mirror of
https://github.com/Instadapp/aave-protocol-v2.git
synced 2024-07-29 21:47:30 +00:00
2687 lines
99 KiB
TypeScript
2687 lines
99 KiB
TypeScript
import {makeSuite, TestEnv} from './helpers/make-suite';
|
|
import {
|
|
convertToCurrencyDecimals,
|
|
getContract,
|
|
buildPermitParams,
|
|
getSignatureFromTypedData,
|
|
buildLiquiditySwapParams,
|
|
buildRepayAdapterParams,
|
|
} from '../helpers/contracts-helpers';
|
|
import {getMockUniswapRouter} from '../helpers/contracts-getters';
|
|
import {
|
|
deployUniswapLiquiditySwapAdapter,
|
|
deployUniswapRepayAdapter,
|
|
} from '../helpers/contracts-deployments';
|
|
import {MockUniswapV2Router02} from '../types/MockUniswapV2Router02';
|
|
import {Zero} from '@ethersproject/constants';
|
|
import BigNumber from 'bignumber.js';
|
|
import {DRE, evmRevert, evmSnapshot} from '../helpers/misc-utils';
|
|
import {ethers} from 'ethers';
|
|
import {eContractid} from '../helpers/types';
|
|
import {AToken} from '../types/AToken';
|
|
import {StableDebtToken} from '../types/StableDebtToken';
|
|
import {BUIDLEREVM_CHAINID} from '../helpers/buidler-constants';
|
|
import {MAX_UINT_AMOUNT, USD_ADDRESS} from '../helpers/constants';
|
|
const {parseEther} = ethers.utils;
|
|
|
|
const {expect} = require('chai');
|
|
|
|
makeSuite('Uniswap adapters', (testEnv: TestEnv) => {
|
|
let mockUniswapRouter: MockUniswapV2Router02;
|
|
let evmSnapshotId: string;
|
|
|
|
before(async () => {
|
|
mockUniswapRouter = await getMockUniswapRouter();
|
|
});
|
|
|
|
beforeEach(async () => {
|
|
evmSnapshotId = await evmSnapshot();
|
|
});
|
|
|
|
afterEach(async () => {
|
|
await evmRevert(evmSnapshotId);
|
|
});
|
|
|
|
describe('BaseUniswapAdapter', () => {
|
|
describe('getAmountsOut', () => {
|
|
it('should return the estimated amountOut and prices for the asset swap', async () => {
|
|
const {weth, dai, uniswapLiquiditySwapAdapter, oracle} = testEnv;
|
|
|
|
const amountIn = parseEther('1');
|
|
const flashloanPremium = amountIn.mul(9).div(10000);
|
|
const amountToSwap = amountIn.sub(flashloanPremium);
|
|
|
|
const wethPrice = await oracle.getAssetPrice(weth.address);
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const usdPrice = await oracle.getAssetPrice(USD_ADDRESS);
|
|
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountToSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const outPerInPrice = amountToSwap
|
|
.mul(parseEther('1'))
|
|
.mul(parseEther('1'))
|
|
.div(expectedDaiAmount.mul(parseEther('1')));
|
|
const ethUsdValue = amountIn
|
|
.mul(wethPrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
const daiUsdValue = expectedDaiAmount
|
|
.mul(daiPrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
await mockUniswapRouter.setAmountOut(
|
|
amountToSwap,
|
|
weth.address,
|
|
dai.address,
|
|
expectedDaiAmount
|
|
);
|
|
|
|
const result = await uniswapLiquiditySwapAdapter.getAmountsOut(
|
|
amountIn,
|
|
weth.address,
|
|
dai.address
|
|
);
|
|
|
|
expect(result['0']).to.be.eq(expectedDaiAmount);
|
|
expect(result['1']).to.be.eq(outPerInPrice);
|
|
expect(result['2']).to.be.eq(ethUsdValue);
|
|
expect(result['3']).to.be.eq(daiUsdValue);
|
|
});
|
|
it('should work correctly with different decimals', async () => {
|
|
const {aave, usdc, uniswapLiquiditySwapAdapter, oracle} = testEnv;
|
|
|
|
const amountIn = parseEther('10');
|
|
const flashloanPremium = amountIn.mul(9).div(10000);
|
|
const amountToSwap = amountIn.sub(flashloanPremium);
|
|
|
|
const aavePrice = await oracle.getAssetPrice(aave.address);
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
const usdPrice = await oracle.getAssetPrice(USD_ADDRESS);
|
|
|
|
const expectedUSDCAmount = await convertToCurrencyDecimals(
|
|
usdc.address,
|
|
new BigNumber(amountToSwap.toString()).div(usdcPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const outPerInPrice = amountToSwap
|
|
.mul(parseEther('1'))
|
|
.mul('1000000') // usdc 6 decimals
|
|
.div(expectedUSDCAmount.mul(parseEther('1')));
|
|
|
|
const aaveUsdValue = amountIn
|
|
.mul(aavePrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
const usdcUsdValue = expectedUSDCAmount
|
|
.mul(usdcPrice)
|
|
.div('1000000') // usdc 6 decimals
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
await mockUniswapRouter.setAmountOut(
|
|
amountToSwap,
|
|
aave.address,
|
|
usdc.address,
|
|
expectedUSDCAmount
|
|
);
|
|
|
|
const result = await uniswapLiquiditySwapAdapter.getAmountsOut(
|
|
amountIn,
|
|
aave.address,
|
|
usdc.address
|
|
);
|
|
|
|
expect(result['0']).to.be.eq(expectedUSDCAmount);
|
|
expect(result['1']).to.be.eq(outPerInPrice);
|
|
expect(result['2']).to.be.eq(aaveUsdValue);
|
|
expect(result['3']).to.be.eq(usdcUsdValue);
|
|
});
|
|
});
|
|
|
|
describe('getAmountsIn', () => {
|
|
it('should return the estimated required amountIn for the asset swap', async () => {
|
|
const {weth, dai, uniswapLiquiditySwapAdapter, oracle} = testEnv;
|
|
|
|
const amountIn = parseEther('1');
|
|
const flashloanPremium = amountIn.mul(9).div(10000);
|
|
const amountToSwap = amountIn.add(flashloanPremium);
|
|
|
|
const wethPrice = await oracle.getAssetPrice(weth.address);
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const usdPrice = await oracle.getAssetPrice(USD_ADDRESS);
|
|
|
|
const amountOut = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountIn.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const inPerOutPrice = amountOut
|
|
.mul(parseEther('1'))
|
|
.mul(parseEther('1'))
|
|
.div(amountToSwap.mul(parseEther('1')));
|
|
|
|
const ethUsdValue = amountToSwap
|
|
.mul(wethPrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
const daiUsdValue = amountOut
|
|
.mul(daiPrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
