227 lines
8.8 KiB
Solidity
227 lines
8.8 KiB
Solidity
// SPDX-License-Identifier: AGPL-3.0-or-later
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pragma solidity ^0.8.13;
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import "forge-std/Test.sol";
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import "openzeppelin-contracts/contracts/interfaces/IERC20.sol";
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import "src/interfaces/ISwapAdapterTypes.sol";
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import "src/libraries/FractionMath.sol";
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import "src/etherfi/EtherfiAdapter.sol";
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contract EtherfiAdapterTest is Test, ISwapAdapterTypes {
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EtherfiAdapter adapter;
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IWeEth weEth = IWeEth(0xCd5fE23C85820F7B72D0926FC9b05b43E359b7ee);
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IeEth eEth;
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function setUp() public {
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uint256 forkBlock = 19218495;
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vm.createSelectFork(vm.rpcUrl("mainnet"), forkBlock);
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adapter = new EtherfiAdapter(address(weEth));
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eEth = weEth.eETH();
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vm.label(address(weEth), "WeETH");
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vm.label(address(eEth), "eETH");
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}
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receive() external payable {}
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function testPriceFuzzEtherfi(uint256 amount0, uint256 amount1) public {
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bytes32 pair = bytes32(0);
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uint256[] memory limits = adapter.getLimits(pair, IERC20(address(weEth)), IERC20(address(eEth)));
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vm.assume(amount0 < limits[0] && amount0 > 0);
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vm.assume(amount1 < limits[1] && amount1 > 0);
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uint256[] memory amounts = new uint256[](2);
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amounts[0] = amount0;
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amounts[1] = amount1;
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Fraction[] memory prices = adapter.price(pair, IERC20(address(weEth)), IERC20(address(eEth)), amounts);
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for (uint256 i = 0; i < prices.length; i++) {
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assertGt(prices[i].numerator, 0);
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assertGt(prices[i].denominator, 0);
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}
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}
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function testSwapFuzzEtherfiEethWeEth(uint256 specifiedAmount, bool isBuy) public {
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OrderSide side = isBuy ? OrderSide.Buy : OrderSide.Sell;
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IERC20 eEth_ = IERC20(address(eEth));
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IERC20 weEth_ = IERC20(address(weEth));
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bytes32 pair = bytes32(0);
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uint256[] memory limits = adapter.getLimits(pair, eEth_, weEth_);
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if (side == OrderSide.Buy) {
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vm.assume(specifiedAmount < limits[1] && specifiedAmount > 100);
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/// @dev workaround for eETH "deal", as standard ERC20 does not work(balance is shares)
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deal(address(adapter), type(uint256).max);
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adapter.swap(pair, IERC20(address(0)), eEth_, OrderSide.Buy, limits[0]);
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eEth_.approve(address(adapter), type(uint256).max);
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} else {
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vm.assume(specifiedAmount < limits[0] && specifiedAmount > 100);
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/// @dev workaround for eETH "deal", as standard ERC20 does not work(balance is shares)
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deal(address(adapter), type(uint128).max);
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adapter.swap(pair, IERC20(address(0)), eEth_, OrderSide.Buy, specifiedAmount);
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eEth_.approve(address(adapter), specifiedAmount);
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}
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uint256 eEth_balance = eEth_.balanceOf(address(this));
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uint256 weEth_balance = weEth_.balanceOf(address(this));
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Trade memory trade =
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adapter.swap(pair, eEth_, weEth_, side, specifiedAmount);
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if (trade.calculatedAmount > 0) {
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if (side == OrderSide.Buy) {
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assertGe(
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specifiedAmount,
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weEth_.balanceOf(address(this)) - weEth_balance
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);
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/// @dev Transfer function contains rounding errors because of rewards in weETH contract, therefore we assume a +/-2 tolerance
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assertLe(
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specifiedAmount - 2,
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weEth_.balanceOf(address(this)) - weEth_balance
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);
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assertLe(
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trade.calculatedAmount - 2,
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eEth_balance - eEth_.balanceOf(address(this))
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);
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} else {
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assertGe(
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specifiedAmount,
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eEth_balance - eEth_.balanceOf(address(this))
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);
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/// @dev Transfer function contains rounding errors because of rewards in eETH contract, therefore we assume a +/-2 tolerance
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assertLe(
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specifiedAmount - 2,
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eEth_balance - eEth_.balanceOf(address(this))
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);
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assertEq(
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trade.calculatedAmount,
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weEth_.balanceOf(address(this)) - weEth_balance
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);
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}
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}
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}
