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Fixed conflicts

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This commit is contained in:
David Racero 2020-11-05 09:20:50 +01:00
commit 8ab3bce12e
27 changed files with 1506 additions and 77 deletions
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7
config/commons.ts
View File

@ -290,4 +290,11 @@ export const CommonsConfig: ICommonConfiguration = {
[eEthereumNetwork.ropsten]: '',
[eEthereumNetwork.main]: '',
},
WETH: {
[eEthereumNetwork.coverage]: '', // deployed in local evm
[eEthereumNetwork.buidlerevm]: '', // deployed in local evm
[eEthereumNetwork.kovan]: '0xd0a1e359811322d97991e03f863a0c30c2cf029c',
[eEthereumNetwork.ropsten]: '0xc778417e063141139fce010982780140aa0cd5ab',
[eEthereumNetwork.main]: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
},
};

29
contracts/lendingpool/LendingPool.sol
View File

@ -107,6 +107,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
if (isFirstDeposit) {
_usersConfig[onBehalfOf].setUsingAsCollateral(reserve.id, true);
emit ReserveUsedAsCollateralEnabled(asset, onBehalfOf);
}
//transfer to the aToken contract
@ -157,6 +158,7 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
if (amountToWithdraw == userBalance) {
_usersConfig[msg.sender].setUsingAsCollateral(reserve.id, false);
emit ReserveUsedAsCollateralDisabled(asset, msg.sender);
}
IAToken(aToken).burn(msg.sender, to, amountToWithdraw, reserve.liquidityIndex);
@ -230,15 +232,6 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
_whenNotPaused();
ReserveLogic.ReserveData storage reserve = _reserves[asset];
if (onBehalfOf != msg.sender) {
address debtToken = reserve.getDebtTokenAddress(interestRateMode);
_borrowAllowance[debtToken][onBehalfOf][msg
.sender] = _borrowAllowance[debtToken][onBehalfOf][msg.sender].sub(
amount,
Errors.LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH
);
}
_executeBorrow(
ExecuteBorrowParams(
asset,
@ -581,14 +574,6 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
vars.currentAmountPlusPremium
);
} else {
if (msg.sender != onBehalfOf) {
vars.debtToken = _reserves[vars.currentAsset].getDebtTokenAddress(modes[vars.i]);
_borrowAllowance[vars.debtToken][onBehalfOf][msg.sender] = _borrowAllowance[vars
.debtToken][onBehalfOf][msg.sender]
.sub(vars.currentAmount, Errors.LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH);
}
//if the user didn't choose to return the funds, the system checks if there
//is enough collateral and eventually open a position
_executeBorrow(
@ -793,11 +778,13 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
if (balanceFromBefore.sub(amount) == 0) {
UserConfiguration.Map storage fromConfig = _usersConfig[from];
fromConfig.setUsingAsCollateral(reserveId, false);
emit ReserveUsedAsCollateralDisabled(asset, from);
}
if (balanceToBefore == 0 && amount != 0) {
UserConfiguration.Map storage toConfig = _usersConfig[to];
toConfig.setUsingAsCollateral(reserveId, true);
emit ReserveUsedAsCollateralEnabled(asset, to);
}
}
}
@ -911,6 +898,14 @@ contract LendingPool is VersionedInitializable, ILendingPool, LendingPoolStorage
oracle
);
if (vars.onBehalfOf != msg.sender) {
address debtToken = reserve.getDebtTokenAddress(vars.interestRateMode);
_borrowAllowance[debtToken][vars.onBehalfOf][msg.sender] = _borrowAllowance[debtToken][vars
.onBehalfOf][msg.sender]
.sub(vars.amount, Errors.LP_BORROW_ALLOWANCE_NOT_ENOUGH);
}
reserve.updateState();
//caching the current stable borrow rate

2
contracts/libraries/helpers/Errors.sol
View File

@ -79,7 +79,7 @@ library Errors {
string public constant AT_INVALID_MINT_AMOUNT = '56'; //invalid amount to mint
string public constant LP_FAILED_REPAY_WITH_COLLATERAL = '57';
string public constant AT_INVALID_BURN_AMOUNT = '58'; //invalid amount to burn
string public constant LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small
string public constant LP_BORROW_ALLOWANCE_NOT_ENOUGH = '59'; // User borrows on behalf, but allowance are too small
string public constant LP_FAILED_COLLATERAL_SWAP = '60';
string public constant LP_INVALID_EQUAL_ASSETS_TO_SWAP = '61';
string public constant LP_REENTRANCY_NOT_ALLOWED = '62';

11
contracts/libraries/helpers/Helpers.sol
View File

@ -26,4 +26,15 @@ library Helpers {
DebtTokenBase(reserve.variableDebtTokenAddress).balanceOf(user)
);
}
function getUserCurrentDebtMemory(address user, ReserveLogic.ReserveData memory reserve)
internal
view
returns (uint256, uint256)
{
return (
DebtTokenBase(reserve.stableDebtTokenAddress).balanceOf(user),
DebtTokenBase(reserve.variableDebtTokenAddress).balanceOf(user)
);
}
}

