mirror of
https://github.com/Instadapp/aave-protocol-v2.git
synced 2024-07-29 21:47:30 +00:00
1855 lines
67 KiB
TypeScript
1855 lines
67 KiB
TypeScript
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import { makeSuite, TestEnv } from './helpers/make-suite';
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import {
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convertToCurrencyDecimals,
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getContract,
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buildPermitParams,
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getSignatureFromTypedData,
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buildLiquiditySwapParams,
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} from '../../helpers/contracts-helpers';
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import { getMockUniswapRouter } from '../../helpers/contracts-getters';
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import { deployUniswapLiquiditySwapAdapter } from '../../helpers/contracts-deployments';
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import { MockUniswapV2Router02 } from '../../types/MockUniswapV2Router02';
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import { Zero } from '@ethersproject/constants';
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import BigNumber from 'bignumber.js';
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import { DRE, evmRevert, evmSnapshot } from '../../helpers/misc-utils';
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import { ethers } from 'ethers';
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import { eContractid } from '../../helpers/types';
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import { AToken } from '../../types/AToken';
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import { BUIDLEREVM_CHAINID } from '../../helpers/buidler-constants';
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import { MAX_UINT_AMOUNT } from '../../helpers/constants';
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const { parseEther } = ethers.utils;
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const { expect } = require('chai');
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makeSuite('Uniswap adapters', (testEnv: TestEnv) => {
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let mockUniswapRouter: MockUniswapV2Router02;
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let evmSnapshotId: string;
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before(async () => {
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mockUniswapRouter = await getMockUniswapRouter();
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});
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beforeEach(async () => {
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evmSnapshotId = await evmSnapshot();
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});
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afterEach(async () => {
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await evmRevert(evmSnapshotId);
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});
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describe('UniswapLiquiditySwapAdapter', () => {
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describe('constructor', () => {
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it('should deploy with correct parameters', async () => {
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const { addressesProvider, weth } = testEnv;
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await deployUniswapLiquiditySwapAdapter([
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addressesProvider.address,
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mockUniswapRouter.address,
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weth.address,
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]);
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});
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it('should revert if not valid addresses provider', async () => {
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const { weth } = testEnv;
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expect(
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deployUniswapLiquiditySwapAdapter([
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mockUniswapRouter.address,
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mockUniswapRouter.address,
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weth.address,
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])
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).to.be.reverted;
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});
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});
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describe('executeOperation', () => {
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beforeEach(async () => {
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const { users, weth, dai, usdc, pool, deployer } = testEnv;
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const userAddress = users[0].address;
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// Provide liquidity
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await dai.mint(parseEther('20000'));
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await dai.approve(pool.address, parseEther('20000'));
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await pool.deposit(dai.address, parseEther('20000'), deployer.address, 0);
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const usdcAmount = await convertToCurrencyDecimals(usdc.address, '10');
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await usdc.mint(usdcAmount);
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await usdc.approve(pool.address, usdcAmount);
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await pool.deposit(usdc.address, usdcAmount, deployer.address, 0);
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// Make a deposit for user
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await weth.mint(parseEther('100'));
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await weth.approve(pool.address, parseEther('100'));
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await pool.deposit(weth.address, parseEther('100'), userAddress, 0);
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});
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it('should correctly swap tokens and deposit the out tokens in the pool', async () => {
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const {
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users,
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weth,
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oracle,
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dai,
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aDai,
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aWETH,
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pool,
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uniswapLiquiditySwapAdapter,
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} = testEnv;
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const user = users[0].signer;
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const userAddress = users[0].address;
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const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
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const daiPrice = await oracle.getAssetPrice(dai.address);
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const expectedDaiAmount = await convertToCurrencyDecimals(
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dai.address,
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new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
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);
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await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmount);
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// User will swap liquidity 10 aEth to aDai
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const liquidityToSwap = parseEther('10');
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await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, liquidityToSwap);
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const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
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// Subtract the FL fee from the amount to be swapped 0,09%
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const flashloanAmount = new BigNumber(liquidityToSwap.toString()).div(1.0009).toFixed(0);
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const params = buildLiquiditySwapParams(
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[dai.address],
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[expectedDaiAmount],
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[0],
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[0],
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[0],
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[0],
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['0x0000000000000000000000000000000000000000000000000000000000000000'],
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['0x0000000000000000000000000000000000000000000000000000000000000000'],
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[false]
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);
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await expect(
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pool
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.connect(user)
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.flashLoan(
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uniswapLiquiditySwapAdapter.address,
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[weth.address],
