mirror of
https://github.com/Instadapp/aave-protocol-v2.git
synced 2024-07-29 21:47:30 +00:00
277 lines
9.6 KiB
TypeScript
277 lines
9.6 KiB
TypeScript
import { TestEnv, makeSuite } from './helpers/make-suite';
|
|
import {
|
|
APPROVAL_AMOUNT_LENDING_POOL,
|
|
MAX_UINT_AMOUNT,
|
|
RAY,
|
|
MAX_EXPOSURE_CAP,
|
|
MOCK_CHAINLINK_AGGREGATORS_PRICES,
|
|
} from '../../helpers/constants';
|
|
import { ProtocolErrors } from '../../helpers/types';
|
|
import { MintableERC20, WETH9, WETH9Mocked } from '../../types';
|
|
import { parseEther } from '@ethersproject/units';
|
|
import { BigNumber } from '@ethersproject/bignumber';
|
|
import { strategyDAI } from '../../markets/amm/reservesConfigs';
|
|
import { strategyUSDC } from '../../markets/amm/reservesConfigs';
|
|
import { ethers } from 'ethers';
|
|
|
|
const { expect } = require('chai');
|
|
makeSuite('Exposure Cap', (testEnv: TestEnv) => {
|
|
const {
|
|
VL_COLLATERAL_EXPOSURE_CAP_EXCEEDED,
|
|
RC_INVALID_EXPOSURE_CAP,
|
|
VL_COLLATERAL_CANNOT_COVER_NEW_BORROW,
|
|
} = ProtocolErrors;
|
|
const daiPrice = Number(MOCK_CHAINLINK_AGGREGATORS_PRICES.DAI);
|
|
const usdcPrice = Number(MOCK_CHAINLINK_AGGREGATORS_PRICES.USDC);
|
|
const daiLTV = Number(strategyDAI.baseLTVAsCollateral);
|
|
const usdcLTV = Number(strategyUSDC.baseLTVAsCollateral);
|
|
|
|
const unitParse = async (token: WETH9Mocked | MintableERC20, nb: string) =>
|
|
BigNumber.from(nb).mul(BigNumber.from('10').pow((await token.decimals()) - 3));
|
|
it('Reserves should initially have exposure cap disabled (exposureCap = 0)', async () => {
|
|
const {
|
|
weth,
|
|
pool,
|
|
dai,
|
|
usdc,
|
|
deployer,
|
|
helpersContract,
|
|
users: [user1],
|
|
} = testEnv;
|
|
|
|
const mintedAmount = parseEther('1000000000');
|
|
// minting for main user
|
|
await dai.mint(mintedAmount);
|
|
await weth.mint(mintedAmount);
|
|
await usdc.mint(mintedAmount);
|
|
// minting for lp user
|
|
await dai.connect(user1.signer).mint(mintedAmount);
|
|
await weth.connect(user1.signer).mint(mintedAmount);
|
|
await usdc.connect(user1.signer).mint(mintedAmount);
|
|
|
|
await dai.approve(pool.address, MAX_UINT_AMOUNT);
|
|
await weth.approve(pool.address, MAX_UINT_AMOUNT);
|
|
await usdc.approve(pool.address, MAX_UINT_AMOUNT);
|
|
await dai.connect(user1.signer).approve(pool.address, MAX_UINT_AMOUNT);
|
|
await weth.connect(user1.signer).approve(pool.address, MAX_UINT_AMOUNT);
|
|
await usdc.connect(user1.signer).approve(pool.address, MAX_UINT_AMOUNT);
|
|
|
|
await pool.deposit(weth.address, mintedAmount, deployer.address, 0);
|
|
|
|
let usdcExposureCap = (await helpersContract.getReserveCaps(usdc.address)).exposureCap;
|
|
let daiExposureCap = (await helpersContract.getReserveCaps(dai.address)).exposureCap;
|
|
|
|
expect(usdcExposureCap).to.be.equal('0');
|
|
expect(daiExposureCap).to.be.equal('0');
|
|
});
|
|
it('Deposit 10 Dai, 10 USDC, LTV for both should increase', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
usdc,
|
|
users: [user1],
|
|
} = testEnv;
|
|
|
|
const suppliedAmount = 10;
|
|
const precisionSuppliedAmount = (suppliedAmount * 1000).toString();
|
|
|
|
// user 1 deposit more dai and usdc to be able to borrow
|
|
let { ltv } = await pool.getUserAccountData(user1.address);
|
|
expect(ltv.toString()).to.be.equal('0');
|
|
await pool
|
|
.connect(user1.signer)
|
|