168
contracts/misc/WETHGateway.sol Normal file
View File

@ -0,0 +1,168 @@
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;
pragma experimental ABIEncoderV2;
import {IWETH} from './interfaces/IWETH.sol';
import {IWETHGateway} from './interfaces/IWETHGateway.sol';
import {ILendingPool} from '../interfaces/ILendingPool.sol';
import {IAToken} from '../tokenization/interfaces/IAToken.sol';
import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';
import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
import {UserConfiguration} from '../libraries/configuration/UserConfiguration.sol';
import {Helpers} from '../libraries/helpers/Helpers.sol';
import {Ownable} from '../dependencies/openzeppelin/contracts/Ownable.sol';
import {IERC20} from '../dependencies/openzeppelin/contracts/IERC20.sol';
contract WETHGateway is IWETHGateway, Ownable {
using ReserveConfiguration for ReserveConfiguration.Map;
using UserConfiguration for UserConfiguration.Map;
IWETH internal immutable WETH;
ILendingPool internal immutable POOL;
IAToken internal immutable aWETH;
/**
* @dev Sets the WETH address and the LendingPoolAddressesProvider address. Infinite approves lending pool.
* @param weth Address of the Wrapped Ether contract
* @param pool Address of the LendingPool contract
**/
constructor(address weth, address pool) public {
ILendingPool poolInstance = ILendingPool(pool);
WETH = IWETH(weth);
POOL = poolInstance;
aWETH = IAToken(poolInstance.getReserveData(weth).aTokenAddress);
IWETH(weth).approve(pool, uint256(-1));
}
/**
* @dev deposits WETH into the reserve, using native ETH. A corresponding amount of the overlying asset (aTokens)
* is minted.
* @param onBehalfOf address of the user who will receive the aTokens representing the deposit
* @param referralCode integrators are assigned a referral code and can potentially receive rewards.
**/
function depositETH(address onBehalfOf, uint16 referralCode) external override payable {
WETH.deposit{value: msg.value}();
POOL.deposit(address(WETH), msg.value, onBehalfOf, referralCode);
}
/**
* @dev withdraws the WETH _reserves of msg.sender.
* @param amount amount of aWETH to withdraw and receive native ETH
* @param to address of the user who will receive native ETH
*/
function withdrawETH(uint256 amount, address to) external override {
uint256 userBalance = aWETH.balanceOf(msg.sender);
uint256 amountToWithdraw = amount;
// if amount is equal to uint(-1), the user wants to redeem everything
if (amount == type(uint256).max) {
amountToWithdraw = userBalance;
}
aWETH.transferFrom(msg.sender, address(this), amountToWithdraw);
POOL.withdraw(address(WETH), amountToWithdraw, address(this));
WETH.withdraw(amountToWithdraw);
_safeTransferETH(to, amountToWithdraw);
}
/**
* @dev repays a borrow on the WETH reserve, for the specified amount (or for the whole amount, if uint256(-1) is specified).
* @param amount the amount to repay, or uint256(-1) if the user wants to repay everything
* @param rateMode the rate mode to repay
* @param onBehalfOf the address for which msg.sender is repaying
*/
function repayETH(
uint256 amount,
uint256 rateMode,
address onBehalfOf
) external override payable {
(uint256 stableDebt, uint256 variableDebt) = Helpers.getUserCurrentDebtMemory(
onBehalfOf,
POOL.getReserveData(address(WETH))
);
uint256 paybackAmount = ReserveLogic.InterestRateMode(rateMode) ==
ReserveLogic.InterestRateMode.STABLE
? stableDebt
: variableDebt;
if (amount < paybackAmount) {
paybackAmount = amount;
}
require(msg.value >= paybackAmount, 'msg.value is less than repayment amount');
WETH.deposit{value: paybackAmount}();
POOL.repay(address(WETH), msg.value, rateMode, onBehalfOf);
// refund remaining dust eth
if (msg.value > paybackAmount) _safeTransferETH(msg.sender, msg.value - paybackAmount);
}
/**
* @dev transfer ETH to an address, revert if it fails.
* @param to recipient of the transfer
* @param value the amount to send
*/
function _safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'ETH_TRANSFER_FAILED');
}
/**
* @dev transfer ERC20 from the utility contract, for ERC20 recovery in case of stuck tokens due
* direct transfers to the contract address.
* @param token token to transfer
* @param to recipient of the transfer
* @param amount amount to send
*/
function emergencyTokenTransfer(
address token,
address to,
uint256 amount
) external onlyOwner {
IERC20(token).transfer(to, amount);
}
/**
* @dev transfer native Ether from the utility contract, for native Ether recovery in case of stuck Ether
* due selfdestructs or transfer ether to pre-computated contract address before deployment.
* @param to recipient of the transfer
* @param amount amount to send
*/
function emergencyEtherTransfer(address to, uint256 amount) external onlyOwner {
_safeTransferETH(to, amount);
}
/**
* @dev Get WETH address used by WETHGateway
*/
function getWETHAddress() external view returns (address) {
return address(WETH);
}
/**
* @dev Get aWETH address used by WETHGateway
*/
function getAWETHAddress() external view returns (address) {
return address(aWETH);
}
/**
* @dev Get LendingPool address used by WETHGateway
*/
function getLendingPoolAddress() external view returns (address) {
return address(POOL);
}
/**
* @dev Only WETH contract is allowed to transfer ETH here. Prevent other addresses to send Ether to this contract.
*/
receive() external payable {
require(msg.sender == address(WETH), 'Receive not allowed');
}
/**
* @dev Revert fallback calls
*/
fallback() external payable {
revert('Fallback not allowed');
}
}

0
contracts/misc/IERC20DetailedBytes.sol → contracts/misc/interfaces/IERC20DetailedBytes.sol
View File

16
contracts/misc/interfaces/IWETH.sol Normal file
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@ -0,0 +1,16 @@
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;
interface IWETH {
function deposit() external payable;
function withdraw(uint256) external;
function approve(address guy, uint256 wad) external returns (bool);
function transferFrom(
address src,
address dst,
uint256 wad
) external returns (bool);
}

14
contracts/misc/interfaces/IWETHGateway.sol Normal file
View File

@ -0,0 +1,14 @@
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;
interface IWETHGateway {
function depositETH(address onBehalfOf, uint16 referralCode) external payable;
function withdrawETH(uint256 amount, address onBehalfOf) external;
function repayETH(
uint256 amount,
uint256 rateMode,
address onBehalfOf
) external payable;
}

8
contracts/mocks/attacks/SefldestructTransfer.sol Normal file
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@ -0,0 +1,8 @@
// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;
contract SelfdestructTransfer {
function destroyAndTransfer(address payable to) external payable {
selfdestruct(to);
}
}

758
contracts/mocks/dependencies/weth/WETH9.sol Normal file
View File

@ -0,0 +1,758 @@
// Copyright (C) 2015, 2016, 2017 Dapphub
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
pragma solidity >=0.4.22 <=0.6.8;
contract WETH9 {
string public name = 'Wrapped Ether';
string public symbol = 'WETH';
uint8 public decimals = 18;
event Approval(address indexed src, address indexed guy, uint256 wad);
event Transfer(address indexed src, address indexed dst, uint256 wad);
event Deposit(address indexed dst, uint256 wad);
event Withdrawal(address indexed src, uint256 wad);
mapping(address => uint256) public balanceOf;
mapping(address => mapping(address => uint256)) public allowance;
receive() external payable {
deposit();
}
function deposit() public payable {
balanceOf[msg.sender] += msg.value;
emit Deposit(msg.sender, msg.value);
}
function withdraw(uint256 wad) public {
require(balanceOf[msg.sender] >= wad);
balanceOf[msg.sender] -= wad;
msg.sender.transfer(wad);
emit Withdrawal(msg.sender, wad);
}
function totalSupply() public view returns (uint256) {
return address(this).balance;
}
function approve(address guy, uint256 wad) public returns (bool) {
allowance[msg.sender][guy] = wad;
emit Approval(msg.sender, guy, wad);
return true;
}
function transfer(address dst, uint256 wad) public returns (bool) {
return transferFrom(msg.sender, dst, wad);
}
function transferFrom(
address src,
address dst,
uint256 wad
) public returns (bool) {
require(balanceOf[src] >= wad);
if (src != msg.sender && allowance[src][msg.sender] != uint256(-1)) {
require(allowance[src][msg.sender] >= wad);
allowance[src][msg.sender] -= wad;
}
balanceOf[src] -= wad;
balanceOf[dst] += wad;
emit Transfer(src, dst, wad);
return true;
}
}
/*
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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How to Apply These Terms to Your New Programs
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
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<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
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<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
*/

