diff --git a/test/advent_code2024/solutions/day03/day3_test.exs b/test/advent_code2024/solutions/day03/day3_test.exs
index 4ce425b..2519bb7 100644
--- a/test/advent_code2024/solutions/day03/day3_test.exs
+++ b/test/advent_code2024/solutions/day03/day3_test.exs
@@ -8,7 +8,7 @@ defmodule AdventCode2024.Solutions.Day03Test do
     end
 
     test "returns error for invalid file" do
-      assert Day03.solve("nonexistent.txt") == {:error, :enoent}
+      assert Day03.solve("priv/nonexistent.txt") == {:error, :enoent}
     end
 
     test "handles single valid multiplication" do
@@ -48,7 +48,7 @@ defmodule AdventCode2024.Solutions.Day03Test do
     end
 
     test "returns error for invalid file" do
-      assert Day03.solve_part2("nonexistent.txt") == {:error, :enoent}
+      assert Day03.solve_part2("priv/nonexistent.txt") == {:error, :enoent}
     end
 
     test "handles single multiplication with do/don't controls" do
@@ -73,7 +73,12 @@ defmodule AdventCode2024.Solutions.Day03Test do
 
     test "ignores invalid control instructions" do
       input = "mul(2,4)dont()mul(5,5)doo()mul(3,3)"
-      assert Day03.solve_part2(input) == {:ok, 38}
+      assert Day03.solve_part2(input) == {:ok, 42}
+    end
+
+    test "solves README example for part 2" do
+      input = "xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))"
+      assert Day03.solve_part2(input) == {:ok, 48}
     end
   end
 end