feat: Implemented swap

evm/test/EtherfiAdapter.t.sol

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+pragma solidity ^0.8.13;
+
+import "forge-std/Test.sol";
+import "openzeppelin-contracts/contracts/interfaces/IERC20.sol";
+import "src/interfaces/ISwapAdapterTypes.sol";
+import "src/libraries/FractionMath.sol";
+import "src/etherfi/EtherfiAdapter.sol";
+
+contract EtherfiAdapterTest is Test, ISwapAdapterTypes {
+    EtherfiAdapter adapter;
+    IWeEth wEeth = IWeEth(0xCd5fE23C85820F7B72D0926FC9b05b43E359b7ee);
+    IeEth eEth;
+
+    function setUp() public {
+        uint256 forkBlock = 19218495;
+        vm.createSelectFork(vm.rpcUrl("mainnet"), forkBlock);
+        adapter = new EtherfiAdapter(address(wEeth));
+        eEth = wEeth.eETH();
+
+        vm.label(address(wEeth), "WeETH");
+        vm.label(address(eEth), "eETH");
+    }
+
+    receive() external payable {}
+
+    function testMe() public {
+        // // uint256 requiredETH = adapter.getETHRequiredToMintEeth(1 ether);
+        // deal(address(adapter), 100 ether);
+        // // adapter.swapEthForEeth(1 ether, OrderSide.Buy);
+        // IERC20(address(eEth)).approve(address(adapter), type(uint256).max);
+
+        // console.log(IERC20(address(eEth)).balanceOf(address(this)));
+        // console.log(adapter.swapEthForWeEth(1 ether, OrderSide.Buy));
+        // console.log(IERC20(address(eEth)).balanceOf(address(this)));
+    }
+}