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Market.t.sol
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// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;
import "./FiRMBaseTest.sol";
import {SimpleERC20Escrow} from "src/escrows/SimpleERC20Escrow.sol";
import "test/mocks/BorrowContract.sol";
contract MarketTest is FiRMBaseTest {
bytes onlyGovUnpause = "Only governance can unpause";
bytes onlyPauseGuardianOrGov =
"Only pause guardian or governance can pause";
BorrowContract borrowContract;
function setUp() public {
initialize(
replenishmentPriceBps,
collateralFactorBps,
replenishmentIncentiveBps,
liquidationBonusBps,
callOnDepositCallback
);
vm.startPrank(chair, chair);
fed.expansion(IMarket(address(market)), 1_000_000e18);
vm.stopPrank();
borrowContract = new BorrowContract(
address(market),
payable(address(WETH))
);
}
function testDeposit() public {
gibWeth(user, wethTestAmount);
uint balanceUserBefore = WETH.balanceOf(user);
vm.startPrank(user, user);
deposit(wethTestAmount);
assertEq(
WETH.balanceOf(address(market.predictEscrow(user))),
wethTestAmount,
"Escrow balance did not increase"
);
assertEq(
WETH.balanceOf(user),
balanceUserBefore - wethTestAmount,
"User balance did not decrease"
);
}
function testDeposit2() public {
gibWeth(user, wethTestAmount);
uint balanceUserBefore = WETH.balanceOf(user);
vm.startPrank(user, user);
WETH.approve(address(market), wethTestAmount);
market.deposit(user2, wethTestAmount);
assertEq(
WETH.balanceOf(address(market.predictEscrow(user))),
0,
"User balance not 0"
);
assertEq(
WETH.balanceOf(address(market.predictEscrow(user2))),
wethTestAmount,
"User2 escrow balance did not increase "
);
assertEq(
WETH.balanceOf(user),
balanceUserBefore - wethTestAmount,
"User balance did not decrease"
);
assertEq(WETH.balanceOf(user2), 0, "User2 not 0");
}
function testBorrow() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
uint initialDolaBalance = DOLA.balanceOf(user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
assertEq(
DOLA.balanceOf(user),
initialDolaBalance + borrowAmount,
"User balance did not increase by borrowAmount"
);
}
function testBorrow_Successful_WhenBorrowingASecondTime() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
uint dbrBalBefore = dbr.balanceOf(user);
vm.prank(gov);
dbr.addMinter(address(borrowController));
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
gibDOLA(address(market), borrowAmount);
uint marketDolaBal = DOLA.balanceOf(address(market));
market.borrow(borrowAmount);
market.repay(user, market.debts(user));
assertEq(
DOLA.balanceOf(address(market)),
marketDolaBal,
"Market balance did not return"
);
vm.warp(block.timestamp + 2000);
market.borrow(borrowAmount);
assertEq(
dbrBalBefore,
dbr.balanceOf(user),
"DBR bal changed despite no time passing"
);
}
function testBorrow_BurnsCorrectAmountOfDBR_WhenTimePasses() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
uint initialDolaBalance = DOLA.balanceOf(user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
vm.warp(1_000_000);
ethFeed.changeUpdatedAt(block.timestamp);
uint dbrBal = dbr.balanceOf(user);
market.borrow(borrowAmount);
assertEq(
dbrBal,
wethTestAmount,
"DBR balance burned immediately after borrow"
);
vm.warp(1_000_001);
dbr.accrueDueTokens(user);
assertEq(
dbr.balanceOf(user),
dbrBal - borrowAmount / 365 days,
"DBR balance didn't drop by 1 second worth"
);
assertEq(
DOLA.balanceOf(user),
initialDolaBalance + borrowAmount,
"User balance did not increase by borrowAmount"
);
}
function testDepositAndBorrow() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
uint initialDolaBalance = DOLA.balanceOf(user);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
uint balanceUserBefore = WETH.balanceOf(user);
WETH.approve(address(market), wethTestAmount);