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[flashloanAmount.toString()],
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[0],
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userAddress,
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params,
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0
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)
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)
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.to.emit(uniswapLiquiditySwapAdapter, 'Swapped')
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.withArgs(weth.address, dai.address, flashloanAmount.toString(), expectedDaiAmount);
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const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
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const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
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const adapterDaiAllowance = await dai.allowance(
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uniswapLiquiditySwapAdapter.address,
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userAddress
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);
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const userADaiBalance = await aDai.balanceOf(userAddress);
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const userAEthBalance = await aWETH.balanceOf(userAddress);
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expect(adapterWethBalance).to.be.eq(Zero);
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expect(adapterDaiBalance).to.be.eq(Zero);
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expect(adapterDaiAllowance).to.be.eq(Zero);
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expect(userADaiBalance).to.be.eq(expectedDaiAmount);
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expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
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expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(liquidityToSwap));
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});
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it('should correctly swap and deposit multiple tokens', async () => {
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const {
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users,
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weth,
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oracle,
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dai,
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aDai,
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aWETH,
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usdc,
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pool,
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uniswapLiquiditySwapAdapter,
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} = testEnv;
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const user = users[0].signer;
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const userAddress = users[0].address;
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const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
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const daiPrice = await oracle.getAssetPrice(dai.address);
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const expectedDaiAmountForEth = await convertToCurrencyDecimals(
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dai.address,
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new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
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);
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const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
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const usdcPrice = await oracle.getAssetPrice(usdc.address);
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const collateralDecimals = (await usdc.decimals()).toString();
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const principalDecimals = (await dai.decimals()).toString();
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const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
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dai.address,
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new BigNumber(amountUSDCtoSwap.toString())
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.times(
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new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
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)
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.div(
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new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
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)
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.toFixed(0)
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);
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// Make a deposit for user
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await usdc.connect(user).mint(amountUSDCtoSwap);
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await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
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await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
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const aUsdcData = await pool.getReserveData(usdc.address);
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const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
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await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
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await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
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await aWETH.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountWETHtoSwap);
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const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
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await aUsdc.connect(user).approve(uniswapLiquiditySwapAdapter.address, amountUSDCtoSwap);
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const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
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// Subtract the FL fee from the amount to be swapped 0,09%
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const wethFlashloanAmount = new BigNumber(amountWETHtoSwap.toString())
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.div(1.0009)
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.toFixed(0);
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const usdcFlashloanAmount = new BigNumber(amountUSDCtoSwap.toString())
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.div(1.0009)
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.toFixed(0);
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const params = buildLiquiditySwapParams(
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[dai.address, dai.address],
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[expectedDaiAmountForEth, expectedDaiAmountForUsdc],
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[0, 0],
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[0, 0],
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[0, 0],
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[0, 0],
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[
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'0x0000000000000000000000000000000000000000000000000000000000000000',
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'0x0000000000000000000000000000000000000000000000000000000000000000',
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],
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[
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'0x0000000000000000000000000000000000000000000000000000000000000000',
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'0x0000000000000000000000000000000000000000000000000000000000000000',
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],
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[false, false]
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);
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await pool
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.connect(user)
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.flashLoan(
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uniswapLiquiditySwapAdapter.address,
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[weth.address, usdc.address],
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[wethFlashloanAmount.toString(), usdcFlashloanAmount.toString()],
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[0, 0],
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userAddress,
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params,
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0
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);
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const adapterWethBalance = await weth.balanceOf(uniswapLiquiditySwapAdapter.address);
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const adapterDaiBalance = await dai.balanceOf(uniswapLiquiditySwapAdapter.address);
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const adapterDaiAllowance = await dai.allowance(
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uniswapLiquiditySwapAdapter.address,
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userAddress
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);
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const userADaiBalance = await aDai.balanceOf(userAddress);
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const userAEthBalance = await aWETH.balanceOf(userAddress);
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const userAUsdcBalance = await aUsdc.balanceOf(userAddress);