1
contracts/mocks/flashloan/MockFlashLoanReceiver.sol
View File

@ -72,7 +72,6 @@ contract MockFlashLoanReceiver is FlashLoanReceiverBase {
? _amountToApprove
: amounts[i].add(premiums[i]);
//execution does not fail - mint tokens and return them to the _destination
//note: if the reserve is eth, the mock contract must receive at least _fee ETH before calling executeOperation
token.mint(premiums[i]);

11
contracts/mocks/tokens/WETH9Mocked.sol Normal file
View File

@ -0,0 +1,11 @@
pragma solidity >=0.4.22 <=0.6.8;
import {WETH9} from '../dependencies/weth/WETH9.sol';
contract WETH9Mocked is WETH9 {
// Mint not backed by Ether: only for testing purposes
function mint(uint256 value) public returns (bool) {
balanceOf[msg.sender] += value;
emit Transfer(address(0), msg.sender, value);
}
}

81
deployed-contracts.json
View File

@ -1,7 +1,7 @@
{
"MintableERC20": {
"buidlerevm": {
"address": "0x5A0773Ff307Bf7C71a832dBB5312237fD3437f9F",
"address": "0x18b9306737eaf6E8FC8e737F488a1AE077b18053",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
@ -115,43 +115,43 @@
},
"UNI_DAI_ETH": {
"buidlerevm": {
"address": "0x53369fd4680FfE3DfF39Fc6DDa9CfbfD43daeA2E",
"address": "0xB00cC45B4a7d3e1FEE684cFc4417998A1c183e6d",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"UNI_USDC_ETH": {
"buidlerevm": {
"address": "0xB00cC45B4a7d3e1FEE684cFc4417998A1c183e6d",
"address": "0x58F132FBB86E21545A4Bace3C19f1C05d86d7A22",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"UNI_SETH_ETH": {
"buidlerevm": {
"address": "0x58F132FBB86E21545A4Bace3C19f1C05d86d7A22",
"address": "0xa4bcDF64Cdd5451b6ac3743B414124A6299B65FF",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"UNI_LINK_ETH": {
"buidlerevm": {
"address": "0xa4bcDF64Cdd5451b6ac3743B414124A6299B65FF",
"address": "0x22474D350EC2dA53D717E30b96e9a2B7628Ede5b",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"UNI_MKR_ETH": {
"buidlerevm": {
"address": "0x22474D350EC2dA53D717E30b96e9a2B7628Ede5b",
"address": "0x5A0773Ff307Bf7C71a832dBB5312237fD3437f9F",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"UNI_LEND_ETH": {
"buidlerevm": {
"address": "0x5A0773Ff307Bf7C71a832dBB5312237fD3437f9F",
"address": "0x18b9306737eaf6E8FC8e737F488a1AE077b18053",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"LendingPoolAddressesProvider": {
"buidlerevm": {
"address": "0x18b9306737eaf6E8FC8e737F488a1AE077b18053",
"address": "0xFAe0fd738dAbc8a0426F47437322b6d026A9FD95",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -161,7 +161,7 @@
},
"LendingPoolAddressesProviderRegistry": {
"buidlerevm": {
"address": "0x6082731fdAba4761277Fb31299ebC782AD3bCf24",
"address": "0x8456161947DFc1fC159A0B26c025cD2b4bba0c3e",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -171,7 +171,7 @@
},
"ReserveLogic": {
"buidlerevm": {
"address": "0x12080583C4F0211eC382d33a273E6D0f9fAb0F75",
"address": "0x33958cC3535Fc328369EAC2B2Bebd120D67C7fa1",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -181,7 +181,7 @@
},
"GenericLogic": {
"buidlerevm": {
"address": "0x5F6CaC05CDF893f029b29F44d368eAeD40e573B6",
"address": "0x2cBbbBE1B75Ad7848F0844215816F551f429c64f",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -191,7 +191,7 @@
},
"ValidationLogic": {
"buidlerevm": {
"address": "0x92cfBAB5A86631e9F1A6126b42E01A74eadA61Df",
"address": "0xbAc762e2000b6815268587b081Fd17aC25519aD5",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -201,7 +201,8 @@
},
"LendingPool": {
"buidlerevm": {
"address": "0x6e2ec941EC385E56BDea7eD8fBf78610995B6D91"
"address": "0xa43Ba00FCA75B805D17f67F9433b971E9a398690",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
"address": "0x59525b17808F0a7eFe62303ca46e596A5a602683"
@ -209,7 +210,7 @@
},
"LendingPoolConfigurator": {
"buidlerevm": {
"address": "0x846CDeeb7ce99204788615020a8cAF50c7e389f3"
"address": "0xdbaA15927b1463EdD14Cf51D082BD7703Fd1C238"
},
"kovan": {
"address": "0x0a9bc0ce44e6473a1B0e30b54b7227de6E75Fd83"
@ -217,7 +218,7 @@
},
"StableAndVariableTokensHelper": {
"buidlerevm": {
"address": "0x1750499D05Ed1674d822430FB960d5F6731fDf64",
"address": "0xE4C10Db67595aF2Cb4166c8C274e0140f7E43059",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -227,7 +228,7 @@
},
"ATokensAndRatesHelper": {
"buidlerevm": {
"address": "0xE4C10Db67595aF2Cb4166c8C274e0140f7E43059",
"address": "0x099d9fF8F818290C8b5B7Db5bFca84CEebd2714c",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -237,31 +238,31 @@
},
"PriceOracle": {
"buidlerevm": {
"address": "0x099d9fF8F818290C8b5B7Db5bFca84CEebd2714c",
"address": "0x85bdE212E66e2BAE510E44Ed59116c1eC712795b",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"MockAggregator": {
"buidlerevm": {
"address": "0xd5C35F41baD857A2D4F34D7554E78d0391BAcEDF",
"address": "0x8Dd7f10813aC8fCB83ad7ad94e941D53b002fBc7",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"ChainlinkProxyPriceProvider": {
"buidlerevm": {
"address": "0xc1cb554de746224c13c1f25478aD0f3fa9e64843",
"address": "0xfA9dbd706c674801F50169f4B5862cCe045408E6",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"LendingRateOracle": {
"buidlerevm": {
"address": "0x8Dd7f10813aC8fCB83ad7ad94e941D53b002fBc7",
"address": "0xbFAD7C67855cc0272CC5ED00dAabeFDB31E7190a",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"AaveProtocolTestHelpers": {
"buidlerevm": {
"address": "0x0bcCE4611Bb4118422549f61e344dd38d65084cb"
"address": "0x93472C0e03215F9c33DA240Eb16703C8244eAa8c"
},
"kovan": {
"address": "0xe875775D75F384944E77086Ea54bAD008ea8004A",
@ -270,7 +271,7 @@
},
"LendingPoolCollateralManager": {
"buidlerevm": {
"address": "0xE55aA921A1001f0a19241264a50063683D2e1179",
"address": "0x417fc1038b2AF553D65F4fF2839efE9f93Ec1eac",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -280,12 +281,12 @@
},
"MockFlashLoanReceiver": {
"buidlerevm": {
"address": "0xf89AA2f1397e9A0622c8Fc99aB1947E28b5EF876"
"address": "0x0459c841b02Aee8730730C737582c53B20a27288"
}
},
"WalletBalanceProvider": {
"buidlerevm": {
"address": "0x1a66D6103F8BBf9204E1618F095a80b3E4817C95",
"address": "0x2530ce07D254eA185E8e0bCC37a39e2FbA3bE548",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
},
"kovan": {
@ -311,15 +312,21 @@
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"MintableDelegationERC20": {
"WETHGateway": {
"buidlerevm": {
"address": "0x0EBCa695959e5f138Af772FAa44ce1A9C7aEd921",
"address": "0x0Cf45557d25a4e4c0F1aC65EF6c48ae67c61a0E6",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"AToken": {
"WETHMocked": {
"buidlerevm": {
"address": "0x417fc1038b2AF553D65F4fF2839efE9f93Ec1eac",
"address": "0xf784709d2317D872237C4bC22f867d1BAe2913AB",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"MintableDelegationERC20": {
"buidlerevm": {
"address": "0x7fAeC7791277Ff512c41CA903c177B2Ed952dDAc",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
@ -346,5 +353,23 @@
"address": "0x3521eF8AaB0323004A6dD8b03CE890F4Ea3A13f5",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"AToken": {
"buidlerevm": {
"address": "0x33958cC3535Fc328369EAC2B2Bebd120D67C7fa1",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"SelfdestructTransferMock": {
"buidlerevm": {
"address": "0x920d847fE49E54C19047ba8bc236C45A8068Bca7",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
},
"ENJ": {
"buidlerevm": {
"address": "0x53369fd4680FfE3DfF39Fc6DDa9CfbfD43daeA2E",
"deployer": "0xc783df8a850f42e7F7e57013759C285caa701eB6"
}
}
}

