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StrategyOperation.t.sol
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StrategyOperation.t.sol
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// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.12;
import "forge-std/console.sol";
import {StrategyFixture} from "./utils/StrategyFixture.sol";
import {StrategyParams} from "../interfaces/Vault.sol";
contract StrategyOperationsTest is StrategyFixture {
// setup is run on before each test
function setUp() public override {
// setup vault
super.setUp();
}
function testSetupVaultOK() public {
console.log("address of vault", address(vault));
assertTrue(address(0) != address(vault));
assertEq(vault.token(), address(want));
assertEq(vault.depositLimit(), type(uint256).max);
}
// TODO: add additional check on strat params
function testSetupStrategyOK() public {
console.log("address of strategy", address(strategy));
assertTrue(address(0) != address(strategy));
assertEq(address(strategy.vault()), address(vault));
}
/// Test Operations
function testStrategyOperation(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
uint256 balanceBefore = want.balanceOf(address(user));
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
assertRelApproxEq(want.balanceOf(address(vault)), _amount, DELTA);
skip(3 minutes);
vm.prank(strategist);
strategy.harvest();
assertRelApproxEq(strategy.estimatedTotalAssets(), _amount, DELTA);
// tend
vm.prank(strategist);
strategy.tend();
vm.prank(user);
vault.withdraw();
assertRelApproxEq(want.balanceOf(user), balanceBefore, DELTA);
}
function testEmergencyExit(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Deposit to the vault
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
skip(1);
vm.prank(strategist);
strategy.harvest();
assertRelApproxEq(strategy.estimatedTotalAssets(), _amount, DELTA);
// set emergency and exit
vm.prank(gov);
strategy.setEmergencyExit();
skip(1);
vm.prank(strategist);
strategy.harvest();
assertLt(strategy.estimatedTotalAssets(), _amount);
}
function testProfitableHarvest(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Deposit to the vault
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
assertRelApproxEq(want.balanceOf(address(vault)), _amount, DELTA);
uint256 beforePps = vault.pricePerShare();
// Harvest 1: Send funds through the strategy
skip(1);
vm.prank(strategist);
strategy.harvest();
assertRelApproxEq(strategy.estimatedTotalAssets(), _amount, DELTA);
// TODO: Add some code before harvest #2 to simulate earning yield
// Harvest 2: Realize profit
skip(1);
vm.prank(strategist);
strategy.harvest();
skip(6 hours);
// TODO: Uncomment the lines below
// uint256 profit = want.balanceOf(address(vault));
// assertGt(want.balanceOf(address(strategy)) + profit, _amount);
// assertGt(vault.pricePerShare(), beforePps)
}
function testChangeDebt(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Deposit to the vault and harvest
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
vm.prank(gov);
vault.updateStrategyDebtRatio(address(strategy), 5_000);
skip(1);
vm.prank(strategist);
strategy.harvest();
uint256 half = uint256(_amount / 2);
assertRelApproxEq(strategy.estimatedTotalAssets(), half, DELTA);
vm.prank(gov);
vault.updateStrategyDebtRatio(address(strategy), 10_000);
skip(1);
vm.prank(strategist);
strategy.harvest();
assertRelApproxEq(strategy.estimatedTotalAssets(), _amount, DELTA);
// In order to pass these tests, you will need to implement prepareReturn.
// TODO: uncomment the following lines.
// vm.prank(gov);
// vault.updateStrategyDebtRatio(address(strategy), 5_000);
// skip(1);
// vm.prank(strategist);
// strategy.harvest();
// assertRelApproxEq(strategy.estimatedTotalAssets(), half, DELTA);
}
function testProfitableHarvestOnDebtChange(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Deposit to the vault
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
assertRelApproxEq(want.balanceOf(address(vault)), _amount, DELTA);
uint256 beforePps = vault.pricePerShare();
// Harvest 1: Send funds through the strategy
skip(1);
vm.prank(strategist);
strategy.harvest();
assertRelApproxEq(strategy.estimatedTotalAssets(), _amount, DELTA);
// TODO: Add some code before harvest #2 to simulate earning yield
vm.prank(gov);
vault.updateStrategyDebtRatio(address(strategy), 5_000);
// In order to pass these tests, you will need to implement prepareReturn.
// TODO: uncomment the following lines.
/*
// Harvest 2: Realize profit
skip(1);
vm.prank(strategist);
strategy.harvest();
//Make sure we have updated the debt ratio of the strategy
assertRelApproxEq(
strategy.estimatedTotalAssets(),
_amount / 2,
DELTA
);
skip(6 hours);
//Make sure we have updated the debt and made a profit
uint256 vaultBalance = want.balanceOf(address(vault));
StrategyParams memory params = vault.strategies(address(strategy));
//Make sure we got back profit + half the deposit
assertRelApproxEq(
_amount / 2 + params.totalGain,
vaultBalance,
DELTA
);
assertGe(vault.pricePerShare(), beforePps);
*/
}
function testSweep(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Strategy want token doesn't work
vm.prank(user);
want.transfer(address(strategy), _amount);
assertEq(address(want), address(strategy.want()));
assertGt(want.balanceOf(address(strategy)), 0);
vm.prank(gov);
vm.expectRevert("!want");
strategy.sweep(address(want));
// Vault share token doesn't work
vm.prank(gov);
vm.expectRevert("!shares");
strategy.sweep(address(vault));
// TODO: If you add protected tokens to the strategy.
// Protected token doesn't work
// vm.prank(gov);
// vm.expectRevert("!protected");
// strategy.sweep(strategy.protectedToken());
uint256 beforeBalance = weth.balanceOf(gov);
uint256 wethAmount = 1 ether;
deal(address(weth), user, wethAmount);
vm.prank(user);
weth.transfer(address(strategy), wethAmount);
assertNeq(address(weth), address(strategy.want()));
assertEq(weth.balanceOf(user), 0);
vm.prank(gov);
strategy.sweep(address(weth));
assertRelApproxEq(weth.balanceOf(gov), wethAmount + beforeBalance, DELTA);
}
function testTriggers(uint256 _amount) public {
vm.assume(_amount > minFuzzAmt && _amount < maxFuzzAmt);
deal(address(want), user, _amount);
// Deposit to the vault and harvest
vm.prank(user);
want.approve(address(vault), _amount);
vm.prank(user);
vault.deposit(_amount);
vm.prank(gov);
vault.updateStrategyDebtRatio(address(strategy), 5_000);
skip(1);
vm.prank(strategist);
strategy.harvest();
strategy.harvestTrigger(0);
strategy.tendTrigger(0);
}
}