market.depositAndBorrow(wethTestAmount, borrowAmount);
assertEq(
DOLA.balanceOf(user),
initialDolaBalance + borrowAmount,
"User balance did not increase by borrowAmount"
);
assertEq(
WETH.balanceOf(address(market.predictEscrow(user))),
wethTestAmount,
"Escrow balance did not increase"
);
assertEq(
WETH.balanceOf(user),
balanceUserBefore - wethTestAmount,
"User balance did not decrease"
);
}
function testBorrowOnBehalf() public {
address userPk = vm.addr(1);
gibWeth(userPk, wethTestAmount);
gibDBR(userPk, wethTestAmount);
vm.startPrank(userPk, userPk);
uint maxBorrowAmount = getMaxBorrowAmount(wethTestAmount);
bytes32 hash = keccak256(
abi.encodePacked(
"\x19\x01",
market.DOMAIN_SEPARATOR(),
keccak256(
abi.encode(
keccak256(
"BorrowOnBehalf(address caller,address from,uint256 amount,uint256 nonce,uint256 deadline)"
),
user2,
userPk,
maxBorrowAmount,
0,
block.timestamp
)
)
)
);
(uint8 v, bytes32 r, bytes32 s) = vm.sign(1, hash);
deposit(wethTestAmount);
vm.stopPrank();
assertEq(
WETH.balanceOf(address(market.escrows(userPk))),
wethTestAmount,
"failed to deposit WETH"
);
assertEq(WETH.balanceOf(userPk), 0, "failed to deposit WETH");
vm.startPrank(user2, user2);
market.borrowOnBehalf(
userPk,
maxBorrowAmount,
block.timestamp,
v,
r,
s
);
assertEq(
DOLA.balanceOf(userPk),
0,
"borrowed DOLA went to the wrong user"
);
assertEq(
DOLA.balanceOf(user2),
maxBorrowAmount,
"failed to borrow DOLA"
);
}
function testBorrowOnBehalf_Fails_When_InvalidateNonceCalledPrior() public {
address userPk = vm.addr(1);
gibWeth(userPk, wethTestAmount);
gibDBR(userPk, wethTestAmount);
vm.startPrank(userPk);
uint maxBorrowAmount = getMaxBorrowAmount(wethTestAmount);
bytes32 hash = keccak256(
abi.encodePacked(
"\x19\x01",
market.DOMAIN_SEPARATOR(),
keccak256(
abi.encode(
keccak256(
"BorrowOnBehalf(address caller,address from,uint256 amount,uint256 nonce,uint256 deadline)"
),
user2,
userPk,
maxBorrowAmount,
0,
block.timestamp
)
)
)
);
(uint8 v, bytes32 r, bytes32 s) = vm.sign(1, hash);
deposit(wethTestAmount);
market.invalidateNonce();
vm.stopPrank();
vm.startPrank(user2);
vm.expectRevert("INVALID_SIGNER");
market.borrowOnBehalf(
userPk,
maxBorrowAmount,
block.timestamp,
v,
r,
s
);
}
function testBorrowOnBehalf_Fails_When_DeadlineHasPassed() public {
address userPk = vm.addr(1);
gibWeth(userPk, wethTestAmount);
gibDBR(userPk, wethTestAmount);
uint timestamp = block.timestamp;
vm.startPrank(userPk);
uint maxBorrowAmount = getMaxBorrowAmount(wethTestAmount);
bytes32 hash = keccak256(
abi.encodePacked(
"\x19\x01",
market.DOMAIN_SEPARATOR(),
keccak256(
abi.encode(
keccak256(
"BorrowOnBehalf(address caller,address from,uint256 amount,uint256 nonce,uint256 deadline)"
),
user2,
userPk,
maxBorrowAmount,
0,
timestamp
)
)
)
);
(uint8 v, bytes32 r, bytes32 s) = vm.sign(1, hash);
deposit(wethTestAmount);
market.invalidateNonce();
vm.stopPrank();
vm.startPrank(user2);
vm.warp(block.timestamp + 1);
vm.expectRevert("DEADLINE_EXPIRED");
market.borrowOnBehalf(userPk, maxBorrowAmount, timestamp, v, r, s);
}
function testBorrow_Fails_When_BorrowingPaused() public {
vm.startPrank(gov);
market.pauseBorrows(true);
vm.stopPrank();
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
vm.expectRevert("Borrowing is paused");
market.borrow(borrowAmount);
}
function testBorrow_Fails_When_DeniedByBorrowController() public {
vm.startPrank(gov);
market.setBorrowController(
IBorrowController(address(borrowController))
);
vm.stopPrank();
gibWeth(address(borrowContract), wethTestAmount);
gibDBR(address(borrowContract), wethTestAmount);
vm.startPrank(user, user);
borrowContract.deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
vm.expectRevert("Denied by borrow controller");
borrowContract.borrow(borrowAmount);
}
