missing fixture modifier

foundry.toml

@@ -4,6 +4,6 @@ out = 'out'
 libs = ['lib']
 optimizer = false
 optimizer_runs = 200
-ignored_error_codes=[3628, 5159]
+ignored_error_codes=[3628, 5159, 1878]
 
 # See more config options https://github.com/foundry-rs/foundry/tree/master/config

src/PuzzleBoxSolution.sol

@@ -1,4 +1,3 @@
-// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.19;
 
 import "./PuzzleBox.sol";

test/PuzzleBox.t.sol

@@ -20,12 +20,14 @@ contract PuzzleBoxFixture is Test {
     PuzzleBox _puzzle;
     PuzzleBoxSolution _solution;
 
-    function setUp() external {
+    // Use a modifier instead of setUp() to keep it all in one tx.
+    modifier initEnv() {
         _puzzle = _factory.createPuzzleBox{value: 1337}();
         _solution = PuzzleBoxSolution(address(new SolutionContainer(type(PuzzleBoxSolution).runtimeCode)));
+        _;
     }
 
-    function test_win() external {
+    function test_win() external initEnv {
         // Uncomment to verify a complete solution.
         // vm.expectEmit(false, false, false, false, address(_puzzle));
         // emit Open(address(0));