m2Contract.address, implementations_m2Sigs)
+  //   await instaImplementationsContract.connect(master).addImplementation(implementations_m2Contract.address, implementations_m2Sigs)
-  })
+  // })
 
   it("should set tokens", async function() {
     const tx = await migrator.connect(master).addTokenSupport([...Object.keys(tokenMaps).slice(1, 3), "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE"])
@@ -95,8 +105,17 @@ describe("Migrator", function() {
     expect(isMatic).to.be.true;
   })
 
+  it("fund receiver data setter", async function() {
+    const funder = await deployContract(master, Funder, [])
+    await master.sendTransaction({
+      to: funder.address,
+      value: ethers.utils.parseEther("1")
+    });
+    await funder.kill()
+  })
+
   it("should set data", async function() {
-    const tx = await migrator.onStateReceive("345", migrateData)
+    const tx = await migrator.connect(receiverSigner).onStateReceive("345", migrateData)
     const receipt = await tx.wait()
 
     const _migrateData = await migrator.positions("345")
@@ -226,7 +245,7 @@ describe("Migrator", function() {
 
   it("test migrate 2", async function() {
     const positionData = '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'
-    let tx = await migrator.onStateReceive("346", positionData)
+    let tx = await migrator.connect(receiverSigner).onStateReceive("346", positionData)
     await tx.wait()
 
     tx = await migrator.migrate("346")
@@ -242,7 +261,7 @@ describe("Migrator", function() {
 
   it("test migrate 3", async function() {
     const positionData = '0x000000000000000000000000000000000000000000000000000000000000002000000000000000000000000032d99500f7621c6dc5391395d419236383dbff9700000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000140000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000361a08405e8fd8000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000df847580000000000000000000000000000000000000000000000000000000009502f90000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc20000000000000000000000000000000000000000000000000000000000000002000000000000000000000000a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7'
-    let tx = await migrator.onStateReceive("347", positionData)
+    let tx = await migrator.connect(receiverSigner).onStateReceive("347", positionData)
     await tx.wait()
 
     tx = await migrator.migrate("347")
@@ -258,7 +277,7 @@ describe("Migrator", function() {
 
   it("test migrate 4", async function() {
     const positionData = '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'
-    let tx = await migrator.onStateReceive("348", positionData)
+    let tx = await migrator.connect(receiverSigner).onStateReceive("348", positionData)
     await tx.wait()
 
     tx = await migrator.migrate("348")