function testBorrow_Fails_When_AmountGTCreditLimit() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = convertWethToDola(wethTestAmount);
vm.expectRevert("Exceeded credit limit");
market.borrow(borrowAmount);
}
function testBorrow_Fails_When_NotEnoughDolaInMarket() public {
vm.startPrank(market.lender());
market.recall(DOLA.balanceOf(address(market)));
vm.stopPrank();
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
vm.expectRevert("SafeMath: subtraction underflow");
market.borrow(1 ether);
}
function testLiquidate_LiquidationMoreExpensiveThanFeePlusIncentive()
public
{
uint depositAmount = 1 ether;
uint maxBorrowAmount = (convertWethToDola(depositAmount) *
market.collateralFactorBps()) / 10_000;
gibWeth(user, depositAmount);
gibDBR(user, depositAmount);
vm.startPrank(chair);
fed.expansion(
IMarket(address(market)),
convertWethToDola(depositAmount) * 2
);
vm.stopPrank();
vm.startPrank(user, user);
deposit(depositAmount);
market.borrow(maxBorrowAmount);
vm.stopPrank();
vm.startPrank(gov);
uint liquidationFeeBps = 9998;
market.setLiquidationIncentiveBps(1);
market.setLiquidationFeeBps(liquidationFeeBps);
vm.stopPrank();
ethFeed.changeAnswer(oracle.getFeedPrice(address(WETH)) / 2);
vm.startPrank(user2);
uint liquidationAmount = (market.debts(user) *
market.liquidationFactorBps()) / 10_000;
gibDOLA(user2, liquidationAmount);
DOLA.approve(address(market), type(uint).max);
uint marketDolaBal = DOLA.balanceOf(address(market));
uint govWethBal = WETH.balanceOf(gov);
//Successful liquidation
market.liquidate(user, liquidationAmount);
uint expectedReward = convertDolaToWeth(liquidationAmount);
expectedReward +=
(expectedReward * market.liquidationIncentiveBps()) /
10_000;
assertEq(
expectedReward,
WETH.balanceOf(user2),
"user2 didn't receive proper liquidation reward"
);
assertEq(
DOLA.balanceOf(address(market)),
marketDolaBal + liquidationAmount,
"market didn't receive repaid DOLA"
);
assertGt(
WETH.balanceOf(gov),
govWethBal,
"Gov should receive liquidation fee"
);
}
function testLiquidate_NoLiquidationFee(
uint depositAmount,
uint liquidationAmount,
uint16 borrowMulti_
) public {
depositAmount = bound(depositAmount, 1e18, 100_000e18);
liquidationAmount = bound(liquidationAmount, 500e18, 200_000_000e18);
uint borrowMulti = bound(borrowMulti_, 0, 100);
uint maxBorrowAmount = (convertWethToDola(depositAmount) *
market.collateralFactorBps()) / 10_000;
uint borrowAmount = (maxBorrowAmount * borrowMulti) / 100;
gibWeth(user, depositAmount);
gibDBR(user, depositAmount);
vm.startPrank(chair);
fed.expansion(
IMarket(address(market)),
convertWethToDola(depositAmount)
);
vm.stopPrank();
vm.startPrank(user, user);
deposit(depositAmount);
market.borrow(borrowAmount);
vm.stopPrank();
ethFeed.changeAnswer((oracle.getFeedPrice(address(WETH)) * 9) / 10);
vm.startPrank(user2);
gibDOLA(user2, liquidationAmount);
DOLA.approve(address(market), type(uint).max);
uint marketDolaBal = DOLA.balanceOf(address(market));
uint govDolaBal = DOLA.balanceOf(gov);
uint repayAmount = (market.debts(user) *
market.liquidationFactorBps()) / 10_000;
if (market.debts(user) <= market.getCreditLimit(user)) {
vm.expectRevert("User debt is healthy");
market.liquidate(user, liquidationAmount);
} else if (repayAmount < liquidationAmount) {
vm.expectRevert("Exceeded liquidation factor");
market.liquidate(user, liquidationAmount);
} else {
//Successful liquidation
market.liquidate(user, liquidationAmount);
uint expectedReward = convertDolaToWeth(liquidationAmount);
expectedReward +=
(expectedReward * market.liquidationIncentiveBps()) /
10_000;
assertEq(
expectedReward,
WETH.balanceOf(user2),
"user2 didn't receive proper liquidation reward"
);
assertEq(
DOLA.balanceOf(address(market)),
marketDolaBal + liquidationAmount,
"market didn't receive repaid DOLA"
);
assertEq(
