diff --git a/tests/test_workspace_path_finalize.py b/tests/test_workspace_path_finalize.py
new file mode 100644
index 00000000..6e7a4fbe
--- /dev/null
+++ b/tests/test_workspace_path_finalize.py
@@ -0,0 +1,18 @@
+"""Tests for the per-run workspace path (workspace_path_finalize_20260609)."""
+import subprocess
+from pathlib import Path
+
+
+def test_live_gui_workspace_is_under_tests_artifacts(live_gui_workspace: Path) -> None:
+ """The live_gui_workspace fixture returns a path under tests/artifacts/."""
+ s = str(live_gui_workspace).replace("\\", "/")
+ assert s.startswith("tests/artifacts/live_gui_workspace_"), f"Expected tests/artifacts/live_gui_workspace_*, got {s}"
+
+
+def test_live_gui_workspace_is_gitignored(live_gui_workspace: Path) -> None:
+ """The live_gui_workspace path is gitignored (via tests/artifacts/ in .gitignore)."""
+ result = subprocess.run(
+  ["git", "check-ignore", str(live_gui_workspace)],
+  capture_output=True, text=True, cwd="."
+ )
+ assert result.returncode == 0, f"Workspace {live_gui_workspace} is not gitignored. git check-ignore output: {result.stdout!r} {result.stderr!r}"