14
helpers/configuration.ts
View File

@ -15,6 +15,7 @@ import {ZERO_ADDRESS} from './constants';
import {BRE} from './misc-utils';
import {tEthereumAddress} from './types';
import {getParamPerNetwork} from './contracts-helpers';
import {deployWETHMocked} from './contracts-deployments';
export enum ConfigNames {
Commons = 'Commons',
@ -80,3 +81,16 @@ export const getATokenDomainSeparatorPerNetwork = (
network: eEthereumNetwork,
config: ICommonConfiguration
): tEthereumAddress => getParamPerNetwork<tEthereumAddress>(config.ATokenDomainSeparator, network);
export const getWethAddress = async (config: ICommonConfiguration) => {
const currentNetwork = BRE.network.name;
const wethAddress = getParamPerNetwork(config.WETH, <eEthereumNetwork>currentNetwork);
if (wethAddress) {
return wethAddress;
}
if (currentNetwork.includes('main')) {
throw new Error('WETH not set at mainnet configuration.');
}
const weth = await deployWETHMocked();
return weth.address;
};

32
helpers/contracts-deployments.ts
View File

@ -41,15 +41,20 @@ import {
MockVariableDebtTokenFactory,
PriceOracleFactory,
ReserveLogicFactory,
SelfdestructTransferFactory,
StableDebtTokenFactory,
VariableDebtTokenFactory,
WalletBalanceProviderFactory,
Weth9Factory,
Weth9MockedFactory,
WethGatewayFactory,
} from '../types';
import {withSaveAndVerify, registerContractInJsonDb, linkBytecode} from './contracts-helpers';
import {StableAndVariableTokensHelperFactory} from '../types/StableAndVariableTokensHelperFactory';
import {MockStableDebtToken} from '../types/MockStableDebtToken';
import {MockVariableDebtToken} from '../types/MockVariableDebtToken';
import {MintableDelegationErc20} from '../types/MintableDelegationErc20';
import {SelfdestructTransfer} from '../types/SelfdestructTransfer';
export const deployLendingPoolAddressesProvider = async (verify?: boolean) =>
withSaveAndVerify(
@ -418,6 +423,17 @@ export const deployATokensAndRatesHelper = async (
verify
);
export const deployWETHGateway = async (
args: [tEthereumAddress, tEthereumAddress],
verify?: boolean
) =>
withSaveAndVerify(
await new WethGatewayFactory(await getFirstSigner()).deploy(...args),
eContractid.WETHGateway,
args,
verify
);
export const deployMockStableDebtToken = async (
args: [tEthereumAddress, tEthereumAddress, string, string, tEthereumAddress],
verify?: boolean
@ -429,6 +445,14 @@ export const deployMockStableDebtToken = async (
verify
);
export const deployWETHMocked = async (verify?: boolean) =>
withSaveAndVerify(
await new Weth9MockedFactory(await getFirstSigner()).deploy(),
eContractid.WETHMocked,
[],
verify
);
export const deployMockVariableDebtToken = async (
args: [tEthereumAddress, tEthereumAddress, string, string, tEthereumAddress],
verify?: boolean
@ -450,3 +474,11 @@ export const deployMockAToken = async (
args,
verify
);
export const deploySelfdestructTransferMock = async (verify?: boolean) =>
withSaveAndVerify(
await new SelfdestructTransferFactory(await getFirstSigner()).deploy(),
eContractid.SelfdestructTransferMock,
[],
verify
);

26
helpers/contracts-getters.ts
View File

@ -16,9 +16,13 @@ import {
MockVariableDebtTokenFactory,
PriceOracleFactory,
ReserveLogicFactory,
SelfdestructTransferFactory,
StableAndVariableTokensHelperFactory,
StableDebtTokenFactory,
VariableDebtTokenFactory,
Weth9Factory,
Weth9MockedFactory,
WethGatewayFactory,
} from '../types';
import {Ierc20DetailedFactory} from '../types/Ierc20DetailedFactory';
import {MockTokenMap} from './contracts-helpers';
@ -226,6 +230,19 @@ export const getATokensAndRatesHelper = async (address?: tEthereumAddress) =>
await getFirstSigner()
);
export const getWETHGateway = async (address?: tEthereumAddress) =>
await WethGatewayFactory.connect(
address ||
(await getDb().get(`${eContractid.WETHGateway}.${BRE.network.name}`).value()).address,
await getFirstSigner()
);
export const getWETHMocked = async (address?: tEthereumAddress) =>
await Weth9MockedFactory.connect(
address || (await getDb().get(`${eContractid.WETHMocked}.${BRE.network.name}`).value()).address,
await getFirstSigner()
);
export const getMockAToken = async (address?: tEthereumAddress) =>
await MockATokenFactory.connect(
address || (await getDb().get(`${eContractid.MockAToken}.${BRE.network.name}`).value()).address,
@ -239,9 +256,18 @@ export const getMockVariableDebtToken = async (address?: tEthereumAddress) =>
.address,
await getFirstSigner()
);
export const getMockStableDebtToken = async (address?: tEthereumAddress) =>
await MockStableDebtTokenFactory.connect(
address ||
(await getDb().get(`${eContractid.MockStableDebtToken}.${BRE.network.name}`).value()).address,
await getFirstSigner()
);
export const getSelfdestructTransferMock = async (address?: tEthereumAddress) =>
await SelfdestructTransferFactory.connect(
address ||
(await getDb().get(`${eContractid.SelfdestructTransferMock}.${BRE.network.name}`).value())
.address,
await getFirstSigner()
);