DOLA.balanceOf(gov),
govDolaBal,
"gov should not receive liquidation fee when it's set to 0"
);
}
}
function testLiquidate_WithMaxLiquidationFee(
uint depositAmount,
uint liquidationAmount,
uint16 borrowMulti_
) public {
depositAmount = bound(depositAmount, 1e18, 100_000e18);
liquidationAmount = bound(liquidationAmount, 500e18, 200_000_000e18);
uint borrowMulti = bound(borrowMulti_, 0, 100);
gibWeth(user, depositAmount);
gibDBR(user, depositAmount);
vm.startPrank(chair);
fed.expansion(
IMarket(address(market)),
convertWethToDola(depositAmount)
);
vm.stopPrank();
vm.startPrank(gov);
uint liquidationFeeBps = 9998;
market.setLiquidationIncentiveBps(1);
market.setLiquidationFeeBps(liquidationFeeBps);
vm.stopPrank();
vm.startPrank(user, user);
deposit(depositAmount);
uint maxBorrowAmount = (convertWethToDola(depositAmount) *
market.collateralFactorBps()) / 10_000;
uint borrowAmount = (maxBorrowAmount * borrowMulti) / 100;
market.borrow(borrowAmount);
vm.stopPrank();
ethFeed.changeAnswer((oracle.getFeedPrice(address(WETH)) * 9) / 10);
vm.startPrank(user2);
gibDOLA(user2, liquidationAmount);
DOLA.approve(address(market), type(uint).max);
uint marketDolaBal = DOLA.balanceOf(address(market));
uint govWethBal = WETH.balanceOf(gov);
uint repayAmount = (market.debts(user) *
market.liquidationFactorBps()) / 10_000;
if (market.debts(user) <= market.getCreditLimit(user)) {
vm.expectRevert("User debt is healthy");
market.liquidate(user, liquidationAmount);
} else if (repayAmount < liquidationAmount) {
vm.expectRevert("Exceeded liquidation factor");
market.liquidate(user, liquidationAmount);
} else {
//Successful liquidation
market.liquidate(user, liquidationAmount);
uint expectedReward = convertDolaToWeth(liquidationAmount);
expectedReward +=
(expectedReward * market.liquidationIncentiveBps()) /
10_000;
uint expectedLiquidationFee = (convertDolaToWeth(
liquidationAmount
) * market.liquidationFeeBps()) / 10_000;
assertEq(
expectedReward,
WETH.balanceOf(user2),
"user2 didn't receive proper liquidation reward"
);
assertEq(
DOLA.balanceOf(address(market)),
marketDolaBal + liquidationAmount,
"market didn't receive repaid DOLA"
);
assertEq(
WETH.balanceOf(gov),
govWethBal + expectedLiquidationFee,
"gov didn't receive proper liquidation fee"
);
}
}
function testLiquidate_WithLiquidationFee(
uint depositAmount,
uint liquidationAmount,
uint256 liquidationFeeBps,
uint16 borrowMulti_
) public {
depositAmount = bound(depositAmount, 1e18, 100_000e18);
liquidationAmount = bound(liquidationAmount, 500e18, 200_000_000e18);
uint borrowMulti = bound(borrowMulti_, 0, 100);
gibWeth(user, depositAmount);
gibDBR(user, depositAmount);
vm.startPrank(chair);
fed.expansion(
IMarket(address(market)),
convertWethToDola(depositAmount)
);
vm.stopPrank();
vm.startPrank(gov);
liquidationFeeBps = bound(liquidationFeeBps, 1, 10_000);
vm.assume(
liquidationFeeBps > 0 &&
liquidationFeeBps + market.liquidationIncentiveBps() < 10000
);
market.setLiquidationFeeBps(liquidationFeeBps);
vm.stopPrank();
vm.startPrank(user, user);
deposit(depositAmount);
uint maxBorrowAmount = (convertWethToDola(depositAmount) *
market.collateralFactorBps()) / 10_000;
uint borrowAmount = (maxBorrowAmount * borrowMulti) / 100;
market.borrow(borrowAmount);
vm.stopPrank();
ethFeed.changeAnswer((oracle.getFeedPrice(address(WETH)) * 9) / 10);
vm.startPrank(user2);
gibDOLA(user2, liquidationAmount);
DOLA.approve(address(market), type(uint).max);
uint marketDolaBal = DOLA.balanceOf(address(market));
uint govWethBal = WETH.balanceOf(gov);
uint repayAmount = (market.debts(user) *
market.liquidationFactorBps()) / 10_000;
if (market.debts(user) <= market.getCreditLimit(user)) {
vm.expectRevert("User debt is healthy");
market.liquidate(user, liquidationAmount);
} else if (repayAmount < liquidationAmount) {