await mockUniswapRouter.setAmountIn(amountOut, weth.address, dai.address, amountIn);
|
|
|
|
const result = await uniswapLiquiditySwapAdapter.getAmountsIn(
|
|
amountOut,
|
|
weth.address,
|
|
dai.address
|
|
);
|
|
|
|
expect(result['0']).to.be.eq(amountToSwap);
|
|
expect(result['1']).to.be.eq(inPerOutPrice);
|
|
expect(result['2']).to.be.eq(ethUsdValue);
|
|
expect(result['3']).to.be.eq(daiUsdValue);
|
|
});
|
|
it('should work correctly with different decimals', async () => {
|
|
const {aave, usdc, uniswapLiquiditySwapAdapter, oracle} = testEnv;
|
|
|
|
const amountIn = parseEther('10');
|
|
const flashloanPremium = amountIn.mul(9).div(10000);
|
|
const amountToSwap = amountIn.add(flashloanPremium);
|
|
|
|
const aavePrice = await oracle.getAssetPrice(aave.address);
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
const usdPrice = await oracle.getAssetPrice(USD_ADDRESS);
|
|
|
|
const amountOut = await convertToCurrencyDecimals(
|
|
usdc.address,
|
|
new BigNumber(amountToSwap.toString()).div(usdcPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const inPerOutPrice = amountOut
|
|
.mul(parseEther('1'))
|
|
.mul(parseEther('1'))
|
|
.div(amountToSwap.mul('1000000')); // usdc 6 decimals
|
|
|
|
const aaveUsdValue = amountToSwap
|
|
.mul(aavePrice)
|
|
.div(parseEther('1'))
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
const usdcUsdValue = amountOut
|
|
.mul(usdcPrice)
|
|
.div('1000000') // usdc 6 decimals
|
|
.mul(usdPrice)
|
|
.div(parseEther('1'));
|
|
|
|
await mockUniswapRouter.setAmountIn(amountOut, aave.address, usdc.address, amountIn);
|
|
|
|
const result = await uniswapLiquiditySwapAdapter.getAmountsIn(
|
|
amountOut,
|
|
aave.address,
|
|
usdc.address
|
|
);
|
|
|
|
expect(result['0']).to.be.eq(amountToSwap);
|
|
expect(result['1']).to.be.eq(inPerOutPrice);
|
|
expect(result['2']).to.be.eq(aaveUsdValue);
|
|
expect(result['3']).to.be.eq(usdcUsdValue);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe.only('UniswapLiquiditySwapAdapter', () => {
|
|
describe('constructor', () => {
|
|
it('should deploy with correct parameters', async () => {
|
|
const {addressesProvider} = testEnv;
|
|
await deployUniswapLiquiditySwapAdapter([
|
|
addressesProvider.address,
|
|
mockUniswapRouter.address,
|
|
]);
|
|
});
|
|
|
|
it('should revert if not valid addresses provider', async () => {
|
|
expect(
|
|
deployUniswapLiquiditySwapAdapter([mockUniswapRouter.address, mockUniswapRouter.address])
|
|
).to.be.reverted;
|
|
});
|
|
});
|
|
|
|
describe('executeOperation', () => {
|
|
beforeEach(async () => {
|
|
const {users, weth, dai, usdc, pool, deployer} = testEnv;
|
|
const userAddress = users[0].address;
|
|
|
|
// Provide liquidity
|
|
await dai.mint(parseEther('20000'));
|
|
await dai.approve(pool.address, parseEther('20000'));
|
|
await pool.deposit(dai.address, parseEther('20000'), deployer.address, 0);
|
|
|
|
const usdcAmount = await convertToCurrencyDecimals(usdc.address, '10');
|
|
await usdc.mint(usdcAmount);
|
|
await usdc.approve(pool.address, usdcAmount);
|
|
await pool.deposit(usdc.address, usdcAmount, deployer.address, 0);
|
|
|
|
// Make a deposit for user
|
|
await weth.mint(parseEther('100'));
|
|
await weth.approve(pool.address, parseEther('100'));
|
|
await pool.deposit(weth.address, parseEther('100'), userAddress, 0);
|
|
});
|
|
|
|
it('should correctly swap tokens and deposit the out tokens in the pool', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should correctly swap and deposit multiple tokens', async () => {
|
|
const {
|
|
users,
|
|
weth,
|
|
oracle,
|
|
dai,
|
|
aDai,
|
|
aWETH,
|
|
usdc,
|
|
pool,
|
|
uniswapLiquiditySwapAdapter,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmountForEth = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
|
|
const collateralDecimals = (await usdc.decimals()).toString();
|
|
const principalDecimals = (await dai.decimals()).toString();
|
|
|
|
const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountUSDCtoSwap.toString())
|
|
.times(
|
|
new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
|
|
)
|
|
.div(
|
|
new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
|
)
|
|
.toFixed(0)
|
|
);
|
|
|
|
// Make a deposit for user
|
|
await usdc.connect(user).mint(amountUSDCtoSwap);
|
|
await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
|
|
await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
|
|
|
|
const aUsdcData = await pool.getReserveData(usdc.address);
|
|
const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
|
|
await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
|
|
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountWETHtoSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
await aUsdc.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountUSDCtoSwap);
|
|
const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const wethFlashloanAmount = new BigNumber(amountWETHtoSwap.toString())
|
|
.div(1.0009)
|
|
.toFixed(0);
|
|
const usdcFlashloanAmount = new BigNumber(amountUSDCtoSwap.toString())
|
|
.div(1.0009)
|
|
.toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address, dai.address],
|
|
[expectedDaiAmountForEth, expectedDaiAmountForUsdc],
|
|
[0, 0],
|
|
[0, 0],
|
|
[0, 0],
|
|
[0, 0],
|
|
[
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
],
|
|
[
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
]
|
|
);
|
|
|
|
await pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address, usdc.address],
|
|
[wethFlashloanAmount.toString(), usdcFlashloanAmount.toString()],
|
|
[0, 0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalance = await aUsdc.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmountForEth.add(expectedDaiAmountForUsdc));
