feat: UniswapXFiller skeleton

foundry/test/uniswap_x/UniswapXFiller.t.sol

@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: BUSL-1.1
+pragma solidity ^0.8.26;
+
+import "@src/executors/UniswapV4Executor.sol";
+import "forge-std/Test.sol";
+import "@src/uniswap_x/UniswapXFiller.sol";
+import "../TychoRouterTestSetup.sol";
+
+contract UniswapXFillerTest is Test, TychoRouterTestSetup {
+    address EXECUTOR = makeAddr("executor");
+    address REACTOR = address(0x00000011F84B9aa48e5f8aA8B9897600006289Be);
+
+    UniswapXFiller filler;
+    address fillerAddr;
+
+    bytes32 public constant EXECUTOR_ROLE =
+        0xd8aa0f3194971a2a116679f7c2090f6939c8d4e01a2a8d7e41d55e5351469e63;
+
+    event CallbackVerifierSet(address indexed callbackVerifier);
+    event Withdrawal(
+        address indexed token, uint256 amount, address indexed receiver
+    );
+
+    function fillerSetup() public {
+        vm.startPrank(ADMIN);
+        filler = new UniswapXFiller(tychoRouterAddr);
+        fillerAddr = address(filler);
+        filler.grantRole(keccak256("EXECUTOR_ROLE"), EXECUTOR);
+        vm.stopPrank();
+    }
+
+    function testTychoAddressZero() public {
+        vm.expectRevert(UniswapXFiller__AddressZero.selector);
+        filler = new UniswapXFiller(address(0));
+    }
+
+    function testWithdrawNative() public {
+        fillerSetup();
+        vm.startPrank(ADMIN);
+        // Send 100 ether to filler
+        assertEq(fillerAddr.balance, 0);
+        assertEq(ADMIN.balance, 0);
+        vm.deal(fillerAddr, 100 ether);
+        vm.expectEmit();
+        emit Withdrawal(address(0), 100 ether, ADMIN);
+        filler.withdrawNative(ADMIN);
+        assertEq(fillerAddr.balance, 0);
+        assertEq(ADMIN.balance, 100 ether);
+        vm.stopPrank();
+    }
+
+    function testWithdrawNativeAddressZero() public {
+        fillerSetup();
+        vm.deal(fillerAddr, 100 ether);
+        vm.startPrank(ADMIN);
+        vm.expectRevert(UniswapXFiller__AddressZero.selector);
+        filler.withdrawNative(address(0));
+        vm.stopPrank();
+    }
+
+    function testWithdrawNativeMissingRole() public {
+        fillerSetup();
+        vm.deal(fillerAddr, 100 ether);
+        // Not role ADMIN
+        vm.startPrank(BOB);
+        vm.expectRevert();
+        filler.withdrawNative(ADMIN);
+        vm.stopPrank();
+    }
+
+    function testWithdrawERC20Tokens() public {
+        fillerSetup();
+
+        IERC20[] memory tokens = new IERC20[](2);
+        tokens[0] = IERC20(WETH_ADDR);
+        tokens[1] = IERC20(USDC_ADDR);
+        for (uint256 i = 0; i < tokens.length; i++) {
+            deal(address(tokens[i]), fillerAddr, 100 ether);
+        }
+
+        vm.startPrank(ADMIN);
+        filler.withdraw(tokens, ADMIN);
+
+        // Check balances after withdrawing
+        for (uint256 i = 0; i < tokens.length; i++) {
+            // slither-disable-next-line calls-loop
+            assertEq(tokens[i].balanceOf(fillerAddr), 0);
+            // slither-disable-next-line calls-loop
+            assertEq(tokens[i].balanceOf(ADMIN), 100 ether);
+        }
+        vm.stopPrank();
+    }
+
+    function testWithdrawERC20TokensAddressZero() public {
+        fillerSetup();
+
+        IERC20[] memory tokens = new IERC20[](2);
+        tokens[0] = IERC20(WETH_ADDR);
+        tokens[1] = IERC20(USDC_ADDR);
+        for (uint256 i = 0; i < tokens.length; i++) {
+            deal(address(tokens[i]), fillerAddr, 100 ether);
+        }
+
+        vm.startPrank(ADMIN);
+        vm.expectRevert(UniswapXFiller__AddressZero.selector);
+        filler.withdraw(tokens, address(0));
+        vm.stopPrank();
+    }
+
+    function testWithdrawERC20TokensAddressMissingRole() public {
+        fillerSetup();
+
+        IERC20[] memory tokens = new IERC20[](2);
+        tokens[0] = IERC20(WETH_ADDR);
+        tokens[1] = IERC20(USDC_ADDR);
+        for (uint256 i = 0; i < tokens.length; i++) {
+            deal(address(tokens[i]), fillerAddr, 100 ether);
+        }
+
+        // Not role ADMIN
+        vm.startPrank(BOB);
+        vm.expectRevert();
+        filler.withdraw(tokens, ADMIN);
+        vm.stopPrank();
+    }
+}