vm.expectRevert("Exceeded liquidation factor");
market.liquidate(user, liquidationAmount);
} else {
//Successful liquidation
market.liquidate(user, liquidationAmount);
uint expectedReward = convertDolaToWeth(liquidationAmount);
expectedReward +=
(expectedReward * market.liquidationIncentiveBps()) /
10_000;
uint expectedLiquidationFee = (convertDolaToWeth(
liquidationAmount
) * market.liquidationFeeBps()) / 10_000;
assertEq(
expectedReward,
WETH.balanceOf(user2),
"user2 didn't receive proper liquidation reward"
);
assertEq(
DOLA.balanceOf(address(market)),
marketDolaBal + liquidationAmount,
"market didn't receive repaid DOLA"
);
assertEq(
WETH.balanceOf(gov),
govWethBal + expectedLiquidationFee,
"gov didn't receive proper liquidation fee"
);
}
}
function testLiquidate_Fails_When_repaidDebtIs0() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.stopPrank();
ethFeed.changeAnswer((oracle.getFeedPrice(address(WETH)) * 9) / 10);
vm.startPrank(user2);
gibDOLA(user2, 5_000 ether);
DOLA.approve(address(market), type(uint).max);
vm.expectRevert("Must repay positive debt");
market.liquidate(user, 0);
}
function testLiquidate_Fails_When_repaidDebtGtLiquidatableDebt() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.stopPrank();
ethFeed.changeAnswer((oracle.getFeedPrice(address(WETH)) * 9) / 10);
vm.startPrank(user2);
gibDOLA(user2, 5_000 ether);
DOLA.approve(address(market), type(uint).max);
uint liquidationAmount = ((market.debts(user) *
market.liquidationFactorBps()) / 10_000) + 1;
vm.expectRevert("Exceeded liquidation factor");
market.liquidate(user, liquidationAmount);
}
function testLiquidate_Fails_When_UserDebtIsHealthy() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.stopPrank();
vm.startPrank(user2);
gibDOLA(user2, 5_000 ether);
DOLA.approve(address(market), type(uint).max);
uint liquidationAmount = market.debts(user);
vm.expectRevert("User debt is healthy");
market.liquidate(user, liquidationAmount);
}
function testRepay_Successful_OwnBorrow_FullAmount() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint initialMarketBal = DOLA.balanceOf(address(market));
uint initialUserDebt = market.debts(user);
uint initialDolaBal = DOLA.balanceOf(user);
market.repay(user, market.debts(user));
assertEq(market.debts(user), 0, "user's debt was not paid");
assertEq(
initialDolaBal - initialUserDebt,
DOLA.balanceOf(user),
"DOLA was not subtracted from user"
);
assertEq(
initialMarketBal + initialUserDebt,
DOLA.balanceOf(address(market)),
"Market DOLA balance did not increase"
);
}
function testRepay_Successful_OtherUserBorrow_FullAmount() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.stopPrank();
vm.startPrank(user2);
uint initialUserDebt = market.debts(user);
uint initialDolaBal = initialUserDebt * 2;
gibDOLA(user2, initialDolaBal);
market.repay(user, market.debts(user));
assertEq(market.debts(user), 0, "user's debt was not paid");
assertEq(
initialDolaBal - initialUserDebt,
DOLA.balanceOf(user2),
"DOLA was not subtracted from user2"
);
}
function testRepay_RepaysDebt_WhenAmountSetToMaxUint() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
gibDOLA(user, 500e18);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint dolaBalAfterBorrow = DOLA.balanceOf(user);
market.repay(user, type(uint).max);
assertEq(dolaBalAfterBorrow - borrowAmount, DOLA.balanceOf(user));
assertEq(market.debts(user), 0);
}
function testRepay_Fails_WhenAmountGtThanDebt() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
gibDOLA(user, 500e18);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.expectRevert("Repayment greater than debt");
market.repay(user, borrowAmount + 1);
}
function testRepayAndWithdraw_Successful_OwnBorrow_FullAmount() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint initialMarketBal = DOLA.balanceOf(address(market));