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(amountWETHtoSwap));
|
|
expect(userAUsdcBalance).to.be.lt(userAUsdcBalanceBefore);
|
|
expect(userAUsdcBalance).to.be.gte(userAUsdcBalanceBefore.sub(amountUSDCtoSwap));
|
|
});
|
|
|
|
it('should correctly swap and deposit multiple tokens using permit', async () => {
|
|
const {
|
|
users,
|
|
weth,
|
|
oracle,
|
|
dai,
|
|
aDai,
|
|
aWETH,
|
|
usdc,
|
|
pool,
|
|
uniswapLiquiditySwapAdapter,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmountForEth = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
|
|
const collateralDecimals = (await usdc.decimals()).toString();
|
|
const principalDecimals = (await dai.decimals()).toString();
|
|
|
|
const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountUSDCtoSwap.toString())
|
|
.times(
|
|
new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
|
|
)
|
|
.div(
|
|
new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
|
)
|
|
.toFixed(0)
|
|
);
|
|
|
|
// Make a deposit for user
|
|
await usdc.connect(user).mint(amountUSDCtoSwap);
|
|
await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
|
|
await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
|
|
|
|
const aUsdcData = await pool.getReserveData(usdc.address);
|
|
const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
|
|
await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
|
|
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
|
|
|
|
const wethFlashloanAmount = new BigNumber(amountWETHtoSwap.toString())
|
|
.div(1.0009)
|
|
.toFixed(0);
|
|
|
|
const usdcFlashloanAmount = new BigNumber(amountUSDCtoSwap.toString())
|
|
.div(1.0009)
|
|
.toFixed(0);
|
|
|
|
const aWethNonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const aWethMsgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
aWethNonce,
|
|
deadline,
|
|
amountWETHtoSwap.toString()
|
|
);
|
|
const {v: aWETHv, r: aWETHr, s: aWETHs} = getSignatureFromTypedData(
|
|
ownerPrivateKey,
|
|
aWethMsgParams
|
|
);
|
|
|
|
const aUsdcNonce = (await aUsdc._nonces(userAddress)).toNumber();
|
|
const aUsdcMsgParams = buildPermitParams(
|
|
chainId,
|
|
aUsdc.address,
|
|
'1',
|
|
await aUsdc.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
aUsdcNonce,
|
|
deadline,
|
|
amountUSDCtoSwap.toString()
|
|
);
|
|
const {v: aUsdcv, r: aUsdcr, s: aUsdcs} = getSignatureFromTypedData(
|
|
ownerPrivateKey,
|
|
aUsdcMsgParams
|
|
);
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address, dai.address],
|
|
[expectedDaiAmountForEth, expectedDaiAmountForUsdc],
|
|
[0, 0],
|
|
[amountWETHtoSwap, amountUSDCtoSwap],
|
|
[deadline, deadline],
|
|
[aWETHv, aUsdcv],
|
|
[aWETHr, aUsdcr],
|
|
[aWETHs, aUsdcs]
|
|
);
|
|
|
|
await pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address, usdc.address],
|
|
[wethFlashloanAmount.toString(), usdcFlashloanAmount.toString()],
|
|
[0, 0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalance = await aUsdc.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmountForEth.add(expectedDaiAmountForUsdc));
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(amountWETHtoSwap));
|
|
expect(userAUsdcBalance).to.be.lt(userAUsdcBalanceBefore);
|
|
expect(userAUsdcBalance).to.be.gte(userAUsdcBalanceBefore.sub(amountUSDCtoSwap));
|
|
});
|
|
|
|
it('should correctly swap tokens with permit', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
const nonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const msgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
nonce,
|
|
deadline,
|
|
liquidityToSwap.toString()
|
|
);
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const {v, r, s} = getSignatureFromTypedData(ownerPrivateKey, msgParams);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[liquidityToSwap],
|
|
[deadline],
|
|
[v],
|
|
[r],
|
|
[s]
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should revert if inconsistent params', async () => {
|
|
const {users, weth, oracle, dai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params2 = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount],
|
|
[0, 0],
|
|
[0, 0],
|
|
[0, 0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params2,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params3 = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount],
|
|
[0, 0],
|
|
[0],
|
|
[0, 0],
|
|
[0, 0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params3,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params4 = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params4,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params5 = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
[
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
]
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params5,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params6 = buildLiquiditySwapParams(
|
|
[dai.address, weth.address],
|
|
[expectedDaiAmount, expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params6,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params7 = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0, 0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params7,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
const params8 = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0, 0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params8,
|
|
0
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
});
|
|
|
|
it('should revert if caller not lending pool', async () => {
|
|
const {users, weth, oracle, dai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter
|
|
.connect(user)
|
|
.executeOperation(
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params
|
|
)
|
|