7
helpers/types.ts
View File

@ -59,6 +59,10 @@ export enum eContractid {
TokenDistributor = 'TokenDistributor',
StableAndVariableTokensHelper = 'StableAndVariableTokensHelper',
ATokensAndRatesHelper = 'ATokensAndRatesHelper',
WETHGateway = 'WETHGateway',
WETH = 'WETH',
WETHMocked = 'WETHMocked',
SelfdestructTransferMock = 'SelfdestructTransferMock',
}
/*
@ -135,7 +139,7 @@ export enum ProtocolErrors {
AT_INVALID_MINT_AMOUNT = '56', //invalid amount to mint
LP_FAILED_REPAY_WITH_COLLATERAL = '57',
AT_INVALID_BURN_AMOUNT = '58', //invalid amount to burn
LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH = '59', // User borrows on behalf, but allowance are too small
LP_BORROW_ALLOWANCE_NOT_ENOUGH = '59', // User borrows on behalf, but allowance are too small
LP_FAILED_COLLATERAL_SWAP = '60',
LP_INVALID_EQUAL_ASSETS_TO_SWAP = '61',
LP_REENTRANCY_NOT_ALLOWED = '62',
@ -388,6 +392,7 @@ export interface ICommonConfiguration {
ReservesConfig: iMultiPoolsAssets<IReserveParams>;
ATokenDomainSeparator: iParamsPerNetwork<string>;
ProxyPriceProvider: iParamsPerNetwork<tEthereumAddress>;
WETH: iParamsPerNetwork<tEthereumAddress>;
}
export interface IAaveConfiguration extends ICommonConfiguration {

1
package.json
View File

@ -44,6 +44,7 @@
"test-permit": "buidler test test/__setup.spec.ts test/atoken-permit.spec.ts",
"test-stable-and-atokens": "buidler test test/__setup.spec.ts test/atoken-transfer.spec.ts test/stable-token.spec.ts",
"test-subgraph:scenarios": "buidler --network buidlerevm_docker test test/__setup.spec.ts test/subgraph-scenarios.spec.ts",
"test-weth": "buidler test test/__setup.spec.ts test/weth-gateway.spec.ts",
"dev:coverage": "buidler coverage --network coverage",
"dev:deployment": "buidler dev-deployment",
"dev:deployExample": "buidler deploy-Example",

25
tasks/dev/5_initialize.ts
View File

@ -4,8 +4,14 @@ import {
deployMockFlashLoanReceiver,
deployWalletBalancerProvider,
deployAaveProtocolTestHelpers,
deployWETHGateway,
} from '../../helpers/contracts-deployments';
import {getReservesConfigByPool} from '../../helpers/configuration';
import {
ConfigNames,
getReservesConfigByPool,
getWethAddress,
loadPoolConfig,
} from '../../helpers/configuration';
import {tEthereumAddress, AavePools, eContractid} from '../../helpers/types';
import {waitForTx, filterMapBy} from '../../helpers/misc-utils';
@ -16,22 +22,17 @@ import {
} from '../../helpers/init-helpers';
import {getAllTokenAddresses} from '../../helpers/mock-helpers';
import {ZERO_ADDRESS} from '../../helpers/constants';
import {
getAllMockedTokens,
getLendingPool,
getLendingPoolConfiguratorProxy,
getLendingPoolAddressesProvider,
} from '../../helpers/contracts-getters';
import {getAllMockedTokens, getLendingPoolAddressesProvider} from '../../helpers/contracts-getters';
import {insertContractAddressInDb} from '../../helpers/contracts-helpers';
task('dev:initialize-lending-pool', 'Initialize lending pool configuration.')
.addFlag('verify', 'Verify contracts at Etherscan')
.setAction(async ({verify}, localBRE) => {
.addParam('pool', `Pool name to retrieve configuration, supported: ${Object.values(ConfigNames)}`)
.setAction(async ({verify, pool}, localBRE) => {
await localBRE.run('set-bre');
const poolConfig = loadPoolConfig(pool);
const mockTokens = await getAllMockedTokens();
const lendingPoolProxy = await getLendingPool();
const lendingPoolConfiguratorProxy = await getLendingPoolConfiguratorProxy();
const allTokenAddresses = getAllTokenAddresses(mockTokens);
const addressesProvider = await getLendingPoolAddressesProvider();
@ -77,4 +78,8 @@ task('dev:initialize-lending-pool', 'Initialize lending pool configuration.')
await deployWalletBalancerProvider(addressesProvider.address, verify);
await insertContractAddressInDb(eContractid.AaveProtocolTestHelpers, testHelpers.address);
const lendingPoolAddress = await addressesProvider.getLendingPool();
const wethAddress = await getWethAddress(poolConfig);
await deployWETHGateway([wethAddress, lendingPoolAddress]);
});

16
tasks/full/5_initialize.ts
View File

@ -4,8 +4,9 @@ import {
deployLendingPoolCollateralManager,
deployWalletBalancerProvider,
deployAaveProtocolTestHelpers,
deployWETHGateway,
} from '../../helpers/contracts-deployments';
import {loadPoolConfig, ConfigNames} from '../../helpers/configuration';
import {loadPoolConfig, ConfigNames, getWethAddress} from '../../helpers/configuration';
import {eEthereumNetwork, ICommonConfiguration} from '../../helpers/types';
import {waitForTx} from '../../helpers/misc-utils';
import {
@ -14,11 +15,7 @@ import {
enableReservesAsCollateralByHelper,
} from '../../helpers/init-helpers';
import {exit} from 'process';
import {
getLendingPool,
getLendingPoolConfiguratorProxy,
getLendingPoolAddressesProvider,
} from '../../helpers/contracts-getters';
import {getLendingPoolAddressesProvider} from '../../helpers/contracts-getters';
import {ZERO_ADDRESS} from '../../helpers/constants';
task('full:initialize-lending-pool', 'Initialize lending pool configuration.')
@ -32,8 +29,6 @@ task('full:initialize-lending-pool', 'Initialize lending pool configuration.')
const {ReserveAssets, ReservesConfig} = poolConfig as ICommonConfiguration;
const reserveAssets = await getParamPerNetwork(ReserveAssets, network);
const lendingPoolProxy = await getLendingPool();
const lendingPoolConfiguratorProxy = await getLendingPoolConfiguratorProxy();
const addressesProvider = await getLendingPoolAddressesProvider();
@ -54,6 +49,11 @@ task('full:initialize-lending-pool', 'Initialize lending pool configuration.')
);
await deployWalletBalancerProvider(addressesProvider.address, verify);
const wethAddress = await getWethAddress(poolConfig);
const lendingPoolAddress = await addressesProvider.getLendingPool();
await deployWETHGateway([wethAddress, lendingPoolAddress]);
} catch (err) {
console.error(err);
exit(1);

