feat: UniswapV2 SwapExecutor

--- don't change below this line ---
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foundry/test/Constants.sol

@@ -14,6 +14,7 @@ contract Constants is Test {
     address DUMMY = makeAddr("dummy");
 
     address WETH_ADDR = address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2);
+    address DAI_ADDR = address(0x6B175474E89094C44Da98b954EedeAC495271d0F);
 
     /**
      * @dev Deploys a dummy contract with non-empty bytecode

foundry/test/executors/UniswapV2SwapExecutor.t.sol

@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+import "@src/executors/Uniswapv2SwapExecutor.sol";
+import {Test} from "../../lib/forge-std/src/Test.sol";
+import {Constants} from "../Constants.sol";
+
+contract UniswapV2SwapExecutorExposed is UniswapV2SwapExecutor {
+    function decodeParams(bytes calldata data)
+        external
+        pure
+        returns (
+            IERC20 inToken,
+            address target,
+            address receiver,
+            bool zeroForOne,
+            bool exactOut
+        )
+    {
+        return _decodeData(data);
+    }
+
+    function getAmountOut(address target, uint256 amountIn, bool zeroForOne)
+        external
+        view
+        returns (uint256 amount)
+    {
+        return _getAmountOut(target, amountIn, zeroForOne);
+    }
+}
+
+contract UniswapV2SwapExecutorTest is
+    UniswapV2SwapExecutorExposed,
+    Test,
+    Constants
+{
+    using SafeERC20 for IERC20;
+
+    UniswapV2SwapExecutorExposed uniswapV2Exposed;
+    IERC20 WETH = IERC20(WETH_ADDR);
+    IERC20 DAI = IERC20(DAI_ADDR);
+    address WETH_DAI_POOL = 0xA478c2975Ab1Ea89e8196811F51A7B7Ade33eB11;
+
+    function setUp() public {
+        uint256 forkBlock = 17323404;
+        vm.createSelectFork(vm.rpcUrl("mainnet"), forkBlock);
+        uniswapV2Exposed = new UniswapV2SwapExecutorExposed();
+    }
+
+    function testDecodeParams() public view {
+        bytes memory params =
+            abi.encodePacked(WETH_ADDR, address(2), address(3), false, true);
+
+        (
+            IERC20 tokenIn,
+            address target,
+            address receiver,
+            bool zeroForOne,
+            bool exactOut
+        ) = uniswapV2Exposed.decodeParams(params);
+
+        assertEq(address(tokenIn), WETH_ADDR);
+        assertEq(target, address(2));
+        assertEq(receiver, address(3));
+        assertEq(zeroForOne, false);
+        assertEq(exactOut, true);
+    }
+
+    function testAmountOut() public view {
+        uint256 amountOut =
+            uniswapV2Exposed.getAmountOut(WETH_DAI_POOL, 10 ** 18, false);
+        uint256 expAmountOut = 1847751195973566072891;
+        assertEq(amountOut, expAmountOut);
+    }
+
+    // triggers a uint112 overflow on purpose
+    function testAmountOutInt112Overflow() public view {
+        address target = 0x0B9f5cEf1EE41f8CCCaA8c3b4c922Ab406c980CC;
+        uint256 amountIn = 83638098812630667483959471576;
+
+        uint256 amountOut =
+            uniswapV2Exposed.getAmountOut(target, amountIn, true);
+
+        assertGe(amountOut, 0);
+    }
+
+    function testSwap() public {
+        uint256 amountIn = 10 ** 18;
+        uint256 amountOut = 1847751195973566072891;
+        bool zeroForOne = false;
+        bool exactOut = true;
+        bytes memory protocolData = abi.encodePacked(
+            WETH_ADDR, WETH_DAI_POOL, BOB, zeroForOne, exactOut
+        );
+
+        vm.startPrank(ADMIN);
+        deal(WETH_ADDR, address(uniswapV2Exposed), amountIn);
+        uniswapV2Exposed.swap(amountIn, protocolData);
+        vm.stopPrank();
+
+        uint256 finalBalance = DAI.balanceOf(BOB);
+        assertGe(finalBalance, amountOut);
+    }
+}