).to.be.revertedWith('CALLER_MUST_BE_LENDING_POOL');
|
|
});
|
|
|
|
it('should work correctly with tokens of different decimals', async () => {
|
|
const {
|
|
users,
|
|
usdc,
|
|
oracle,
|
|
dai,
|
|
aDai,
|
|
uniswapLiquiditySwapAdapter,
|
|
pool,
|
|
deployer,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
|
|
const liquidity = await convertToCurrencyDecimals(usdc.address, '20000');
|
|
|
|
// Provide liquidity
|
|
await usdc.mint(liquidity);
|
|
await usdc.approve(pool.address, liquidity);
|
|
await pool.deposit(usdc.address, liquidity, deployer.address, 0);
|
|
|
|
// Make a deposit for user
|
|
await usdc.connect(user).mint(amountUSDCtoSwap);
|
|
await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
|
|
await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
|
|
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
|
|
// usdc 6
|
|
const collateralDecimals = (await usdc.decimals()).toString();
|
|
const principalDecimals = (await dai.decimals()).toString();
|
|
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountUSDCtoSwap.toString())
|
|
.times(
|
|
new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
|
|
)
|
|
.div(
|
|
new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
|
)
|
|
.toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToReturn(usdc.address, expectedDaiAmount);
|
|
|
|
const aUsdcData = await pool.getReserveData(usdc.address);
|
|
const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
|
|
const aUsdcBalance = await aUsdc.balanceOf(userAddress);
|
|
await aUsdc.connect(user).approve(uniswapLiquiditySwapAdapter.address, aUsdcBalance);
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(amountUSDCtoSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[usdc.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(usdc.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterUsdcBalance = await usdc.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const aDaiBalance = await aDai.balanceOf(userAddress);
|
|
|
|
expect(adapterUsdcBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(aDaiBalance).to.be.eq(expectedDaiAmount);
|
|
});
|
|
|
|
it('should revert when min amount to receive exceeds the max slippage amount', async () => {
|
|
const {users, weth, oracle, dai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
const smallExpectedDaiAmount = expectedDaiAmount.div(2);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[smallExpectedDaiAmount],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
).to.be.revertedWith('minAmountOut exceed max slippage');
|
|
});
|
|
|
|
it('should correctly swap tokens all the balance', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// Remove other balance
|
|
await aWETH.connect(user).transfer(users[1].address, parseEther('90'));
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
expect(userAEthBalanceBefore).to.be.eq(liquidityToSwap);
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[1],
|
|
[0],
|
|
[0],
|
|
[0],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000']
|
|
);
|
|
|
|
// Flashloan + premium > aToken balance. Then it will only swap the balance - premium
|
|
const flashloanFee = liquidityToSwap.mul(9).div(10000);
|
|
const swappedAmount = liquidityToSwap.sub(flashloanFee);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[liquidityToSwap.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, swappedAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.eq(Zero);
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
});
|
|
|
|
it('should correctly swap tokens all the balance using permit', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, pool, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// Remove other balance
|
|
await aWETH.connect(user).transfer(users[1].address, parseEther('90'));
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
const liquidityToSwap = parseEther('10');
|
|
expect(userAEthBalanceBefore).to.be.eq(liquidityToSwap);
|
|
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
const nonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const msgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
nonce,
|
|
deadline,
|
|
liquidityToSwap.toString()
|
|
);
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const {v, r, s} = getSignatureFromTypedData(ownerPrivateKey, msgParams);
|
|
|
|
const params = buildLiquiditySwapParams(
|
|
[dai.address],
|
|
[expectedDaiAmount],
|
|
[1],
|
|
[liquidityToSwap],
|
|
[deadline],
|
|
[v],
|
|
[r],
|
|
[s]
|
|
);
|
|
|
|
// Flashloan + premium > aToken balance. Then it will only swap the balance - premium
|
|
const flashloanFee = liquidityToSwap.mul(9).div(10000);
|
|
const swappedAmount = liquidityToSwap.sub(flashloanFee);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
[weth.address],
|
|
[liquidityToSwap.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, swappedAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.eq(Zero);
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
});
|
|
});
|
|
|
|
describe('swapAndDeposit', () => {
|
|
beforeEach(async () => {
|
|
const {users, weth, dai, pool, deployer} = testEnv;
|
|
const userAddress = users[0].address;
|
|
|
|
// Provide liquidity
|
|
await dai.mint(parseEther('20000'));
|
|
await dai.approve(pool.address, parseEther('20000'));
|
|
await pool.deposit(dai.address, parseEther('20000'), deployer.address, 0);
|
|
|
|
// Make a deposit for user
|
|
await weth.mint(parseEther('100'));
|
|
await weth.approve(pool.address, parseEther('100'));
|
|
await pool.deposit(weth.address, parseEther('100'), userAddress, 0);
|
|
});
|
|
|
|