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expect(adapterWethBalance).to.be.eq(Zero);
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expect(adapterDaiBalance).to.be.eq(Zero);
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expect(adapterDaiAllowance).to.be.eq(Zero);
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expect(userADaiBalance).to.be.eq(expectedDaiAmountForEth.add(expectedDaiAmountForUsdc));
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expect(userAEthBalance).to.be.lt(userAEthBalanceBefore);
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expect(userAEthBalance).to.be.gte(userAEthBalanceBefore.sub(amountWETHtoSwap));
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expect(userAUsdcBalance).to.be.lt(userAUsdcBalanceBefore);
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expect(userAUsdcBalance).to.be.gte(userAUsdcBalanceBefore.sub(amountUSDCtoSwap));
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});
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it('should correctly swap and deposit multiple tokens using permit', async () => {
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const {
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users,
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weth,
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oracle,
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dai,
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aDai,
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aWETH,
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usdc,
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pool,
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uniswapLiquiditySwapAdapter,
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} = testEnv;
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const user = users[0].signer;
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const userAddress = users[0].address;
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const chainId = DRE.network.config.chainId || BUIDLEREVM_CHAINID;
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const deadline = MAX_UINT_AMOUNT;
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const ownerPrivateKey = require('../../test-wallets.js').accounts[1].secretKey;
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if (!ownerPrivateKey) {
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throw new Error('INVALID_OWNER_PK');
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}
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const amountWETHtoSwap = await convertToCurrencyDecimals(weth.address, '10');
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|
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const daiPrice = await oracle.getAssetPrice(dai.address);
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const expectedDaiAmountForEth = await convertToCurrencyDecimals(
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dai.address,
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|
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new BigNumber(amountWETHtoSwap.toString()).div(daiPrice.toString()).toFixed(0)
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);
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|
|
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const amountUSDCtoSwap = await convertToCurrencyDecimals(usdc.address, '10');
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const usdcPrice = await oracle.getAssetPrice(usdc.address);
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|
|
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const collateralDecimals = (await usdc.decimals()).toString();
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const principalDecimals = (await dai.decimals()).toString();
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|
|
|
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const expectedDaiAmountForUsdc = await convertToCurrencyDecimals(
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dai.address,
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new BigNumber(amountUSDCtoSwap.toString())
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.times(
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new BigNumber(usdcPrice.toString()).times(new BigNumber(10).pow(principalDecimals))
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)
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.div(
|
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|
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new BigNumber(daiPrice.toString()).times(new BigNumber(10).pow(collateralDecimals))
|
||
|
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)
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||
|
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.toFixed(0)
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||
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);
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||
|
|
|
||
|
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// Make a deposit for user
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||
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await usdc.connect(user).mint(amountUSDCtoSwap);
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||
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await usdc.connect(user).approve(pool.address, amountUSDCtoSwap);
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await pool.connect(user).deposit(usdc.address, amountUSDCtoSwap, userAddress, 0);
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||
|
|
|
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const aUsdcData = await pool.getReserveData(usdc.address);
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||
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const aUsdc = await getContract<AToken>(eContractid.AToken, aUsdcData.aTokenAddress);
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||
|
|
|
||
|
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await mockUniswapRouter.setAmountToReturn(weth.address, expectedDaiAmountForEth);
|
||
|
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await mockUniswapRouter.setAmountToReturn(usdc.address, expectedDaiAmountForUsdc);
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||
|
|
|
||
|
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const userAEthBalanceBefore = await aWETH.balanceOf(userAddress);
|
||
|
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const userAUsdcBalanceBefore = await aUsdc.balanceOf(userAddress);
|
||
|
|
|
||
|
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const wethFlashloanAmount = new BigNumber(amountWETHtoSwap.toString())
|
||
|
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.div(1.0009)
|
||
|
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.toFixed(0);
|
||
|
|
|
||
|
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const usdcFlashloanAmount = new BigNumber(amountUSDCtoSwap.toString())
|
||
|
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.div(1.0009)
|
||
|
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.toFixed(0);
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||
|
|
|
||
|
|
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],
|
||
|
|
[false, false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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',
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
await expect(
|
||
|
|
pool
|
||
|
|
.connect(user)
|
||
|
|
.flashLoan(
|
||
|
|
uniswapLiquiditySwapAdapter.address,
|
||
|
|
[weth.address],
|
||
|
|
[flashloanAmount.toString()],
|
||
|
|
[0],
|
||
|
|
userAddress,
|
||
|
|
params8,
|
||
|
|
0
|
||
|
|
)
|
||
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
||
|
|
|
||
|
|
const params9 = buildLiquiditySwapParams(
|
||
|
|
[dai.address],
|
||
|
|
[expectedDaiAmount],
|
||
|
|
[0],
|
||
|
|
[0],
|
||
|
|
[0],
|
||
|
|
[0],
|
||
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
||
|
|
['0x0000000000000000000000000000000000000000000000000000000000000000'],
|
||
|
|
[false, false]
|
||
|
|
);
|
||
|
|
|
||
|
|
await expect(
|
||
|
|
pool
|
||
|
|
.connect(user)
|
||
|
|
.flashLoan(
|
||
|
|
uniswapLiquiditySwapAdapter.address,
|
||
|
|
[weth.address],
|
||
|
|
[flashloanAmount.toString()],
|
||
|
|
[0],
|
||
|
|
userAddress,
|
||
|
|
params9,
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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'],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
// 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],
|
||
|
|
[false]
|
||
|
|
);
|
||
|
|
|
||
|
|
// 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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
)
|
||
|
|
.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,
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
)
|
||
|
|
.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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).to.be.revertedWith('INCONSISTENT_PARAMS');
|
||
|
|
|
||
|
|
await expect(
|
||
|
|
uniswapLiquiditySwapAdapter
|
||
|
|
.connect(user)
|
||
|
|
.swapAndDeposit(
|
||
|
|
[weth.address],
|
||
|
|
[dai.address],
|
||
|
|
[amountWETHtoSwap],
|
||
|
|
[expectedDaiAmount],
|
||
|
|
[],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
).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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false, false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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,
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false, false]
|
||
|
|
);
|
||
|
|
|
||
|
|
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',
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
)
|
||
|
|
.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,
|
||
|
|
},
|
||
|
|
],
|
||
|
|
[false]
|
||
|
|
)
|
||
|
|
)
|
||
|
|
.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);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|
||
|
|
});
|