2
tasks/migrations/aave.dev.ts
View File

@ -30,7 +30,7 @@ task('aave:dev', 'Deploy development enviroment')
await localBRE.run('dev:deploy-oracles', {verify, pool: POOL_NAME});
console.log('5. Initialize lending pool');
await localBRE.run('dev:initialize-lending-pool', {verify});
await localBRE.run('dev:initialize-lending-pool', {verify, pool: POOL_NAME});
console.log('\nFinished migration');
printContracts();

2
tasks/migrations/uniswap.dev.ts
View File

@ -29,7 +29,7 @@ task('uniswap:dev', 'Deploy development enviroment')
await localBRE.run('dev:deploy-oracles', {verify, pool: POOL_NAME});
console.log('5. Initialize lending pool');
await localBRE.run('dev:initialize-lending-pool', {verify});
await localBRE.run('dev:initialize-lending-pool', {verify, pool: POOL_NAME});
console.log('\nFinished migration');
});

16
test/__setup.spec.ts
View File

@ -20,6 +20,8 @@ import {
deployLendingRateOracle,
deployStableAndVariableTokensHelper,
deployATokensAndRatesHelper,
deployWETHGateway,
deployWETHMocked,
} from '../helpers/contracts-deployments';
import {Signer} from 'ethers';
import {TokenContractId, eContractid, tEthereumAddress, AavePools} from '../helpers/types';
@ -45,6 +47,7 @@ import {
getLendingPoolConfiguratorProxy,
getPairsTokenAggregator,
} from '../helpers/contracts-getters';
import {Weth9Mocked} from '../types/Weth9Mocked';
const MOCK_USD_PRICE_IN_WEI = AaveConfig.ProtocolGlobalParams.MockUsdPriceInWei;
const ALL_ASSETS_INITIAL_PRICES = AaveConfig.Mocks.AllAssetsInitialPrices;
@ -53,12 +56,17 @@ const MOCK_CHAINLINK_AGGREGATORS_PRICES = AaveConfig.Mocks.ChainlinkAggregatorPr
const LENDING_RATE_ORACLE_RATES_COMMON = AaveConfig.LendingRateOracleRatesCommon;
const deployAllMockTokens = async (deployer: Signer) => {
const tokens: {[symbol: string]: MockContract | MintableERC20} = {};
const tokens: {[symbol: string]: MockContract | MintableERC20 | Weth9Mocked} = {};
const protoConfigData = getReservesConfigByPool(AavePools.proto);
const secondaryConfigData = getReservesConfigByPool(AavePools.secondary);
for (const tokenSymbol of Object.keys(TokenContractId)) {
if (tokenSymbol === 'WETH') {
tokens[tokenSymbol] = await deployWETHMocked();
await registerContractInJsonDb(tokenSymbol.toUpperCase(), tokens[tokenSymbol]);
continue;
}
let decimals = 18;
let configData = (<any>protoConfigData)[tokenSymbol];
@ -104,8 +112,8 @@ const buildTestEnv = async (deployer: Signer, secondaryWallet: Signer) => {
await waitForTx(await addressesProvider.setLendingPoolImpl(lendingPoolImpl.address));
const address = await addressesProvider.getLendingPool();
const lendingPoolProxy = await getLendingPool(address);
const lendingPoolAddress = await addressesProvider.getLendingPool();
const lendingPoolProxy = await getLendingPool(lendingPoolAddress);
await insertContractAddressInDb(eContractid.LendingPool, lendingPoolProxy.address);
@ -249,6 +257,8 @@ const buildTestEnv = async (deployer: Signer, secondaryWallet: Signer) => {
await deployWalletBalancerProvider(addressesProvider.address);
await deployWETHGateway([mockTokens.WETH.address, lendingPoolAddress]);
console.timeEnd('setup');
};

4
test/flashloan.spec.ts
View File

@ -24,7 +24,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
LP_INVALID_FLASHLOAN_MODE,
SAFEERC20_LOWLEVEL_CALL,
LP_INVALID_FLASH_LOAN_EXECUTOR_RETURN,
LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH,
LP_BORROW_ALLOWANCE_NOT_ENOUGH,
} = ProtocolErrors;
before(async () => {
@ -443,7 +443,7 @@ makeSuite('LendingPool FlashLoan function', (testEnv: TestEnv) => {
'0x10',
'0'
)
).to.be.revertedWith(LP_BORROW_ALLOWANCE_ARE_NOT_ENOUGH);
).to.be.revertedWith(LP_BORROW_ALLOWANCE_NOT_ENOUGH);
});
it('Caller takes a WETH flashloan with mode = 1 onBehalfOf user with allowance. A loan for onBehalfOf is creatd.', async () => {

17
test/helpers/make-suite.ts
View File

@ -9,6 +9,8 @@ import {
getLendingPoolConfiguratorProxy,
getPriceOracle,
getLendingPoolAddressesProviderRegistry,
getWETHMocked,
getWETHGateway,
} from '../../helpers/contracts-getters';
import {tEthereumAddress} from '../../helpers/types';
import {LendingPool} from '../../types/LendingPool';
@ -25,8 +27,14 @@ import {PriceOracle} from '../../types/PriceOracle';
import {LendingPoolAddressesProvider} from '../../types/LendingPoolAddressesProvider';
import {LendingPoolAddressesProviderRegistry} from '../../types/LendingPoolAddressesProviderRegistry';
import {getEthersSigners} from '../../helpers/contracts-helpers';
import {Weth9} from '../../types/Weth9';
import {Weth9Mocked} from '../../types/Weth9Mocked';
import {WethGateway} from '../../types/WethGateway';
import {solidity} from 'ethereum-waffle';
chai.use(bignumberChai());
chai.use(almostEqual());
chai.use(solidity);
export interface SignerWithAddress {
signer: Signer;
@ -39,7 +47,7 @@ export interface TestEnv {
configurator: LendingPoolConfigurator;
oracle: PriceOracle;
helpersContract: AaveProtocolTestHelpers;
weth: MintableERC20;
weth: Weth9Mocked;
aWETH: AToken;
dai: MintableERC20;
aDai: AToken;
@ -47,6 +55,7 @@ export interface TestEnv {
aave: MintableERC20;
addressesProvider: LendingPoolAddressesProvider;
registry: LendingPoolAddressesProviderRegistry;
wethGateway: WethGateway;
}
let buidlerevmSnapshotId: string = '0x1';
@ -63,7 +72,7 @@ const testEnv: TestEnv = {
configurator: {} as LendingPoolConfigurator,
helpersContract: {} as AaveProtocolTestHelpers,
oracle: {} as PriceOracle,
weth: {} as MintableERC20,
weth: {} as Weth9Mocked,
aWETH: {} as AToken,
dai: {} as MintableERC20,
aDai: {} as AToken,
@ -71,6 +80,7 @@ const testEnv: TestEnv = {
aave: {} as MintableERC20,
addressesProvider: {} as LendingPoolAddressesProvider,
registry: {} as LendingPoolAddressesProviderRegistry,
wethGateway: {} as WethGateway,
} as TestEnv;
export async function initializeMakeSuite() {
@ -125,7 +135,8 @@ export async function initializeMakeSuite() {
testEnv.dai = await getMintableErc20(daiAddress);
testEnv.usdc = await getMintableErc20(usdcAddress);
testEnv.aave = await getMintableErc20(aaveAddress);
testEnv.weth = await getMintableErc20(wethAddress);
testEnv.weth = await getWETHMocked(wethAddress);
testEnv.wethGateway = await getWETHGateway();
}
export function makeSuite(name: string, tests: (testEnv: TestEnv) => void) {