.deposit(dai.address, await unitParse(dai, precisionSuppliedAmount), user1.address, 0);
|
|
|
|
ltv = (await pool.getUserAccountData(user1.address)).ltv;
|
|
expect(ltv).to.be.equal(daiLTV);
|
|
await pool
|
|
.connect(user1.signer)
|
|
.deposit(usdc.address, await unitParse(usdc, precisionSuppliedAmount), user1.address, 0);
|
|
|
|
ltv = (await pool.getUserAccountData(user1.address)).ltv;
|
|
expect(Number(ltv)).to.be.equal(
|
|
Math.floor((daiLTV * daiPrice + usdcLTV * usdcPrice) / (daiPrice + usdcPrice))
|
|
);
|
|
});
|
|
it('Sets the exposure cap for DAI to 10 Units', async () => {
|
|
const {
|
|
configurator,
|
|
dai,
|
|
helpersContract,
|
|
users: [],
|
|
} = testEnv;
|
|
|
|
const newExposureCap = 10;
|
|
|
|
await configurator.setExposureCap(dai.address, newExposureCap);
|
|
|
|
const daiExposureCap = (await helpersContract.getReserveCaps(dai.address)).exposureCap;
|
|
|
|
expect(daiExposureCap).to.be.equal(newExposureCap);
|
|
});
|
|
it('should succeed to deposit 10 dai but dai ltv drops to 0', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
users: [user1],
|
|
} = testEnv;
|
|
const suppliedAmount = 10;
|
|
const precisionSuppliedAmount = (suppliedAmount * 1000).toString();
|
|
|
|
await pool
|
|
.connect(user1.signer)
|
|
.deposit(dai.address, await unitParse(dai, precisionSuppliedAmount), user1.address, 0);
|
|
|
|
let ltv = (await pool.getUserAccountData(user1.address)).ltv;
|
|
expect(ltv).to.be.equal(Math.floor((usdcLTV * usdcPrice) / (usdcPrice + 2 * daiPrice)));
|
|
});
|
|
it('should succeed to deposit 1 dai but avg ltv decreases', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
users: [user1],
|
|
} = testEnv;
|
|
const suppliedAmount = 1;
|
|
const precisionSuppliedAmount = (suppliedAmount * 1000).toString();
|
|
let ltv = (await pool.getUserAccountData(user1.address)).ltv;
|
|
|
|
await pool
|
|
.connect(user1.signer)
|
|
.deposit(dai.address, await unitParse(dai, precisionSuppliedAmount), user1.address, 0);
|
|
|
|
expect(ltv.toNumber()).to.be.gt((await pool.getUserAccountData(user1.address)).ltv.toNumber());
|
|
});
|
|
it('should succeed to deposit 1 usdc and ltv should increase', async () => {
|
|
const {
|
|
usdc,
|
|
pool,
|
|
users: [user1],
|
|
} = testEnv;
|
|
const suppliedAmount = 1;
|
|
const precisionSuppliedAmount = (suppliedAmount * 1000).toString();
|
|
let ltv = (await pool.getUserAccountData(user1.address)).ltv;
|
|
|
|
await pool
|
|
.connect(user1.signer)
|
|
.deposit(usdc.address, await unitParse(usdc, precisionSuppliedAmount), user1.address, 0);
|
|
|
|
expect(ltv.toNumber()).to.be.lt((await pool.getUserAccountData(user1.address)).ltv.toNumber());
|
|
});
|
|
it('Should not be able to borrow 15 USD of weth', async () => {
|
|
const {
|
|
pool,
|
|
weth,
|
|
users: [user1],
|
|
} = testEnv;
|
|
const precisionBorrowedUsdAmount = 15 * 1000;
|
|
const precisionBorrowedEthAmount = ethers.BigNumber.from(precisionBorrowedUsdAmount)
|
|
.mul(daiPrice)
|
|
.div(parseEther('1.0'))
|
|
.toString();
|
|
const borrowedAmount = await unitParse(weth, precisionBorrowedEthAmount);
|
|
|
|
await expect(
|
|
pool.connect(user1.signer).borrow(weth.address, borrowedAmount, 1, 0, user1.address)
|
|
).to.be.revertedWith(VL_COLLATERAL_CANNOT_COVER_NEW_BORROW);
|
|
});
|
|
it('should be able to borrow 15 USD of weth after dai exposure cap raised to 100', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