it('should correctly swap tokens and deposit the out tokens in the pool', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, amountWETHtoSwap.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should correctly swap tokens using permit', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
const nonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const msgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
nonce,
|
|
deadline,
|
|
liquidityToSwap.toString()
|
|
);
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const {v, r, s} = getSignatureFromTypedData(ownerPrivateKey, msgParams);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: liquidityToSwap,
|
|
deadline,
|
|
v,
|
|
r,
|
|
s,
|
|
},
|
|
]
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, amountWETHtoSwap.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should revert if inconsistent params', async () => {
|
|
const {users, weth, dai, uniswapLiquiditySwapAdapter, oracle} = testEnv;
|
|
const user = users[0].signer;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address, dai.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address, weth.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap, amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter
|
|
.connect(user)
|
|
.swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount],
|
|
[]
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[expectedDaiAmount, expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
|
});
|
|
|
|
it('should revert when min amount to receive exceeds the max slippage amount', async () => {
|
|
const {users, weth, oracle, dai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
const smallExpectedDaiAmount = expectedDaiAmount.div(2);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[amountWETHtoSwap],
|
|
[smallExpectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
).to.be.revertedWith('minAmountOut exceed max slippage');
|
|
});
|
|
|
|
it('should correctly swap tokens and deposit multiple tokens', async () => {
|
|
const {
|
|
users,
|
|
weth,
|
|
usdc,
|
|
oracle,
|
|
dai,
|
|
aDai,
|
|
aWETH,
|
|
uniswapLiquiditySwapAdapter,
|
|
pool,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmountForEth = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
|
|
const collateralDecimals = (await usdc.decimals()).toString();
|
|
const principalDecimals = (await dai.decimals()).toString();
|
|
|
|
const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountUSDCtoSwap.toString())
|
|
.times(
|
|
new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
|
|
)
|
|
.div(
|
|
new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
|
)
|
|
.toFixed(0)
|
|
);
|
|
|
|
// Make a deposit for user
|
|
await usdc.connect(user).mint(amountUSDCtoSwap);
|
|
await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
|
|
await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
|
|
|
|
const aUsdcData = await pool.getReserveData(usdc.address);
|
|
const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
|
|
await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
|
|
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountWETHtoSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
await aUsdc.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountUSDCtoSwap);
|
|
const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
|
|
|
|
await uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address, usdc.address],
|
|
[dai.address, dai.address],
|
|
[amountWETHtoSwap, amountUSDCtoSwap],
|
|
[expectedDaiAmountForEth, expectedDaiAmountForUsdc],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalance = await aUsdc.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmountForEth.add(expectedDaiAmountForUsdc));
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(amountWETHtoSwap));
|
|
expect(userAUsdcBalance).to.be.lt(userAUsdcBalanceBefore);
|
|
expect(userAUsdcBalance).to.be.gte(userAUsdcBalanceBefore.sub(amountUSDCtoSwap));
|
|
});
|
|
|
|
it('should correctly swap tokens and deposit multiple tokens using permit', async () => {
|
|
const {
|
|
users,
|
|
weth,
|
|
usdc,
|
|
oracle,
|
|
dai,
|
|
aDai,
|
|
aWETH,
|
|
uniswapLiquiditySwapAdapter,
|
|
pool,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmountForEth = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
|
|
const usdcPrice = await oracle.getAssetPrice(usdc.address);
|
|
|
|
const collateralDecimals = (await usdc.decimals()).toString();
|
|
const principalDecimals = (await dai.decimals()).toString();
|
|
|
|
const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountUSDCtoSwap.toString())
|
|
.times(
|
|
new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
|
|
)
|
|
.div(
|
|
new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
|
)
|
|
.toFixed(0)
|
|
);
|
|
|
|
// Make a deposit for user
|
|
await usdc.connect(user).mint(amountUSDCtoSwap);
|
|
await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
|
|
await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
|
|
|
|
const aUsdcData = await pool.getReserveData(usdc.address);
|
|
const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
|
|
await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
|
|
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
|
|
|
|
const aWethNonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const aWethMsgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
aWethNonce,
|
|
deadline,
|
|
amountWETHtoSwap.toString()
|
|
);
|
|
const {v: aWETHv, r: aWETHr, s: aWETHs} = getSignatureFromTypedData(
|
|
ownerPrivateKey,
|
|
aWethMsgParams
|
|
);
|
|
|
|
const aUsdcNonce = (await aUsdc._nonces(userAddress)).toNumber();
|
|
const aUsdcMsgParams = buildPermitParams(
|
|
chainId,
|
|
aUsdc.address,
|
|
'1',
|
|
await aUsdc.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
aUsdcNonce,
|