5
test/liquidation-atoken.spec.ts
View File

@ -96,7 +96,10 @@ makeSuite('LendingPool liquidation - liquidator receiving aToken', (testEnv) =>
const userGlobalData = await pool.getUserAccountData(borrower.address);
expect(userGlobalData.healthFactor.toString()).to.be.bignumber.lt(oneEther, INVALID_HF);
expect(userGlobalData.healthFactor.toString()).to.be.bignumber.lt(
oneEther.toString(),
INVALID_HF
);
});
it('LIQUIDATION - Tries to liquidate a different currency than the loan principal', async () => {

310
test/weth-gateway.spec.ts Normal file
View File

@ -0,0 +1,310 @@
import {MAX_UINT_AMOUNT} from '../helpers/constants';
import {convertToCurrencyDecimals} from '../helpers/contracts-helpers';
import {makeSuite, TestEnv} from './helpers/make-suite';
import {formatEther, parseEther, parseUnits} from 'ethers/lib/utils';
import {BRE, waitForTx} from '../helpers/misc-utils';
import {BigNumber} from 'ethers';
import {getStableDebtToken, getVariableDebtToken} from '../helpers/contracts-getters';
import {WethGateway} from '../types/WethGateway';
import {use} from 'chai';
import {deploySelfdestructTransferMock} from '../helpers/contracts-deployments';
const {expect} = require('chai');
makeSuite('Use native ETH at LendingPool via WETHGateway', (testEnv: TestEnv) => {
const zero = BigNumber.from('0');
const depositSize = parseEther('5');
it('Deposit WETH', async () => {
const {users, wethGateway, aWETH, pool} = testEnv;
const user = users[1];
// Deposit with native ETH
await wethGateway.connect(user.signer).depositETH(user.address, '0', {value: depositSize});
const aTokensBalance = await aWETH.balanceOf(user.address);
expect(aTokensBalance).to.be.gt(zero);
expect(aTokensBalance).to.be.gte(depositSize);
});
it('Withdraw WETH - Partial', async () => {
const {users, wethGateway, aWETH, pool} = testEnv;
const user = users[1];
const priorEthersBalance = await user.signer.getBalance();
const aTokensBalance = await aWETH.balanceOf(user.address);
expect(aTokensBalance).to.be.gt(zero, 'User should have aTokens.');
// Partially withdraw native ETH
const partialWithdraw = await convertToCurrencyDecimals(aWETH.address, '2');
// Approve the aTokens to Gateway so Gateway can withdraw and convert to Ether
const approveTx = await aWETH
.connect(user.signer)
.approve(wethGateway.address, MAX_UINT_AMOUNT);
const {gasUsed: approveGas} = await waitForTx(approveTx);
// Partial Withdraw and send native Ether to user
const {gasUsed: withdrawGas} = await waitForTx(
await wethGateway.connect(user.signer).withdrawETH(partialWithdraw, user.address)
);
const afterPartialEtherBalance = await user.signer.getBalance();
const afterPartialATokensBalance = await aWETH.balanceOf(user.address);
const gasCosts = approveGas.add(withdrawGas).mul(approveTx.gasPrice);
expect(afterPartialEtherBalance).to.be.equal(
priorEthersBalance.add(partialWithdraw).sub(gasCosts),
'User ETHER balance should contain the partial withdraw'
);
expect(afterPartialATokensBalance).to.be.equal(
aTokensBalance.sub(partialWithdraw),
'User aWETH balance should be substracted'
);
});
it('Withdraw WETH - Full', async () => {
const {users, aWETH, wethGateway, pool} = testEnv;
const user = users[1];
const priorEthersBalance = await user.signer.getBalance();
const aTokensBalance = await aWETH.balanceOf(user.address);
expect(aTokensBalance).to.be.gt(zero, 'User should have aTokens.');
// Approve the aTokens to Gateway so Gateway can withdraw and convert to Ether
const approveTx = await aWETH
.connect(user.signer)
.approve(wethGateway.address, MAX_UINT_AMOUNT);
const {gasUsed: approveGas} = await waitForTx(approveTx);
// Full withdraw
const {gasUsed: withdrawGas} = await waitForTx(
await wethGateway.connect(user.signer).withdrawETH(MAX_UINT_AMOUNT, user.address)
);
const afterFullEtherBalance = await user.signer.getBalance();
const afterFullATokensBalance = await aWETH.balanceOf(user.address);
const gasCosts = approveGas.add(withdrawGas).mul(approveTx.gasPrice);
expect(afterFullEtherBalance).to.be.eq(
priorEthersBalance.add(aTokensBalance).sub(gasCosts),
'User ETHER balance should contain the full withdraw'
);
expect(afterFullATokensBalance).to.be.eq(0, 'User aWETH balance should be zero');
});
it('Borrow stable WETH and Full Repay with ETH', async () => {
const {users, wethGateway, aWETH, weth, pool, helpersContract} = testEnv;
const borrowSize = parseEther('1');
const repaySize = borrowSize.add(borrowSize.mul(5).div(100));
const user = users[1];
const {stableDebtTokenAddress} = await helpersContract.getReserveTokensAddresses(weth.address);
const stableDebtToken = await getStableDebtToken(stableDebtTokenAddress);
// Deposit with native ETH
await wethGateway.connect(user.signer).depositETH(user.address, '0', {value: depositSize});
const aTokensBalance = await aWETH.balanceOf(user.address);
expect(aTokensBalance).to.be.gt(zero);
expect(aTokensBalance).to.be.gte(depositSize);
// Borrow WETH with WETH as collateral
await waitForTx(
await pool.connect(user.signer).borrow(weth.address, borrowSize, '1', '0', user.address)
);
const debtBalance = await stableDebtToken.balanceOf(user.address);
expect(debtBalance).to.be.gt(zero);
// Full Repay WETH with native ETH
await waitForTx(
await wethGateway
.connect(user.signer)
.repayETH(MAX_UINT_AMOUNT, '1', user.address, {value: repaySize})
);
const debtBalanceAfterRepay = await stableDebtToken.balanceOf(user.address);
expect(debtBalanceAfterRepay).to.be.eq(zero);
});
it('Borrow variable WETH and Full Repay with ETH', async () => {
const {users, wethGateway, aWETH, weth, pool, helpersContract} = testEnv;
const borrowSize = parseEther('1');