weth,
|
|
configurator,
|
|
helpersContract,
|
|
users: [user1],
|
|
} = testEnv;
|
|
|
|
const newExposureCap = 100;
|
|
|
|
await configurator.setExposureCap(dai.address, newExposureCap);
|
|
|
|
const daiExposureCap = (await helpersContract.getReserveCaps(dai.address)).exposureCap;
|
|
|
|
expect(daiExposureCap).to.be.equal(newExposureCap);
|
|
|
|
const precisionBorrowedUsdAmount = 15 * 1000;
|
|
const precisionBorrowedEthAmount = ethers.BigNumber.from(precisionBorrowedUsdAmount)
|
|
.mul(daiPrice)
|
|
.div(parseEther('1.0'))
|
|
.toString();
|
|
const borrowedAmount = await unitParse(weth, precisionBorrowedEthAmount);
|
|
|
|
pool.connect(user1.signer).borrow(weth.address, borrowedAmount, 1, 0, user1.address);
|
|
});
|
|
it('should not be able to withdraw 5 dai, transfer 5 aDai after cap decrease of usdc back to 10 (capped)', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
usdc,
|
|
aDai,
|
|
configurator,
|
|
helpersContract,
|
|
users: [user1, , , receiver],
|
|
} = testEnv;
|
|
|
|
const newExposureCap = 10;
|
|
|
|
await configurator.setExposureCap(usdc.address, newExposureCap);
|
|
|
|
const usdcExposureCap = (await helpersContract.getReserveCaps(usdc.address)).exposureCap;
|
|
|
|
expect(usdcExposureCap).to.be.equal(newExposureCap);
|
|
|
|
const precisionWithdrawnAmount = (5 * 1000).toString();
|
|
const withdrawnAmount = await unitParse(dai, precisionWithdrawnAmount);
|
|
|
|
await expect(
|
|
pool.connect(user1.signer).withdraw(dai.address, withdrawnAmount, user1.address)
|
|
).to.be.revertedWith(VL_COLLATERAL_EXPOSURE_CAP_EXCEEDED);
|
|
await expect(
|
|
aDai.connect(user1.signer).transfer(receiver.address, withdrawnAmount)
|
|
).to.be.revertedWith(VL_COLLATERAL_EXPOSURE_CAP_EXCEEDED);
|
|
});
|
|
it('should be able to withdraw 5 usdc and transfer 5 aUsdc', async () => {
|
|
const {
|
|
usdc,
|
|
pool,
|
|
aUsdc,
|
|
users: [user1, , , receiver],
|
|
} = testEnv;
|
|
|
|
const precisionWithdrawnAmount = (5 * 1000).toString();
|
|
const withdrawnAmount = await unitParse(usdc, precisionWithdrawnAmount);
|
|
|
|
await pool.connect(user1.signer).withdraw(usdc.address, withdrawnAmount, user1.address);
|
|
await aUsdc.connect(user1.signer).transfer(receiver.address, withdrawnAmount);
|
|
});
|
|
it('should be able to withdraw 5 dai, transfer 5 aDai after repaying weth Debt', async () => {
|
|
const {
|
|
pool,
|
|
dai,
|
|
weth,
|
|
aDai,
|
|
users: [user1, , , receiver],
|
|
} = testEnv;
|
|
|
|
const precisionWithdrawnAmount = (5 * 1000).toString();
|
|
const withdrawnAmount = await unitParse(dai, precisionWithdrawnAmount);
|
|
await (
|
|
await pool.connect(user1.signer).repay(weth.address, MAX_UINT_AMOUNT, 1, user1.address)
|
|
).wait();
|
|
|
|
pool.connect(user1.signer).withdraw(dai.address, withdrawnAmount, user1.address);
|
|
aDai.connect(user1.signer).transfer(receiver.address, withdrawnAmount);
|
|
});
|
|
it('Should fail to set the exposure cap for usdc and DAI to max cap + 1 Units', async () => {
|
|
const { configurator, usdc, dai } = testEnv;
|
|
const newCap = Number(MAX_EXPOSURE_CAP) + 1;
|
|
|
|
await expect(configurator.setExposureCap(usdc.address, newCap)).to.be.revertedWith(
|
|
RC_INVALID_EXPOSURE_CAP
|
|
);
|
|
await expect(configurator.setExposureCap(dai.address, newCap)).to.be.revertedWith(
|
|
RC_INVALID_EXPOSURE_CAP
|
|
);
|
|
});
|
|
});
|