|
deadline,
|
|
amountUSDCtoSwap.toString()
|
|
);
|
|
const {v: aUsdcv, r: aUsdcr, s: aUsdcs} = getSignatureFromTypedData(
|
|
ownerPrivateKey,
|
|
aUsdcMsgParams
|
|
);
|
|
|
|
await uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address, usdc.address],
|
|
[dai.address, dai.address],
|
|
[amountWETHtoSwap, amountUSDCtoSwap],
|
|
[expectedDaiAmountForEth, expectedDaiAmountForUsdc],
|
|
[
|
|
{
|
|
amount: amountWETHtoSwap,
|
|
deadline,
|
|
v: aWETHv,
|
|
r: aWETHr,
|
|
s: aWETHs,
|
|
},
|
|
{
|
|
amount: amountUSDCtoSwap,
|
|
deadline,
|
|
v: aUsdcv,
|
|
r: aUsdcr,
|
|
s: aUsdcs,
|
|
},
|
|
]
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const userAUsdcBalance = await aUsdc.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmountForEth.add(expectedDaiAmountForUsdc));
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(amountWETHtoSwap));
|
|
expect(userAUsdcBalance).to.be.lt(userAUsdcBalanceBefore);
|
|
expect(userAUsdcBalance).to.be.gte(userAUsdcBalanceBefore.sub(amountUSDCtoSwap));
|
|
});
|
|
|
|
it('should correctly swap all the balance when using a bigger amount', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// Remove other balance
|
|
await aWETH.connect(user).transfer(users[1].address, parseEther('90'));
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
expect(userAEthBalanceBefore).to.be.eq(liquidityToSwap);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
|
|
|
|
// Only has 10 atokens, so all the balance will be swapped
|
|
const bigAmountToSwap = parseEther('100');
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[bigAmountToSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: 0,
|
|
deadline: 0,
|
|
v: 0,
|
|
r: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
s: '0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
},
|
|
]
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, amountWETHtoSwap.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.eq(Zero);
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
});
|
|
|
|
it('should correctly swap all the balance when using permit', async () => {
|
|
const {users, weth, oracle, dai, aDai, aWETH, uniswapLiquiditySwapAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
|
|
|
|
// Remove other balance
|
|
await aWETH.connect(user).transfer(users[1].address, parseEther('90'));
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// User will swap liquidity 10 aEth to aDai
|
|
const liquidityToSwap = parseEther('10');
|
|
expect(userAEthBalanceBefore).to.be.eq(liquidityToSwap);
|
|
|
|
// Only has 10 atokens, so all the balance will be swapped
|
|
const bigAmountToSwap = parseEther('100');
|
|
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
const aWethNonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const aWethMsgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapLiquiditySwapAdapter.address,
|
|
aWethNonce,
|
|
deadline,
|
|
bigAmountToSwap.toString()
|
|
);
|
|
const {v, r, s} = getSignatureFromTypedData(ownerPrivateKey, aWethMsgParams);
|
|
|
|
await expect(
|
|
uniswapLiquiditySwapAdapter.connect(user).swapAndDeposit(
|
|
[weth.address],
|
|
[dai.address],
|
|
[bigAmountToSwap],
|
|
[expectedDaiAmount],
|
|
[
|
|
{
|
|
amount: bigAmountToSwap,
|
|
deadline,
|
|
v,
|
|
r,
|
|
s,
|
|
},
|
|
]
|
|
)
|
|
)
|
|
.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, amountWETHtoSwap.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
const adapterDaiAllowance = await dai.allowance(
|
|
uniswapLiquiditySwapAdapter.address,
|
|
userAddress
|
|
);
|
|
const userADaiBalance = await aDai.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapLiquiditySwapAdapter.address);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(adapterDaiAllowance).to.be.eq(Zero);
|
|
expect(userADaiBalance).to.be.eq(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.eq(Zero);
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe.only('UniswapRepayAdapter', () => {
|
|
describe('constructor', () => {
|
|
it('should deploy with correct parameters', async () => {
|
|
const {addressesProvider} = testEnv;
|
|
await deployUniswapRepayAdapter([addressesProvider.address, mockUniswapRouter.address]);
|
|
});
|
|
|
|
it('should revert if not valid addresses provider', async () => {
|
|
expect(deployUniswapRepayAdapter([mockUniswapRouter.address, mockUniswapRouter.address])).to
|
|
.be.reverted;
|
|
});
|
|
});
|
|
|
|
describe('executeOperation', () => {
|
|
beforeEach(async () => {
|
|
const {users, weth, dai, usdc, aave, pool, deployer} = testEnv;
|
|
const userAddress = users[0].address;
|
|
|
|
// Provide liquidity
|
|
await dai.mint(parseEther('20000'));
|
|
await dai.approve(pool.address, parseEther('20000'));
|
|
await pool.deposit(dai.address, parseEther('20000'), deployer.address, 0);
|
|
|
|
const usdcLiquidity = await convertToCurrencyDecimals(usdc.address, '2000000');
|
|
await usdc.mint(usdcLiquidity);
|
|
await usdc.approve(pool.address, usdcLiquidity);
|
|
await pool.deposit(usdc.address, usdcLiquidity, deployer.address, 0);
|
|
|
|
await weth.mint(parseEther('100'));
|
|
await weth.approve(pool.address, parseEther('100'));
|
|
await pool.deposit(weth.address, parseEther('100'), deployer.address, 0);
|
|
|
|
await aave.mint(parseEther('1000000'));
|
|
await aave.approve(pool.address, parseEther('1000000'));
|
|
await pool.deposit(aave.address, parseEther('1000000'), deployer.address, 0);
|
|
|
|
// Make a deposit for user
|
|
await weth.mint(parseEther('1000'));
|
|
await weth.approve(pool.address, parseEther('1000'));
|
|
await pool.deposit(weth.address, parseEther('1000'), userAddress, 0);
|
|
|
|
await aave.mint(parseEther('1000000'));
|
|
await aave.approve(pool.address, parseEther('1000000'));