uint initialUserDebt = market.debts(user);
uint initialDolaBal = DOLA.balanceOf(user);
market.repayAndWithdraw(market.debts(user), wethTestAmount);
assertEq(market.debts(user), 0, "user's debt was not paid");
assertEq(
initialDolaBal - initialUserDebt,
DOLA.balanceOf(user),
"DOLA was not subtracted from user"
);
assertEq(
initialMarketBal + initialUserDebt,
DOLA.balanceOf(address(market)),
"Market DOLA balance did not increase"
);
assertEq(
WETH.balanceOf(address(market.escrows(user))),
0,
"failed to withdraw WETH"
);
assertEq(
WETH.balanceOf(user),
wethTestAmount,
"failed to withdraw WETH"
);
}
function testForceReplenish() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount / 14);
uint initialReplenisherDola = DOLA.balanceOf(replenisher);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint initialUserDebt = market.debts(user);
uint initialMarketDola = DOLA.balanceOf(address(market));
vm.stopPrank();
vm.warp(block.timestamp + 5 days);
uint deficitBefore = dbr.deficitOf(user);
vm.startPrank(replenisher);
market.forceReplenish(user, deficitBefore);
assertGt(
DOLA.balanceOf(replenisher),
initialReplenisherDola,
"DOLA balance of replenisher did not increase"
);
assertLt(
DOLA.balanceOf(address(market)),
initialMarketDola,
"DOLA balance of market did not decrease"
);
assertEq(
DOLA.balanceOf(replenisher) - initialReplenisherDola,
initialMarketDola - DOLA.balanceOf(address(market)),
"DOLA balance of market did not decrease by amount paid to replenisher"
);
assertEq(
dbr.deficitOf(user),
0,
"Deficit of borrower was not fully replenished"
);
assertEq(
market.debts(user) - initialUserDebt,
(deficitBefore * replenishmentPriceBps) / 10000,
"Debt of borrower did not increase by replenishment price"
);
}
function testForceReplenishAll() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount / 14);
uint initialReplenisherDola = DOLA.balanceOf(replenisher);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint initialUserDebt = market.debts(user);
uint initialMarketDola = DOLA.balanceOf(address(market));
vm.stopPrank();
vm.warp(block.timestamp + 5 days);
uint deficitBefore = dbr.deficitOf(user);
vm.startPrank(replenisher);
market.forceReplenishAll(user);
assertGt(
DOLA.balanceOf(replenisher),
initialReplenisherDola,
"DOLA balance of replenisher did not increase"
);
assertLt(
DOLA.balanceOf(address(market)),
initialMarketDola,
"DOLA balance of market did not decrease"
);
assertEq(
DOLA.balanceOf(replenisher) - initialReplenisherDola,
initialMarketDola - DOLA.balanceOf(address(market)),
"DOLA balance of market did not decrease by amount paid to replenisher"
);
assertEq(
dbr.deficitOf(user),
0,
"Deficit of borrower was not fully replenished"
);
assertEq(
market.debts(user) - initialUserDebt,
(deficitBefore * replenishmentPriceBps) / 10000,
"Debt of borrower did not increase by replenishment price"
);
}
function testForceReplenish_Fails_When_UserHasNoDbrDeficit() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount * 100);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
uint deficit = dbr.deficitOf(user);
vm.stopPrank();
vm.startPrank(user2);
vm.expectRevert("No DBR deficit");
market.forceReplenish(user, deficit);
}
function testForceReplenish_Fails_When_NotEnoughDolaInMarket() public {
gibWeth(user, wethTestAmount);
gibDBR(user, wethTestAmount / 14);
vm.startPrank(user, user);
deposit(wethTestAmount);
uint borrowAmount = getMaxBorrowAmount(wethTestAmount);
market.borrow(borrowAmount);
vm.warp(block.timestamp + 5 days);
vm.stopPrank();
vm.startPrank(market.lender());
market.recall(DOLA.balanceOf(address(market)));
uint deficit = dbr.deficitOf(user);
vm.stopPrank();
vm.startPrank(replenisher);
vm.expectRevert("SafeMath: subtraction underflow");