const repaySize = borrowSize.add(borrowSize.mul(5).div(100));
const user = users[1];
const {variableDebtTokenAddress} = await helpersContract.getReserveTokensAddresses(
weth.address
);
const varDebtToken = await getVariableDebtToken(variableDebtTokenAddress);
// Deposit with native ETH
await wethGateway.connect(user.signer).depositETH(user.address, '0', {value: depositSize});
const aTokensBalance = await aWETH.balanceOf(user.address);
expect(aTokensBalance).to.be.gt(zero);
expect(aTokensBalance).to.be.gte(depositSize);
// Borrow WETH with WETH as collateral
await waitForTx(
await pool.connect(user.signer).borrow(weth.address, borrowSize, '2', '0', user.address)
);
const debtBalance = await varDebtToken.balanceOf(user.address);
expect(debtBalance).to.be.gt(zero);
// Partial Repay WETH loan with native ETH
const partialPayment = repaySize.div(2);
await waitForTx(
await wethGateway
.connect(user.signer)
.repayETH(partialPayment, '2', user.address, {value: partialPayment})
);
const debtBalanceAfterPartialRepay = await varDebtToken.balanceOf(user.address);
expect(debtBalanceAfterPartialRepay).to.be.lt(debtBalance);
// Full Repay WETH loan with native ETH
await waitForTx(
await wethGateway
.connect(user.signer)
.repayETH(MAX_UINT_AMOUNT, '2', user.address, {value: repaySize})
);
const debtBalanceAfterFullRepay = await varDebtToken.balanceOf(user.address);
expect(debtBalanceAfterFullRepay).to.be.eq(zero);
});
it('Should revert if receiver function receives Ether if not WETH', async () => {
const {users, wethGateway} = testEnv;
const user = users[0];
const amount = parseEther('1');
// Call receiver function (empty data + value)
await expect(
user.signer.sendTransaction({
to: wethGateway.address,
value: amount,
gasLimit: BRE.network.config.gas,
})
).to.be.revertedWith('Receive not allowed');
});
it('Should revert if fallback functions is called with Ether', async () => {
const {users, wethGateway} = testEnv;
const user = users[0];
const amount = parseEther('1');
const fakeABI = ['function wantToCallFallback()'];
const abiCoder = new BRE.ethers.utils.Interface(fakeABI);
const fakeMethodEncoded = abiCoder.encodeFunctionData('wantToCallFallback', []);
// Call fallback function with value
await expect(
user.signer.sendTransaction({
to: wethGateway.address,
data: fakeMethodEncoded,
value: amount,
gasLimit: BRE.network.config.gas,
})
).to.be.revertedWith('Fallback not allowed');
});
it('Should revert if fallback functions is called', async () => {
const {users, wethGateway} = testEnv;
const user = users[0];
const fakeABI = ['function wantToCallFallback()'];
const abiCoder = new BRE.ethers.utils.Interface(fakeABI);
const fakeMethodEncoded = abiCoder.encodeFunctionData('wantToCallFallback', []);
// Call fallback function without value
await expect(
user.signer.sendTransaction({
to: wethGateway.address,
data: fakeMethodEncoded,
gasLimit: BRE.network.config.gas,
})
).to.be.revertedWith('Fallback not allowed');
});
it('Getters should retrieve correct state', async () => {
const {aWETH, weth, pool, wethGateway} = testEnv;
const WETHAddress = await wethGateway.getWETHAddress();
const aWETHAddress = await wethGateway.getAWETHAddress();
const poolAddress = await wethGateway.getLendingPoolAddress();
expect(WETHAddress).to.be.equal(weth.address);
expect(aWETHAddress).to.be.equal(aWETH.address);
expect(poolAddress).to.be.equal(pool.address);
});
it('Owner can do emergency token recovery', async () => {
const {users, dai, wethGateway, deployer} = testEnv;
const user = users[0];
const amount = parseEther('1');
await dai.connect(user.signer).mint(amount);
const daiBalanceAfterMint = await dai.balanceOf(user.address);
await dai.connect(user.signer).transfer(wethGateway.address, amount);
const daiBalanceAfterBadTransfer = await dai.balanceOf(user.address);
expect(daiBalanceAfterBadTransfer).to.be.eq(
daiBalanceAfterMint.sub(amount),
'User should have lost the funds here.'
);
await wethGateway
.connect(deployer.signer)
.emergencyTokenTransfer(dai.address, user.address, amount);
const daiBalanceAfterRecovery = await dai.balanceOf(user.address);
expect(daiBalanceAfterRecovery).to.be.eq(
daiBalanceAfterMint,
'User should recover the funds due emergency token transfer'
);
});
it('Owner can do emergency native ETH recovery', async () => {
const {users, wethGateway, deployer} = testEnv;
const user = users[0];
const amount = parseEther('1');
const userBalancePriorCall = await user.signer.getBalance();
// Deploy contract with payable selfdestruct contract
const selfdestructContract = await deploySelfdestructTransferMock();
// Selfdestruct the mock, pointing to WETHGateway address
const callTx = await selfdestructContract
.connect(user.signer)
.destroyAndTransfer(wethGateway.address, {value: amount});
const {gasUsed} = await waitForTx(callTx);
const gasFees = gasUsed.mul(callTx.gasPrice);
const userBalanceAfterCall = await user.signer.getBalance();
expect(userBalanceAfterCall).to.be.eq(userBalancePriorCall.sub(amount).sub(gasFees), '');
'User should have lost the funds';
// Recover the funds from the contract and sends back to the user
await wethGateway.connect(deployer.signer).emergencyEtherTransfer(user.address, amount);
const userBalanceAfterRecovery = await user.signer.getBalance();
const wethGatewayAfterRecovery = await BRE.ethers.provider.getBalance(wethGateway.address);
expect(userBalanceAfterRecovery).to.be.eq(
userBalancePriorCall.sub(gasFees),
'User should recover the funds due emergency eth transfer.'
);
expect(wethGatewayAfterRecovery).to.be.eq('0', 'WETHGateway ether balance should be zero.');
});
});