|
|
await pool.deposit(aave.address, parseEther('1000000'), userAddress, 0);
|
|
|
|
await usdc.mint(usdcLiquidity);
|
|
await usdc.approve(pool.address, usdcLiquidity);
|
|
await pool.deposit(usdc.address, usdcLiquidity, userAddress, 0);
|
|
});
|
|
|
|
it('should correctly swap tokens and repay debt', async () => {
|
|
const {
|
|
users,
|
|
pool,
|
|
weth,
|
|
aWETH,
|
|
oracle,
|
|
dai,
|
|
uniswapRepayAdapter,
|
|
helpersContract,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
const daiStableDebtTokenAddress = (
|
|
await helpersContract.getReserveTokensAddresses(dai.address)
|
|
).stableDebtTokenAddress;
|
|
|
|
const daiStableDebtContract = await getContract<StableDebtToken>(
|
|
eContractid.StableDebtToken,
|
|
daiStableDebtTokenAddress
|
|
);
|
|
|
|
const userDaiStableDebtAmountBefore = await daiStableDebtContract.balanceOf(userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapRepayAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapRepayAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapRepayAdapter.address);
|
|
const userDaiStableDebtAmount = await daiStableDebtContract.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(userDaiStableDebtAmountBefore).to.be.gte(expectedDaiAmount);
|
|
expect(userDaiStableDebtAmount).to.be.lt(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should correctly swap tokens and repay debt with permit', async () => {
|
|
const {
|
|
users,
|
|
pool,
|
|
weth,
|
|
aWETH,
|
|
oracle,
|
|
dai,
|
|
uniswapRepayAdapter,
|
|
helpersContract,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
const daiStableDebtTokenAddress = (
|
|
await helpersContract.getReserveTokensAddresses(dai.address)
|
|
).stableDebtTokenAddress;
|
|
|
|
const daiStableDebtContract = await getContract<StableDebtToken>(
|
|
eContractid.StableDebtToken,
|
|
daiStableDebtTokenAddress
|
|
);
|
|
|
|
const userDaiStableDebtAmountBefore = await daiStableDebtContract.balanceOf(userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
|
|
const deadline = MAX_UINT_AMOUNT;
|
|
const nonce = (await aWETH._nonces(userAddress)).toNumber();
|
|
const msgParams = buildPermitParams(
|
|
chainId,
|
|
aWETH.address,
|
|
'1',
|
|
await aWETH.name(),
|
|
userAddress,
|
|
uniswapRepayAdapter.address,
|
|
nonce,
|
|
deadline,
|
|
liquidityToSwap.toString()
|
|
);
|
|
|
|
const ownerPrivateKey = require('../test-wallets.js').accounts[1].secretKey;
|
|
if (!ownerPrivateKey) {
|
|
throw new Error('INVALID_OWNER_PK');
|
|
}
|
|
|
|
const {v, r, s} = getSignatureFromTypedData(ownerPrivateKey, msgParams);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
liquidityToSwap,
|
|
deadline,
|
|
v,
|
|
r,
|
|
s
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapRepayAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapRepayAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapRepayAdapter.address);
|
|
const userDaiStableDebtAmount = await daiStableDebtContract.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(userDaiStableDebtAmountBefore).to.be.gte(expectedDaiAmount);
|
|
expect(userDaiStableDebtAmount).to.be.lt(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should revert if caller not lending pool', async () => {
|
|
const {users, pool, weth, aWETH, oracle, dai, uniswapRepayAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
uniswapRepayAdapter
|
|
.connect(user)
|
|
.executeOperation(
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params
|
|
)
|
|
).to.be.revertedWith('CALLER_MUST_BE_LENDING_POOL');
|
|
});
|
|
|
|
it('should revert if there is not debt to repay with the specified rate mode', async () => {
|
|
const {users, pool, weth, oracle, dai, uniswapRepayAdapter, aWETH} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
await weth.connect(user).mint(amountWETHtoSwap);
|
|
await weth.connect(user).transfer(uniswapRepayAdapter.address, amountWETHtoSwap);
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 2, 0, userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
).to.be.reverted;
|
|
});
|
|
|
|
it('should revert if there is not debt to repay', async () => {
|
|
const {users, pool, weth, oracle, dai, uniswapRepayAdapter, aWETH} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
await weth.connect(user).mint(amountWETHtoSwap);
|
|
await weth.connect(user).transfer(uniswapRepayAdapter.address, amountWETHtoSwap);
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
).to.be.reverted;
|
|
});
|
|
|
|
it('should revert when max amount allowed to swap is bigger than max slippage', async () => {
|
|
const {users, pool, weth, oracle, dai, aWETH, uniswapRepayAdapter} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, amountWETHtoSwap);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const bigMaxAmountToSwap = amountWETHtoSwap.mul(2);
|
|
const flashloanAmount = new BigNumber(bigMaxAmountToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
).to.be.revertedWith('maxAmountToSwap exceed max slippage');
|
|
});
|
|
|
|
it('should swap, repay debt and pull the needed ATokens leaving no leftovers', async () => {
|
|
const {
|
|
users,
|
|
pool,
|
|
weth,
|
|
aWETH,
|
|
oracle,
|
|
dai,
|
|
uniswapRepayAdapter,
|
|
helpersContract,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
const daiStableDebtTokenAddress = (
|
|
await helpersContract.getReserveTokensAddresses(dai.address)
|
|
).stableDebtTokenAddress;
|
|
|
|
const daiStableDebtContract = await getContract<StableDebtToken>(
|
|
eContractid.StableDebtToken,
|
|
daiStableDebtTokenAddress
|
|
);
|
|
|
|
const userDaiStableDebtAmountBefore = await daiStableDebtContract.balanceOf(userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
const actualWEthSwapped = new BigNumber(flashloanAmount.toString())