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function testSwapFuzzEtherfiWeEthEth(uint256 specifiedAmount, bool isBuy) public {
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OrderSide side = isBuy ? OrderSide.Buy : OrderSide.Sell;
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IERC20 eEth_ = IERC20(address(eEth));
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IERC20 weEth_ = IERC20(address(weEth));
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bytes32 pair = bytes32(0);
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uint256[] memory limits = adapter.getLimits(pair, weEth_, eEth_);
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if (side == OrderSide.Buy) {
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vm.assume(specifiedAmount < limits[1] && specifiedAmount > 100);
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/// @dev workaround for eETH "deal", as standard ERC20 does not work(balance is shares)
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deal(address(adapter), type(uint256).max);
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adapter.swap(pair, IERC20(address(0)), weEth_, OrderSide.Buy, limits[0]);
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weEth_.approve(address(adapter), type(uint256).max);
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} else {
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vm.assume(specifiedAmount < limits[0] && specifiedAmount > 100);
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/// @dev workaround for eETH "deal", as standard ERC20 does not work(balance is shares)
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deal(address(adapter), type(uint128).max);
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adapter.swap(pair, IERC20(address(0)), weEth_, OrderSide.Buy, specifiedAmount);
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weEth_.approve(address(adapter), specifiedAmount);
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}
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uint256 eEth_balance = eEth_.balanceOf(address(this));
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uint256 weEth_balance = weEth_.balanceOf(address(this));
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Trade memory trade =
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adapter.swap(pair, weEth_, eEth_, side, specifiedAmount);
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if (trade.calculatedAmount > 0) {
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if (side == OrderSide.Buy) {
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assertGe(
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specifiedAmount,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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/// @dev Transfer function contains rounding errors because of rewards in weETH contract, therefore we assume a +/-2 tolerance
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assertLe(
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specifiedAmount - 2,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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assertLe(
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trade.calculatedAmount - 2,
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weEth_balance - weEth_.balanceOf(address(this))
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);
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} else {
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assertGe(
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specifiedAmount,
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weEth_balance - weEth_.balanceOf(address(this))
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);
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/// @dev Transfer function contains rounding errors because of rewards in eETH contract, therefore we assume a +/-2 tolerance
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assertLe(
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specifiedAmount - 2,
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weEth_balance - weEth_.balanceOf(address(this))
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);
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assertEq(
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trade.calculatedAmount,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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}
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}
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}
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function testSwapFuzzEtherfiEthEeth(uint256 specifiedAmount, bool isBuy) public {
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OrderSide side = isBuy ? OrderSide.Buy : OrderSide.Sell;
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IERC20 eth_ = IERC20(address(0));
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IERC20 eEth_ = IERC20(address(eEth));
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bytes32 pair = bytes32(0);
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uint256[] memory limits = adapter.getLimits(pair, eth_, eEth_);
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if (side == OrderSide.Buy) {
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vm.assume(specifiedAmount < limits[1] && specifiedAmount > 10);
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deal(address(adapter), 100**18);
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} else {
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vm.assume(specifiedAmount < limits[0] && specifiedAmount > 10);
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deal(address(adapter), specifiedAmount);
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}
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uint256 eth_balance = address(adapter).balance;
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uint256 eEth_balance = eEth_.balanceOf(address(this));
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Trade memory trade =
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adapter.swap(pair, eth_, eEth_, side, specifiedAmount);
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if (trade.calculatedAmount > 0) {
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if (side == OrderSide.Buy) {
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assertGe(
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specifiedAmount,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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/// @dev Transfer function contains rounding errors because of rewards in eETH contract, therefore we assume a +/-2 tolerance
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assertLe(
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specifiedAmount - 2,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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assertEq(
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trade.calculatedAmount,
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eth_balance - address(adapter).balance
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);
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} else {
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assertEq(
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specifiedAmount,
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eth_balance - address(adapter).balance
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);
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assertEq(
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trade.calculatedAmount,
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eEth_.balanceOf(address(this)) - eEth_balance
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);
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}
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}
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}
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}
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