|
|
.multipliedBy(0.995)
|
|
.toFixed(0);
|
|
|
|
const leftOverWeth = new BigNumber(flashloanAmount).minus(actualWEthSwapped);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, actualWEthSwapped);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
expectedDaiAmount,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await expect(
|
|
pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
)
|
|
)
|
|
.to.emit(uniswapRepayAdapter, 'Swapped')
|
|
.withArgs(weth.address, dai.address, actualWEthSwapped.toString(), expectedDaiAmount);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapRepayAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapRepayAdapter.address);
|
|
const userDaiStableDebtAmount = await daiStableDebtContract.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapRepayAdapter.address);
|
|
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(userDaiStableDebtAmountBefore).to.be.gte(expectedDaiAmount);
|
|
expect(userDaiStableDebtAmount).to.be.lt(expectedDaiAmount);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gt(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
expect(userAEthBalance).to.be.gte(
|
|
userAEthBalanceBefore.sub(liquidityToSwap).add(leftOverWeth.toString())
|
|
);
|
|
});
|
|
|
|
it('should correctly swap tokens and repay the whole stable debt', async () => {
|
|
const {
|
|
users,
|
|
pool,
|
|
weth,
|
|
aWETH,
|
|
oracle,
|
|
dai,
|
|
uniswapRepayAdapter,
|
|
helpersContract,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 1, 0, userAddress);
|
|
|
|
const daiStableDebtTokenAddress = (
|
|
await helpersContract.getReserveTokensAddresses(dai.address)
|
|
).stableDebtTokenAddress;
|
|
|
|
const daiStableDebtContract = await getContract<StableDebtToken>(
|
|
eContractid.StableDebtToken,
|
|
daiStableDebtTokenAddress
|
|
);
|
|
|
|
const userDaiStableDebtAmountBefore = await daiStableDebtContract.balanceOf(userAddress);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
// Passed amount to repay is smaller than debt,
|
|
// but repayAllDebt flag is enabled so the whole debt should be paid
|
|
const amountToRepay = expectedDaiAmount.div(2);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
amountToRepay,
|
|
1,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapRepayAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapRepayAdapter.address);
|
|
const userDaiStableDebtAmount = await daiStableDebtContract.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapRepayAdapter.address);
|
|
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(userDaiStableDebtAmountBefore).to.be.gte(expectedDaiAmount);
|
|
expect(userDaiStableDebtAmount).to.be.eq(Zero);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
|
|
it('should correctly swap tokens and repay the whole variable debt', async () => {
|
|
const {
|
|
users,
|
|
pool,
|
|
weth,
|
|
aWETH,
|
|
oracle,
|
|
dai,
|
|
uniswapRepayAdapter,
|
|
helpersContract,
|
|
} = testEnv;
|
|
const user = users[0].signer;
|
|
const userAddress = users[0].address;
|
|
|
|
const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
|
|
|
|
const daiPrice = await oracle.getAssetPrice(dai.address);
|
|
const expectedDaiAmount = await convertToCurrencyDecimals(
|
|
dai.address,
|
|
new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
|
|
);
|
|
|
|
// Open user Debt
|
|
await pool.connect(user).borrow(dai.address, expectedDaiAmount, 2, 0, userAddress);
|
|
|
|
const daiStableVariableTokenAddress = (
|
|
await helpersContract.getReserveTokensAddresses(dai.address)
|
|
).variableDebtTokenAddress;
|
|
|
|
const daiVariableDebtContract = await getContract<StableDebtToken>(
|
|
eContractid.VariableDebtToken,
|
|
daiStableVariableTokenAddress
|
|
);
|
|
|
|
const userDaiVariableDebtAmountBefore = await daiVariableDebtContract.balanceOf(
|
|
userAddress
|
|
);
|
|
|
|
const liquidityToSwap = amountWETHtoSwap;
|
|
await aWETH.connect(user).approve(uniswapRepayAdapter.address, liquidityToSwap);
|
|
const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
|
|
|
// Subtract the FL fee from the amount to be swapped 0,09%
|
|
const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
|
|
|
|
await mockUniswapRouter.connect(user).setAmountToSwap(weth.address, flashloanAmount);
|
|
|
|
// Passed amount to repay is smaller than debt,
|
|
// but repayAllDebt flag is enabled so the whole debt should be paid
|
|
const amountToRepay = expectedDaiAmount.div(2);
|
|
|
|
const params = buildRepayAdapterParams(
|
|
dai.address,
|
|
amountToRepay,
|
|
2,
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000',
|
|
'0x0000000000000000000000000000000000000000000000000000000000000000'
|
|
);
|
|
|
|
await pool
|
|
.connect(user)
|
|
.flashLoan(
|
|
uniswapRepayAdapter.address,
|
|
[weth.address],
|
|
[flashloanAmount.toString()],
|
|
[0],
|
|
userAddress,
|
|
params,
|
|
0
|
|
);
|
|
|
|
const adapterWethBalance = await weth.balanceOf(uniswapRepayAdapter.address);
|
|
const adapterDaiBalance = await dai.balanceOf(uniswapRepayAdapter.address);
|
|
const userDaiVariableDebtAmount = await daiVariableDebtContract.balanceOf(userAddress);
|
|
const userAEthBalance = await aWETH.balanceOf(userAddress);
|
|
const adapterAEthBalance = await aWETH.balanceOf(uniswapRepayAdapter.address);
|
|
|
|
expect(adapterAEthBalance).to.be.eq(Zero);
|
|
expect(adapterWethBalance).to.be.eq(Zero);
|
|
expect(adapterDaiBalance).to.be.eq(Zero);
|
|
expect(userDaiVariableDebtAmountBefore).to.be.gte(expectedDaiAmount);
|
|
expect(userDaiVariableDebtAmount).to.be.eq(Zero);
|
|
expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
|
|
expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
|
|
});
|
|
});
|
|
});
|
|
});
|